to much boost?

[Hookemupman]

I just install #11 tst plate and slid it all the way forward when installing, the truck runs great but boost seems to be about 40psi is this going to hurt anything?The truck is a 98 manuel trans if you need to know. Thanks Jason

 

[BigBadDodge]

I hope not I get 43 lbs when I get on it.

 

[illflem]

40 psi is about the max that does any good, more is just a waste. The intercooler is only rated to 50 psi.

 

[Hookemupman]

So if i slid the plate back a bit will the boost go down or is there a way to adjust the boost to lower it without affecting egts?The truck is almost stock accept for #11 plate,kn air filter,walker muffler with no cat,so is it the plate being all the way forward causing the higher boost. Thanks Jason

 

[Ted Jannetty]

I would suggest you limit boost to about 34 lbs. anything higher creates unwanted heat and pushes the turbo to it's critical shaft rpm.



If you have a bleed orifice you can back out the allen screw to lower peak boost.



If not you should check to make sure the diaphram in the waste gate doesn't have a hole in it keeping it from opening.

 

[Cooker]

Ted would know better than me, but I thought 36 was about as high as you want to go with an HX35 to keep it in its' efficiency map. I think 40 is a little too much.

 

[LarryB]

What's a guy supposed to do with a 16cm no wastegate housing? Maybe I can lower my egt a smidge if I can bring the boost down somehow but I think I'm SOL with this housing.



I Know, I need some manifold leaks. Anyone have a leak they don't want?