[Panoz]

PROLOGUE
Its been a couple of weeks since I've installed the V3 on my car. I was using JB2HR for some time (after removing the V2 due to spiking issues) and I was really happy from the performance.

Just for the record JB2HR was working at a rock solid 0,95 bar (14~14,5 psi) with no spikes and no boost varations while accelarating in different gears. Back to v3 now...

V3 is an impresively smooth and powerfull tune. I was vary happy to notice that a huge improvement has been done since the V2. Extremely stable and powerfull as well...but i haven't yet tried it on drag/street race....

...until yesterday evening.

...to the point...

I met with two friends with 135i custom tunned(348rwhp @13,5 psi) & 335 JB2HR (not dynoed yet) to do some testing. I connected my laptop in order to datalog the boost pressure of the hi-boost map (haven't made any testing before).
We made several runs. V3 was beyond my expectations. I pulled the 135 2-3 CL easily in every run. The JB2HR (stock car) was 1-1,5 CL behind 135i.
We also tryed the doomsday map. 135 jumped ahead by 1,5 Cl until 3rd gear.From 4th and above I was pulling him continiously till the end that i end up 1CL ahead.

...Time for the desert...

After the runs it was the time to check on teh datalogs and see how the boost behaved. I was terrified to see that the car was running with a 15-15,5psi boost level all across the rpm range. While shifting I was seeing spikes like 18,6 psi!!! The car was also working for fractions of seconds at 15,8psi-16,2psi.
I've also made some runs with my friend on passenger seat (watching the boost from laptop) and the car was working at 15psi all along from 2,5K rpm to 6,5K rpm.

Can anyone explain me is its safe working in such kind of boost levels?? I thought that the V3 was spikeless and the boost was holding to 15-15,5psi only between 3000-5500rpm.

I would really like to know why I shouldn't be conserned with boost levels like these...

My 335 tunes
Procede V3 (beta maps)
Riss Racing coated DPs
Hartge exhaust system
OEM 335i-specific SSK kit
CDV delete
100 Octane (96US Octane) gas

135 tunes
Custom tune 13,5 psi max (348rwhp)
Riss Racing DPs
CDV delete
100 Octane (96US Octane) gas



Well...I'm troubled seeing boost levels like this.

[Nikos335i]

Eventhough we already spoke about this Panos. Two other members that I spoke to and saw was 15.9 and 16.2 spikes when shifting. Their set-up is stock for one and dual cone intake for the other.

[NRG]

I'm on V3 "Stage 1" with dual cones and in my latest datalog I held 16.0-16.3 psi trough entire 4th gear. Just PM'd Dustin with the same question.

[e90AW335i]

Keep in mind the datalogging software reads anywhere from .5 - .75psi high because of where it measures boost. What boost did you see on your boost gauge? (Please don't tell me you don't have one....)

[NRG]

Originally Posted by e90AW335i

Keep in mind the datalogging software reads anywhere from .5 - .75psi high because of where it measures boost. What boost did you see on your boost gauge? (Please don't tell me you don't have one....)

If you asking me, I don't. I'm all about stock look.

[e90AW335i]

Originally Posted by NRG

If you asking me, I don't. I'm all about stock look.

I am not saying to mount one and have it in there at all times, I am saying have one that you can use to check boost without a computer.

You are all about the stock look but you must also be all about not knowing what the hell is going on with your car.

[NRG]

Originally Posted by e90AW335i

I am not saying to mount one and have it in there at all times, I am saying have one that you can use to check boost without a computer.

You are all about the stock look but you must also be all about not knowing what the hell is going on with your car.

I'm perfectly aware that software reads/shows higher then current boost. The abilty to monitor through laptop and not guages was one of the reasons I got PROcede.

[e90AW335i]

Originally Posted by NRG

I'm perfectly aware that software reads/shows higher then current boost. The abilty to monitor through laptop and not guages was one of the reasons I got PROcede.

As long as you are okay with not knowing what boost you are really running than I guess that is fine.

