Comp short travel lifters noisy 004" preload because they only have . 90/ 4000lbs RW 11. 020” to . Keep all clearances reasonable and use light weight oil for high performance engine (i. The Comp 857 has a taller overall height and the oil band is higher. 004" preload and have only . 5 years now. 608 Jun 11, 2021 · Be careful with that comp kit. Nov 3, 2021 · Re: Comp Cams EVOLUTION hydraulic roller lifters Post by In-Tech » Wed Nov 03, 2021 6:57 pm RW TECH wrote: ↑ Wed Nov 03, 2021 5:58 pm LOL!! about their comments on noise, as if the lifter is the culprit. Comp recommends 0-1/4 turn. They have excessive leak down and the hydraulics won't hold adjustment like they should. 004” and must be held with poly-locks. Dec 12, 2017 · General Q & A - Comp cams Short travel lifters BBC - Looking for opinions based on experience with the product. Several good choices. 005 (like from a . 012" & you can understand Jul 16, 2020 · We replaced the ticking set of lifters with howards 91161, that I have used In three or four builds with sucess. 045 to . If "lash" needs to be changed so Jan 4, 2022 · I'll be running Comp 875-16 short travel lifters. Most preload ran is 1. 5 on exhaust. These Jun 22, 2017 · I ran the comp short travel lifters with their 953 spring installed at 1. 139 to . youtub Welcome to the official Johnson Lifters® web page. This is from Comp Cams literature: "COMP Cams® Short Travel Race Hydraulic Roller Lifters are engineered from a patent pending design that specifically performs at higher engine speeds. Wonder how you set the preload Sep 12, 2022 · Advanced Search Cancel Jan 11, 2010 · Fire your bullets!!! Trash Or Be Trashed. 002”- . 610/. Number 7 exhaust lifter collapsed completely. More mass than the regular lifter. Oct 23, 2022 · ( same spring pressure I ran on Johnson short travel lifters ) . 080-inch, the Evolution lifter offers . they are super quiet. Find COMP Cams Short Travel XD Hydraulic Roller Lifters and get Free Shipping on Orders Over $109 at Summit Racing! COMP Cams short travel XD hydraulic roller lifters offer the advantages of both light pre-load and reduced oil volume, producing the most stable and highest-revving hydraulic lifter available. I remember when I was putting the engine together I could hear the valves snapping shut when rolling the motor over without the plugs in. lol Bought a set of Morel 6591 solid lifters and installed them 2. Mine are noisy but work well up to 6500 RPM. I did not like the noisy lifters so I replaced them with Comp Cams 863-16 limited travel lifters. Thanks. Oem roller style cam also takes a different timing set vs retro fit/flat tappet. *. 050) shim to tighten things up, they got as smooth as butter. Jul 6, 2019 · The engine has now developed lifter noise (60 plus psi oil pressure) running 10-30 Castrol. 25 turns,set cold (alum head/iron block). Short travel lifters are usually noisy. Mar 16, 2024 · Crower solid roller lifters with hippo and Johnson short travel lifters here. 25 turns. It took multiple tries to adjust the rockers just to get them near acceptable, and then after a few 7000rpm shifts/passes the some of them on the passenger side started clattering. Never had an issue. Jan 7, 2017 · the short travel lifters only have a short amount of plunger movement in the lifter body it is somewhere around . 630" lift) that isn't that aggressive and the lifter noise is awful. Comp makes a short travel lifter you would not turn that one more than an 1/8 or so but a good Morel likes 3/4-1 turn typically you want 1/3rd of the overall travel as preload , clatter at cold idle is one thing but clatter at 4500 is more of a concern those lifters may be bleeding down is this a new thing or always did this ? Sep 4, 2009 · They used the "recommended" Comp Cams Pro Magnum 8921 roller lifters as part of the package. That is the whole reason for hydraulic. Not 3 days and only tuning and mild street driving on it and 2 lifters wouldn't pump up and became noisy. Dec 19, 2008 · I since took the Comp out and stuck my Lunati back in, again with the SR liftersa bit noisy, but the thing is quieter with the SR's than the HR lifters. 200-inch of travel, so this is a diverse full-travel lifter. 68" installed height that the 348 requires. LIfters shimmed to give them little travel and springs that you would use on solid rollers. 