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Evidence of chipping?

T

tref

PCGB Member
Member
Gentlefolk,

I have a turbo with a 3 Bar fuel pressure regulator... before changing it for the correct 2.5 Bar fuel presure regulator, I thought I would check it hasn't been chipped and hence need a 3 Bar FPR. I have taken the brain out to have a look, and there is no evidence of the tabs ever having been folded back since manufacture. Can anyone tell me if it is possible to do it so neatly you wouldn't know anyone has ever been in there, or, is it as I suspect, that it hasn't been played with?

TIA,

Tref.
 
Hi Tref,

I'm sure it is possible to do, although you would have to be very carefull.

Best to open the dme and check what is in there.

Regards

Graham
 
Or get someone to plug it into a Bosch Hammer - they sometimes throw up an error code with an aftermarket chip
 
I swopped the chip in my S2 and opened the case twice and to be honest you could not tell it has been opened, if you bend them back gently and same for the replacement, so best to have a look inside. Or like suggested plug it into a diagnostic tool.
 
I opened up my DME box to fit the new promax chip and found a superchips one already there! Box looked like it had never been open. I then found out it had been running 17psi boost the whole time when I connected up my new boost gauge. That will be why the needle always flew off the end of the scale on the dash boost gauge!!

Incidentally it was running a 2.5 bar FPR on the superchips chip which was obviously providing enough fuel as it's done at least 40k miles like that it would seem!

Stuart
 

ORIGINAL: scam75

I opened up my DME box to fit the new promax chip and found a superchips one already there! Box looked like it had never been open. I then found out it had been running 17psi boost the whole time when I connected up my new boost gauge. That will be why the needle always flew off the end of the scale on the dash boost gauge!!

Incidentally it was running a 2.5 bar FPR on the superchips chip which was obviously providing enough fuel as it's done at least 40k miles like that it would seem!

Stuart
Click to expand...

Hi Stuart,

What had been done to get the boost up? Was there a jetted banjo bolt or something?

Regards

Graham
 
OK... Cover off, and it looks like a bisc 24 pin chip, with a white label 1267 slightly larger than the following 355235. So I am guessing absolutely bog stock.

Anyone want to swap a stock FPR for a 3 Bar one to fit an '86 Turbo?

Regards,

Tref.
 
Get out from under that bonnet - you should be getting ready to go out. You'd better not be late!
 

ORIGINAL: GPF


ORIGINAL: scam75

I opened up my DME box to fit the new promax chip and found a superchips one already there! Box looked like it had never been open. I then found out it had been running 17psi boost the whole time when I connected up my new boost gauge. That will be why the needle always flew off the end of the scale on the dash boost gauge!!

Incidentally it was running a 2.5 bar FPR on the superchips chip which was obviously providing enough fuel as it's done at least 40k miles like that it would seem!

Stuart
Click to expand...

Hi Stuart,

What had been done to get the boost up? Was there a jetted banjo bolt or something?

Regards

Graham
Click to expand...

Hi Graham

There was a bleed valve installed on the main line to the wastegate. Old style bleed off rather than ball and spring affair MBC.

Stuart
 

ORIGINAL: tref

OK... Cover off, and it looks like a bisc 24 pin chip, with a white label 1267 slightly larger than the following 355235. So I am guessing absolutely bog stock.

Anyone want to swap a stock FPR for a 3 Bar one to fit an '86 Turbo?

Regards,

Tref.
Click to expand...


If its the same as one for 1990 Turbo I will swap with you.
 
ORIGINAL: Frenchy

Stuart,
Does it feel better with Promax ?
Click to expand...

Hi Jim

I think so but not night and day. I wish I'd had it dyno'd before changing over as it was already running 17psi albeit on 2.5 bar fuel pressure. The KLR chip was still standard though so at least with the Promax kit that is changed too. It does seem a bit more willing now and the Promax kit gets a better name plus the fuel pressure is up to 3 bar, also boost is up to 18psi on the default map. I also know I can play with fuelling and injectors to suit with the Promax kit too via the FQS.

I am much happier with the Promax set-up as it's tried and tested and recommended in 944 circles. They were also good enough to send Alastair all the spec and install sheets for the level 2 bits and bobs so pleased to have installed it.

Cheers

Stuart
 
I have an '88 car and will happily do swap and pay for postage if needed - been meaning to sort a 3 bar fpr for ages now so I can install the brand new DPW I have sat in my kitchen ! haha

PM me if needed,

cheers,

Mike
 

ORIGINAL: mike220

I have an '88 car and will happily do swap and pay for postage if needed - been meaning to sort a 3 bar fpr for ages now so I can install the brand new DPW I have sat in my kitchen ! haha

PM me if needed,

cheers,

Mike
Click to expand...

Ditto
 
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