Another independent LT Header Test....

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Dec 18, 2013 | 05:36 PM

#21

jim2527

Race Director

Joined: Apr 2003

Posts: 19,352

Likes: 654

From: Tampa, Florida

How's ground clearance compared to stock?

Dec 18, 2013 | 06:05 PM

#22

AR Headers

Premium Supporting Vendor

Joined: Nov 2005

Posts: 1,779

Likes: 129

From: Amityville ny 631-608-1986

Quote:

Originally Posted by jim2527

How's ground clearance compared to stock?

Jim, Our header system sits above the floor boards. You'd have to destroy the entire undercarraige before you even scratched the headers.

Nick

Dec 18, 2013 | 07:46 PM

#23

~~punky~~

Banned Scam/Spammer

Joined: Mar 2005

Posts: 8,083

Likes: 3,869

From: Bonita Springs FL

Quote:

Originally Posted by AR Headers

Jim, Our header system sits above the floor boards. You'd have to destroy the entire undercarraige before you even scratched the headers.

Nick

You guys make great stuff! I have used your LTs on several vehicles with superb results. I will be installing your LTs on my C7(when I get it). Keep up the good work gents!

Dec 18, 2013 | 07:54 PM

#24

dvandentop

Race Director

Joined: Dec 2000

Posts: 14,697

Likes: 584

From: Sioux Falls SD

wow quite the difference

Dec 18, 2013 | 09:42 PM

#25

BLKTA

Burning Brakes

Joined: Jul 2002

Posts: 791

Likes: 52

Why are the Kooks graphs so bumpy and the others so smooth? Was there no smoothing applied?

Dec 19, 2013 | 09:15 AM

#26

gonabite

Pro

Joined: Mar 2011

Posts: 581

Likes: 17

Quote:

Originally Posted by BLKTA

Why are the Kooks graphs so bumpy and the others so smooth? Was there no smoothing applied?

If you look at Vengance's test the kooks graph is not as smooth as ARH or Phadt as well. It must be the header. It does not benefit either vendor to skew any results. As they are probably dealers for all the brands and make money on all sales.

Dec 19, 2013 | 09:19 AM

#27

niphilli2

Drifting

Joined: Jul 2002

Posts: 1,489

Likes: 165

From: Raleigh, NC

A 50 ft-lb difference at 2500RPM is absolutely incredible. Huge seat of the pants difference.

Was this tuned?

Dec 19, 2013 | 09:26 AM

#28

gonabite

Pro

Joined: Mar 2011

Posts: 581

Likes: 17

Quote:

Originally Posted by niphilli2

a 50 ft-lb difference at 2500rpm is absolutely incredible. Huge seat of the pants difference.

Was this tuned?

no tune, stock calibration

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Dec 19, 2013 | 03:48 PM

#29

BADA BING

Racer

Joined: Mar 2006

Posts: 304

Likes: 1

From: Ridley Park PA

cats or no cats??

Dec 19, 2013 | 06:13 PM

#30

AR Headers

Premium Supporting Vendor

Joined: Nov 2005

Posts: 1,779

Likes: 129

From: Amityville ny 631-608-1986

Quote:

Originally Posted by BADA BING

cats or no cats??

With cats.

Nick

Dec 19, 2013 | 09:00 PM

#31

OBSSSD

Drifting

Joined: May 2002

Posts: 1,479

Likes: 42

From: Dallas / Ft. Worth The Republic of TEXAS

Quote:

Originally Posted by Redline Motorsports

The interesting topic is here is "who decided when the LS3 came out that it HAD to have a 1.875" primary" It just kind of happened and like cattle we all followed because that's what everyone did...so here we are with a similar engine.

Dyno tests have repeatedly shown the 1-7/8" outperform the 1-3/4" everywhere on the LS3. They also give room to grow for heads/cam or blower too so a no brainer for those doing more

Carry on...

Dec 20, 2013 | 08:49 PM

#32

ChucksZ06

Drifting

Joined: Jul 2009

Posts: 1,358

Likes: 59

What was the baseline dyno for the car before the headers. I was trying to compare with vengeance's baseline but different dyno's etc comes into play. Seems getting the tune right on these lt1 engines is worth more than the previous ls engines. Is the afr harder to get right?