Looking For A E85 Map For A R32 Gtr Nistune

[stpleb]

Looking for a E85 map for an R32 GTR running Nistune.

[Piggaz]

Seriously?

Take it to a tuner and start from scratch. How does anyone know what your setup is.

Injector size, comp ratio, turbo(s), AFM size.

IBTL!

[GTSBoy]

Or, just randomly add more fuel and timing at each cell and be happy.

[Ben C34]

Wow

[Mick_o]

Dude seriously you expect to come on the internet and get somebodies map that they paid a tuner $600-$1000 for nothing?

[stpleb]

Only tuner is a few hours drive away. Just trying to get my car on the road till I can make the trip.

[stpleb]

Once I get it dyno tuned. I'll gladly share my map to help a fellow GTR owner. Not everyone is a D-Bag.

[stpleb]

Once I get it dyno tuned. I'll gladly share my map to help a fellow GTR owner. Not everyone is a D-Bag.

[stpleb]

Once I get it dyno tuned. I'll gladly share my map to help a fellow GTR owner. Not everyone is a D-Bag. Plus I'm in the US, so we've only just been able to get the 1989 R32 since Jan. It's almost impossible finding someone familiar with them.

[GTSBoy]

OK, I'll play.

What AFM? What injectors? What fuel pressure? What are you going to do if someone has a bin file for RB26 on E85 but has a completely different setup?

[stpleb]

I have z32 mafs, 1000cc injectors, 450/lph fuel pump, tomei FPR, R34 N1 turbos. If I can get a decent e85 base map I can street tune for now until I can get to a dyno with a tuner familiar with nistune.

[GTSBoy]

Well here's the deal. I'll assume you have the software and the license, because if you don't you're not being forward thinking enough. On that basis, work out the K factor for the bigger injectors and the AFM, add 30% for E85, don't touch the timing. Fiddle the K factor (and the injector latency) until you get it to start and idle. Ideally check the mixtures at a light cruise with a wideband. Then drive it really gently to the tuner.

You will NEVER get a pre-done tune that you can just load up and drive merrily off to the tuner on. At best, even if beautifully mapped by the world's best 26 tuner, it will as like as not never even start unless you can adjust the basic scaling values yourself.

[Ben C34]

Exactly.

Not sharing a map doesn't make someone a d-bag. It goes to show they understand blindly sharing a map isn't actually helpful.

[Badgaz]

basic maps for basic bolt on mods ....sure.....but for the levels of modifications there i'd say GTSboy is on the money.

[stpleb]

Good advice GTSboy. I appreciate it. What's the easiest way to increase the whole map by 30%, I'm still new to nistune.

[GTSBoy]

Download the Nistune tuning guide pdf from their website. You're looking for the sections on how to recalculate k to account for both AFM changes and also injector changes. You need to read and understand that stuff, as if you were going to do it yourself, even though there is a built in function in Nistune (software) to do it for you nowadays. The reason you need to know is that you will probably get Nistune (software) to do it for you for the physical changes, but you will need to know how to then mod that number to account for E85 (ie adding that 30% extra fuel).

Short answer, you make k 30% bigger just to account for the fuel change.

If I were you, I would definitely read the Nistune forums also, with respect to looking for specific instances where people are just converting to E85. There's probably a few extra tidbits hidden in there about what extra things you will need to do and which extra things you might do won't help. That sort of thing.

[zebra]

The yanks are very good at sharing maps...I have a good starting point for my haltech due to that

[stpleb]

Thanks that info is awesome and just what I was looking for. There's only one nistune tuner in the entire state of Texas so most help I get is from the GTRCanada forums. Since there are only about 2 or 3 E85 stations in Canada, there is not much help for tuning for it.