remap and electronic boost controller
 

Hi, does anyone know if an electronic boost controller is fitted as well as the car being remapped, will the boost controller interfere too much maybe causing damage.

The reason I ask is because my car has been remapped but I don't know to what turbo pressure, and I also have an electronic boost controller which dictates the boost as well.

My boost controller boosts to 1.2 bar (17.4 psi) then drops to just under 1.1 bar (15.95 psi) nearer the redline. This is on a TDO4

Any info would be great,

thanks

Not quite sure what you mean, but an aftermarket boost controller will over-ride the ECU boost control.

It can be used in conjunction with a map.

For big power classics, JGM would probably advise adding boost control, the new-age ECU is adequate to silly figures, then it's Simtek I guess !

HTH

DunxC

For classics to be remapped via Ecutek, an aftermarket boost controller like the AVCR is definately a good idea for two reasons:

You can't program in gear boost compensation with Ecutek with the Denso ECU. This feature results in a much nicer drive and its available on the AVCR.

Also, the above ECU has a f**king annoying emission related boost cut feature which mappers can't remove. Taking boost control away from the ECU overrides this.

I have an AVCR and Ecutek remap by Bob; mappers will set it up for you as part of the mapping process. It's done such that it compliments the other map parameters, so you shouldn't fiddle with it once set.

Ns04

Classic = JECS = no gear compensation
New Age = Denso - gear compensation

It is not on the 2006 STi ecu Andrew.

thanks for the info everyone. If I understand it correctly, an electronic boost controller will take control over the ECU to decide what boost is required (depending on what the user sets).

I'm running an APEXI Power FC by the way (not on ECUTEK).

Bob'5, sorry my explanation wasn't too great :) basically I heard that the POWERFC ECU has in-built boost control. Because of that I thought the ECU would be sending a signal how much boost is required, then the boost controller overrides it and chooses a different boost value. I wanted to know if there would be any problems in having 2 forms of boost control?

I guess Electronic Boost Controllers can only be a good thing then. It would be great if I knew what boost pressure my car was mapped to though :(

By the way thanks for the information NSO4, I wasn't aware of the emission control "feature" on ECUTEK remapping. I would prefer not to have it throttled back due to emissions.

I've never come across this :wonder:

LOL Sorry, got the names the wrong way around! :D

I'm not sure the new ages got stuck with it mate! Classics got lumbered with it to pass emissions, also known as drive by mode IIRC

Ns04

Dynamix..... It's certainly built into the bugeye. If you keep it at a steady speed in lower gears for a while then the ECU thinks it's actually doing an EU drive by noise or emissions test and won't add additional boost when you decide to start going again.

Usually only noticable if following something slow like a tractor for quite a while and then floor it to overtake.......you have to lift off completely to get boost back on.

Shaun

was it mapped with the boost controller fitted?

or are you saying the boost controller has been added after or altered after?

if it was on there when mapped and hasn't been altered then you answered your own question with 1.2bar tailing to 1.1???? or am I missing somerthing?

Simon

Hi Simon, no the car was remapped before I bought it and I found out myself that it had been remapped on an APEXI Power fc. I later added a Greddy Profec B Spec II electronic boost controller (...and breath :-)
Not knowing what boost levels my car was remapped to, I just took a guess at a peak of 1.2 bar so that's what I set my boost controller to. It tails off at 1.1 at around 6000rpm though. If I wanted to though, there's nothing to stop me setting my ebc to over 1.3 Bar though but I chose a lower boost value.

I guess I'm just hoping that I haven't set the ebc higher than my car has been mapped for.

Thanks

do you have the powerfc commander?

the powerfc fuel cut is 0.2bar higher than the target boost so if it is mapped to 1.2bar target it will fuel cut at 1.4bar.. which is not going to help you as you will obviously could run at 0.18bar etc above what it is mapped for.

The best bet would perhaps to get it tweaked etc..

generally the td05 is mapped for around 1.2bar but you never know for sure without commander or plugging a laptop in.

Simon

I wish I had the commander but unfortunately it didn't come with one. I didn't realise fuel cut was so much higher than the target boost on the Power FC, thanks for the info.

I'm actually running a TDO4 (along with a decat downpipe and a 4" backbox)

really you should get it tweaked for the boost controller imho.

there is also the posibility that the boost controller may spool it quicker than the powerfc was and therefore cause det etc..

Simon

Great thanks for the advice. My suspicions were right then that it cause problems if it's not set up correctly. I will probably need to take it to a rolling road then.

No rolling road necessary - just speak to Simon JGM and he can sort it for you :thumb:

no need for a rolling road.. just because a place has a rolling road it doesn't necessarily mean they have the knowledge or equipment to map a car..

you need to take it to a mapper..

I am happy to do so, or one of the usual suspects would be happy to I am sure :)

Simon

pm sent, thanks.