how much boost can a stock D15 hold safly to be trust worthy of a cummuter car.

 

10 pounds

 

i know the car wont go for 3 months on 10 pounds with out blowing up.

 

as a cumeater car I'd say 16psi minimum. and how much can it hold shaftly? probably 28psi.

 

your saying a stock D15 with 183K miles on it and the tranny will last more then a year redlining it sometimes and driving more then 3k miles a month with 10 pounds if this is true.. then why the trubo a B16? and be happy about it.

why i said it wont becouase i all i hear is stock d15's blowing up after a while with only 8 pounds.

 

what a tool.
why you putting words in his mouth.
you ask a question and you think you know the answer already.
what kind of setup do you have?
like fsu said, there are too many variables.

 

stock d15 only thing i done to the engine is air filter and nkg spark plug wires and spark plugs.

 

Seriously, you need to give more info. For instance, what turbo? Like what kind of horsepower are looking to make? 10 psi on one turbo is not the same as 10 psi on another. 6 psi on one turbo may make more power than 12 psi on another. You need to be thinking more about power levels than an amount of boost. And to answer your question, in my opinion I would stay under the 200 whp level if you want it to last. Shoot for around 175 whp to play it safe. It seems like you are very concerned about reliability. Make sure it is tuned well and it will last. Your car should be plenty quick. And also do an mpfi conversion if you haven't yet. If its not quick enough take a little risk and turn the boost up a bit.

 

Boost on a little rhb5 is totally different than a big t3 so psi is just a general term.