Best pulley selection for 93 octane

[mbsvt]

Best pulley selection on 93 octane
I do have 2# & or 4# lower pulleys to use.

03 cobra mmr 1000 5 Liter stroker kit
10.1 CR
Ported heads cammed
Vmp 2.3 egr delete with GT 500 throttle body with matching intake.
60# injectors
Stock exhaust manifolds For Now.
High boost cold air kit with stock maf sensor with mafia

Any thoughts on an upper Pulley Size. for my combo, estimated boost level?
And ignition timing?
Thanks
MBSVT

 

[decipha]

very nice setup should make 325rwhp on engine

@18lbs you should make 650rwhp easily and safely I would not recommend any more on pump gas at that compression if it makes more power than that then its probably too advance and needs the timing backed down a touch

BE ABSOLUTELY SURE your tuner knows its a HIGH COMPRESSION 4v. The 4v engines DO NOT TOLERATE compression at all!!!! Someone with no experience with high compression 4vs specifically could be in for a very bad day.

I have seen naturally aspirated 4v high compression engines in marauders mach1's and cobras detonate at only 16 degrees NATURALLY ASPIRATED.

If I were tuning it Id command 14 degrees at peak torque 0 boost / 0 vac and 8 degrees at peak tq at max boost. 11 degrees or so at WOT above that and if the power isn't there creep it up carefully and slowly reading plugs all the way. Make sure the tuner keys-off at 7k rpm while making the pull to read the plug correctly. Prob best to use cyl 8 as its typically the hottest.

 

[mbsvt]

Is this tune something you can help me with?

 

[decipha]

if u would like yea np

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