wanna be fast as hell

[renaldo99]

heyy i got a 05 chevy tahoe 5.3l long tube headers (no cats), corsa sport, pcm tune by nelson perf., cai and a rebuild trans with a shift kit and all perf. mods, but im still slow off the hole i wanna be faster then a tbss or close to it what should i do next? vortech supercharger or cam/heads or something diff. let me kno
thanks

[Rollin Thunder]

cam/heads, then get a sc. Do the SC last as it will just complement all your other mods.

I have never heard of nelson, but know that black bear has the best PCM tuning around.

[renaldo99]

well nelson perf. sent me a tuned pcm and they Optimize the air/fuel ratio, Increase timing throughout the RPM range and increase throttle response, modify the GM driving shift patterns, remove all or a percentage of TM and remove the speed limiter, adjust for tire size and gear ratio, and remove any emissions devices for me so idk is that good?

[Rollin Thunder]

well nelson perf. sent me a tuned pcm and they Optimize the air/fuel ratio, Increase timing throughout the RPM range and increase throttle response, modify the GM driving shift patterns, remove all or a percentage of TM and remove the speed limiter, adjust for tire size and gear ratio, and remove any emissions devices for me so idk is that good?

Black bear does that too but goes one better. they send you the tuning cord. You record it on your laptop (super easy actually), hook it up, drive around, and then send the info to Justin (owner and tuner) and he sends you out a custom PCM.

[JKmotorsports]

If you want to get out of the hole quicker, lower gears and a screw or roots style s/c will get you there.

[OKLAGMCRUISER]

If you want to get out of the hole quicker, lower gears and a screw or roots style s/c will get you there.


:hands:

[blueflamed03]

and converter.

Look at a Yank 2600 and put 4.10's in it. That's get ya up and going.

[Mr.Martin]

I have everything you have listed but I have 4:10 gear and LSD. It helps but I have not been to the track since then to see the gain but I doubt I near the 14's yet and mine puts down 320rwhp.

---------- Post added at 08:08 PM ---------- Previous post was at 08:06 PM ----------

Oh yea I forgot... Swap in a LQ9! I found one from an 04 eskerade for 900 I need to go pick up. That's a 50hp gain right there.

[renaldo99]

if i put 4:10's will i be able to go over 100mph? do i have to change the front gears also if its 4wd? and if i put the s/c and new gears will i be set. also what brand of gears and s/c should i get?
thanks

[JKmotorsports]

if i put 4:10's will i be able to go over 100mph? do i have to change the front gears also if its 4wd? and if i put the s/c and new gears will i be set. also what brand of gears and s/c should i get?
thanks



You'll still be able to attain over 100 with 4.10s, but your rpms will be higher. You'll also have to change the transfer case gears if you swap your rear diff gear ratio.
I went with a Magnacharger on mine. Flat torque curve that starts way low. Best part is that it's a complete kit; injectors, fuel rails, intake, intercooler, fuel and intercooler pumps, hardware, everything. On a stock 5.3 with a 3.4 pulley, it adds about 120hp/120tq. @ about 5 lbs boost. I'm running a smaller pulley and getting 10 lbs boost. With mods, the power is even better.

[renaldo99]

do i gotta change the front gears to? where did u buy the megnacharger from and how much? also is the vortech sc good?

[CincinnatiZ]

Vortec makes an okay supercharger - I have a T-trim on my camaro. There are 2 kinds of superchargers. One is called a "roots" style and the other is "centrifugal". The roots style blower sits on top of the motor and a centrifugal is bolted to the accessories bracket and then connected to your intake threw tubing. If I were you I would do a roots style (Like JK, Chistoso, and Jenna have)

The problem with the Vortec's are they are not self contained. That means it depends on oil from the truck and that equals problems. You have to drill your oil pan, have a bung welded on, run feed and return lines, and PRAY it never gets loose, melts, or leaks. AND if you ever blow your engine apart, you are going to take the supercharger with it.

Bottom line is no, I would say stay away from vortec... they sound so sick when there running but its not worth it.

[blueflamed03]

Yes, you will need to change front gears as well.

[Max]

lower gears, smaller tires, 3000rpm stall, remove more torque management. I hope you don't plan on towing, otherwise drop the stall down a bit.

[T-Giv]

well nelson perf. sent me a tuned pcm and they Optimize the air/fuel ratio, Increase timing throughout the RPM range and increase throttle response, modify the GM driving shift patterns, remove all or a percentage of TM and remove the speed limiter, adjust for tire size and gear ratio, and remove any emissions devices for me so idk is that good?

I'm considering getting a mail-in tune done from them right now I'm so glad I stumbled upon this! How good was the tune you got from them? What kind of gains did you see from it?

[deuceizloose]

I Got a Finishline tranny coming(still in the building stage) a YANK Truck Thruster 3000, 4.10 gears and a Nelson re-tune after putting everything in. I have a 6.0 and with just the original tune from Nelson's a CAI and a shift kit, I was noticeablly quicker out the gate. Maybe the difference is I got 6.0 vs your 5.3????