Originally Posted by SilverMr

Shiv,
Do you need a upgraded fuel pump and injectors to run this type of power safely?

Thanks

Originally Posted by shiv@vishnu

Boost itself wont damage an engine. Detonation is what damages an engine. As long as the car is tuned to not knock, it'll run safely. Tuning a car not to knock is about finding a good combination of boost, ignition advance, fuel and (in the case of the IX) correct MIVEC timing. No one particular variable is important by itself. It's the combination of all of them that makes the engine run well or poorly. On 91oct, we've found ~23psi in the midrange, tapering down to 19-20psi to be just peachy. On 93oct, we do about the same but we manage to get another 1-2 degrees of timing in there well before the onset of knock. On 100oct, we could proabably run that particular turbo as hard as she will run without detonation issues. This would be in the 27-28psi range (peak). It would most certainly taper down substantially as it appraoches redline. Trying to get turbos to hold more boost than they are comfortable supporting efficiently is a sure fire way to run into problems later on.

Shiv

Originally Posted by tranman85

if my car was tuned for 91 octane but i am using 100 octane would that affect performance in anyway?

Originally Posted by tranman85

if my car was tuned for 91 octane but i am using 100 octane would that affect performance in anyway?