TREX cam for stock heads

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Aug 4, 2004 | 05:16 PM

#21

SMOKIN01TA

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From: McComb, MS

Quote:

Originally Posted by josep shortt

[i have a 2002 ws6 and i have bought a trex cam with comp dual springs and am thinking of buying either afr heads or going to bowling green and having a set of 5.3 heads ported and having the pistons fly cut,how much more power will this give me than just using the stock heads?

some of us have talked about this, we are hoping that some good head will give another 50rwhp +or- a few. i think with good heads,90mm intake and tb and elec. water pump with some final tuning i could be seeing close to 500rwhp or just shy of it.

Aug 4, 2004 | 05:20 PM

#22

SMOKIN01TA

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From: McComb, MS

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Originally Posted by 35th SS

Smokin how many pounds inj. you runnin with that bad boy?have 28s right now.wondering it would be enough.thanks.

im still running the 28's and i still have plenty of fuel on top end. i do have auto tap but we went with the fuel curves on the dyno graph and at 7200 i was able to have 12.8 a/f ratio, now im at like 13.3 so no problems yet. best dyno with the 12bolt and 4.56's was mid 430's should go about 450 on a stock rear.
also im running a stock fuel pump, so if i need a lil more out of the 28's ill put in a 255lph pump

Aug 5, 2004 | 01:59 AM

#23

35th SS

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From: Hawaii track track.

thanks brah! for the info.getting tuned next week tues.have the walbro 255 in there w/the 28s#inj. wonder if my gearing would be enough.if not will switch to a 4.57 on the 9in.thanks again.will spray this thing down the road.

Aug 5, 2004 | 04:09 AM

#24

Nickn20

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From: Bay Area, CA

Quote:

Originally Posted by SMOKIN01TA

just some advice, your injectors are maxed most likely, you won't be able to control fuel very well, and 13.3 on a dynojet is too lean for the street/strip. IMHO. and you need EFIlive or ease scanner to monitor IPW and DC. I would say this hurting you slightly performance wise, but great for dyno numbers.

Aug 5, 2004 | 09:49 AM

#25

35th SS

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From: Hawaii track track.

great info. nick.will see how it looks on the dynojet next week.thanks.

Aug 5, 2004 | 09:06 PM

#26

SMOKIN01TA

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From: McComb, MS

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Originally Posted by 35th SS

you could drive it on 3.89 gears but 4.10 or higher would be much nicer and perform better. with the 255lph pump you will be fine with the 28's for now.

Aug 5, 2004 | 09:13 PM

#27

SMOKIN01TA

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From: McComb, MS

Quote:

Originally Posted by Nickn20

injectors are not maxed out. they are getting close though,

they definaly are not hurting performance. jason put 30's in his car over his 26's and didnt make a diff with the 255 pump, just gives more room for expansion when we get to heads. ill change my injectors when i get a 90mm intake. i have efi live and auto tap, theres no problem yet. as far as the 13.3 a/f ratio. that is where i wanted it. all of us are running mid 13's a/f down here with this setup and others. in a few years i have yet to see a problem with any of them yet. that is also where it performs best. i had a friend that ran 13.8 for 2years on his street/strip car with no problems, and mine sees very little street use when its hot due to no a/c in the car

Aug 6, 2004 | 01:19 AM

#28

35th SS

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From: Hawaii track track.

Quote:

Originally Posted by SMOKIN01TA

you could drive it on 3.89 gears but 4.10 or higher would be much nicer and perform better. with the 255lph pump you will be fine with the 28's for now.

thanks Smokin might even get dyno tuned this fri. if I decide to drive the car to work and bring it after.no complains it drives fine on the streets with the 3.89. I mean at the track.wil do some few passes fri. night if it gets tuned that day.same here actually both cars are not daily drivers.sits on the garage on weekdays and sees the track every weekend.taking turns.