Camed LS4 with mods=110-111mph. Goal 115mph. Suggestions?
09-19-2011, 02:41 PM
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Camed LS4 with mods=110-111mph. Goal 115mph. Suggestions? yeah....yeah... yeah... Get a RWD car.
This car is my daily driver, and hooks pretty good without much torque steer. It's a blast to drive.
Mods.
5.3L engine 4.8L flat tops
EPS cam 218/222 .595/.600 113 LSA +2 Adv.
10.25 compression
Stock LS6 heads with back cut valves and slight mill
Ported LS6 intake manifold
1 3/4"x3" headers into single 3" exhaust
TR55 plugs
CAI
I don't want to gut my car or use nitrious just yet. I want to hit 115mph in the 1/4. Best ET is 12.71@109.9mph. Best MPH is 111. I shift at 6300-6500rpm.
Race weight is 3865lbs.
Should I get my heads ported from AI? Mill for more compression? Exhaust cutout?
I really like this cam. It idles at 750rpm with 14"-15"hg in Park. In drive. I'm around 13"hg.
I have been really racking my brain trying to come up with more power. Thinking I need another 50-60hp at the wheels. So N20 might be my best option
This car is my daily driver, and hooks pretty good without much torque steer. It's a blast to drive.
Mods.
5.3L engine 4.8L flat tops
EPS cam 218/222 .595/.600 113 LSA +2 Adv.
10.25 compression
Stock LS6 heads with back cut valves and slight mill
Ported LS6 intake manifold
1 3/4"x3" headers into single 3" exhaust
TR55 plugs
CAI
I don't want to gut my car or use nitrious just yet. I want to hit 115mph in the 1/4. Best ET is 12.71@109.9mph. Best MPH is 111. I shift at 6300-6500rpm.
Race weight is 3865lbs.
Should I get my heads ported from AI? Mill for more compression? Exhaust cutout?
I really like this cam. It idles at 750rpm with 14"-15"hg in Park. In drive. I'm around 13"hg.
I have been really racking my brain trying to come up with more power. Thinking I need another 50-60hp at the wheels. So N20 might be my best option
Last edited by DavidGXP; 09-19-2011 at 09:55 PM.
09-20-2011, 05:51 AM
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CNC 243 are no joke and are affordable. I am leaning toward AI.
09-20-2011, 06:26 AM
#6
yeah I would go with some head work for sure, theres alot of HP potential over stock ls6 heads to be had with something better. you could get some cnc truck heads to increase flow and compression, alot of ls1 guys use them. I think its the 317 cast number
a stall will definetly get you across the 1/4 quicker than you are now. doubt you would lose mph.
a stall will definetly get you across the 1/4 quicker than you are now. doubt you would lose mph.
