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Just got the engine bolted up and in last Friday night, 4-500 miles before tuning. Speed density tune due to complete pile-o-sheet Vararam and messing with MAF giving me a unresolvable cutout at 5.5-6k rpms. After 9 hours of tuning, it left the tuner running great but now is giving me a off idle stumble thats almost undriveable. Anyways, Im in the market for a Volant and its going back to a MAF tune. Car pulls crazy hard for stock rear gears, 1st and 2nd gear are useless on stock tires and really wants to keep going past 7k. Got wheels/tires/coil overs coming soon! Tuner admits his Dynojet is stingy
Mods:
Aluminum LS2 block .015" over
4" Callies Compstar Crank/Rods
JE Pistons - 11.2:1 CR
Kooks 1-7/8 LT's w/Corsa Sport X-Pipe
AI 232cc Ported 243's - Stock valve size
Tooleys Platinums with Stroker Cam (239/254 .624"/.595" 114+3)
Fast 102
LS7 Inj (75% Duty Cycle FWIW)
Final pull of the night was 478/470, the AF: was a little wonky in the below pull but its the only pic i have handy.
Last edited by 98camarozzz; 04-01-2016 at 07:38 PM.
If that A/F is correct it will fry the piston rings (they will lose tension) as the EGT becomes out of control at 15:1 region.
I'm assuming E85 also since it still runs after that pass.
With all due respect the tuner or driver should have gotten out of it right at 3200rpm, who was watching the wideband screen during the run? It is very brief which isn't as big of a problem, but it should have been fixed for sure.
If that A/F is correct it will fry the piston rings (they will lose tension) as the EGT becomes out of control at 15:1 region.
I'm assuming E85 also since it still runs after that pass.
With all due respect the tuner or driver should have gotten out of it right at 3200rpm, who was watching the wideband screen during the run? It is very brief which isn't as big of a problem, but it should have been fixed for sure.
It is fixed, last pull was flat 13 o across board. running 91 octane
Originally Posted by josh4ku
Why didn't you go higher CR ?
I wanted to bump a hair higher than stock and have no worries on pump gas. I wish i woulda milled heads more (AI milled to 62cc) but it is what it is i suppose. I have a Plate kit, just waiting on a purge and progressive controller
It is fixed, last pull was flat 13 o across board. running 91 octane
I wanted to bump a hair higher than stock and have no worries on pump gas. I wish i woulda milled heads more (AI milled to 62cc) but it is what it is i suppose. I have a Plate kit, just waiting on a purge and progressive controller
13:1 seems lean still on that octane....how much timing is in it?
04-01-2016, 07:32 PM
New stroker build results, how'd I do?? 
