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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 Vortec 4.2L I-6 Engine and Drivetrain > Air Induction

Air Induction Performance Air Intake/Air Induction Modifications

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  #11  
Old 02-27-2010, 04:26 PM
TieRod TieRod is offline
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Originally Posted by jjbllngr View Post
Cheapest and fastest way to get more power is Nitrous!! Just go get a 500 shot and you'll have a EXPLOSION!!
I fixed it for you!!!


I've been really temped to do a 125 shot on mine!

BTW can anyone tell me why I can't turbo/supercharge 02'-05'?
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  #12  
Old 02-27-2010, 04:41 PM
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tbguy05 tbguy05 is offline
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Quote:
Originally Posted by TieRod View Post
I fixed it for you!!!


I've been really temped to do a 125 shot on mine!

BTW can anyone tell me why I can't turbo/supercharge 02'-05'?
Long story short: PCM on the 02-05 cant handle the boost in pressure. There are several posts on this. Some get into great detail about the diff. in the early pcm's and the 06-08 pcm's.
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  #13  
Old 02-28-2010, 12:26 PM
Blazin_Trails Blazin_Trails is offline
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Originally Posted by tbguy05 View Post
Long story short: PCM on the 02-05 cant handle the boost in pressure. There are several posts on this. Some get into great detail about the diff. in the early pcm's and the 06-08 pcm's.
What about a stand alone?
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  #14  
Old 02-28-2010, 03:18 PM
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wardak33 wardak33 is offline
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Originally Posted by Blazin_Trails View Post
What about a stand alone?
I also wondered that as well. Could it be possible if we were to use something like an SAFC?
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  #15  
Old 02-28-2010, 07:49 PM
ScarabEpic22 ScarabEpic22 is offline
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Quote:
Originally Posted by Blazin_Trails View Post
What about a stand alone?
Quote:
Originally Posted by wardak33 View Post
I also wondered that as well. Could it be possible if we were to use something like an SAFC?
If you wanted to put a voltage clamp on the MAP sensor (get a 2 Bar from a Cobalt SS first) so the PCM only ever sees 1 Bar max then run a standalone for boost conditions it *might* work.

I say 02-05s cannot do it because from the factory they cannot. I like everything to look as factory as possible, just with some more power, so unless there's not another way (Ill be looking into one come mid-May when I have access to the 02 again) I wont run a standalone. Just an FYI, the PCM will think its running at the 1 Bar MAP voltage and then whatever RPM cell, so that spark value will be carried over into boost. As for the VE, this is where it gets interesting. You'd have to spend a bunch of time on the dyno with a wideband getting into boost often and trying to use a fuel pressure riser to get the fuel delivery you need. Theres simply no way to have the P10 PCM control fuel delivery at load values greater than 100% (which I assume boost would cause this, but cannot verify).

Megasquirt should have something ready to go once they finish with all their new improvements, efi-diy knows way more about MS than I do.
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  #16  
Old 03-03-2010, 03:49 PM
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JBMallory JBMallory is offline
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Originally Posted by Toadz View Post
We could always do without the extra weight though. With the right mods we'd have a better power to weight ratio along with better weight distribution.
I heard TB's have EXCELLENT weight distribution, especially SS's at the track
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  #17  
Old 03-03-2010, 04:44 PM
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BUC NASTY BUC NASTY is offline
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if you want additional hp get a yank torque converter.
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  #18  
Old 03-03-2010, 05:02 PM
DucatiSS DucatiSS is offline
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Quote:
Originally Posted by BUC NASTY View Post
if you want additional hp get a yank torque converter.
Could you please clarify and substantiate how a [B]torque converter[/B] can [U][I]increase[/I][/U] HP.
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  #19  
Old 03-03-2010, 05:13 PM
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T-Mac T-Mac is offline
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Originally Posted by DucatiSS View Post
Could you please clarify and substantiate how a [B]torque converter[/B] can increase HP.
I'm all ears for this one...

One thing I would do if your 2wd is change the rear end gears. No more horsepower but [B]much[/B] better accelleration.
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  #20  
Old 03-04-2010, 08:26 PM
bulldawg bulldawg is offline
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performance

Is there a superchips programmer of any kind for the 4.2 L engine
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