Nistune Forums

Looks about right. I've seen massive variations in how much timing E85 engines want over standard. Some will easily take 10 degrees - I go up 2 degrees at once and the power just keeps going up with ever 2 degree increment. Yet other engines for no apparent reason want little more timing than they d...

Unfortunately not. Wish it did have EGT. It would have told the story straight away I suspect. I'm gonna get him to add a fitting to the dump next time it's apart. Then I can just drop my probe in and monitor EGT on my meter. Be nice to log them in NIStune but I haven't made a thermocouple interface...

That's a distinct possibility. It was definitely rich. About 0.7 Lambda from memory. So it may have been a combination of things...

PL

Here ya go:

Just thought I'd share an experience I had over the last week. It's been a big week. Turned out well in the end but I'm a bit ragged now.. Background. Built S14 engine in track car. I've been tuning this one for years. Started as stock S14 engine and slowly worked up to his current build. First big ...

I did another S14 track car last week (74F00 + 1000cc inj, Z32 AFM on E85) and just left O2 sensing disabled (in the flags section) and turned all cells off in the fuel maps. Worked perfectly. I guess it's hard for it to hold closed loop when it never goes closed loop... Wish I could say the same ab...

Yeah you just get a 1/4W 470 or 560Kohm resistor from Jaycar, unplug the knock sensor at the plug on top of the inlet manifold and fit the resistor across the terminals. This is normally done if somebody has a dead/troublesome knock sensor that's causing a fault code to be raised and they don't wann...

Sounds like the problems run deeper than this, but were you aware that CA18's switch from sequential to batch fire when they come on boost? At which point injection time halves.

Pete L

Make sure you have no fault codes to start with. Beyond that it sounds like you have an overly sensitive knock sensor. Matt is digging more parameters out all the time but at this stage we don't have a way of adjusting knock sensor sensitivity as such. You could play around and try putting high valu...

It's assumed that the table has 7 degrees in it to increase EGT's and get cat to running temperature quickly to help pass emissions. I usually fill it with 20's.

PL

You could do that with your current license but you'd have to get the base image changed in the board. The base image is programmed when we ship the boards and can't be changed by the end user unless you have a NIStune Base Image Programmer (BIP). Usually it's only the bigger tuners and dealers/dist...

I've done 275rwkw (Dyno Dynamics) (around 460hp at crank) with 740's on an E85 powered S13 SR. So you could add about 20% to that for a non-ethanol fueled engine.

PL

I had a quick play with some ID2000's on an RB25 recently. Unfortunately the customer had already fitted the AFM (800hp HPX) in totally the wrong place and the workshop spent a lot of time trying to make that work. It was never gonna happen and in the end they gave up and fitted a Haltech. The AFM w...

Here are those graphs. S14 with T28. It also had bigger injectors and AFM but they really don't matter for what we're looking at here.

PL

That's the idea!