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Title: Garrett turbo model
Post by: TGPRobNY on March 14, 2005, 12:44:07 PM

What is the actual Garrett turbo model used in our TGP's ? Thanks

Title: Garrett turbo model
Post by: TGPilot on March 14, 2005, 01:36:14 PM

A T-25. Not sure of the trims and such...but it is the same as the 1987 Sunbird 2.0 GT Turbo. 8)

Title: Garrett turbo model
Post by: Jeorge on March 14, 2005, 02:55:47 PM

From my Site

About the Gerrett T25 Turbo used on the 3.1L {V}
Garret T-25 turbo .62 A/R intake , .60 A/R exhaust w/ closed loop boost control and integrated wastegate.

Title: Garrett turbo model
Post by: Invasion1 on March 14, 2005, 03:29:31 PM

From W-Body.com

Turbocharger

Garrett T-25, water cooled
Model #: TB2528
Part #: 465939-2
CHRA #: 431876-29
Wastegate: Vacuum, actuated by ECM-controlled solenoid
A/R Ratios: 0.68 Turbine; 0.80 Compressor

Title: Turbo THANKS!
Post by: TGPRobNY on March 14, 2005, 04:51:03 PM

Thanks everyone...very much appreciated!

Title: Garrett turbo model
Post by: Prospeeder on March 14, 2005, 09:39:44 PM

no, the Sunbird 2.0/Grand Am 2.0 had the T2 Turbo Chargers

Title: Garrett turbo model
Post by: TGPilot on March 15, 2005, 09:02:03 AM

Quote from: Prospeederno, the Sunbird 2.0/Grand Am 2.0 had the T2 Turbo Chargers

Ummmmmm sorry but I had a 1987 GT Sunbird that ran a T-25 from the factory! 84-85 on the 1.8L is the only years a T2 came on a Sunbird or Grand Am. Even then the thing was so frikkin small and the motor was such a dog they knew it was a mistake! Another issue was the T2 on those cars were not water-cooled and they had many service returns on them before the warranties ran out!

Make Model Year Engine Turbo Turbo Model Part Num
PONTIAC Firebird/Trans-Am 89 3.8L GAR TB0348 466748-4X
PONTIAC 80-81 4.9L GAR TB0305 465518-2X
PONTIAC McLaren / Grand Prix 89-90 3.1L GAR TB2528 465939-2X
PONTIAC Grand Am 88.5 2.0L GAR TB2521 465365-1X
PONTIAC 88 2.0L GAR TB2506 466876-1X
PONTIAC 87 2.0L GAR TB2506 466876-1X
PONTIAC Sunbird 89-90 2.0L GAR TB2522 465749-1X
PONTIAC 88.5 2.0L GAR TB2521 465365-1X
PONTIAC 88 2.0L GAR TB2506 466876-1X
PONTIAC 87 2.0L GAR TB2506 466876-1X
PONTIAC Sunbird Watercooled Upgrade 84-85 1.8L GAR TB0239 465853-1X
PONTIAC 84-85 1.8L GAR TB0206 466204-1X
PONTIAC 2000 Watercooled Upgrade 84-85 1.8L GAR TB0239 465853-1X
PONTIAC 84-85 1.8L GAR TB0206 466204-1X
PONTIAC Firebird / Trans-Am 89 3.8L GAR TB0348 466748-4X
PONTIAC 80-81 4.9L GAR TB0305 465518-2X
PONTIAC Grand Am / McClaren / 89 2.0L GAR TB2522 465749-1X
PONTIAC 88.5 2.0L GAR TB2521 465365-1X
PONTIAC 88 2.0L GAR TB2506 466876-1X
PONTIAC 87 2.0L GAR TB2506 466876-1X
PONTIAC Sunbird 89-90 2.0L GAR TB2522 465749-1X
PONTIAC 88.5 2.0L GAR TB2521 465365-1X
PONTIAC 88 2.0L GAR TB2506 466876-1X
PONTIAC 87 2.0L GAR TB2506 466876-1X
PONTIAC Sunbird Watercooled Upgrade 84-85 1.8L GAR TB0239 465853-1X
PONTIAC 84-85 1.8L GAR TB0206 466204-1X
PONTIAC 2000 Watercooled Upgrade 84-85 1.8L GAR TB0239 465853-1X

And before you say, "see there is a watercooled upgrade that is a T02". Realize that is an upgrade you can purchase from Garrett...the T02 never came on the 2.0 Sunbird/Grand Am or Pontiac 2000. Pontiac was in love with the T-25 for whatever reason...obviously big enough for the 2.0L, but not enough for the 3.1L 8)

*edit* I do take back that the Sunbird and GP Turbo's are identical...obviously a different part number...different trims I am sure! :oops: 8)

Title: Garrett turbo model
Post by: Invasion1 on March 15, 2005, 05:17:02 PM

Schooled

8)

Title: Garrett turbo model
Post by: Chris A on March 16, 2005, 08:04:10 PM

The sunbird used different a/r, believe it was .48 on both sides.

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MODIFICATIONS => Performance => Topic started by: TGPRobNY on March 14, 2005, 12:44:07 PM