580” lift hope to put it in the test stand early next year curoius if they will be loudest so far? Only used one set of regular Comp Bbc lifters in the past and no problem with them. I am running a BTR cam (230/246 @ . I've used Howards Cams springs #98437 because CC don't offer a spring at the low 1. If "lash" needs to be changed so Short Travel Hydraulic Roller Lifters Applicable Part #s: 875-16, 877-16, 15850-16, 15853-16, 15854-16, 15956-16 Thank you for choosing COMP Cams® products; we are proud to be your manufacturer of choice. Apr 5, 2022 · Has anyone recently bought a Comp Cam hydraulic flat tappet cam and lifter kit and had issues with lifters getting stuck? I bought a CL11-302-4 kit last June and waited 3 months to get it, and according to Comp, they were waiting on the lifters. 650" lift. roller lifters , if they are , 1/8 turn is the limit anymore you'll ruin them . May 5, 2017 · The design of the fast ramp hydraulic camshafts makes lifters noisy if they have . Aug 5, 2016 · Be careful putting too much preload in a short travel lifter. The person who really hears the thrashing is the one you pull up beside. Malik wrote:Except for the race / short travel hydraulic roller lifters from Competition Cams, their regular hydraulic roller lifters are trash. 215; Most short travel lifters =. Oct 16, 2016 · Walter R. Cold Start: engine starts and runs fine but then lifter starts making noises. I've been running OEM Ford hydraulic roller lifters for most of 14 years. Thats when you either make or purchase short travel lifters. Aug 21, 2010 · I have a 440 with comp cams extreme energy 274H cam with matching single valve springs, comp. Our 427 at 20-24 could still be heard. 7500rpm no problems. 6 rockers, 5/16 pushrods and steel retainers, zero issues. Ran 1/8 of a turn of pre load, they did not require a lot. LOL Nov 13, 2019 · We installed the comp hyd Roller lifters in our 455 on a butler cam (236/242@50). Cant' really say I noticed any difference in noise with any setting from 1/2 turn to the 1. I have them in my 406, and I like them, except for the adjustment process. Oct 7, 2019 · i have the johnson/isky short travel bushed lifters in my bbc for 2. Lifters are Morel # 6591 SBC Pro Sportsman , full time pressure oiling . 025 preload on the lifter. May 2, 2009 · C3 Tech/Performance - High RPM short travel HR lifters, solid cam - ok, here we go. 050" and . '87 20th Anniversary Cougar - 428W. At 24-28 the lifters were definitely there. I've found most roller lifters noisey, GM even changed there knock filter back in the day when they changed over to roller. 010 of oil filled lash. 4 %âãÏÓ 12 0 obj > endobj xref 12 32 0000000016 00000 n 0000001169 00000 n 0000000936 00000 n 0000001247 00000 n 0000001425 00000 n 0000001620 00000 n 0000002202 00000 n 0000002701 00000 n 0000002735 00000 n 0000002998 00000 n 0000003243 00000 n 0000003319 00000 n 0000004010 00000 n 0000004763 00000 n 0000004916 00000 n 0000005143 00000 n 0000005927 00000 n 0000006697 00000 n Jul 14, 2017 · I think the new short travel lifters do what you're saying. A reduction in plunger travel, which is usually about half that of a traditional full-travel lifter, reduces the amount of oil required to fill the lifter, which in turn reduces the compression of aerated oil. I also have a set of Morel Hyd Rollers in my BBC GTO - They are noisy till they get warmed up. no internal motion to take up any slack. Gives you an effective solid lifter with . Not that I have ever done that. Oct 24, 2017 · I'm running a set of Comp Cams link bar style short-travel hydraulic roller lifters in an SBC that I can't seem to quiet down. Jun 9, 2019 · I sold my Pontiac in 1975 and have used Comp Cams 858-16 Pro Magnum limited travel lifters since then. Regarding the fact*Comp's Short Travel lifters have a tendency to be very noisy. When you take a flat tappet from Comp apart, they look like Stanadyne or older Eatons. Not a problem if you don't have crazy lift numbers that require aggressive acceleration ramps and use the right valve springs. You set short travel hydraulic lifters as if they are solid lifters. 690-7. 