Nistune Compactibility With Tomei Cams

[whitneybra]

So

I own a manual 34GTT and im looking at installing tomei cams ether type B or A. My tuner has advised me they might have problems with idel due to the fact

they can't change some settings on the nistune. Which is leading me to get the type A as they are alightly smaller.

So is there anyone out there running bigger cams with a nistune and if there was any problems.

My car has 3inch exhaust, fmic, bigger injectors, 3071r and the nistune.

[wolverine]

Either will idle with Nistune. I am unsure what issues your tuner thinks will occur using Nistune.

There is a slight lump at idle with the type B's.

[whitneybra]

THis is what ive been told. Being manual we may be able to get around it. We have had some dramas with the auto cars and big cams stalling.

The problem is at 0 throttle above 800 rpm the ECU cuts the fuel. If your cams are too big and you need your idle to be 950 then you are all ready under idle when the ecu starts to add fuel again.

I would imagine the 252’s should almost idle like standard so we should be able to tune around it.

There are other plug-in ECU’s on the market but I would stick with the nistune for as long as possible

[GTSBoy]

That's bullshit because the decel fuel cut rpm is adjustable, and it doesn't happen when the VSS is reading zero anyway.

[wolverine]

The throttle recovery is about 1800rpm with an auto Stagea image. Unless there has been a revision on Nistune that allows you to modify this setting it seems to be pretty much set in stone with this image.

I have been supplied with the wrong image for the Stagea and haven't gotten around to removing the board and getting it reflashed to the manual image. I would love to lower the throttle recovery to about 1500rpm...and get rid of a couple of error codes.

[DVS JEZ]

I will be fine. NIStune is alot better and alot of tuneability compared to what some tuners think, it is however alot different to most ecu's so some tuners are unfamiliar eith how to tune them correctly

[Torques]

That's bullshit because the decel fuel cut rpm is adjustable, and it doesn't happen when the VSS is reading zero anyway.

I will be fine. NIStune is alot better and alot of tuneability compared to what some tuners think, it is however alot different to most ecu's so some tuners are unfamiliar eith how to tune them correctly

I would not be so sure about this.

This depends on the ECU being used.

There is not just one Nistune ECU and they all have different features depending on the hardware.

I have the Z32 ECU (Type 2) and there it seems to be working but on R34 (Neo / Type 4) I would not know.

From what the tuner said it seems he knows what he is talking about...

Best is to ask Nistune for a 2nd opinion

http://forum.nistune...+recover#p16761

Edited October 17, 2012 by Torques

[GTSBoy]

I have R34 Nistune. Have had both manual and auto and Stagea images in it. Both the R34 images allow the decel fuel cut and recovery to be adjusted. I do not remember if the Stagea image did, as it sucked for other reasons.

[Dose Pipe Sutututu]

replace tuner, lumpy cams don't like stoich, but being poncams man there won't be any issues

[R31Nismoid]

Surprised no-one has asked why you'd even bother with cams on a 3071... turbo simply isn't big enough to warrant the expense IMO, far better things to spend that money on a bang for buck scale.

[34GeeTeeTee]

The type B's in my car are undetectable.... Idles at 950 smooth az.... They are not lumpy cams

[GTSBoy]

I might have to retract my statement about the cut & recover being adjustable in R34 images. I can't find it in the R34 images, even though I thought I had seen there in the past.

It is there in other images I have used, like the R32 RB20.

[whitneybra]

Im getting some great responses here keep them coming.

Johnnilicte " Replace tuner, lumpy cams don't like stoich, but being poncams man there won't be any issues"

The tuner is a very trusted and recommened on here 9/10 threads when people are chasing tuners in qld. I fully trust his addvice i just wanted to hear what others people have done in this situation.

　

R31 Nismoid "

Surprised no-one has asked why you'd even bother with cams on a 3071... turbo simply isn't big enough to warrant the expense IMO, far better things to spend that money on a bang for buck scale"

　

Thanks for the constructive criticism. What other bang for buck things would you recommend?

Half the reason i even want to do the cams is i have a weaping rocker cover seal and getting a 100k service done and the mechanic is a good mate. Just thought i might aswell get some see how the car will responsed.

　

34GeeTeeTee "The type B's in my car are undetectable.... Idles at 950 smooth az. They are not lumpy.

I see in your list of mods your running a Haltech. My problem is apparently the lack of ability to change a few settings with the nistune due to the higher idle. Not that they will be to lumpy.

[whitneybra]

Im getting some great responses here keep them coming.

Johnnilicte " Replace tuner, lumpy cams don't like stoich, but being poncams man there won't be any issues"

The tuner is a very trusted and recommened on here 9/10 threads when people are chasing tuners in qld. I fully trust his addvice i just wanted to hear what others people have done in this situation.

　

R31 Nismoid "

Surprised no-one has asked why you'd even bother with cams on a 3071... turbo simply isn't big enough to warrant the expense IMO, far better things to spend that money on a bang for buck scale"

　

Thanks for the constructive criticism. What other bang for buck things would you recommend?

Half the reason i even want to do the cams is i have a weaping rocker cover seal and getting a 100k service done and the mechanic is a good mate. Just thought i might aswell get some see how the car will responsed.

　

34GeeTeeTee "The type B's in my car are undetectable.... Idles at 950 smooth az. They are not lumpy.

I see in your list of mods your running a Haltech. My problem is apparently the lack of ability to change a few settings with the nistune due to the higher idle. Not that they will be to lumpy.

[Dose Pipe Sutututu]

You're hopping to Poncams right? you didn't specify..

Poncams have very mild duration so there won't be any issues idling at stoich & stock timing

[whitneybra]

Johnilicte "You're hopping to Poncams right? you didn't specify..

Poncams have very mild duration so there won't be any issues idling at stoich & stock timing "

Yer im just trying to decide between type A or B.

[Hanaldo]

For your turbo, the Type-A's would be better. In fact. The stock cams would be the best. As Ash said, I wouldn't bother with cams with a 3071.

[Torques]

I think this was re-moved due to not fully working.

(See the link I posted where a tuner asked about this)

It's not set in the base-image but in the so called Address-Files (new with each SW version).

For the Z32 ECU (which I have) it is available.

I might have to retract my statement about the cut & recover being adjustable in R34 images. I can't find it in the R34 images, even though I thought I had seen there in the past.

It is there in other images I have used, like the R32 RB20.

[R31Nismoid]

Thanks for the constructive criticism. What other bang for buck things would you recommend?

Half the reason i even want to do the cams is i have a weaping rocker cover seal and getting a 100k service done and the mechanic is a good mate. Just thought i might aswell get some see how the car will responsed.

Brakes, suspension, clutch, diff - I could go on but you get the idea

[STATUS]

should not be an issue, yes the r34 nistune has less tuneable addresses than other nistune ecus it wont have an issue (most are cold enrich issues on e85 on really big horsepower setups) , i do however recommend running the std bov to help alleviate the stalling... it is an issue with some setups on r34 ecus. We have made mid 400's on r34 nistunes so they are capable, you may just need to make a few compromises.