what to do now ?

[stroker57]

well things didnt turn out the way i wouldve liked took the truck to the track made one pass and everything went down hill for me ended up blowing my up pipe apart put a hole in the cold side intercooler pipe. I got way to much backpressure so i talked to some people and im trying to decied what to do put a big single like a s475 or put twins the 68mm just wont handle the 300 hybrids i got in now but i have time to think and see how thing go for other trucks getting put away for the winter

 

[Pizza pig]

external wastegate... Have you monitored what your back pressure is first to need it? I know there was a bad batch of bellows for a while, have you talked to craig about it?

What housing and turbine wheel does your charger have? I doubt back pressure if your problem, but again without knowing what it is you cant say its the issue.

Assuming you have the plastic cold side pipe? That 68 puts how way too mcuh pressure to use that plastic piece, you need a no limit or the oem metal cold side pipe.

 

[BlueWaffle]

what turbo is it?

 

[stroker57]

yea i talked to craig about he thinks its back pressure i got a new set of up pipes with different bellow. the turbo is a bullseye double batmo 68/74/91 builds 60psi at wot. dont want to sound dumb but how do you monitore the back pressure ?

 

[patrickke]

I would get a bp gauge

 

[Pizza pig]

I just plumbed in a 100psi boost gauge into a bung I had Matt (Cutting Edge) weld into my divided up pipes when he built them. Using 1/4 inch copper line to the back of the gauge with a soot filter inline to it doesnt reach the gauge. You can monitor it through the OBD2 port as well, just have to subtract barometric pressure (which is around 14ish psi) from absolute ebp.

 

[stroker57]

heres some pic of what happen

 

[Pizza pig]

I dont like those style bellows, I'd redo them with better bellows and get a gauge on it before spending money and pointing fingers. that housing and turbine is a good match for that compressor wheel size.

 

[stroker57]

i got a different style of bellows in these up pipes. i no what you mean hate to spend money i dont have to

 

[strokin6L]

those style bellows that look stock also come in heavy duty.

 

[Pizza pig]

yes, but they still have issues for some reason, which is why I dont like them.

 

[strokin6L]

hmmm.....haven't heard many having issues

 

[Cutting-Edge Diesel]

yes, but they still have issues for some reason, which is why I dont like them.

I have been hearing the same thing. I use the braided out side and interlocking liner ones from vibrant in my up pipes. No problems so far.

 

[stroker57]

the new up pipes have the braided out side but not sure about the interlock. but still think of moving up to a s400 so i have room for bigger injector if i ever decide to go bigger

 

[Pizza pig]

They should be interlocking liners with the stainless braided exterior, a 472 would be a nice match, and pretty much the largest you can go to still be the most street friendly depending on the turbine wheel and exhaust housing.

 

[FaSSt9602]

472 and "street friendly" in the same sentence? oke:

You guys must REALLY have a different perception of "street friendly"! LOL :blitzed:

 

[Pizza pig]

yes, despite a smaller charger but, i can drive my 66 on the street without any smoke if I went with a smaller nozzle . Why is everyone so infatuated with saying you cant drive a big charger on the street?

 

[Mike@MPD]

They are triple breaded liners the old ones have held fine up to 55-60 psi but my quess is back pressure is a little high lol

 

[Ross@Flyindiesel]

good gosh! thats some serious heat and bp. never seen up pipes like that before but then again never seen hybrids run with that style charger either

 

[6.0 p-stroke]

Here's one I blew up a long time ago, that was a vibrant bellow. I built another set of up pipes with new vibrant bellows and haven't had a problem since, it could be that I'm not running the 430s anymore too LOL


It'd probably be a good idea to put a bp gauge on and see what its doing.