[NRG]

Originally Posted by e90AW335i

As long as you are okay with not knowing what boost you are really running than I guess that is fine.

Not knowing exactly, that what you've ment to say.

[e90AW335i]

Originally Posted by NRG

Not knowing exactly, that what you've ment to say.

No, I typed what I meant. You don't know what boost you are running. If the datalog is anywhere from .5 - .75psi high than you don't know what boost you are running.

It would be as easy as buying a cheap boost gauge, getting 6 ft of vaccum line and running the boost gauge through the window to monitor boost for some runs. That way you would know what boost you were running and you can keep the "stock look".

[scalbert]

Where are the log files?

I certainly hope this is not a E... moment and not realizing the throttle closure will cause a spike in the PROcede logs since the TMAP is before the throttle.

[e90AW335i]

Originally Posted by scalbert

Where are the log files?

I certainly hope this is not a E... moment and not realizing the throttle closure will cause a spike in the PROcede logs since the TMAP is before the throttle.

That is another reason why I was asking about the boost gauge. Seeing it on the datalog is one thing but seeing it on the boost gauge is a completely different matter.

[scalbert]

Originally Posted by e90AW335i

That is another reason why I was asking about the boost gauge. Seeing it on the datalog is one thing but seeing it on the boost gauge is a completely different matter.

The continuing curse and blessing....

[NPDAN]

Originally Posted by NRG

Not knowing exactly, that what you've ment to say.

What E90AW335's saying is that the software wont give you the same kind off boost reading accuracy as a boost gauge does...

[e90AW335i]

Originally Posted by scalbert

The continuing curse and blessing....

[Panoz]

I guess that there must a way to be found to datalog the boost behaviour. You cant actually drive and check the boost gauge. If you really want to pay attention on spikes (during accelaration or while shifting) you need to "lock" your eyes to the gauge and not the road... This cannot happen.

Anyway , is it the general admition that the Pde Reader ALWAYS read .5 to .75 higher than the reall thing? Has really anyone tested and confirmed that or its just an assumption?

Originally Posted by scalbert

Where are the log files?

Want me to send them over by e-mail? Dont know if it could help you just posting the graph's pictures. You couldn't check the boost/RPM level accurently.

[lawdude]

Originally Posted by Panoz

I guess that there must a way to be found to datalog the boost behaviour. You cant actually drive and check the boost gauge. If you really want to pay attention on spikes (during accelaration or while shifting) you need to "lock" your eyes to the gauge and not the road... This cannot happen.

Anyway , is it the general admition that the Pde Reader ALWAYS read .5 to .75 higher than the reall thing? Has really anyone tested and confirmed that or its just an assumption?

Mine records maximum boost, which is viewable by pressing the recall button.

[Panoz]

Originally Posted by lawdude

Mine records maximum boost, which is viewable by pressing the recall button.

I dont think this would help as you dont know the circumstances under which ,this "higher boost number" has been occured.

Of course its good having the ability to do that , but a proper datalog file displaying RPM/Boost/Roadspeed is always better.

[scalbert]

Originally Posted by Panoz

I guess that there must a way to be found to datalog the boost behaviour. You cant actually drive and check the boost gauge. If you really want to pay attention on spikes (during accelaration or while shifting) you need to "lock" your eyes to the gauge and not the road... This cannot happen.

Anyway , is it the general admition that the Pde Reader ALWAYS read .5 to .75 higher than the reall thing? Has really anyone tested and confirmed that or its just an assumption?



Want me to send them over by e-mail? Dont know if it could help you just posting the graph's pictures. You couldn't check the boost/RPM level accurently.

Yes, I'll PM you my email address.

Let's look at the logs and then determine if there is an issue.

[Panoz]

just sent

[GeorgiaTech335coupe]

At the drags I also held 15.9+ for all of 3rd gear via the Procede reader. Stage 1, settings at 87%. 95 octane, beta map. Anyone who would like to see the log is welcome.

[TheAcAvenger]

I had a passenger stare at the gauge while we data logged and Procede reader was consistently .5 to .7 too high.