Well about 2k miles ago i supercharged my car..

9.5 Pully
Forge 007 BPV
Hks Hi Power.

Aem wideband runs about 11.4-11.6 6K WOT


I run 93 Octane. And My last full tank was of CAM2 110 Octane.

Stock trd tune.




Well durring the install after removing the header i noticed the Left cylinder(looking at the motor) I notice the valves were noticably whiter on that one cylinder.

Pulling the spark plugs they appreared to all be the same

Its also the last injector on the fuel rail.


Car runs flawless pulls very hard. Idles perfect 22-20 vacum idle.


It kinda seemed like starting from Left right, White, dirty white, White, Dirty white.



Heres a pic of the headers, Notice the last cylinder has some white residue on it...

 

So whats the problem chief? Have you not seen what race fuel or other high octane fuel does? Take a look at your exhaust tip, Im willing to wager that its got that white powder on it too.

 

have you tried a compression check, you might be runnng lean on just cylinder due to a comprimised gasket.

 

i know what race gas does... But why on only one cylinder?

 

looks like all to me.....

 

A better question would be, why are you running 110 octane? 9.6:1 + 9.5lbs does NOT need 110 octane.

 

Yeah no need to run that man... Seriously, stop wasting your money on that.

 

Locally None of the stations had 93...


So whenu have a choice of 86 octane or 110...


110 4TW


hmm

 

that wouldve been my choice.