Mod plans to reach 400whp

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Jul 18, 2012 | 05:27 PM

jeffinavette

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Instructor

Joined: Dec 2009

Posts: 237

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Mod plans to reach 400whp

Hey guys i'm looking to make 400whp with my bolt on's that im planning to purchase. I've done a little research on here but i'm willing to see what you guys think and am open for discussion/suggestions. 07 LS2 A6 car here.

-Vararam Snake Charmer
-Fast 102 Ported
-160 Tstat
-OBX Headers
-LG Axle Back Exhaust
-Tune

Stock converter, stock heads, stock cam

I want to make 400 with just bolt on's before going to the SC later on down the road.

Jul 18, 2012 | 05:45 PM

Snug

Advanced

Joined: Jan 2004

Posts: 83

Likes: 3

From: Aiken SC

That doesn't sound unreasonable since my 06 LS2 is making 381rwhp with Kooks headers, Borla exhaust, and a tune.

Jul 19, 2012 | 09:22 AM

CWHPARTS

Platinum Supporting Dealership

Joined: Sep 2007

Posts: 4,206

Likes: 28

From: Houston Tx

Quote:

Originally Posted by Snug

That doesn't sound unreasonable since my 06 LS2 is making 381rwhp with Kooks headers, Borla exhaust, and a tune.

are you a auto or manual?

to the op you will be close

on mine i did 160 thermo, unported fast 102, halltech mf103, lg 1 3/4'' headers (no cats), flowmasters and it made 395 rwhp (sae) but mine is a manual auto lose more power through the drivetrain.

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Jul 19, 2012 | 10:10 AM

FloydSummerOf68

Race Director

Joined: Mar 2007

Posts: 11,331

Likes: 18

From: Missouri City Texas

You'll need an underdrive pulley to try and hit 400rwhp on an A6 LS2.

I put down 397 with Ported FAST, Catless longtubes, intake and 25% UD pulley

Jul 19, 2012 | 10:37 AM

ricefed

Instructor

Joined: Jan 2012

Posts: 228

Likes: 1

From: Roseville Michigan

MI Events Coordinator

Don't waste money on all that. Just get a sc and blow the 400 away. You won't use the VRAM with a sc and the intake won't get you anything extra with a sc. My 07 was bone stock added the A&A sc and put down 546 rwhp.

Jul 21, 2012 | 01:22 AM

Gering

Tolero Apto Victum

Joined: Jul 2007

Posts: 9,669

Likes: 37

From: Woodlands TX

OP: We have the same car, 07 A6. Take a look at my mods list for some ideas. I am making 433 RWHP & 413 RWTQ. I also have over 135,000 miles on it and still running strong.

Jul 21, 2012 | 08:55 AM

0Brian@RPT

Former Vendor

Joined: Feb 2007

Posts: 2,572

Likes: 1

From: Austin Texas

Quote:

Originally Posted by ricefed

We did an install on a 05 LS2 A4 and put down 573 rwhp on a stock Vette. The Vararam and FAST 102 are not needed and makes a down payment on a blower. The FAST Intakes bring some new problems if you will be installing the SC.

The FAST Intakes are an inch longer and pushes the TB forward 1 inch. That causes the TB motor not to sit in the SC bracket as designed. The TB has to be flipped 180 degrees and you need a TB extension harness from Caspers. Now that the TB Motor is on the driver side, it hits the power steering reservoir. The lower hose needs extended from the reservoir to the pump, 5/8" heater hose. Also, the reservoir will need shimmed by 1" to clear the TB Motor. The spacers that come with the Katech Tensioner are a perfect length for shimming the PS reservoir. With the FAST 102, it is a good idea to use the Hinson Motor Mount and drop the engine by 1/3" to allow better clearance between the cowl and intake.

Last edited by Brian@RPT; Jul 21, 2012 at 09:05 AM.

Jul 21, 2012 | 09:33 AM

mattdracing

Racer

Joined: Mar 2012

Posts: 388

Likes: 0

From: NC

i have an LS3 with full bolt ons/tune and it pulls pretty decent but not near enough for me. im gonna go forced induction when i can =) from stock to bolt ons...its a noticeable difference but nothing that will blow you away at all.