LQ4 SWAP question
#1
Teching In
Thread Starter
LQ4 SWAP question
OK. just did an lq4 swap in my 02 trans am. rebuilt the lq4 short block. reused the old ls1 heads and had them milled 20thou to raise cr. installed the Z06 cam the specs;
Dur. @ 0.050 I/E: 204 / 218
Camshaft Type: Hydraulic Roller
Lobe Seperation Angle: 117.5
Rocker Arm Ratio: 1.7
Type: Hydraulic Roller
Adv. Duration I / E: 270 / 282
Basic RPM Range: 2200 - 6300
Valve Lift (in.): .551 / .547
i replaced the valve springs and pushrods for this as well. also it has the ls6 intake and the throttle body is ported. also 1 3/4''long tubes and 3'' y-pipe and it's tuned by carolina auto masters.
this combination only made 362hp/367 torque. so does anyone have any idea where i went wrong? because something just seems odd about this to me.
Dur. @ 0.050 I/E: 204 / 218
Camshaft Type: Hydraulic Roller
Lobe Seperation Angle: 117.5
Rocker Arm Ratio: 1.7
Type: Hydraulic Roller
Adv. Duration I / E: 270 / 282
Basic RPM Range: 2200 - 6300
Valve Lift (in.): .551 / .547
i replaced the valve springs and pushrods for this as well. also it has the ls6 intake and the throttle body is ported. also 1 3/4''long tubes and 3'' y-pipe and it's tuned by carolina auto masters.
this combination only made 362hp/367 torque. so does anyone have any idea where i went wrong? because something just seems odd about this to me.
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#8
Yea.. idk much but im gonna go with the stock ls1 heads and the stock z06 cam is holding you back big time..
with a wild cam you should make at least 420ish whp and with a good set of heads closer to 475ish whp and maybe more im not sure
but deff heads and cam is where you went wrong.
with a wild cam you should make at least 420ish whp and with a good set of heads closer to 475ish whp and maybe more im not sure
but deff heads and cam is where you went wrong.
#9
Teching In
Thread Starter
Yea.. idk much but im gonna go with the stock ls1 heads and the stock z06 cam is holding you back big time..
with a wild cam you should make at least 420ish whp and with a good set of heads closer to 475ish whp and maybe more im not sure
but deff heads and cam is where you went wrong.
with a wild cam you should make at least 420ish whp and with a good set of heads closer to 475ish whp and maybe more im not sure
but deff heads and cam is where you went wrong.
#11
TECH Senior Member
iTrader: (8)
The problem was having Creech tune your car. He is a notoriously bad tuner. I am kinda surprised he is still in business... You have a couple of good options there in the Triangle....
EDIT. Just saw you are from Charleston and wondering how you ended up getting the car tuned in Durham??
EDIT. Just saw you are from Charleston and wondering how you ended up getting the car tuned in Durham??
#12
Teching In
Thread Starter
The problem was having Creech tune your car. He is a notoriously bad tuner. I am kinda surprised he is still in business... You have a couple of good options there in the Triangle....
EDIT. Just saw you are from Charleston and wondering how you ended up getting the car tuned in Durham??
EDIT. Just saw you are from Charleston and wondering how you ended up getting the car tuned in Durham??
#13
TECH Senior Member
iTrader: (8)
Google him and read this>>> https://ls1tech.com/forums/pcm-diagn...onal-tune.html I also know two guys who got lousy tunes from him the worst case being a GTO that ran lean and trashed the motor,,,