Go Back   LS1TECH > VEHICLE SPECIFIC FORUMS > Pontiac GTO 2004-2006
Sign in using an external account
Register Forgot Password?
Search

Pontiac GTO 2004-2006 The Modern Goat

FAST90 on a stock LS2?

Reply
 
Thread Tools Search this Thread
Old 12-16-2007, 06:49 PM   #1
Staging Lane
 
Trader Rating: 0
Join Date: Nov 2007
Location: Westmont
Posts: 92
Send a message via AIM to zer0psi
Default FAST90 on a stock LS2?

Sold off a lot of my parts and may sell my FAST intake, but I'm wondering, on a mostly stock car with a cold air intake, high-flow cats, H-pipe, SAP mufflers, and a stall, is it worth putting it on?
__________________
zer0psi
2006 GTO A4 QSM w/ SAP
Intake/UDP/exhaust/stall

337/359 corrected bone stock w/ stock SAP mufflers
383/387 stock internals - Track times coming soon.

formerly known as 8banger. New car, new name
zer0psi is offline   Reply With Quote
Old 12-16-2007, 06:53 PM   #2
12 Second Club
 
AshyLarry's Avatar
 
Trader Rating: 8
Join Date: Sep 2006
Location: Indiana
Posts: 140
Default

I would say its not worth it, yes you will gain some, but not what it would on a cammed car.
__________________
07 TBSS AWD
2004 GTO -- gone
AshyLarry is offline   Reply With Quote
Old 12-16-2007, 08:17 PM   #3
On The Tree
 
PapaSmurf2005's Avatar
 
Trader Rating: 0
Join Date: Feb 2007
Posts: 196
Default

You'll gain some, but not 15-20RWHP like you would on a car with an aftermarket cam. If it's worth it to you to gain a little more top end power then throw it on, if not then sell it.
__________________

http://pic50.picturetrail.com/VOL440.../312648213.jpg
11.9 @ 116 - 1.89 60' - n/a - stock suspension - stock trans

PapaSmurf2005 is offline   Reply With Quote
Old 12-16-2007, 09:19 PM   #4
Launching!
 
GTO8522's Avatar
 
Trader Rating: 0
Join Date: Nov 2007
Location: Guam
Posts: 242
Default

you thinking of selling it and if how much?
Quote:
Originally Posted by zer0psi View Post
Sold off a lot of my parts and may sell my FAST intake, but I'm wondering, on a mostly stock car with a cold air intake, high-flow cats, H-pipe, SAP mufflers, and a stall, is it worth putting it on?
__________________
2004 GTO
GTO8522 is offline   Reply With Quote
Old 12-16-2007, 11:28 PM   #5
12 Second Club
 
CABRO's Avatar
 
Trader Rating: 1
Join Date: Apr 2007
Location: Clovis, NM
Posts: 284
Default

yeah i wanna know too.....
CABRO is offline   Reply With Quote
Old 12-17-2007, 06:44 AM   #6
Rob
TECH Fanatic
 
Rob's Avatar
 
Trader Rating: 6
Join Date: Nov 2001
Location: Diamondhead, MS
Posts: 1,310
Default

Quote:
Originally Posted by PapaSmurf2005 View Post
You'll gain some, but not 15-20RWHP like you would on a car with an aftermarket cam. If it's worth it to you to gain a little more top end power then throw it on, if not then sell it.
I wouldn't say that. I saw one put on an internally stock LS1 Camaro, held the record for awhile(still might), and he put on one because they were curious to see what it would do. It was a Mamo ported Fast. It gained 15-20rwhp just about everywhere. Everybody was extremely surprised that it produced that kind of power on a stock LS1.

FWIW, it was dynoed earlier and never was unstrapped. The intake was put on while the car was on the dyno. It was dynoed about 1-2 hours after the initial dyno.

I would expect a stock FAST to put up the same numbers on a stock LS1/LS2. Obviously the ported one will pull better numbers on a higher power engine.
__________________
Rob
04 GTO
05 GMC
Rob is offline   Reply With Quote
Old 12-17-2007, 02:50 PM   #7
Staging Lane
 
Trader Rating: 0
Join Date: Nov 2007
Location: Westmont
Posts: 92
Send a message via AIM to zer0psi
Default

Wow. I think I may have to keep it then. I may just end up putting on my Kooks, and end up with full bolt-ons. I was resisting the mod bug but I'm really horrible at it so far.
__________________
zer0psi
2006 GTO A4 QSM w/ SAP
Intake/UDP/exhaust/stall

337/359 corrected bone stock w/ stock SAP mufflers
383/387 stock internals - Track times coming soon.

formerly known as 8banger. New car, new name
zer0psi is offline   Reply With Quote
Old 12-17-2007, 02:54 PM   #8
TECH Regular
 
