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Registered
Join Date: May 2003
Location: South Orange County
Posts: 166
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Turbo Upgrade
I am in touch with a turbo shop (MJM Turbos) about upgrading the original K26 turbo to the larger K27 (new impellers and housings.
Has anyone done this? Is the upgrade worth the $$ ? Has anyone dealt with this vendor? Help! 
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03 Silver PT Turbo - Ours 86 White 951 - His 86 White 944 Manual - Hers 98 C-4 Sons 86 Gold 944 Auto - Sons 84 Maroon 944 Auto - salvaged 78 Yellow 924 - found a new home |
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02-11-2004, 06:46 AM
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Registered
Join Date: Jan 2004
Location: California
Posts: 1
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Check out this site it talks about the ups and downs to putting a bigger turbocharger on your car.
www.clarks-garage.com/951faq.htm good luck! |
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02-11-2004, 09:29 AM
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Registered
Join Date: Jul 2001
Location: Edmonton, Alberta, Canada
Posts: 4,530
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K27/6 is a great combo you can get 300rwhp from it...
You will need new chips for it as well, and a MAF would be ideal.
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Alex - PCA Polar Region - Boxster Muncher 86' 944 Turbo - Megasquirt - 326 rwhp/340lbft @ 18 psi SOLD www.edmontonhomelife.com www.edmontonrealestate.ws |
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02-11-2004, 01:01 PM
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Registered
Join Date: Feb 2003
Location: SF East Bay
Posts: 1,856
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I just tuned a car with K27/8@20psi with APE-MAF and 50# injectors. Got 362rwhp!
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02-12-2004, 12:56 AM
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Registered
Join Date: Feb 2000
Location: Kingsport, TN
Posts: 2,935
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DannoXYZ,
What octante fuel do you put in it to run that kind of boost?
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Lawrence 1986 951 2002 SLK32 AMG 1987 328GTS 2011 528i |
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02-12-2004, 03:32 AM
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I would go for a K27/8 (like what Danno is running) before going to a K27-6.
Ahmet
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Cheers! |
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02-12-2004, 09:47 PM
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Registered
Join Date: Feb 2003
Location: SF East Bay
Posts: 1,856
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"What octante fuel do you put in it to run that kind of boost?"
We used a 50/50 mix of 91-oct. pump gas and 100-oct. race-gas. So it's about 96-octane effective. The 2-degree retarded-ignition setting on the chip would have allowed using 91-octane at that boost as well. I'm also currently testing out a K26/6 with wastegate-mod that allows 25-30psi of boost (20psi @ 2500rpm). The key to tuning these things is being able to adjust timing in minute increments. Sometimes, I make adjustments in just 1/3rd of a degree. |
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02-12-2004, 09:56 PM
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1984 Porsche 944 2.5 liter, 8 valve 
