is anyone using the gredy profec spec-II boost controller? i just got mine and im wondering about what percent to set it at for my high boost to be 21-22 psi...?

 

it all depends on what mods you have but then again you have a 9. Mine is at 43% with a full exhaust wityh o2, intake and I/C pipes. I would start yours at the low 30's and go from there. Keep in about the weather differences.

 

o sorry hks intake, downpipe, and exhaust

 

 

ok next question.....what is the highest but still safe amount of boost to run on a stock fuel pump(i know, im changing it next week) but until then is 21-22 ok?

 

thanks for all the help....

 

We have a wonderful search feature where all of your questions will be answered. Check it out.

I will save you some trouble though. The fuel pump in the IX is better then the fuel pump in the VIII (supposedly). I would be less concerned with getting a fuel pump and more concerned with getting the car properly tuned. If you plan on doing more modification, then I suggest getting the fuel pump and THEN getting the tune.

Topics of safe boost levels for stock parts are covered a million times here. It's also debated quite often. If you're running 91 octane I wouldn't suggest higher then stock boost levels, if you're running 93, maybe you could get away with an extra PSI or so, but again, I don't know because the car isn't properly tuned.

IMO stay at stock boost levels until the car is tuned.

 

Why couldn't you jsut answer the damn question....than type all of that.

Dude shouldn't go about 20psi on stock pump, pretty sure.

 

i did the search but like you said it has been debated several times with no real clear answer thats why i ask straight forward...what is safe? i plan on getting a pump next week and a dyno tune asap

 

To the above 2 posters, I did answer both questions. On 91 octane "I" personally wouldn't go above stock boost pressures, which is around 20 without a tune, on 93 I wouldn't go further then 21-22 without a tune.

The tune is key, but I've already answered that.