Educated Guess At The Final Tune Results

[Piggaz]

You didnt seem to mind when I dropped it at 8200

You have Vcam and an EFR.

You want a stroker. I rest my case..

[AngryRB]

How much boost/power can you go with 98ULP? I know my RB25 was on the limit at 280kw's, tuner said any more and the valves will start burning, but on E85 it was , "so where you wanna stop here?" , laughs all around it was ridiculous what numbers where being pumped out...

[luke gtr]

How much boost/power can you go with 98ULP? I know my RB25 was on the limit at 280kw's, tuner said any more and the valves will start burning, but on E85 it was , "so where you wanna stop here?" , laughs all around it was ridiculous what numbers where being pumped out...

I had 445rwkw at 19psi on 98.

[Piggaz]

I had 445rwkw at 19psi on 98.

You forgot to say what size the turbo was.

[Nismo 3.2ish]

Have u had a car with a restricted turbine that caused boost to drop as peters did?

No issues with mine holding boost with a similar size turbine wheel.

image.jpg

And yours has got far more power than mine. That is how I expected my graph to look like, the psi is set and once it reaches the limit it remains there.

It is just strange that it drops off before it reaches the 6000rpm where I had the previous problem, but I do not know enough to make a statement, just an observation. This does not mean I am right

Also it is not as rich as it was every other time I had a tune , maybe it was a motor safety thing?

[XGTRX]

Have u had a car with a restricted turbine that caused boost to drop as peters did?

No issues with mine holding boost with a similar size turbine wheel.

image.jpg

Similar set up or exactly the same.

[sky30]

Similar turbine wheel size, my point being it should hold boost unless they tuned the boost controller to do that or compressor is out of flow which it shouldnt be

[Nismo 3.2ish]

Going off the Dyno readings the PSI is dropping off at 150kph, tested it and at 150kph it is 4500rpm in 5th gear. That seems a bit early for it to start to taper off, well to me but I know very little about the workings of turbos/cars etc ??? Oh, and women

Edited July 3, 2015 by Nismo 3.2ish

[Hadouken]

Like you said earlier. You are going round in circles.

If CRD are not answering you then we can only presume that it is due to them not wanting to instead of them not knowing.

And lastly, just take it to someone else if you're not happy. Or are you happy? If you are then just leave the thing.

[Ben C34]

Maybe because you said you didn't care about peak power just response they didn't bother making it hold boost.

I do find it hard to believe that they trialled various camshafts for some reason, but never made it hold boost...

[SiR_RB]

Take car to Jez

End thread

[Nismo 3.2ish]

Like you said earlier. You are going round in circles.

If CRD are not answering you then we can only presume that it is due to them not wanting to instead of them not knowing.

And lastly, just take it to someone else if you're not happy. Or are you happy? If you are then just leave the thing.

I am not going in circles with what I said, I tested it today to see exactly what RPM the boost started to drop off , now I know and now you know

Dont want to know, dont read the shit

[Nismo 3.2ish]

Take car to Jez

End thread

That is not the end, have to see what happens after it comes back from Jez, I will post the results.

You can all have a laugh at my whinging about the results if it is not better than it was and I will go away with my tail between my legs, THEN , end of thread :yes:

[XGTRX]

Similar turbine wheel size, my point being it should hold boost unless they tuned the boost controller to do that or compressor is out of flow which it shouldnt be

Not if there is that much back pressure that it cracks the gate open. But anyway we will see I suppose. Based on everything that has been said it points to the turbo IMHO. But who knows. But most of the time these issue seem to get solved with a bigger turbo. We all have theories, if I am wrong then I have learned something. Edited July 4, 2015 by XGTRX

[Nismo 3.2ish]

Maybe because you said you didn't care about peak power just response they didn't bother making it hold boost.

I do find it hard to believe that they trialled various camshafts for some reason, but never made it hold boost...

Maybe Ben, got one of the SAU blokes coming up tomorrow and want him to take it for a run and see what he thinks..

I go for a drive most days and love it, went this morning to check out the rpm to kph as it is not displayed and I did not notice the PSI drop off up to 6000rpm, just want to know why, got a few different opinions but it seems my push for answers annoys some blokes

Oh, and the only thing I have ever put shit on my X builder was for, NON COMMUNICATION !!!!!!!!!!!!!! and they are like that to the end!!!!!!!!!! hate it

You know what I do if I do not like a thread, I do not read it, if no one is interested it dies without being shut down, simple

[Gts-t]

Ive read most of this thead, but i wouldnt be suprised they made the boost drop off to stop your missfiring issues

Looking forward to seeing further development with a different tuner. Lack of communication is quite frustrating

[Nismo 3.2ish]

Ive read most of this thead, but i wouldnt be suprised they made the boost drop off to stop your missfiring issues

Looking forward to seeing further development with a different tuner. Lack of communication is quite frustrating

Get a life Mick,haha

I just cannot help think the same and could be 100% wrong, but the psi dropping from 4500rpm ,fark it only just spooled up, think it would hit 6500rpm before taking a nose dive ?

When I get the next tune maybe I will not even get the same result, it might be 350 - 360awkw, I do not care as long as the top end lose goes down to where I can play

[AngryRB]

What's the boost controller set to? There's a few very similar setup's in the RB30 dyno thread, a 6262 with 0.83 rear doing 450 or something but E85 23psi flat

[Nismo 3.2ish]

Top setting was 22psi before this tune. But running on 22psi it went tits up at around 6000rpm.

Now it went to 24psi @ 4500rpm before it tapered off to 18.5 @ 7000 ( I think the 381.7 kw was around 7k , the private road I used would not let me go to 7k in 5th gear, just squeezed in 4500rpm, too short) Not sure if it is actually set at 24psi, just going off what I can see on the dyno chart before it dropped off.

There is no harm in having a guess at what is going on here and in about a month there might be some answers, could be better, or worse ??????

[Hadouken]

You have 2 answers thus far for you boost tapering off.

1) Turbo is to small for the 3.2L

2) You are running out of spark

Im going for 2