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gu rd28t turbo size
Posted: Tue Feb 20, 2007 9:03 am
by mud4b
does anyone know what the std gu rd28t turbo size or type is?
or a suitable bolt on upgrade...i blew mine to bits last night.
before you flame yes i have searched... no positive answer that i can see.
thanks mark.
Posted: Tue Feb 20, 2007 9:11 am
by MyGQ
All i know is that its a Garret T25 turbo
Posted: Tue Feb 20, 2007 9:35 am
by mud4b
MyGQ wrote:All i know is that its a Garret T25 turbo
sweet bud.
honestly thanks heaps now ill be able to search for one.
thanks mark.
Posted: Tue Feb 20, 2007 10:23 am
by weeman
could you use one off a 3L as i believe they are similar turbo as well?
Posted: Tue Feb 20, 2007 11:03 am
by mud4b
weeman wrote:could you use one off a 3L as i believe they are similar turbo as well?
did find some but it looks to have a 4 bolt flange where it bolts to the manifold.
the gu has a 3 bolt flange.
Posted: Tue Feb 20, 2007 11:13 am
by weeman
I mean the 3L diesel garrett turbo...
Posted: Tue Feb 20, 2007 3:36 pm
by MyGQ
The 3L Garret is a larger turbo than the 2.8L and kicks in at higher revs as the 3L revs out alot higher than the 2.8L
Posted: Tue Feb 20, 2007 3:49 pm
by badger
the 3l turbo also has computor controled wastegate etc. as far as i kno the 2.8's are normal wastegates
Posted: Tue Feb 20, 2007 7:03 pm
by stool
The standard turbo on the GQ 2.8 is a garrett T25
with a turbine housing of .48 .AR
and exhaust housing of ,48 AR
Posted: Tue Feb 20, 2007 11:43 pm
by mud4b
well i pulled it off today.
the shaft had split into 2. lost some of the turbine compressor wheel,it made it into the intercooler but not out of it. stuffed the cooler though.
it has chewed both the front and rear (not too much on this side) housing out
due to the wheels moving in and out and sideways around 5mm.
so its time to upgrade.. t28 time and new cooler.
Posted: Wed Feb 21, 2007 12:10 am
by vn15
mud4b wrote:well i pulled it off today.
the shaft had split into 2. lost some of the turbine compressor wheel,it made it into the intercooler but not out of it. stuffed the cooler though.
it has chewed both the front and rear (not too much on this side) housing out
due to the wheels moving in and out and sideways around 5mm.
so its time to upgrade.. t28 time and new cooler.
I have an RD28T engine in my modified GQ, and bought a new turbo last year, GT2871R, .86AR. Have 12mm plunger in the pump and you need to be able to spin the turbo, very good power from it though, have a big fmic, plenum chamber, 3" dump/zorst, LPG, etc............. around 250hp.
You should go for a ball bearing type rather than bushes, (T28)
or you get too much lag. The R in GT2871R means it`s a bb turbo. Maybe the disco potato is the right sisze for you.
Posted: Wed Feb 21, 2007 12:21 am
by mud4b
vn15 wrote:mud4b wrote:well i pulled it off today.
the shaft had split into 2. lost some of the turbine compressor wheel,it made it into the intercooler but not out of it. stuffed the cooler though.
it has chewed both the front and rear (not too much on this side) housing out
due to the wheels moving in and out and sideways around 5mm.
so its time to upgrade.. t28 time and new cooler.
I have an RD28T engine in my modified GQ, and bought a new turbo last year, GT2871R, .86AR. Have 12mm plunger in the pump and you need to be able to spin the turbo, very good power from it though, have a big fmic, plenum chamber, 3" dump/zorst, LPG, etc............. around 250hp.
You should go for a ball bearing type rather than bushes, (T28)
or you get too much lag. The R in GT2871R means it`s a bb turbo. Maybe the disco potato is the right sisze for you.
i did see yours in a search..
could i possibly get some more info please.. already had your turbo size..
cant see a way to mount a cooler in the front of the gu due to getting room for the pipes to go through the rad support panel. the rad is huge in these, plus all the ac lines and crap.
mate how did you mount your turbo.. looks like i have to make a adaptor from the 3 bolt flange on the exhaust to a 4 bolt on the turbo..
do you have pics of the plenium chamber?
what is this disco potato, i did see it mentioned in one of the turbos i was looking at on e-bay.
what is the 12mm plunger?
mate totally understand if you dont want to let out your secrets..
thanks mark.
Posted: Wed Feb 21, 2007 9:35 am
by vn15
Posted: Wed Feb 21, 2007 10:40 am
by mud4b
that gq is awsome bud.
so can anyone actually tell me whet a "disco potato" is...
i noticed a mentioning of it under the same circumstances in the toyota section too.
i need to buy a turbo today as i cant afford to have this gu off the road.
thanks mark.
Posted: Wed Feb 21, 2007 10:50 am
by DanielS
Try this link cobber,
there are 2 here both spec'ed different, I wouldnt know which one...
http://www.horsepowerinabox.com/HPIAB2/category12_1.htm
Regrads
Daniels
Posted: Wed Feb 21, 2007 10:58 am
by mud4b
thanks bud.
helped me very good.
Posted: Thu Feb 22, 2007 10:47 pm
by mud4b
well due to not having enough time to mod the gu and not being able to afford having it off the road i purchased a brand spanker gt17 (t25) pissy little std gu turbo from dyanamic turbochargers for the sum of $1590.
it gets there tomorrow..
ever had that feeling that you could have really upgraded for the price..
thats where i am now.
also noticed the fan under the intercooler was not working. it had melted and seized and broke the magnat inside.
so got a new a/m fan.
will let yas know the difference this makes.
Posted: Mon Feb 26, 2007 12:47 pm
by outback_lux
have you got the old turbo, as i desperately need a turbo for a 2.8 turbo troll, or really just the guts and part
Posted: Mon Feb 26, 2007 5:10 pm
by mud4b
outback_lux wrote:have you got the old turbo, as i desperately need a turbo for a 2.8 turbo troll, or really just the guts and part
i do bud but you should really read your reply in your other thread.
mate my old turbo broke the shaft into 2 and wore the bushes away totally, the exhaust wheel is bent, the inlet wheel is stuffed, the front housing is worn where the wheel was grinding along it.
thanks mark.