ExTurbo's Avatar
 
Trader Rating: 0
Join Date: Nov 2006
Location: Westampton, NJ
Posts: 444
Send a message via AIM to ExTurbo
Default

ive seen numerous dyno graphs with fast 90's on stock internal cars that gained maybe 5hp and lost it everywhere else. 1 LS1 that gained power everywhere seems a bit fishy to me...honestly id do some searching and look for yourself. On an LS2 you probably wont loose peak power, but i wouldnt be suprised if you lost low end tq with it. And thats def not something you wanna loose with a heavy GTO (trust me)

edit: granted this is on a 346CI motor but its also an LS6
http://www.ls1tech.com/forums/showthread.php?p=8211532
__________________
06 M6 GTO 231/234 .613 .598 112+1,u/drive pulley, shifter, 3.91 gears, long tubes, side pipes, LS7 clutch, rear shocks and springs, mamofied fast 90/90
11.67 @ 119 1.7 60' spinning


11.67 pass
http://s162.photobucket.com/albums/t...urrent=168.flv

Last edited by ExTurbo; 12-17-2007 at 03:09 PM..
ExTurbo is offline   Reply With Quote
Old 12-17-2007, 04:39 PM   #9
Staging Lane
 
Trader Rating: 0
Join Date: Nov 2007
Location: Westmont
Posts: 92
Send a message via AIM to zer0psi
Default

Quote:
Originally Posted by ExTurbo View Post
ive seen numerous dyno graphs with fast 90's on stock internal cars that gained maybe 5hp and lost it everywhere else. 1 LS1 that gained power everywhere seems a bit fishy to me...honestly id do some searching and look for yourself. On an LS2 you probably wont loose peak power, but i wouldnt be suprised if you lost low end tq with it. And thats def not something you wanna loose with a heavy GTO (trust me)

edit: granted this is on a 346CI motor but its also an LS6
http://www.ls1tech.com/forums/showthread.php?p=8211532
I'm also thinking that, LS6 or not, it's still different because it's a 346 with a smaller (78MM) throttle body. The step-up in throttle bodies is most likely what killed the low end torque. Being that my car has a 90mm TB stock, I don't think that adding a better flowing intake manifold while keeping the same TB will kill my low end nearly as much. In fact, I'm debating having all my mods installed, dyno'ing the car, and then putting it on the dyno again after the FAST90.
__________________
zer0psi
2006 GTO A4 QSM w/ SAP
Intake/UDP/exhaust/stall

337/359 corrected bone stock w/ stock SAP mufflers
383/387 stock internals - Track times coming soon.

formerly known as 8banger. New car, new name
zer0psi is offline   Reply With Quote
Old 12-17-2007, 04:58 PM   #10
On The Tree
 
PapaSmurf2005's Avatar
 
Trader Rating: 0
Join Date: Feb 2007
Posts: 196
Default

Quote:
Originally Posted by Rob View Post
I wouldn't say that. I saw one put on an internally stock LS1 Camaro, held the record for awhile(still might), and he put on one because they were curious to see what it would do. It was a Mamo ported Fast. It gained 15-20rwhp just about everywhere. Everybody was extremely surprised that it produced that kind of power on a stock LS1.

FWIW, it was dynoed earlier and never was unstrapped. The intake was put on while the car was on the dyno. It was dynoed about 1-2 hours after the initial dyno.

I would expect a stock FAST to put up the same numbers on a stock LS1/LS2. Obviously the ported one will pull better numbers on a higher power engine.
I highly doubt that, if that is true than that is a rare case. It being ported would help, but I have never seen a car gain power down low from adding a FAST LSX intake manifold, it's always beein in the 3500-4000+ RPM range.

I've seen quite a few cars dyno, mine as well with befor and after mods. Honestly from what I have seen you'll gain maybe 5-8RWHP from adding the FAST on a stock motor, in the upper RPM's.
__________________

http://pic50.picturetrail.com/VOL440.../312648213.jpg
11.9 @ 116 - 1.89 60' - n/a - stock suspension - stock trans

PapaSmurf2005 is offline   Reply With Quote
Old 12-17-2007, 05:41 PM   #11
Banned
 
Texas Heat's Avatar
 
Trader Rating: 9
Join Date: Jun 2004
Location: Ft Hood, TX
Posts: 1,088
Default

Just installed mine on my stock cammed LS2 and love it. Then again I have 9psi backing it so i dunno it's up to you really.
Texas Heat is offline   Reply With Quote
Old 12-18-2007, 08:51 AM   #12
Rob
TECH Fanatic
 
Rob's Avatar
 
Trader Rating: 6
Join Date: Nov 2001
Location: Diamondhead, MS
Posts: 1,310
Default

Quote:
Originally Posted by PapaSmurf2005 View Post
I highly doubt that, if that is true than that is a rare case. It being ported would help, but I have never seen a car gain power down low from adding a FAST LSX intake manifold, it's always beein in the 3500-4000+ RPM range.

