Hey guys I'm thinking about change my pulley from a 3.8 to a 3.2 pulley on my sos system but was wondering if I can just run 91 octane gas with a 340 fuel pump and ID1000cc injectors??? Would I need to upgrade any of the fuel system to accommodate higher boost??? I already have a 3 bar map sensor... Oh and 1 more thing, can I run 3.0 pulley without it slipping with the same fuel system???

 

I really wouldn't recommend it. E85 is the best option, otherwise you're pulling timing like a bitch to accommodate for that sucky fuel.

I think there may be a few people that are running 93 on a 3.2". I am stepping down from a 3.4" to a 3.2" and I'm just gonna run E85 mainly with 98 RON (93) as a backup.

(Same fuel setup as yours btw)

 

Interested in hearing more responses to this too.

 

^^^^^
Same here I plan on going 3.2 or smaller next year im on 93

 

I want to do the same. 3.8 to 3.2. e-85 91 flex fuel set up with kpro 4.
might try an E-tune. experienced west coast tuners welcome to contact

 

Damn so the smallest pulley would be 3.4???? If I'm just running 91 octane???

 

Why not just run 98?

 

Your 98 RON is equivalent to our 93 octane ((R+M)/2)

 

Yepp! But he was talking about 91octane in the first post

 

Yepp! But he was talking about 91octane in the first post
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Some states here don't get 93. No idea why though