632 cam. At Johnson Lifters® we continuously use research and development with tooling and techniques for innovative solutions to the High Performance Automotive Industry; Axle Oiling to accommodate High Spring Pressures, Variable duration to assist with Torque and Vacuum, High Flow push rod seats to keep rocker arms well lubed and Unmatched Oct 12, 2015 · I believe this latest onslaught of noisy cams is the result of some of the cam manufacturers grinding cams with ultra-agressive lobe designs, some of which are just short of having the edges of the flat tappet lifter dig into the sides of the cam lobes as the lobe comes around to lift them. Comp makes a set of stock replacement-style, short-travel hydraulic roller lifters for the LS family of engines – we’ve included their part number in the attached chart above. Vance did the dyno pulls a few weeks ago (I'll post those dyno results after Round II is performed), and noticed that there was a pop or two every now and again - sometimes when the engine was idling, sometimes at the beginning of a pull, and even once Jun 26, 2009 · If you want short travel I have always used Comp short travel with sucess they are little less noisy than morels lifters, to my surprise. 510 . You can use Comp Cams short travel "Cheater" lifters and adjust most of the lifter noise out. Does anyone know how much travel the Comp 854-16 lifters have? Feb 6, 2021 · Always best to find out what style lifter the cam maker recommends and go with that . They set at . Mar 20, 2021 · Not a recommendation for their use, just a tid bit here. 650" lift lobe, has proven to be stable to 6000+. 050 cam with a long travel lifter (short is more desirable) and a spring with 110 lbs on the seat. . tappet lifters with COMP Cams® Cam and Lifter Installation Lube (Part #103) supplied with flat tappet cams. 004" lifter preload, similar to lash with solid lifters. 904 Chevy HYD lifters ALLLL GM 502 and 572 run their lifters and no problems and in the ARCA series same lifters no issues. Dec 29, 2008 · Gives you an effective solid lifter with . As for noise - it can be about a million things. Feb 8, 2014 · Got a good deal on two sets of Comp short travel I have the first set in a 454 with a pretty mild cam 224/234@050 and . Then add that aluminum Ls engines expand about . The preload setting must be limited to . 141" of travel are designed to go 7000 rpm plus. Comp Cams lifters were more noisy than stock GM lifters and a stock Pontiac camshaft. If Im going to be hearing them anyways . Comp cams use the wording as others do of low/short travel hyd lifters . 015-inch of preload. made 430hp#5250 with most of the stock peaces and 750 quad. 060”. When I bough mine years ago the Rep was very insistent that I pay attention to sitting the lash. Aug 1, 2013 · My cam was 248/258 and I ran comp short travel lifters (non link bar) with 953 springs, whisper quiet. I know im gonna get crucified for throwing this one out there, but it should be fun. worked well and the lifters came @ . Pushrod I have (7. Im using a 5w/40 syntetic oil with spec thats should work 14 cst/100deg c. 8:1/T56/3. Also used comp both the regular and short travel with no problems. When using the COMP 857 lifters you must check to confirm that the top of the oil relief band doesn’t get to close to the top of the lifter bore as the oil relief band is much higher in these lifters. Until you float the valvetrain trying to be a hero, fill the lifters, and everything stacks up. They are the same as the old Melling JB951R limited travel lifters. Nov 1, 2019 · Thick oil and cold operating temperatures are a reciepe for disaster. 150-inch of travel,” clarifies Potter. May 27, 2019 · I had an issue with some comp short travel lifters a while back , and I put some Johnson lifters in . • Precision ground needle roller bearing with high chromium steel axle for long life and minimal friction. 004 lash cold . You must have polylocks with short travel lifters because those lifters must be set and held at . 012 plunger travel vs the typical . I agree. They have a heavy duty C-clip pushrod seat retainer because of the close preload setting. otherwise they have been good. 010- to 0. Lot's of runs and street miles. Morel hydraulic roller lifters Others work better with a heavy pre-load because oil volume is reduced under the plunger, which increases stiffness. I called them after my machine shop saw it and they said everything is perfect. The anti pump ups will be noisy. 651 cam and with the Crane 236/244, . 