low gain's after headers
Originally Posted by 98RedBird
the 01-02's actually did come with more freely flowing exhaust system than did the pre 01's. this is why the 98-00 guys tend to see a *slightly* higher gain in hp.
I'm suprised at how many people think the better flowing exhaust manifolds only came on the 01 and 02's. For the record, the 00's have the same, better flowing manifolds as the 01-02's. The only difference is they have egr and the 01-02's don't.
Excerpt from exhaust sticky at the top of the page:
- If you have an 00-02 car do not bother with shorties. They received a better-designed manifold and flow quite well actually for what they are. You will see minimal gain if any by switching to shorties. If you have a 98-99 car you'll gain some rwhp from shorties but it wont be much either.-
Last edited by Redneck Z; Jan 29, 2006 at 02:58 AM.
Originally Posted by Redneck Z
I'm suprised at how many people think the better flowing exhaust manifolds only came on the 01 and 02's. For the record, the 00's have the same, better flowing manifolds as the 01-02's. The only difference is they have egr and the 01-02's don't.
Excerpt from exhaust sticky at the top of the page:
- If you have an 00-02 car do not bother with shorties. They received a better-designed manifold and flow quite well actually for what they are. You will see minimal gain if any by switching to shorties. If you have a 98-99 car you'll gain some rwhp from shorties but it wont be much either.-
Excerpt from exhaust sticky at the top of the page:
- If you have an 00-02 car do not bother with shorties. They received a better-designed manifold and flow quite well actually for what they are. You will see minimal gain if any by switching to shorties. If you have a 98-99 car you'll gain some rwhp from shorties but it wont be much either.-
Not sure if they actually flow better, but the 98-99 manifolds were cast steel, where as the 00-02 manifolds were cast iron. They are most likely the same casting though. Regardless, the 01-02 cars have slightly better heads, LS6 intake, factory LS6 clutch, etc. They generally will produce the most rwhp with bolt ons compared to other cars. Headers are not a waste on any LS1!
Originally Posted by BackinBlack02SS
Not sure if they actually flow better, but the 98-99 manifolds were cast steel, where as the 00-02 manifolds were cast iron. They are most likely the same casting though. Regardless, the 01-02 cars have slightly better heads, LS6 intake, factory LS6 clutch, etc. They generally will produce the most rwhp with bolt ons compared to other cars. Headers are not a waste on any LS1!
The early cars also had a SLIGHTLY more aggressive camshaft. The later cars had the 6.0l truck camshaft. It provided a little less valve overlap (more LSA), which left room for the deletion of the EGR system
The benifits of the intake manifold/exhaust manifolds/heads simply outweighed the smaller camshaft. I thought i had put it in my post but with hypertech i had 342/352 sorry guys.
If you want to think I'm an idiot now because I had hypertech go ahead. I have efi live now and I'm finishing up my SD tune this weekend. I live in wilson and I'm currently in charlotte going to school. As of November 05 my car put down 365HP and 385TQ...here is the dyno sheet.
Also, how is 8-15HP and upwards of 20+TQ gains for buying headers pricy for the power when you can spend 500 or more bucks on a tuning program and not know WTF you are doing and get lower numbers....OR IF YOU DO KNOW WHAT YOU ARE DOING gain what? typically around 15HP and 20TQ???
I saw headers as one of the first and best mods to the ls1, versus buying a TB or intake mani.
If you want my previous dyno runs I'll email them to you, as they are far above the 100KB upload limit here, if you want more info call Caleb and ask him about the Red trans am
He's at FASTLANE motorsports http://www.fastlanemotorsports.us/UHome.asp
Here is the link to a forum that they are on http://www.horsepowerjunkies.com/for...splay.php?f=43
If you want to think I'm an idiot now because I had hypertech go ahead. I have efi live now and I'm finishing up my SD tune this weekend. I live in wilson and I'm currently in charlotte going to school. As of November 05 my car put down 365HP and 385TQ...here is the dyno sheet.
Also, how is 8-15HP and upwards of 20+TQ gains for buying headers pricy for the power when you can spend 500 or more bucks on a tuning program and not know WTF you are doing and get lower numbers....OR IF YOU DO KNOW WHAT YOU ARE DOING gain what? typically around 15HP and 20TQ???
I saw headers as one of the first and best mods to the ls1, versus buying a TB or intake mani.
If you want my previous dyno runs I'll email them to you, as they are far above the 100KB upload limit here, if you want more info call Caleb and ask him about the Red trans am
He's at FASTLANE motorsports http://www.fastlanemotorsports.us/UHome.asp
Here is the link to a forum that they are on http://www.horsepowerjunkies.com/for...splay.php?f=43
Last edited by ZL1Killa; Jan 29, 2006 at 02:54 PM.
Ive got a headache now 
Ive done the shorty header thing at it put me up to within 4hp of my buddy's 01 with the same mods except his has stock manifolds. I will say that the 00-02 cars have better flowing manifolds because of this and Ive seen both styles off the car(I used to do installs too) and just by lookin at em they are better. The reason the 00 dont get in the mix is because its still got the LS1 intake.
Ive done the shorty header thing at it put me up to within 4hp of my buddy's 01 with the same mods except his has stock manifolds. I will say that the 00-02 cars have better flowing manifolds because of this and Ive seen both styles off the car(I used to do installs too) and just by lookin at em they are better. The reason the 00 dont get in the mix is because its still got the LS1 intake.
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Verdad Gallardo all it had on it was the hypertech.....its an 01...and I don't really freakin know and i don't care....she's running good.
