max supercharger PSI?

[ironmedic]

hey guys what would be the max/safe PSI i can run on my DOHC engine? im working on getting an ATI Procharger but i dont want to over-boost the engine and shorten its life!

 

[Snarf]

About 6-8 lbs. IF you get a good tune! Non forged bottom ends are very fragile and will go out the door pronto if you dont have an excellent tune.

 

[ironmedic]

i take it nothing in our engine is forged then? i just bought this car and i only know 5.0's right now
i was gonna boost in the 6-8psi range to be safe.

 

[54life]

your talking the intercooled version right? intercooled you can run about 11 psi with a good tune and high octane fuel

 

[ironmedic]

yeah i meant to add that i wanted an intercooler. i plan on running around 92 octane gas (pump gas) so i will probably stick around 7-9psi with an intercooler.

 

[COBRA90GT]

Correct, 96-01 snakes came with the "hypercraptic" stuff (sans the forged cranks)...they don't tend to fare too well once you throw 8 lbs+ or so at the engine. There's a lot of variables involved, of course - just do your research beforehand!
There isn't a "magical number" by any means, because even with a safe dyno tune, people have had problems (read: rebuild w/ forged internals was inevitable).

I wouldn't imagine you having any real issues with 7 to 9 pounds of intercooled boost, but make sure it is tuned properly (and keep a "rainy day" account, just in case you do need a forged rebuild later on down the road)!

 

[Tat98Cobra]

I was playing with fire I know.... - but i ran the hell out of my 98 with 15lbs of D1SC boost
All in the tune

peace

 

[ironmedic]

wow thats insane LOL! your motor must have been screaming for help with 15lbs of boost!

 

[Trumps01Cobra]

My 01 was short lived at 8psi on dyno. Lucky number 8 piston was shot. GL on yours.