H/C/I swap complete
#1
Staging Lane
Thread Starter
H/C/I swap complete
Hey guys, I’m a big time lurker on here and don’t post much, but I figure I’d add to the statistics of H/C/I results and maybe share some advice. I did the PRC 227 heads, 235/240 .629/.615 111 LSA Texas Speed tsunami cam, FAST 92. It made 451/404. Day and night difference. I thought the numbers might be a lil higher, but I kept the head chambers milled at 62 cc which kept the comp ratio conservative at 10.8:1. So overall not bad for a 130k mile car.
Last edited by Holy Diver; 06-16-2019 at 08:53 PM.
#5
TECH Veteran
Car should run low 11s on motor. Good power man.
#6
Staging Lane
Thread Starter
Thanks man. We only have 1/8 mile tracks around here, but I definitely wanna get a few passes under my belt before I start to think about more power lol. The rear end needs an upgrade desperately... that TA cover might hold it together on the street and that’s about it
#7
TECH Veteran
Thanks man. We only have 1/8 mile tracks around here, but I definitely wanna get a few passes under my belt before I start to think about more power lol. The rear end needs an upgrade desperately... that TA cover might hold it together on the street and that’s about it
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#9
TECH Senior Member
#10
Staging Lane
Thread Starter
It’s not bad at all. All in the tune I guess. Only trouble is trying to cruise in 6th gear at like 40 mph it bucks a little bit, but that’s expected.
#11
Launching!
iTrader: (6)
Nice build. I wish I could afford the PRC 227s . I'm doing something similar but with the inferior 225 PRCs and a smaller cam/SD tune aiming for compression in the 11s so will probably mill to 60cc or so. What kind of tires are you running and how is traction with the 4.10s?
#12
Staging Lane
Thread Starter
Nice build. I wish I could afford the PRC 227s . I'm doing something similar but with the inferior 225 PRCs and a smaller cam/SD tune aiming for compression in the 11s so will probably mill to 60cc or so. What kind of tires are you running and how is traction with the 4.10s?
#13
Launching!
iTrader: (6)
Right now BFG G-force sport comp 2. Traction sucks til about 3rd gear lol. In hindsight I would’ve gone with the PRC 225 heads and saved some money. I’m tempted now to build a stroker LS2 and put the 227 heads on that. First tho i want a 150 shot, M9 rear end, and some suspension goodies to enjoy the current setup before another engine build.
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Holy Diver (06-22-2019)
#15
TECH Veteran
Run some 4.30 gears with that cam. It'll reduce somw of the bucking. Also are you running a MAF or speed density?
#16
Staging Lane
Thread Starter
#17
TECH Veteran
#19
Staging Lane
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#20
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Funny. Went I went from 3.43 to 4.11 I was underwhelmed. Went to 4.30 felt like a huge kick. The math does not make sense but that is how the butt dyno felt