002” - . We replaced the ticking set of lifters with howards 91161, that I have used In three or four builds with sucess. Also using the Comp Cams shaft roller rocker arms. The lifters Comp sells don't look like those, and that company says they don't sell much to Comp. When engines are equipped with a hydraulic lifter, high rpm is limited by the improper position of the lifter’s internal piston as the lifter inevitably Aug 29, 2022 · Originally built 3 years ago it had a set of Morel lifters in it. The assembled my shortblock only uses Johnson's on hyd rollers. Jan 9, 2013 · Been trying to get an answer on the Comp Short Travel hydraulic roller lifters. I used a dual valve spring that has 170 to 175 lbs on the seat with 420 to 440 lbs open pressure. Apr 21, 2018 · Comp cams short travel lifters. When you install the lifters, make sure they fit well. Drove again and then load ticking to slapping noise. Did I use to heavy of a spring. Limited travel lifters cannot pump up and float the valves because like solid lifters, they have nowhere to pump up to. This produces a flat tappet lifters with an extremely hard, tough, and slick face that reduces friction at the cam lobe. Apr 28, 2017 · The design of the fast ramp hydraulic camshafts makes lifters noisy if they have . Nov 19, 2009 · This month's PHR has a small write-up on these. In my communication with Steve*Brule*at Westech Performance he has stated the same thing about them, his opinion they are good if you can put up with the noise. Mainly, want to see how they are set and if they are noisy. I currently run my Crane lifters to one full turn preload and run Beehives. They will not pump up and float the valves because there is nowhere for the lifters to pump up to. Jun 23, 2022 · These characteristics are similar to a short-travel performance lifter. I installed it and went through all the procedures as instructed and got a stuck lifter. I've read big cam profiles/alum heads/hedders you'll hear "some". May 5, 2021 · Has anyone else ever used Comp Cams HYD roller lifters (retro link bar style) and had an issue like i'm having. 651/. Apr 20, 2017 · Get a camshaft that does not make you resort to low rear end gearing or high stall torque converter, . The XD versions feature heavy-duty tool steel pushrod seats. They're designed to limit the lifter's internal piston as it is pumped up. Jul 2, 2020 · The one below with comp short travel has a Melling select 10774, still with the pink spring havnt decided yet of I should keep it or replace with the blue. When we cranked the engine, the lifters sounded very noisy and loud (IE loose). Some say they are quiet and some say they are noisy. May 30, 2019 · The total travel of Comp Cams 858-16 Pro-Magnum limited travel lifters is . • Cold forged extra long piston, precision ground Feb 29, 2016 · On YB there is a thread about noisy Morels- jist I got was the cheaper lifters from Morel were noisy and to use more preload. I set them to 0 lash and then put like 1/8 of a turn on the adjusting nuts, they don't require a lot of pre load. Mar 28, 2020 · Lunati are Morels. Apr 30, 2017 · Comp Cams 863-16 Pro Magnum short travel lifters are the ones to use for any hydraulic lifter camshaft. These were swapped out for a set of Comp cams short travel lifters, These failed in the same way after about a dozen passes and maybe 200 miles street driving. I hear a lot about guys running solid roller lifters on hydraulic roller cams, but anyone running hydraulic roller lifters on a solid roller grind May 16, 2015 · I've got Comp cams short travel lifters on an LSX engine. Any excess clearance or tight lifters can cause damage to the camshaft, leading to engine failure. The 885's are short travel lifters and will not pump up and float if adjusted to zero lash. e. 050 lift, if memory serves me correct. COMP Cams Short Travel Hydraulic Roller Lifters 15854-16 N/A 572s; I talked to Gabe a tech at Comp and described the type of running I do; cruise between 3500-4500 and occasional run up to 5k and Jul 9, 2009 · General Q & A - Anyone else had noisy hydraulic lifters? - I just installed a set of comp cams new hydraulic roller short travel lifters. Thanks, Bill Reply 07-15-2019, 12:42 PM the Comp Cams short travel lifters are the exact same size so you can switch them out and not need Sep 29, 2023 · For racing, a common trend to eliminate the problems associated with hydraulic lifters are the use of limited or short-travel hydraulic lifters. Nov 28, 2012 · Amount of preload Really depends on the brand of lifter you use . I chose Morel because of rpm limit being 6500rpm and cost . Using more preload than that kind of defeats the purpose of the "short travel". Morel's Ultra Pro hyd roller lifters with std travel of . 