So whats the deal ?

Reply Subscribe

Thread Tools

Search this Thread

Oct 4, 2008 | 12:46 AM

SSmoken

Thread Starter

11 Second Club

iTrader: (26)

Joined: Oct 2006

Posts: 2,140

Likes: 0

From: S.W. Missouri

So whats the deal ?

Heres the scoop. My car had a 3200 stall, 3.73's, and a 100 shot and thats it. It ran 11.64 @115 with 1.7 60'. I added an ls6 intake, qtp headers, and a 4000 stall (i broke my other one.) So tonight i take it out to make its first pass with the new stuff. It cut a 1.6 60' and it only ran a 11.8 @109. I was like wtf!?! I make another pass and it was a 11.8 @108 with 1.7 60'. I keep the car in drive and it was at 6100rpm crossing the line. The 2nd time i had to put it in od. Both passes it was wraping out. Should i just leave it in od or what ??? also why did lose .2 and 6-7 mph after adding those mods?? I realize the converter may make it lose a little but an intake and headers i would assume would make up for it. Im lost. what do you guys think ? No im not losing n2o pressure.

Oct 5, 2008 | 12:04 AM

SSmoken

Thread Starter

11 Second Club

iTrader: (26)

Joined: Oct 2006

Posts: 2,140

Likes: 0

From: S.W. Missouri

anyone lol ?

Oct 5, 2008 | 09:26 AM

Old Geezer

TECH Senior Member

iTrader: (3)

Joined: Jun 2004

Posts: 5,639

Likes: 71

From: GA, USA

Datalogs?
You should be able to compare the B4 and after logs, and also calculate the slip %. I'm betting your new, 4K verter is the problem.
[High slip%] That's why U R on the limiter...

Oct 5, 2008 | 10:23 AM

TwoFast4Lv

10 Second Club

iTrader: (8)

Joined: Nov 2001

Posts: 10,023

Likes: 6

From: LT1 land...the "409" of the 90s!

What kind of converter did you put in? Also did you tune the car after the new mods?

Oct 5, 2008 | 01:02 PM

SSmoken

Thread Starter

11 Second Club

iTrader: (26)

Joined: Oct 2006

Posts: 2,140

Likes: 0

From: S.W. Missouri

Quote:

Originally Posted by Old Geezer

Datalogs?
You should be able to compare the B4 and after logs, and also calculate the slip %. I'm betting your new, 4K verter is the problem.
[High slip%] That's why U R on the limiter...

if thats what it is, how can it be fixed? I don't have a data logger. Is this something my tuner could fix?

My converter is a PTC and yes it has been retuned. That was the first pass I have ever made on it.

Oct 5, 2008 | 01:11 PM

heavy6.0

TECH Fanatic

iTrader: (69)

Joined: Apr 2007

Posts: 1,482

Likes: 0

definitely the converter, your car should be running 11.4 - 11.5 with around 2 more mph now with the new mods (minus converter) also we had some damn good air the other night so the n20 may have been off a hair. We were having all kinds of problems getting it right.