The car came with slp lid,bellow,subframeconnectors,strut twr brc and the HYPERTECH power programmer
My first dyno with HYPERTECH 342/352
Second dyno with headers and y-pipe(catless)w/stock muffler 356/375
3rd dyno with Nick Williams 90mm TB and FAST 90mm intake mani 365/385
CAR IS UNTUNED AS OF NOW, and my SD tun will be done this weekend
The car came with slp lid,bellow,subframeconnectors,strut twr brc and the HYPERTECH power programmer
My first dyno with HYPERTECH 342/352
Second dyno with headers and y-pipe(catless)w/stock muffler 356/375
3rd dyno with Nick Williams 90mm TB and FAST 90mm intake mani 365/385
CAR IS UNTUNED AS OF NOW, and my SD tun will be done this weekend
Thread Starter
TECH Fanatic
Joined: Oct 2005
Posts: 1,131
Likes: 76
From: olympia, wash
Originally Posted by ZL1Killa
I thought i had put it in my post but with hypertech i had 342/352 sorry guys.
If you want to think I'm an idiot now because I had hypertech go ahead. I have efi live now and I'm finishing up my SD tune this weekend. I live in wilson and I'm currently in charlotte going to school. As of November 05 my car put down 365HP and 385TQ...here is the dyno sheet.
Also, how is 8-15HP and upwards of 20+TQ gains for buying headers pricy for the power when you can spend 500 or more bucks on a tuning program and not know WTF you are doing and get lower numbers....OR IF YOU DO KNOW WHAT YOU ARE DOING gain what? typically around 15HP and 20TQ???
I saw headers as one of the first and best mods to the ls1, versus buying a TB or intake mani.
If you want my previous dyno runs I'll email them to you, as they are far above the 100KB upload limit here, if you want more info call Caleb and ask him about the Red trans am
He's at FASTLANE motorsports http://www.fastlanemotorsports.us/UHome.asp
Here is the link to a forum that they are on http://www.horsepowerjunkies.com/for...splay.php?f=43
If you want to think I'm an idiot now because I had hypertech go ahead. I have efi live now and I'm finishing up my SD tune this weekend. I live in wilson and I'm currently in charlotte going to school. As of November 05 my car put down 365HP and 385TQ...here is the dyno sheet.
Also, how is 8-15HP and upwards of 20+TQ gains for buying headers pricy for the power when you can spend 500 or more bucks on a tuning program and not know WTF you are doing and get lower numbers....OR IF YOU DO KNOW WHAT YOU ARE DOING gain what? typically around 15HP and 20TQ???
I saw headers as one of the first and best mods to the ls1, versus buying a TB or intake mani.
If you want my previous dyno runs I'll email them to you, as they are far above the 100KB upload limit here, if you want more info call Caleb and ask him about the Red trans am
He's at FASTLANE motorsports http://www.fastlanemotorsports.us/UHome.asp
Here is the link to a forum that they are on http://www.horsepowerjunkies.com/for...splay.php?f=43
If that's what it take's to get power then that's the way it is.
But there is another option that I have been considering, nitrous, that give's a bit more bang for the buck.
duh. you can also blow things up a little..just a little quicker than normal.
Yes I paid some money for what I have. Then again you must also realize that I know a few people around here and I didn't pay the typical price for the FAST intake manifold or the TB. I realize that Nitrous can be awesome and reliable. I just don't see the point in relying on a bottle to push you...I like my motor and I don't want to spray it and POSSIBLY hurt something and then be **** outa luck for having a trans am with a blown motor, because I don't have money to dish out for that. Right now the car is not properly tuned and when I finish my SD tune this weekend and go dyno next time I will post the results, I don't care what you think of me nor what you think of my car, I just don't use nitrous. Everyone does their own thing...we are all car enthusiasts, you don;t like my setup then don't follow it
All the mods that I have done have been researched and for my future mods upcoming they will pay themselves off.
This is a comment that I like to say, along with probably a LOT of other people....what happens if your baby bottle runs out of "milk".... I will always have power and I like that. I'm not saying don't use nitrous; I'm just saying its not for me.
Yes I paid some money for what I have. Then again you must also realize that I know a few people around here and I didn't pay the typical price for the FAST intake manifold or the TB. I realize that Nitrous can be awesome and reliable. I just don't see the point in relying on a bottle to push you...I like my motor and I don't want to spray it and POSSIBLY hurt something and then be **** outa luck for having a trans am with a blown motor, because I don't have money to dish out for that. Right now the car is not properly tuned and when I finish my SD tune this weekend and go dyno next time I will post the results, I don't care what you think of me nor what you think of my car, I just don't use nitrous. Everyone does their own thing...we are all car enthusiasts, you don;t like my setup then don't follow it
All the mods that I have done have been researched and for my future mods upcoming they will pay themselves off.
This is a comment that I like to say, along with probably a LOT of other people....what happens if your baby bottle runs out of "milk".... I will always have power and I like that. I'm not saying don't use nitrous; I'm just saying its not for me.
Last edited by ZL1Killa; Jan 30, 2006 at 12:25 PM.
you know...this subject has gotten all off of what it was. The point is exhaust gains are anywhere from 10-15HP and around 20+TQ
The other point is I have the HP I have on BOLT ONS ONLY. true i did spend some money....but I can still go digging into the motor and get even more
The other point is I have the HP I have on BOLT ONS ONLY. true i did spend some money....but I can still go digging into the motor and get even more
Originally Posted by TheBlurLS1
The amount of hot air in this thread is enough to slow the whole boards down .5 in the 1/4.
342/352 stock?
377/389 with exhaust?
shorty headers on 01-02's?
This thread needs to be deleted.
342/352 stock?
377/389 with exhaust?
shorty headers on 01-02's?
This thread needs to be deleted.