Im installing a Forge UNOS MBC on my IX and am curious at to what would be a safe boost level to run. I am adding a Espelir downpipe to match the catback and rally cat soon. Getting refleshed in early Sept when Dynoflash comes to cali.

Not looking to push anything at all, just want a safe level to run at till then. Or if its a bad idea at all I will hold off on the MBC till I get the rest of the mods.

Thanks!

 

I would say 20-19 psi on stock IX, anything higher you would need 93 or higher octane, since am in Cali 91 oct I run 20 psi

 

no its not a bad idea to get a MBC..if you have 93 you can run 20-21 lbs

 

Why not run it at the stock level until you get tuned? That way you wont have to worry about anything going wrong. Have you thought about getting a Vishnu flash? He's shown very good results running that garbage 91 you guys have in Cali. He made 270hp @ the wheels on a Dyno Dynamics running 91 octane on a stock car. With exhaust and the flash you'd be right at 300 to the wheels on his DD. If im not mistaken Shiv was running 23-24 psi on 91 octane and showing no signs of knock.

 

Id safe to keep it safe without the tune keep it at 21-22psi max. Once you get it tuned, you can have it up to 23-24 as most seem to be running that on 91/93.

 

I'd say 21-22 on 93

 

Hey man I didn't know Al was a doctor.

It's reflashed.

I agree with all who suggest staying around stock until tuned.

 

Stock or plus 1 psi or 2 is fine. Boost falls off near redline anyway.

 

Keep it at 20-21psi until the custom tune, then set it during the tune wherever you want it and where is safe based on the tune itself.