IX MR, roundabouts on PUMP gas(93) what is the most HP that can be made? or has been seen? on the stock block and head with just headstuds and a MLS headgasket?

is 550-600 possible?

 

hell no, not 550.


gotta built themotor after 500 or expect boom booom boooooom!

 

It's been done on race fuel.

 

I don't see how its possible to run over 500whp on 93. A few of the Buschur cars have done it and frankly it blows me away.

Right now I am running all BR parts on my car. My engine is stock at the moment other than 280 cams and arp head studs. I have the hta 35R, 1000cc injectors, and an aem with tons of supporting mods. On 28psi, a conservative tune, and 100% alky I ran 524whp on my viii. With out the alky I can't imagine I would have been able to reach 500 without running lean with the boost that high imo.

Im in the process of building my engine with a race head. It will be interesting to see if I can reach 550whp with 93 and alky. (The only two things left that will be stock in my set up, for the time being, are the throttle body and intake manifold)

 

thanks for the input guys. 550 here i come