L92 402 Stroker
This is a discussion on L92 402 Stroker within the Internal Engine forums, part of the LSx Technical Help Section category; OK, here's what I have: forged 402 LS2 G5X2 comp custom grind 232/240 .595/.608 112lsa, L92/L76, Vararam. My numbers are ...
08-10-2009, 06:12 PM #1
L92 402 Stroker
OK, here's what I have: forged 402 LS2 G5X2 comp custom grind 232/240 .595/.608 112lsa, L92/L76, Vararam. My numbers are 431/400 M6 on a Mustang Dyno. My a/f ratio at WOT is 12.8 and 28.5* timing. Peak torque at 4900 and still climbing at 6500 for RWHP. Is this low? It seems to flatten on the top. Is this to lean for a street strip car and what timing has anyone been able to get? I am headed back to my tuner to add some fuel and some timing if it will go. Please help I am open to many opinion but want good ones. For what I have It should be a bit more i think. I see people with less around there. Please Help!!!
08-10-2009, 07:31 PM #2
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Sounds about right to me considering the fairly small cam and the Mustang dyno.
08-11-2009, 01:44 AM #3
I say take it to the track and get some 1/4 mile times. Mustang Dyno's are not EgoJets. They read low. Your numbers seem low to me, but Dyno numbers dont mean a dang thing other then a good tuning device.
Still, take it to the track and get some MPH readings.
08-11-2009, 03:58 AM #4
I have 7.78 1.74 60ft 92.7mph 1/8th mile
08-14-2009, 08:38 AM #5
Edit... Ive gone a quickest of 8.13 at 92.43 MPH. Would be interesting to see what your car would do in the 1/4.
Last edited by Hi-Po; 08-14-2009 at 08:52 AM.370 CI - Twin 6766 Turbo - Jakes stage 5 4L80E - MWC 9" - Holley Dominator
Build in progress...
08-14-2009, 10:20 AM #6
Unfortunately we don't have a 1/4 mile track close. I am planning on going to Joliet, Ill to race in one of their classes towards the end of September so we will see then.
08-14-2009, 10:33 AM #7
I have read over and over that those L92's like a completely different camshaft that cathedral port LS heads. If you change anything, I bet it would be the cam. There are a few people at the other site that could really, really help you out with a custom cam for a L92 headed 402. PM me if you dont know thier names, or the site, for a few humdred dollars you might just pick up what your wanting.
08-14-2009, 12:43 PM #8
yeah its a custom grind from comp i bought it through Texas Speed and and they said a split of 8 between intake and exhaust is what the L92's like. I am still waiting for the re-tune since i added the vararam.
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