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RWHP after mods?

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Old Feb 16, 2003 | 09:57 PM
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86IROC-SS's Avatar
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RWHP after mods?

Thanks in advance for any replies! Motor is 91 vette L98, gm al. heads. Car currently has TPIS big mouth lower manifold, CAI, Edelbrock TES headers, FLP hi flo cat, Ravin muffler, flowmaster pipes. Ive got accel superram going on, with LPE 219 cam. Specs are 5.60/5.60 112 LSA with 1.6 RR. Im of course going with 1.6 rr's as well, new lifters, new springs, LS1 28 lb injectors and a new prom from PCM for less. On the current setup i dynoed 236 rwhp and 309 rwtq. Any estimates for numbers after intake/cam/etc? Thanks again guys.
Matt
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Old Feb 16, 2003 | 10:19 PM
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From: Ohio, USA
Car: 2015 Camaro Z/28 & 2013 Super Bee
Engine: LS7 and 392 HEMI
Depending on how well the heads flow, 300-325, but a TON of tq. And I don't remember my LPE 219 having 5.6" lift, that's pretty big
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Old Feb 17, 2003 | 12:21 AM
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any suggestions for valvetrain components. brands for Roller rockers, hydraulic lifters, timing chain set, springs - #?. And yes, money is a factor.
Thanks :hail:
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Old Feb 17, 2003 | 01:19 AM
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From: Ohio, USA
Car: 2015 Camaro Z/28 & 2013 Super Bee
Engine: LS7 and 392 HEMI
You might want to check over on corvetteforum.com. They have several cars with this combo. I have the AFR springs, unidentified rr's, and stock lifters, so I'm of no help.
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Old Feb 17, 2003 | 04:54 PM
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thanks buckeye. anyone else with a similar setup?
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Old Feb 18, 2003 | 04:55 PM
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From: State College, PA
Car: '89 Formula
Engine: 383 Megasquirt
Transmission: T-56
Axle/Gears: 7.625
Using the 219 cam with the .560" lift at the valve with 1.6 RR's, I would STRONGLY suggest installing the AFR Hydra Rev kit. It will help stop valve float and make the valve train quieter. New, the kit is just over $200, but shop around and you can find it used for a lot less. Also make sure your vavle springs are strong enough for the .560" valve lift.




tom
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Old Feb 19, 2003 | 12:07 AM
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what exactly is the hydra rev kit? what does it do? Am i running the risk of false knock without it?
Thanks
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Old Feb 19, 2003 | 02:51 PM
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From: State College, PA
Car: '89 Formula
Engine: 383 Megasquirt
Transmission: T-56
Axle/Gears: 7.625
Here's a more detailed picture of the Hydra Rev.


It's purpose is to help offset the weight of heavy hydraulic roller lifters with out putting excess pressure on the hydraulic plunger of the lifter. Hydraulic roller lifters are heavy because there is so much too them. The springs that come with the kit put pressure on the outside body of the lifter. I wouldn't say that false knock would be a problem with out the Hydra Rev, but valve float would be more likely. Try doing a search on this board and you may come up with more information.
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Old Feb 19, 2003 | 10:07 PM
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fun Pain's Avatar
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From: Crestline,OH
Car: 1987 Formula 350
Engine: 6.0 boost and smak
Transmission: 4l80e
Axle/Gears: 9bolt 3.27
what heads are those in the pic with the hydra?
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Old Feb 19, 2003 | 10:29 PM
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From: State College, PA
Car: '89 Formula
Engine: 383 Megasquirt
Transmission: T-56
Axle/Gears: 7.625
Those are AFR 190's. Why 'ya asking?

86IROC-SS,

I would recommend the Comp Cam Pro Magnum rockers also. I have the Crane Race Gold rockers and I'm not totally satisfied with them.
http://www.compcams.com/information/.../ProMagnum.asp



tom

Last edited by Colt; Feb 19, 2003 at 10:36 PM.
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