Garrett GT series Turbos
#152
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Duke,
I don't think it's a matter of being scared. It's more to
do with finances I guess. Most of us aren't racing
teams with big buget. No body would wants to make
the mistake of buying the wrong thing. Besides most
are street driven cars so we have different requirements.
Regards to Chris Pack's turbo, I strongly suppect that
it's a GT turbo from HKS.
I don't think it's a matter of being scared. It's more to
do with finances I guess. Most of us aren't racing
teams with big buget. No body would wants to make
the mistake of buying the wrong thing. Besides most
are street driven cars so we have different requirements.
Regards to Chris Pack's turbo, I strongly suppect that
it's a GT turbo from HKS.
#153
Instructor
Join Date: Apr 2002
Location: Caledon East Ontario
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Does anyone know how a .58A/R T4 turbine compares with the .82A/R GT3071R turbine? Is the sizing close? I understand they are both 3" outlets, and that the .58 A/R T4 is the largest turbine you want on the 2.5L.
Thanks,
Andrew Wojteczko
Thanks,
Andrew Wojteczko
#154
Burning Brakes
Join Date: Dec 2002
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My Swiss is using a 58AR on turbine side not bad full boost at 4000rpm. He tried a 70AR found it to big for his needs, much more lag.Coming out of corners way to slow to spool.
#158
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The T4 is a huge mother. Myswiss's car is
ex Tony G's. So, Andrew you can judge from
there why the AR's went down. My suggestion
to you would be to go down to the turbo shop
& do a physical examination & make your final
choice. I learned alot by visiting turbo shops.
If my memory serves me correct, the .82 is not
that big but the problem is that our cars being
4 cylinders have a longer time frame between
each cylinders power stroke as compared to a
six cylinder engine like the Nissan Skyline or
Mazda RX7 for that matter.
Exhaust pulse does determine boost threshold.
Even if yours is strickly a track car it is still a
better decision to go with good boost threshold
over unltimate HP. You decide.
ex Tony G's. So, Andrew you can judge from
there why the AR's went down. My suggestion
to you would be to go down to the turbo shop
& do a physical examination & make your final
choice. I learned alot by visiting turbo shops.
If my memory serves me correct, the .82 is not
that big but the problem is that our cars being
4 cylinders have a longer time frame between
each cylinders power stroke as compared to a
six cylinder engine like the Nissan Skyline or
Mazda RX7 for that matter.
Exhaust pulse does determine boost threshold.
Even if yours is strickly a track car it is still a
better decision to go with good boost threshold
over unltimate HP. You decide.
#159
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Andrew,
Nice car man, really like the dash and everything else in that race car.
Food luck with the project.
One thing is for sure, its easyer to change the housing if you don't like it. Then buying a new turbo. So go with what you feel will work. And change the housing later.
Oh wait its true, with the .63 it 2-1/2'' and the .82 is 3''. So if you change housing later the downpipe must be modified.
I still say got with the .63. I don't think you will loose that much top end.
Specially that you don't really want your max HP to be at redline.
I feel its better to have max hp 500 rpm from the redline. then right on it.
Nice car man, really like the dash and everything else in that race car.
Food luck with the project.
One thing is for sure, its easyer to change the housing if you don't like it. Then buying a new turbo. So go with what you feel will work. And change the housing later.
Oh wait its true, with the .63 it 2-1/2'' and the .82 is 3''. So if you change housing later the downpipe must be modified.
I still say got with the .63. I don't think you will loose that much top end.
Specially that you don't really want your max HP to be at redline.
I feel its better to have max hp 500 rpm from the redline. then right on it.
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#160
Three Wheelin'
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friend of a friend has a custom gt35 that im going to take a look at tonight. i guess it has billet 35 housing and gt40 insides. he says the turbo is made for a 2.0l to 6.0l engine and has quick spool(whatever that is). the engine i would put it on is 2.5l darton sleeves and wiseco pistons. sfr stage 2 header and custom intake and custom head are in the near future. does this turbo sound to big? i might pick it up anyways if the price is right
#162
Hey Man
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friend of a friend has a custom gt35 that im going to take a look at tonight. i guess it has billet 35 housing and gt40 insides. he says the turbo is made for a 2.0l to 6.0l engine and has quick spool(whatever that is). the engine i would put it on is 2.5l darton sleeves and wiseco pistons. sfr stage 2 header and custom intake and custom head are in the near future. does this turbo sound to big? i might pick it up anyways if the price is right
Garrett on my 6.0L liter truck is freaking huge compared to my Garrett T3/T4R. That's a pretty wide displacement range and it's hard to believe it would perform efficiently at all points in between.
#165
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I recently installed a Garrett stage v turbo (#8 hotside) and now I am getting smoke out the exhaust. Is it because I am using the stock oil feed line on top? Do I need to modify it by dropping down to a smaller diameter line in order to reduce the oil flow so as not to flood it? Did the stock k26 turbos have reducers built in them from the factory? Does the after-market Garrett only need oil to lubricate it and not to cool it? And if so, is that the reason for the excessive amount of oil and the need to drop down to a smaller hose line? thanks for any help.