Dumb Question

...please don't treat me like I am at tuners! /ubbthreads/images/graemlins/grin.gif

It is now my understanding that I need a pre-throttle body source for my MBC and External Wastegate and that teeing into my BOV can cause problems.

Is the J-Pipe a source of a "pre-throttle" body boost?

I have been looking at turbo piping for months and without doing any reading (I hate reading) I have concluded that turbo/boost output goes into the J-Pipe and then into the intercooler, from the intercooler it bascially just goes into the throttle body.

Do I have it more or less? Is the J-Pipe a source of pre-throttle body boost?

Thanks!

 

[turbowop]

Yes, the J-pipe will work. I have nipples on my upper intercooler pipe (after the intercooler, before the throttle body) for my MBC and wastegate.

Since the BOV gets its source from the intake manifold, teeing into it would essentially be using the same source. With a bleeder type MBC, this can create a small vacuum leak. MBC's don't need to see vacuum anyway, so sourcing boost before the throttle body is a better idea for them, IMO.

 

Thanks again.

 

Well I messed up (I think). I drilled a hole for a 1/4 NPT to 1/4 barb fitting in the j-pipe about 8 inches from the turbo. I drilled it a little bit too big. I should have been more patient. So now it is sitting in JB-Weld.

I think that JB Weld can handle the pressure, but I am not so sure about the heat coming off of the turbo like that.

Any ideas? I don't like taking my car to get things welded. I always get ripped off for some reason!

Thanks

 

[turbowop]

You could put in a bigger fitting and then step it down to the size you originally planned on.

 

Was thinking about that...I hate pulling that crappy J-Pipe off though...difficult to get at that bottom bolt.

I guess I'll just wait to see if it flies off lol! I'll carry some muffler mender with me in case.

Thanks

 

[SouthCaliVR4]

probably not the best thing to drill in place, where did all the filings end up? turbo & intake tract, just waiting to damage some stuff.

 

I didn't drill it in place. I drilled it off the car. I just don't want to have to take it off to drill it again. I figure I will just take the risk of losing the fitting. I am betting that JB weld won't be able to handle the heat. I am sure it can handle the boost.