Stock Turbo Model (Compressor Map)

mgmshar · 05-06-2001, 12:03 PM

I am trying to find a compressor map for the stock Garrett 86/87 GN turbo. I have been searching for quite a while, and I can't find it.

1. Does anybody know the exact model and trim of the stock GN turbo?
2. Does anybody have a compressor map for it?
3. Does anybody have a compressor map that is close to the stock turbo, if the stock turbo map isn't available?

I tried the archives, but I didn't see anything. Any help would be greatly appreciated.

Mike
1986 GN

sardonyx247 · 05-17-2004, 04:33 PM

Does anyone have the size/specs of a Stock turbo?

Steve Wood · 05-17-2004, 05:48 PM

never seen a stock map...call John Craig at Limit and he will be as likely as anyone to have some info.. Or Harry at PTE, both come from Garrett originally.

JDEstill · 05-18-2004, 06:22 PM

Never seen one either. John Craig told a buddy of mine a few years ago that he didn't have a map for it. At least if he did have it, he wasn't handing it out to anyone.

A T'netics guy said their map for the TO4B S-3 is "close", for whatever that's worth.

Supposedly the compressor wheel was made from a 60-1 wheel, and is a TO4B "50" trim.

John

05-06-2001, 12:03 PM	#1 (permalink)
mgmshar Registered User Join Date: May 2001 Location: Brighton, MI USA Posts: 7	Stock Turbo Model (Compressor Map) I am trying to find a compressor map for the stock Garrett 86/87 GN turbo. I have been searching for quite a while, and I can't find it. 1. Does anybody know the exact model and trim of the stock GN turbo? 2. Does anybody have a compressor map for it? 3. Does anybody have a compressor map that is close to the stock turbo, if the stock turbo map isn't available? I tried the archives, but I didn't see anything. Any help would be greatly appreciated. Mike 1986 GN __________________ Mike Mshar President - Michigan Buick Turbo Club http://www.michiganbuickturboclub.org 1986 Buick GN, Stock Un-Opened Engine Best ET: 11.425@117.54mph w/ 100-Octane Best Speed: 11.549@119.40mph w/ 100-Octane

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05-17-2004, 04:33 PM	#2 (permalink)
sardonyx247 Lurker Join Date: May 2004 Posts: 1	Does anyone have the size/specs of a Stock turbo?

05-17-2004, 05:48 PM	#3 (permalink)
Steve Wood An American American Join Date: Sep 2000 Location: East of Eden, Texas Posts: 36,760	never seen a stock map...call John Craig at Limit and he will be as likely as anyone to have some info.. Or Harry at PTE, both come from Garrett originally.

05-18-2004, 06:22 PM	#4 (permalink)
JDEstill Registered User Join Date: Feb 2004 Location: Tomball, TX Posts: 119	Never seen one either. John Craig told a buddy of mine a few years ago that he didn't have a map for it. At least if he did have it, he wasn't handing it out to anyone. A T'netics guy said their map for the TO4B S-3 is "close", for whatever that's worth. Supposedly the compressor wheel was made from a 60-1 wheel, and is a TO4B "50" trim. John