I've seen quite a few cars dyno, mine as well with befor and after mods. Honestly from what I have seen you'll gain maybe 5-8RWHP from adding the FAST on a stock motor, in the upper RPM's.
Whether you believe me or not is up to you. I know what we all saw. The car in question was the fastest stock internal LS1 on this site. If I remember right, he was running 11.5 or so when this was done. This intake was for his 408 that was being built and was just a "what if" kind of thing. Nobody thought it would make much power, even Mamo. It made the power.
__________________
Rob
04 GTO
05 GMC
Rob is offline   Reply With Quote
Old 12-18-2007, 08:04 PM   #13
On The Tree
 
PapaSmurf2005's Avatar
 
Trader Rating: 0
Join Date: Feb 2007
Posts: 196
Default

Quote:
Originally Posted by Rob View Post
Whether you believe me or not is up to you. I know what we all saw. The car in question was the fastest stock internal LS1 on this site. If I remember right, he was running 11.5 or so when this was done. This intake was for his 408 that was being built and was just a "what if" kind of thing. Nobody thought it would make much power, even Mamo. It made the power.
Which is why I can care less about dyno #'s, there are too many variables and they are not very consistent. So I could care less about what I gained dyno # wise when I had put on the FAST LSX. All I know is it gave me 2-3 tenths off my ET, consistently.
__________________

http://pic50.picturetrail.com/VOL440.../312648213.jpg
11.9 @ 116 - 1.89 60' - n/a - stock suspension - stock trans

PapaSmurf2005 is offline   Reply With Quote
Old 12-18-2007, 08:57 PM   #14
Rob
TECH Fanatic
 
Rob's Avatar
 
Trader Rating: 6
Join Date: Nov 2001
Location: Diamondhead, MS
Posts: 1,310
Default

Quote:
Originally Posted by PapaSmurf2005 View Post
Which is why I can care less about dyno #'s, there are too many variables and they are not very consistent. So I could care less about what I gained dyno # wise when I had put on the FAST LSX. All I know is it gave me 2-3 tenths off my ET, consistently.
See that is just it. There was no variable. It was dynoed on the same day, same dyno, about an hour after getting done before it was installed. It was never unstrapped from the dyno.

A dyno is a tool to see what, if any, gains were made. If it showed a gain, then it made power. Period.

There are just as many variables at the track. DA, temp, track prep, etc. You can claim anything to skew numbers.

All I can say is what I saw with my own two eyes that day. I was there when it was getting strapped on and taken off.
__________________
Rob
04 GTO
05 GMC
Rob is offline   Reply With Quote
Old 12-18-2007, 10:04 PM   #15
On The Tree
 
PapaSmurf2005's Avatar
 
Trader Rating: 0
Join Date: Feb 2007
Posts: 196
Default

Quote:
Originally Posted by Rob View Post
See that is just it. There was no variable. It was dynoed on the same day, same dyno, about an hour after getting done before it was installed. It was never unstrapped from the dyno.

A dyno is a tool to see what, if any, gains were made. If it showed a gain, then it made power. Period.

There are just as many variables at the track. DA, temp, track prep, etc. You can claim anything to skew numbers.

All I can say is what I saw with my own two eyes that day. I was there when it was getting strapped on and taken off.
A dyno is a tool used for tuning cars.

All I am saying is dyno numbers mean squat IMO. I could care less if you saw that person make 100RWHP by adding a FAST. On 90% of the cars you are only going to gain 5-7RWHP on an almost stock car and 15-20 on a cam+bolt on+etc car. Of course there are some that will gain more and some that will gain less. This all depends on the dyno and DA.
__________________

http://pic50.picturetrail.com/VOL440.../312648213.jpg
11.9 @ 116 - 1.89 60' - n/a - stock suspension - stock trans

PapaSmurf2005 is offline   Reply With Quote
Old 12-20-2007, 10:13 AM   #16
Staging Lane
 
Trader Rating: 0
Join Date: Nov 2007
Location: Westmont
Posts: 92
Send a message via AIM to zer0psi
Default

Well, it's getting installed as we speak...let's see if it's worthwhile.
__________________
zer0psi
2006 GTO A4 QSM w/ SAP
Intake/UDP/exhaust/stall

337/359 corrected bone stock w/ stock SAP mufflers
383/387 stock internals - Track times coming soon.

formerly known as 8banger. New car, new name
zer0psi is offline   Reply With Quote
Old 12-21-2007, 05:15 PM   #17
11 Second Club
 
Canada's Avatar
 
Trader Rating: 2
Join Date: Jan 2006
Location: St.Louis
Posts: 392
Send a message via Skype™ to Canada
Default

Quote:
Originally Posted by zer0psi View Post
Wow. I think I may have to keep it then. I may just end up putting on my Kooks, and end up with full bolt-ons. I was resisting the mod bug but I'm really horrible at it so far.
Ya I tried that too. Didnt work very well. Figured after the first year, which comes up in a few days, that I've owned it I've invested around $7,000. I've done some go fast, looks and luxory mods though.
Canada is offline   Reply With Quote
Old 12-21-2007, 05:15 PM
LS1Tech
Pontiac Firebird




Paid Advertisement
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off



Join Ls1Tech

All times are GMT -5. The time now is 02:26 PM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Service - Privacy Statement - Terms of Service - JOBS
Emails & Contact Details