Chip Upgrades

[petert 607]

I've been working on this for some time, trying to develop a replacement chip to suit my Stage I inlet cam. Very encouraging results for 139 and 158/161 ECU's . Less so for 354/355 ECU's, where the mapping is already very good. However, the extended rev limit is fantastic!

 

http://www.taylor-eng.com/ecu/motronic_intro.html

[welshpug 1,675]

how very strange, I was reading this just now!

[VisaGTi16v 1]

Would you class 7500 safe for a standard engine with just a different inlet cam for competition use? I seem to recall reading that the 4wd 405's revved to 7400 anyway compared to the 7200 for the 2wd's so its probably fine.

 

Any ideas on prices for these? I have a bbr star chip somewhere that I got for £20 off ebay before but it retains standard rev limit so without trying on a rolling road its difficult to see if theres any difference without going out and doing some timing on a quiet road

 

edit: Ignore the above, except the price bit, just read your cam timing page

Edited February 22, 2008 by VisaGTi16v

[Baz 421]

std rev limit on the mi16x4 ecu's are 7400 anyway.

[KRISKARRERA 2 1 Cars]

Shame you couldn't have done a dyno run with a 139 really to show a graph of improvement there, though I can understand that because it would have meant changing looms.

[nick 3]

I work that out at 129hp at the wheels, what does that make it at the crank?

 

Nick

[petert 607]

I work that out at 129hp at the wheels, what does that make it at the crank?

 

On the same dyno, a GTi180 does 95-97kW. A GTi6 does around 88kW.

[nick 3]

So it's looking to be around the 175-180 mark then, which is pretty good!

 

Any idea on price?

 

Nick

[petert 607]

see Group Buy section