Tuning a D1!

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Aug 3, 2004 | 06:42 PM

VETTEC5

Thread Starter

Burning Brakes

Joined: Sep 2003

Posts: 764

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From: South Florida

Tuning a D1!

I was trying to dyno tune last week and had too much boost.
I was marking 15# at the highest 4800-4900 RPM's.
I wasn't using a filter though to tune since this was the way high performance turbos were done.

Can not having a filter onthe intake of the SC give me too much boost?

I reinstalled the intake and filter and took the car out for a scan/log run before my dyno tune tommorow night and got max 10-10.5# of boost.

I'm trying to get down to 8#/9#.......

Does that sound right?

This is on a '03 C5 M6 w/all bolt ons, HF cats and cold air intake!

Thanks again!
Tony

Aug 3, 2004 | 07:26 PM

mdhmi

Team Owner

Joined: Jul 2003

Posts: 20,474

Likes: 2

From: Detroit

10 # of boost is *really* pushing it for a stock motor. What size pulley are you using?

Mark

Aug 3, 2004 | 07:29 PM

VETTEC5

Thread Starter

Burning Brakes

Joined: Sep 2003

Posts: 764

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From: South Florida

3.85!!

Aug 3, 2004 | 07:38 PM

SR71

Burning Brakes

Joined: Mar 2002

Posts: 1,040

Likes: 1

From: Knoxville TN

I'm getting 11psi at 6k and 13 psi at 7k with a 4.10 pulley. sounds like you need to pulley it down a little bit.

Aug 3, 2004 | 09:02 PM

0Slowhawk

Former Vendor

Joined: Jun 2002

Posts: 2,045

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From: Bridgewater Ma

Quote:

Originally Posted by SR71

I'm getting 11psi at 6k and 13 psi at 7k with a 4.10 pulley. sounds like you need to pulley it down a little bit.

Aug 3, 2004 | 09:37 PM

MelloYellow

Le Mans Master

Joined: Apr 2000

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No Air Filter will raise the boost some.

Aug 3, 2004 | 10:45 PM

VETTEC5

Thread Starter

Burning Brakes

Joined: Sep 2003

Posts: 764

Likes: 0

From: South Florida

I understand! I just didn't think it would flow that great.
"I am running twin intercoolers,not SI!!!"

I now have it at 11# w/ the 3.85!

Should I do the 4.10 or 4.25 pulley!!!!