[95TargaSupra]

Hey guys I'm trying to find out how close is to close for the intercooler pipe when it enters the throttle body on a na-t supra. Right now with the manifold I have and the turbo I've got about 1/4 of a inch gap between the turbo exhaust housing and the intercooler pipe entering the throttle body. Is this to close considering how much heat the housing produces next to a aluminum pipe. And will it make a significant difference in the air temp entering the engine.

 

[Mr Ree NZ]

I have melted 3 couplers since I have been na-t.

Until you can afford to go to an FFIM, you just have to accept it.

You can buy nomex couplers to help it last longer, you can wrap it in heatwrap, you can put a heat shield between them, you can ceramic coat the turbine, you can get the manifolds turbo flange cut off and shorten all the runners so it sits lower.

Try and measure up the intercooler piping so it basically butts up against the throttle body, that way you can cut your silicone coupler far shorter than it originally was and that way its less inclined to melt.

 

[GodeepGTS11]

wouldnt a turbo blanket be another solution?

 

[supraboy6]

i just installed a blanket on my turbo and it made a huge diffrence, the pipe still gets a bit warm but its better then having to replace your couplers

 

[Mr Ree NZ]

It depends how much room you have though. Not all manifolds are built the same so if you happen to have one that sits 5mm higher than the next guys, then there simply isnt room. If you can fit it though, then its a far better option than melting couplers every track day.

I have a brand new garrett beanie sitting in my office, waiting for the day I finally get an FFIM lol.

 

[Juhanis]

people seem to have good luck with that clearance with the BL manifold it seems. i dont know first hand, but i've asked a few people that i've been curious with that about. my turbo's hotside sits WAY too high for the stock throttle body, and it would not even bolt on if i still had it. i swapped to a ford 4.6 liter throttle body which is about 1/2 as long and then i run a 90degree coupler off of that... best part is, i have more clearance, and its almost the same exact diameter as the stock one. i checked both with a digital micrometer, but ofcourse i dont remember exactly what the measurement was. oh well, it works nicely, and uses all of the original 2jzge throttle body bolt locations (after some modification).