[cusco-awd]

Just wondering, My car is all stock with heads that have been resurfaced. Its a 00 so stock compression is 10:1.

 

[thegrocerygettr]

there is no reason to run any higher than 87. That is what your car is designed for.

 

[Skidd]

Yes.. stay with 87. It is what your ECU it tuned for.

 

[01rs25]

I would say run 87 unless of course you had a fair amount of the heads resurfaced. More the .005 and I would be tempted to begin to run 89 because of the bump in compression.

 

[RallyMe555]

Is it really a bad thing if I have been putting 'Super' in my RS? Like 89 or w/e it is idk.

 

[Skidd]

Bad? Not really no... but it's costing you more money for not real good reason.

 

[2slo4u]

(<--this guy uses 93, what an idiot)

I'm running 93, don't want any detonation considering the mileage on my engine. I'm doing anything I can to baby it until the swap. My main bearings already have a lot of play that allows the crankshaft to move front to back, from a previous owner using a stiff clutch setup.

 

[Jake]

the ecu can add a tad bit more timing with 93, but thats if you have a healthy engine.
I noticed about 2-4* timing difference from 87-93 under similar conditions.

 

[bigstrusk]

I run 93 octane for autoX just for ease of mind as I'm @ WOT and bouncing off the limiter.

 

[ride4life32]

I run 94, but im swapped, I used to run 87 in my 99RS all the time with no problems.