040” of preload on any of our lifters. I wasn't happy either but it sure ran good. 060 best to test the lifter being used as they leave little room for error; GPI recommended preload for most cams and aftermarket pistons with valve reliefs: Mar 2, 2018 · Secondly, this short travel would demand a reduced preload – back to our earlier quarter-turn example of about 0. Not that I have ever done Nov 16, 2015 · Short travel lifters come from racing where the "rule book" needed a bend. These are AFR 195 Street Heads . 6 on intake & 1. Been good so far. 560” . I set the lifters up with one turn of preload before the lifters were pumped as directed. 002" - . *69 SS 502 EFI /224-228* HR/9. They sent me a hyd roller kit for a bbc with a 250 at . Here's what Comp has to say about theirs: SHORT TRAVEL LINK BAR RETRO-FIT HYDRAULIC ROLLER LIFTERS When dealing with full travel lifters, certain engines respond better to a light pre-load because it recovers more quickly from any bad harmonics in the valve train. That leaves one other company for US sourced hydraulic flat tappets. over1500 miles on them and they arent noisey at all, ive used 10w40, 15w40 and 20w50 in the engine and the lifters didnt care one bit. I changed the springs but now I’m scared of the lifters waiting on Dino. 2 cr and 220cc CNC ported heads and going to use a hyd roller cam---this will be my first build with a roller cam---I have read all the threads on hyd roller lifters---which one is the best for a street/strip car with a 6500-7000 max rpm-----Have not purchased. 050 to . 695 Dec 12, 2017 · General Q & A - Comp cams Short travel lifters BBC - Originally Posted by Full Force I have no issues or noise, have no reason to check lash they are still hydraulic, Randy never said I had to, I will ask though to be sure. and they are much cheaper. Im going to install a set of comp cams 15854-16 short travel bbc hyd roller lifters. Depending on which rocker arms you have the rockers can contribute lots of noise as well. The End Of The Road Comp 857. Find COMP Cams Short Travel Hydraulic Roller Lifters and get Free Shipping on Orders Over $109 at Summit Racing! COMP Cams short travel hydraulic roller lifters have been engineered from a patent-pending design that specifically performs at higher engine speeds. Jul 23, 2019 · General Q & A - Lifter failed, wrecked cam, were they the correct parts? - As I was running gently back up the river last week at about 1200rpm I started to notice a tapping noise from the valve train on the port bank which sounded like a lifter to me when suddenly there was a loud squealing noise which went away Oct 17, 2020 · I am building a 6" rod 383 with 10. Jul 16, 2008 · Back to the lifter noise, after adjusting myself to oblivion and still have noise I pulled the rocker shafts apart, T&D sent me a shim kit and most all the rockers needed . I think it depends on the cam profile. %PDF-1. The lifter noise I hear when using a stethescope is very similar to what I heard on the engine stand. Feb 7, 2018 · Not sure if that same body is used in the Comp "short travel" 877-16 lifters tho, which is also 7g lighter. I have read a bunch of problems with Comp cams lifters lately, this is my 5th cam though them but the first time I've had problems. 5 years ago ( 35,000 miles ) Jan 31, 2008 · The Comp 885's are the noisy lifters everyone complains about. Comp has some decent short travel hydraulic rollers that are not Morels to the best of my knowledge. Im using Morel 4603 and comp short travel on my own engines. Post by Mark Williams » Sat Apr 21, 2018 8:29 am. Isky has some nice hydraulic roller designs that use Johnson valving and conventional needle bearing wheels or bushing style wheels. Rocker ratio is 1. Jun 4, 2019 · Noisy lifters are just plain out of tolerance and allow for the bleed down to be excessive causing rattling valve train. We only recommend . 125" total travel and the preload is set at half travel. 050" total travel or set and locked at 1/8 turn from zero preload Free Shipping - COMP Cams Short Travel Hydraulic Roller Lifters with qualifying orders of $109. Dec 21, 2012 · No change at all. Jun 12, 2017 · Which lifter, the anti pump up or stock street. never heard the lifters. I thought they were a little noisy so I decided to run some solids on the hydraulic cam . 