Even a stock 928 87>> will benefit. i.e. standard fuelling when using the throttle is too weak in the mid range and too rich at the top end.

Igntion timing can be advanced in the mid range which gives the car more pumch, you can gain a little at the top end.

Adding mods like an X pipe and/or headers or a change of cams and there are more gains to be made because you can correctly optimise for your particular configuration.

 

Patrick,

If you found your way to Rennlist and you are smart enough [dumb enough?] to own a 928 then the chances are you are probably capable of having a go at this. There is a learning curve and providing you take small gentle iterative steps it is really quite easy to work on.

John is very helpful and the experience is very rewarding in terms of owner satisfaction. The ST2 software is very intuitive and the graphical software developed by Jim Corenham to interpret the data collected is also brilliant.

As others have said, you also need a laptop [I use an Asus netbook] and a wideband O2 sensor- I use the Innovate package [about $400?] but there are others. It is quite involving and by the time you finish you are left with quite a feeling of achievement. For most of us it is more a one off type of thing but the really good bit is that if and when you try something different, you pop it back on and try to optimise further.

The other positive thing about it is, if your MAF gets tired [as it invariably will] you can correct for the error factor without resorting to a new or reconditioned unit providing it still functions OK [if you so desire].

Cambridge is about 90 minutes or so from the Harwich ferry terminal traffic conditions/roadworks pending.

Regards

 

dr bob & vtc4198,
The mods are a pretty short list really, I think anytime you make a change
to the original configuration its worth going back and retuning.
All I've done to the motor is >

Devek Level 2 headers
e-bay X-pipe
2.5" exhaust pipe
free'er flowing mufflers, center and rear
AFPR
24lb injectors
Four 1'' holes drilled in the, top back edge of the air cleaner lid
A/C disconnected
complete ignition/fuel tuneup

 

If you do get one, I'll be your first new best friend, even though you are in Leeuwarden.

 

haha....Aryan Yes i get it (weet je wat dat ding kost...een dik maandloon)

 

Hmmm, I have all that stuff except the work that isn't "complete ignition/fuel tuneup". My car is cool and quiet as a result.