2.5 GTO new turbos needed
2.5 GTO new turbos needed
Author
Discussion

wole0911

Original Poster:

432 posts

231 months

Saturday 29th September 2012
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Oh well it had to happen sooner or later and looks like sooner, need to replace or rebuild turbos and heads gotta come off valve seals as well...
Anybody out there running reliable useable 2.5 liter car running Gts or something else , im doing about 8,000 miles a year so want it to be drivable not just track car!
Is there such thing as uprated head gaskets for 2.5 GTO as they seem to be a weekness running higher boost levels and mine has had all the bottem end done i.e Forged pistons ect
Thanx Mark

trimman

77 posts

286 months

Sunday 30th September 2012
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Hi Mark I have a brand new pair of T25 Turbos for sale if your interested email me.
Martyn

anotherdom

535 posts

197 months

Sunday 30th September 2012
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Mark, you can replace stem seals without lifting the heads. I did the valve springs in situ. Dom.

mgbond

6,749 posts

261 months

Sunday 30th September 2012
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Just have to be careful not to drop valves into cylinder. Just turn engine so piston is TDC before doing that cylinder so no chance of loosing valves.

Personally if you need new turbos then put on the GT25s

Bondy

jdearden

1,746 posts

206 months

Sunday 30th September 2012
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I've just fitted gt25s and they are rally nice and sound awsome.

wole0911

Original Poster:

432 posts

231 months

Monday 1st October 2012
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Thanx for your messages evrybody i must admit i do like the sound of these Gt25s,will the GT25s fit straight on or are these the ones that need a flange change,
and where is the best place to purchace them from is it Garrat themselfs?
Once changed to the GT25s apart from a remap is there any other changes i.e exhuast,fuel pump or is it just a straight bolt on upgrade for a 2.5 GTO
Thanx for info about the vave prob as well
Mark
P.S have also been advised to move battery and some other electrics into the cabin, good move?

mgbond

6,749 posts

261 months

Monday 1st October 2012
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I understand that they will fit but really the flange on the exhaust should be changed

Gadgeroonie

5,362 posts

265 months

Monday 1st October 2012
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You could fit a pair of 3.0 turbos

wole0911

Original Poster:

432 posts

231 months

Monday 1st October 2012
quotequote all
will the 3 lit turbos bolt straight on or is that a flange change as well....
Sorry quickly getting confussed!!
Not to concerned about the exspenss of the turbos just dont want to make loads and loads of adaptions to get the best out of the car
Thanx Mark

mgbond

6,749 posts

261 months

Monday 1st October 2012
quotequote all
The answer is yes and no. sorry

They do fit but not correctly so the proper way to do it would be to change the flange on the exhaust.

If you have a std exhaust then you can maybe get away with just using the 3.o down pipe to the rest of the exhaust.

Years ago when I fitted the 3.0 exhaust to my 2.5, I had to keep the 2.5 down pipe.

Bondy