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Hi Jim,

I find these results amazing, 20awkw is a substantial increase!

I have booked my final tune with crd for next week...I will post my results here for everyones perusal.

Regards,

Marko.

Hey Guys,

Here is dyno sheet of a R33 GTR with a new engine we built with R34 N1 turbochargers with before and after of 98 and 100 octane shell fuel.

Car is used for circuit only.

CRD

  • 2 weeks later...
ive had my safc tuned for 98 octane.. if i use this extreme stuff would i REALLY need a retune?

Only if you rev the engine out, or value your pistons' life spans.

The fact that higher RON level means you can run more timing isn't as important for the retune, but the fact that its oxygenated means your engine will run lean comparable to your 98RON tune is why your current setup may not be good for the engine.

If you've got it tuned close to the edge on 0% ethanol fuel, the E5 Optimax Extreme might push it to a point where you get detonation.

This is big I actually calculated 41 extra four wkw for extra 2 octane points. Must have had more timing and maybe more boost added to do this?

We did same on S15 yesterday and made almost 20rwkw with a bit more boost and timing.

There is a question mark with the Ethanol in it effecting injector seals as well as early model injector design and electrolysis. But hey I am going to use it and guess it should be ok or they would not release it, or are we all test pilots?

well, i had a sip of it yesterday and it tastes no where near as good as bp ultimate. true.

It certainly looks like a good option for race use. Much cheaper than the options from elf etc.

well, i had a sip of it yesterday and it tastes no where near as good as bp ultimate. true.

It certainly looks like a good option for race use. Much cheaper than the options from elf etc.

full tune and comparo to C16 coming soon....keep you posted

full tune and comparo to C16 coming soon....keep you posted

I used it in my Slot Car at Wakefield yesterday and no problems and car felt strong all day.

I've filled half a tank yesty.... just a question tho... I have a stock ecu.. how do i reset it... and.. do i need to?

Reset does jack....

I had mine on the dyno ~3years ago, did a few little tests - pod vs stock airbox, ecu reset. All showed a zero increase in power anywhere in the rpm.

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