Question about long tubes on a 98 ls1. - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

bill2129 · 07-18-2011, 03:19 PM

Im going to be buying long tubes for my 98 ls1. What are the avg gains with them? I was on the phone with RaceKrafters because there gonna need to tune out my code. Well he says its only 10-15. 20 with a tune. I thought 10 was a little low but 15 seemed more real. Right now my car has a lid, Borla exhaust. and 146k.

Revo1 · 07-18-2011, 09:16 PM

Sounds low. I'm no expert, but I'd expect to pick up around 20 with a tune, maybe a little more...

Darkflow · 07-18-2011, 09:27 PM

What else do you have done to the car? With a tune you should easily see 20+hp.

If i remember correctly, a member on the 35thLE forum dyno'd his SS stock @ 319hp i believe. Added longtubes, exhaust, slp lid & ram air kit, tuned it & put down 360 to 370hp. (i dont remember if he did any other mods, possibly ported the stock throttle body if anything else. i do remember that his biggest power mod was the longtubes)

Now im not to sure completely on the exact numbers but they were around there.

bill2129 · 07-20-2011, 12:56 AM

Well I have a lid and exhaust. I think I have a 160sat the last owner put in. My temp is always a little lower then normal

JJ#48Racing · 07-21-2011, 10:12 PM

20hp is about what I'd expect.

bill2129 · 07-23-2011, 05:31 PM

Quote:

Originally Posted by JJ#48Racing

20hp is about what I'd expect.

Thanks

JHL88 · 07-23-2011, 11:47 PM

yea 20 or more is what id say

8cd03gro · 07-24-2011, 12:55 AM

25-30hp is what I've seen with LTs + tune. LTs are definitely the best bolt on mod for the ls1.

bill2129 · 07-24-2011, 03:31 PM

So that's 20 total with the tune and headers? Or just the headers? I was really expecting at least 18-20 with headers and non catted ypipe. Then maybe 15more for the tune. Or am I in dream land?

Revo1 · 07-24-2011, 03:59 PM

20 conservatively. Could pick up as much as 35. ya never know until she's tuned and on the rollers.

bill2129 · 07-24-2011, 04:08 PM

Thanks for the info. Guess I will just find out. After the headers and the tune how do you think I would match up vs the new SS? Im trying to race one of them soon. Only has lid and exhaust right now.

Neriah · 07-24-2011, 04:20 PM

Depends on how hard those 146k miles were put on that car lol

bill2129 · 07-24-2011, 04:31 PM

well it runs really good. No problems. Beat my dads T/A In it. same mods just lid and exhaust and his has 80k. So maybe there good miles (:

Darkflow · 07-24-2011, 07:58 PM

Quote:

Originally Posted by bill2129

Thanks for the info. Guess I will just find out. After the headers and the tune how do you think I would match up vs the new SS? Im trying to race one of them soon. Only has lid and exhaust right now.

Do you plan on doing other mods? If so, i would wait on a tune. Get all the mods you want & tune it. Otherwise you'll be wasting money on getting a tune now, and having to get another tune after the new mods. My car's been untuned for 2yrs now, waste's more gas then it did in stock form. Runs a bit rich but other then that, no harm. Keep up with maintance, my car's around the same mileage as yours and still running strong.

07-18-2011, 03:19 PM	#1
bill2129 Account Suspended Drives: 2085 Trans AM COBRA Join Date: Jan 2011 Location: Chester County PA Posts: 676	Question about long tubes on a 98 ls1. Im going to be buying long tubes for my 98 ls1. What are the avg gains with them? I was on the phone with RaceKrafters because there gonna need to tune out my code. Well he says its only 10-15. 20 with a tune. I thought 10 was a little low but 15 seemed more real. Right now my car has a lid, Borla exhaust. and 146k.

