skunkworks

i am going to turn the boost up tomorrow. what is the most boost you would recommend on pump gas 92 octane.

i have all the supporting mods stand alone wide band hybrid stage 4 etc.

i am running 14 psi right now.

i would like to try 20 psi



thanks

j9fd3s

depends on a lot of stuff.



what octane? we've got 87-89-91 and 100 at the pump here, anything over 12psi on 91 is just bad news.



how well is it tuned? more boost you run the more important all the little stuff becomes



going right from 14 to 20, imo isnt a great idea, maybe go 16, 18 and see how it is

RONIN FC

I could never understand this 20psi goal i keep hearing of. People talk of psi like its 1/4 mile times.



How about making the most power the engine can make, safely?

skunkworks

i am doing the tuning via wideband and haltech

after 7 psi i am running 12 deg ignition advance and an 11.2 to 1 A/F ratio.

my gas is 92 octane



thanks for your input

j9fd3s

i wouldnt go too much over 12psi without some super duper intercooling/water injection.



well 92... maybe a little more

skunkworks

i have a huge fmic

1Revvin7

What heat range spark plugs? If you haven't already go a few steps colder. As mike said, take it in steps, don't do a 6psi jump. What compression rotors also? Unfortuneatly you are looking for trouble, not because of the octane, but beacuse you are choking the engine on that turbine side of the turbo...



Nice users name btw, I need to get some more T-shirts from Lockheed.

skunkworks

i am running the stock plugs. where can i get some colder plugs ? NGK?

s4 rotors 3 mil seals.

what do you mean choking the engine? is my turbo not allowing enough exhaust flow? i believe it has been clipped. it is a bnr stage 4.

what are the repercussions of choking my engine



good info thanks

RONIN FC

High EGT's and melted apexes.

1Revvin7

You can't pack 20psi of **** in a 5 psi bag. The exhaust side of a stock turbo, clipped or not, is too small. Choking the exhaust leads to detonation. Get a full to4.