For those with the bolt on sp61gt..

[grimreaper]

i love the 61gt, only on the wastegated 14 psi while i get used to the car for now. ive got a few pics of it mounted and all with and with out heat shields, make sure to put some sort of heat shield over it! better yet get it coated and then a turbo blanket! oil lines to it look very basic and easy to install though. shouldnt be anything major like a custom mount or something like that.

on a side note it does seem to loose a bit on the very top end (6000rpms). although id think a good ported exhaust mani would help this out. great street setup, tons of midrange power with out the need to go wot, although wot is fun too

 

[Nick M]

Aftermarket companies not putting a cooler circuit on the turbo, does not indicate it isn't needed or better.

 

[Toy-Rific]

I've had mine blocked off using a SP61GT turbo for the last 5000 miles or so...city & highway driving. Done a few hard runs too...temp gauge never goes above the 4 O'clock position...the motor has never over heated, even with it over 100 deg outside.

The turbo coolant lines is a simple loop...the system does not depend on it for anything else. Blocking the water feeds off will have no effect on the car overheating or not. In fact, since the heat from the turbo is no longer dumping heat into the coolant, it takes that load off the coolant system.

What a lot of crap this is! If you want your car to have less strain on the cooling system, you just block the water off in your turbo-STUPID,STUPID, STUPID. You run a center section with water and oil or you run with out. They have different cooling chambers. The oil only uses only one large internal cooling chamber, while the oil and water unit has two chambers. When you block off the water cooling you just reduced the area in half and that is not doing your turbo any good.
If you are so concerned about your cooling system getting too hot , than why not worry about you oil getting too hot.
Use either one you want, they both work. Just use it right.
Greg
Lipp/SS

 

[dumbo]

black beauty, you've prolly allready made up your mind, but personally i'd loop them

but main reason for post is i'm from abby, man what a small world, i'm doing my na-t conversion in like 6 days, if all goes well i'll be driving down in about less than a month(if the mountains aren't snow covered by then) we otta meet up. maybe a mini meet for the local lower mainland guys+gals.

 

[grimreaper]

What a lot of crap this is! If you want your car to have less strain on the cooling system, you just block the water off in your turbo-STUPID,STUPID, STUPID. You run a center section with water and oil or you run with out. They have different cooling chambers. The oil only uses only one large internal cooling chamber, while the oil and water unit has two chambers. When you block off the water cooling you just reduced the area in half and that is not doing your turbo any good.
If you are so concerned about your cooling system getting too hot , than why not worry about you oil getting too hot.
Use either one you want, they both work. Just use it right.
Greg
Lipp/SS

i think you miss understood what was being addressed, the sp61gt is oil cooled only, the 61gtbb is water/oil. hence no body is removing the water circuit unless the turbo has no chamber for it.

 

[Doward]

Yeah, Toy-Rific, you misunderstood jdub. Way to jump down his throat

 

[MKIIINA]

holy old thread batman... get a boss, this is coming from someone who has have both and went through 6 sp61gts in a year and only 1 boss in over 2.... do it right and do it once..

 

[jdub]

What a lot of crap this is! If you want your car to have less strain on the cooling system, you just block the water off in your turbo-STUPID,STUPID, STUPID. You run a center section with water and oil or you run with out. They have different cooling chambers. The oil only uses only one large internal cooling chamber, while the oil and water unit has two chambers. When you block off the water cooling you just reduced the area in half and that is not doing your turbo any good.
If you are so concerned about your cooling system getting too hot , than why not worry about you oil getting too hot.
Use either one you want, they both work. Just use it right.
Greg
Lipp/SS

What in the heck you talking about Greg?

My SP61GT turbo is oil cooled only...I didn't block off the coolant "to have less strain on the cooling system". There is no provision for coolant on the turbo at all. This is what I did to seal off the coolant lines form the motor.

If there is no coolant provision to start with, there is no turbo heat load...common sense I'd say.

I did find the stock turbo coolant lines serve as a bypass that keeps pressure down behind the thermostat. When I blocked them off, I would get the random temp spike...the thermostat was sticking closed. I cut the jiggle valve off the stat and it never happened again.