07-18-2011, 09:16 PM	#2
Revo1 Don't Like it? Suggit. Drives: 2010 2SS/RS Join Date: Aug 2008 Location: Fresno, CA Posts: 14,832 View My Garage	Sounds low. I'm no expert, but I'd expect to pick up around 20 with a tune, maybe a little more... __________________ "Tops off, tach up baby- loud and proud!" A Camaro lover from day one- 1996 3.8 V6 Camaro, to 1996 5.7 LT1 Camaro Z28, to the sold 2002 5.7 LS1 Camaro SS, and NOW, a [I]6.2 L99 VR 2SS/RS: XS Power stainless full exhaust, Airaid CAI, BMR drop springs and sways, custom tune by Cal Speed- 411rwhp

07-18-2011, 09:27 PM	#3
Darkflow Drives: 2002 Chevrolet Camaro SS LE Join Date: Jan 2011 Location: Odessa, TX Posts: 90 View My Garage	What else do you have done to the car? With a tune you should easily see 20+hp. If i remember correctly, a member on the 35thLE forum dyno'd his SS stock @ 319hp i believe. Added longtubes, exhaust, slp lid & ram air kit, tuned it & put down 360 to 370hp. (i dont remember if he did any other mods, possibly ported the stock throttle body if anything else. i do remember that his biggest power mod was the longtubes) Now im not to sure completely on the exact numbers but they were around there. __________________ 2002 35th Anniv. Chevrolet Camaro SS# 4784 LE# 2117

07-23-2011, 11:47 PM	#7
JHL88 Drives: 02 z06 Join Date: Oct 2009 Location: Virginia/south carolina Posts: 416	yea 20 or more is what id say __________________ 1997 RS wrecked 1998 Z28 sold 10 SS sold 2002 torch redc5z06 - sold :( '13 z71 4x4 - DD www.fquick.com/JHL88

07-24-2011, 03:59 PM	#10
Revo1 Don't Like it? Suggit. Drives: 2010 2SS/RS Join Date: Aug 2008 Location: Fresno, CA Posts: 14,832 View My Garage	20 conservatively. Could pick up as much as 35. ya never know until she's tuned and on the rollers. __________________ "Tops off, tach up baby- loud and proud!" A Camaro lover from day one- 1996 3.8 V6 Camaro, to 1996 5.7 LT1 Camaro Z28, to the sold 2002 5.7 LS1 Camaro SS, and NOW, a [I]6.2 L99 VR 2SS/RS: XS Power stainless full exhaust, Airaid CAI, BMR drop springs and sways, custom tune by Cal Speed- 411rwhp

07-20-2011, 12:56 AM	#4
bill2129 Account Suspended Drives: 2085 Trans AM COBRA Join Date: Jan 2011 Location: Chester County PA Posts: 676	Well I have a lid and exhaust. I think I have a 160sat the last owner put in. My temp is always a little lower then normal

07-21-2011, 10:12 PM	#5
JJ#48Racing Drives: 1998 Camaro SS Join Date: Oct 2008 Location: Lancaster, CA Posts: 1,115	20hp is about what I'd expect.

07-24-2011, 12:55 AM	#8
8cd03gro Drives: 2005 STi corn fed Join Date: Jul 2008 Location: Colorado Posts: 2,997	25-30hp is what I've seen with LTs + tune. LTs are definitely the best bolt on mod for the ls1.

07-24-2011, 03:31 PM	#9
bill2129 Account Suspended Drives: 2085 Trans AM COBRA Join Date: Jan 2011 Location: Chester County PA Posts: 676	So that's 20 total with the tune and headers? Or just the headers? I was really expecting at least 18-20 with headers and non catted ypipe. Then maybe 15more for the tune. Or am I in dream land?

07-24-2011, 04:08 PM	#11
bill2129 Account Suspended Drives: 2085 Trans AM COBRA Join Date: Jan 2011 Location: Chester County PA Posts: 676	Thanks for the info. Guess I will just find out. After the headers and the tune how do you think I would match up vs the new SS? Im trying to race one of them soon. Only has lid and exhaust right now.

07-24-2011, 04:20 PM	#12
Neriah Drives: 2011 2SS/RS Join Date: May 2011 Location: Brentwood, CA Posts: 860	Depends on how hard those 146k miles were put on that car lol __________________ Built By Blu808 LG G6X3 Cam, UD Pully, Rotofab Intake. Dynatech LT's. Borla ATAK Catback. Full BMR bushings and suspension.

07-24-2011, 04:31 PM	#13
bill2129 Account Suspended Drives: 2085 Trans AM COBRA Join Date: Jan 2011 Location: Chester County PA Posts: 676	well it runs really good. No problems. Beat my dads T/A In it. same mods just lid and exhaust and his has 80k. So maybe there good miles (:

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