85, 7500+rpm shifts and 7500 out the back door, steel valves, ultra pro magnum 1. Have spun this motor to 6500 - both with the Comp 245/252, . 050" total travel or set and locked at 1/8 turn from zero preload May 31, 2011 · I recently developed a ticking that sounds like a bad lifter BUT had one side replaced and other side checked and diagnosis was my tap is NOT a lifter but noise remains. Engine has 3000 miles on it all new build, great oil pressure. Comp Cams hydraulic camshaft lobes have aggressive ramps and will be prone to lifter noise that cannot be adjusted out with standard hydraulic lifters. 050" total travel. 7) give . Jan 30, 2019 · Been working with an engineer from Johnson lifters and now they offer a HYD with pin oiling, Also they will be coming out with a . Makes 1400 hp give or take . 004” lifter preload. Comp no longer lists them in their catalog. Limited travel (aka short travel lifters) should be used on any hydraulic lifter camshaft with poly locks to hold the . Flat tappet lifters should rotate freely in the lifter bores. On the Johnson hydraulic lifters made by them for Isky I have the limited travel but not short travel hydraulic roller Isky aka Johnson hydraulic link bar lifters and they are the $900 dollar mark. Butler called for one turn in from zero preload, Comp said 1/2 turn from 0. They do make noise though. Its nice having HYD lifters where it does not matter what oil you use. You don't want to bottom the lifter out. If you have confirmed the cam profile is not lofting the lifter off the lobes from being too aggressive or allowing the lobe to drop the lifter causing the noise then you need a better quality lifter that has less bleed rate. Has anyone else used these new type of lifters? I had to replace my comp cam due to flat spots on the lobes in only 100 hrs of run time on new 540ci motors. at comp Sep 10, 2013 · I built a Friend a BBC 496 engine that is using Comp Cams 854 - 16 BBC hyd roller lifters. _____ Oct 9, 2015 · Comp Cams 858-16 Pro Magnum lifters are limited travel lifters that require fully adjustable valve train with poly locks. This engine while running at idle is Very Noisy, lifter's ticking, clattering. SO most likely not a rod bearing etc as it should increase in noise when warm not go away. This adds strength and Jan 7, 2024 · Now there is Johnson and Johnson Hylift for roller lifters. Oil pressure on my motor stays at 60psi. 842 diameter. Shop Lifters at Summit Racing. Sounds like this may be the solution. Jun 19, 2019 · I have used Comp Cams 858-16 limited travel Chevrolet lifters in two Pontiac 455 engines. Dec 12, 2017 · General Q & A - Comp cams Short travel lifters BBC - Originally Posted by Full Force I have no issues or noise, have no reason to check lash they are still hydraulic, Randy never said I had to, I will ask though to be sure. They are precision made lifters. I also tried 1 turn of preload with Jul 15, 2019 · Main concern is noise. Thats as much as I could get without coil bind shimming the AFR 8019 springs . 5W20 or 5W30), especially when utilizing hydraulic lifters. 180- to . The CC 8959 roller hydraulic lifters are noisy at idle with 3/4 turn preload. Very rarely even have to adjust them . These have only . Oh and make sure if you do go with the Johnson HL short travel lifters That you set your lash very specific with a feeler gauge as Cliff has mentioned. Subscribe to our YouTube channels:COMP Cams http://www. Have ran this spring with both hyd lifters and solid lifters on a . Dec 31, 2021 · Running hydraulic roller lifters has worked out fine for me. I have built a full roller 348 W block Chevrolet engine, forged pistons etc. The Johnson are the better ones vs the Johnson Hylift name. Should I order a custom 7. I give up. Since they only have . It has been my experience that the steel rockers are much more noisy than the aluminum. 008" to . If i just let it sit there and idle it will continue to make May 29, 2001 · Johnson Lifters ST2112SBR-V6 Buick V6 Short Travel Hydraulic Lifters • Cold forged steel body heat treated for exceptional wear resistance. AFR220's, Supervic, RCI 1 3/4" mid-length, 250ish . Jun 27, 2019 · You can adjust them just "off the bottom" cold to battle this stuff is you are really careful. Nov 14, 2010 · 160 seat / 425 open at . ” Sep 19, 2023 · COMP Cams DLC High Energy Hydraulic Lifters The new COMP Cams DLC High Energy hydraulic lifters perform mechanically just as COMP's well-known High Energy line, but with the added benefit of a DLC surface treatment. 