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GENERAL => General => Topic started by: dogbone on January 11, 2008, 10:13:55 AM

Title: How can you tell if your turbo is a T25?
Post by: dogbone on January 11, 2008, 10:13:55 AM
Is there a stamp on it saying its a T25? It is stamped a M24, but I think thats the group, I am sure it is a T25 but is there someway of telling which one it is?
Title: Re: How can you tell if your turbo is a T25?
Post by: TGP Nick on January 11, 2008, 10:24:29 AM
It will have .68 AR stamped into the turbo if its a T25.
Title: Re: How can you tell if your turbo is a T25?
Post by: dogbone on January 11, 2008, 11:43:22 AM
Mine has A/R .80 on it, good or bad?
Title: Re: How can you tell if your turbo is a T25?
Post by: RICHTGP on January 11, 2008, 12:46:12 PM
MINE ALSO HAS M24 WITH A/R .80 STAMPED ON IT BUT I WAS TOLD ITS STILL A T-25. I'D LIKE TO KNOW IF ITS NOT.
Title: Re: How can you tell if your turbo is a T25?
Post by: grinders_18 on January 11, 2008, 12:56:44 PM
Nick's is a 1990 TGP....maybe the 89's had different writing on them? I'll check in a bit.
Title: Re: How can you tell if your turbo is a T25?
Post by: jerry455 on January 11, 2008, 02:31:33 PM
i am rebuilding mine right now. it is a 1990 and it says  A/R .80 M24   i ordered a kit from the g pop shop as recommended by others on this forum. i have the kit here and it says T2/T25 DYN/SEAL KIT. so it seems that a T2 and a T25 must be very similar.
Title: Re: How can you tell if your turbo is a T25?
Post by: grinders_18 on January 11, 2008, 03:00:21 PM
Mine also has A/R .80 M24 on it, and I also had mine prefessionally rebuilt by GPop Shop. I dunno Nick, maybe yours is a different turbo? It was rebuilt wasn't it? If so, maybe it was just replaced?
Title: Re: How can you tell if your turbo is a T25?
Post by: dogbone on January 11, 2008, 03:45:15 PM
I'm looking at the bill for my rebuild done at TEC Turbo Engineering Corp in Colarado, the TB25 cartridge #431876-5029 was $301, The core assembly (core chra) $100 and the turbine HSG T25 AR .68, part #430609-0123 $157.

Maybe some of these part numbers will be useful.

This was done by the previous owner.
Title: Re: How can you tell if your turbo is a T25?
Post by: flybynite on January 11, 2008, 04:22:24 PM
   .68 AR is for the turbine side. .80 AR is for the compressor side
Title: Re: How can you tell if your turbo is a T25?
Post by: grinders_18 on January 11, 2008, 04:42:44 PM
YES! Thank you, I KNEW that too! I'm not firing on all cylinders right now.
Title: Re: How can you tell if your turbo is a T25?
Post by: TGP Nick on January 11, 2008, 06:41:26 PM
My turbo isn't the original turbo, it does look a bit different from the oem turbos.
Title: Re: How can you tell if your turbo is a T25?
Post by: mfewtrail on January 12, 2008, 01:01:30 AM
Quote from: TGP Nick on January 11, 2008, 06:41:26 PM
My turbo isn't the original turbo, it does look a bit different from the oem turbos.

Got any pictures of it?

This is about the best picture I have of mine at the moment...
(http://i2.photobucket.com/albums/y33/mfewtrail/1990%20TGP/engineTGP.jpg)

Pretty sure mine, like the others here, has "M24 and the .80 A/R" written on the compressor side.
Title: Re: How can you tell if your turbo is a T25?
Post by: dogbone on January 12, 2008, 06:09:35 AM
My 89 is exactly like that.
Title: Re: How can you tell if your turbo is a T25?
Post by: RICHTGP on January 12, 2008, 10:36:51 AM
WHILE TAKING MY TURBO OUT THE INSULATION WRAP FELL APART. DOES ANYONE KNOW WHERE TO GET ANOTHER
ONE? :fluffy:
Title: Re: How can you tell if your turbo is a T25?
Post by: grinders_18 on January 12, 2008, 10:46:49 AM
As far as I was aware, that's it...once it's gone it's gone. I'd appreciate other people's input on the insulation as well.
Title: Re: How can you tell if your turbo is a T25?
Post by: TGPvsTIII on January 12, 2008, 10:53:50 AM
I think Jimmy spent a lot of time tring to find a new wrap and couldn't find the OEM ones new or used. I did see a decent used one on ebay a while back but the options are basicly buy some aftermarket wrap and wrap it up. I think Jimmy has this down to a scirnce with how many times we have had his off. Unwrapped it will melt things like the trans cable and add alot of heat to the powermaster III
Tim
Title: Re: How can you tell if your turbo is a T25?
Post by: TGP Nick on January 12, 2008, 06:16:04 PM
Quote from: mfewtrail on January 12, 2008, 01:01:30 AM
Got any pictures of it?
Nope.  Nobody gets to see my engine bay
Title: Re: How can you tell if your turbo is a T25?
Post by: grinders_18 on January 12, 2008, 09:15:46 PM
It's true. Nick's bound by the code not to show his engine bay.

I tried to open it up once, got my hand on the release lever, and he Captain Insano'd my eyeballs.
Title: Re: How can you tell if your turbo is a T25?
Post by: TGP Nick on January 12, 2008, 11:06:04 PM
Quote from: grinders_18 on January 12, 2008, 09:15:46 PM
I tried to open it up once, got my hand on the release lever, and he Captain Insano'd my eyeballs.
:bonk:
Title: Re: How can you tell if your turbo is a T25?
Post by: mfewtrail on January 13, 2008, 02:19:01 AM
As far as turbo blankets go, I've heard good things about the blankets "Boost Logic" sells. They go for around $150. I'm not sure if they will fit our turbochargers or not though. They sell two different sized blankets from what I remember. There's usually some blankets on ebay for about $120 shipped that look similar to the boost logic blankets, but I don't know if they are as good. I saw a thread on ClubGP where two guys had purchased the ebay blankets and took pictures, they looked pretty decent.  If my turbo blanket falls apart soon, I'll be searching for a replacement...