1k hp Drivetrain Upgrades?

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Mar 31, 2019 | 01:52 PM

lilryan

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Instructor

Joined: Oct 2016

Posts: 168

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From: Kansas

1k hp Drivetrain Upgrades?

Car is a 04 a4. Car will be a rods/pistons 6.0 with F1r. Transmission is fully built. Billet shafts, 6 pinion front planetary, Vigilante triple disc converter, tranny brace, etc.. Should I upgrade anything else between the converter and the engine before I put the motor back in?

Car currently has a 3.42 rearend. I have a 3.15 rearend with c6z shafts. Should I swap this in as well?

The weather has improved here in Kansas so I plan on getting back in the shop and getting the car ready for the summer. Thanks in advance.

Ryan

Mar 31, 2019 | 02:13 PM

glennd

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Joined: Feb 2005

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From: Upton MA

I would check the bearings in the torque tube and replace couplers and put in a stronger drive shaft.

Last edited by glennd; Apr 1, 2019 at 07:18 AM.

Apr 1, 2019 | 01:42 AM

itsslow98

Instructor

Joined: Jan 2012

Posts: 241

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From: Bel Air Maryland

I would leave the 3.42s and use c5z axles. They are more stout than c6z axles. Most c6z guys actually swap to c5z axles.

Apr 1, 2019 | 10:20 PM

Podium

Burning Brakes

Joined: Sep 2016

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DSS driveshaft.

Apr 4, 2019 | 01:27 PM

jbsblownc5

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From: CA

2017 C5 of the Year Finalist

St. Jude Donor '08

Quote:

Originally Posted by itsslow98

I would leave the 3.42s and use c5z axles. They are more stout than c6z axles. Most c6z guys actually swap to c5z axles.

Interesting info!!

Apr 23, 2019 | 09:29 PM

all4spl

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Joined: Apr 2014

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I have a drive shaft shop drive shaft and torque tube I would sell you.

Apr 24, 2019 | 01:47 PM

ForceFedC5

Melting Slicks

Joined: Jul 2002

Posts: 2,375

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From: Charlotte NC

I highly recommend contacting Jeremy @ RPM Transmissions. They are sponsers and have always guided me to the most cost effective solution. I've used them for many years and they've never let me down

May 3, 2019 | 06:52 AM

Rkreigh

Race Director

Joined: Dec 1999

Posts: 10,230

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From: Alexandria, Virginia, USA VA

Quote:

Originally Posted by Under-Pressure

I highly recommend contacting Jeremy @ RPM Transmissions. They are sponsers and have always guided me to the most cost effective solution. I've used them for many years and they've never let me down

2nd that Rodney did an auto swap for my on my c5 z06 and he can build 4L65E that will handle those power levels. The street manners are fantastic!

auto or stick RPM has you covered!

Last edited by Rkreigh; May 3, 2019 at 06:54 AM.