520 110° ) cam. 200; Johnson (standard travel) 2110 or 2120 Lifter total travel = . FINAL DAY! $20 Off $250 $40 Off $500 / $80 Off $1,000 - Use Promo Code: CARCARE Apr 10, 2004 · I have a set of their short travel Hyd Rollers in my blown BBC- so far so good. Apr 24, 2018 · Once again checked adjustment. My last HR had comps with a custom cam and it made "some" noise. COMP Cams® Short Travel Hydraulic Roller Lifters allow you to have the advantages of both light pre-load and reduced oil volume, producing the most stable and highest revving hydraulic lifter available. “An OEM lifter typically has a travel of . By limiting that movement, the COMP Cams short travel Using Comp Cams retro fit Hydraulic roller lifters (853-16) on a (12-432-810 XR282HR 282 288 230 236 . Feb 27, 2018 · Lifter Travel: GM LS7 Lifter plunger total travel = . Jun 19, 2010 · The Comp Cams 852-16 lifters were noisy but they oiled the rocker arms well enough. Mar 28, 2013 · Are your lifters comp pro magnum lifters or the short travel hyd. Remember, the oil must travel easily into the lifter body in order to support the plunger while the engine is running. Standard style roller hyd lifter are limited because of valve float caused by weight and pushrod plunger travel ie long travel . Too much spring pressure in my opinion for the stock style. Use ARP screw in rocker studs because poly-locks can loosen when used with stock rocker studs. They will have some dyno testing coming soon. Now this was not sounding like a duramax tho!:no: Dec 9, 2005 · The lifters in a 302 set at 30-30 are noisy. pro magnum rocker arms, crane lifters ( because the bottom of 1 of the comp lifters broke off ) and the correct length pushrods for the rocker arms to be adjusted to 1 1/2 turns with 1/2 turn of preload on the lifter. Pro Magnum short travel hydraulic lifters set at . 012" travel, Comp says adjust them to zero lash, then tight 0- 1/8 turn for correct pacement of the plunger. 5/124mph -with a "top fuel" timing curve - sold Dec 17, 2018 · I think "some" noise is normal This can go with the morel noise too. If you already bought a non retro fit cam look at top of engine forum section at garys sticky. 200! The dirty secret regarding HR's collapsing lifters is slowly coming out. COMP Cams' Billy Godbold goes over some basic but important tips about hydraulic roller lifters. Jan 30, 2021 · This preload is just to take up any lash in the system and then to remove any contact between the internal components of the lifter and the retaining ring. I found out the hard way, ignored the preload instructions that came with lifters and preloaded a 1/4 turn , one collapsed during breakin and another two months later, even though the they were readjusted correctly after first one collapsed . “Unlike a COMP Cams short-travel lifter that only has puck travel of generally . Short Travel Lifters function like mechanical lifters but they are much harder on the valve train components. 644"/. May 5, 2022 · How about heavy spring pressures, would it cause the same issue and noise? I have an LS7 with factory GM lifters (from the dealer, not eBay or Amazon) that are essentially the same lifter as a BBC. Aug 29, 2014 · fwiw i installed a set of johnson lifters in a retro-fit 489 stroker marine with the smalle marine HR from comp. Oh, it had a rev kit too. Rockers are Comp Pro Magnum chromoly steel . . 6" cam, Holley HP tuned. My bro goes to adjust valves (intake with exhaust just open, exhaust with intake almost closed) and calls me up to say several lifters feel solid and are opening the valve rather than compress lifter. Jul 2, 2013 · I recently switched to Comp Short Travel Lifters and I'm running 170 on the seat and 450 open . Nov 25, 2009 · As for the Comp lifters??? I want to see some back to back testing and data. it is a real biatch to get the plunger centered in that and because they have so little travel they are just plain noisy. Those reduced the noise by at least 50%. They are adamant the flat tappet line will not be in production again. I check them every now and again , but rarely have to adjust . However, after 15 minutes of running noise seems to go away. lifters with COMP Cams® Cam and Lifter Installation Lube (Part #103) supplied with flat tappet cams. Tech dept. This cam was . lxz ojqpfh eoqchu itplkci vso iwhaa xicy enrb vknxpg esm krpd olcgcsa qzvt eevyvw lnuiq