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Best Nistune/e85 Tuner In Seq?


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Hi Guys,

I recently moved from SA and I need to find a tuner that is trustworthy and in particular; knowledgeable with Nistune (RB20 ECU running a RB25DET, EPROM program/new features etc.) E85 etc.

I live in Springfield and work near Beenleigh. Willing to travel to get the best result.

Thanks in advance.

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I currently am running 100% E85. But I'm thinking it would be more convenient to go flex in the near future. The United Race Blend E85 is another curveball (which will depend on price and them not running out all the time).

My car has been tuned without VCT. So the first thing I need is a tuner to tweak the tune with VCT on and then I can set the window switch at the optimal cross over. It's so doughy down low as you can imagine.

To compound matters my exhaust manifold is slightly cracked. So I’ll probably get a 6boost (high mount) so new pipe work and maybe turbo? Waste gate? The list goes on and never stops ;)

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Got my R32 gtr with nistune done on E85 at EFI, they seem to have done a great job and the car runs well. So plus 1 for EFI I guess.

The 107 octane race fuel variant from united seems interesting, though I don't think i'd go for it as it'd limit the areas you could refuel way to much for a street car I think. Also because i'm getting valve float and I wouldn't really gain much more top end with it.

That being said, would be great for more dedicated track cars, or in a flex setup if you were content to spend a lot of your time on 98.

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What switch do you have for VCT with RB20 ECU? Something external or a tweak?

If you want a good starting point then turn VCT on at 1200rpm and off at 4800rpm. It might not be perfect but will be much better than what you have and probably a bees dick off optimal.

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  • 8 months later...

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