[928uk] Improve performance

[mark white]

Thank you Paul
I’ve got Cup wheels and good tyres but think the brake system could do with a flush through with new fluid. 
Sorry I’m about to leave for work. 

Many thanks Mark from Eastbourne 

Sent from my iPhone

> On 26 Sep 2019, at 07:35, Paul <ukkid35 at gmail.com> wrote:
> 
> 
> Of course I agree with everything Alex says, but the best way to improve the performance of most cars is to improve the brakes, suspension, and tyres
> 
> The brakes work better when pads, fluid, and hoses are fresh and of good quality
> 
> The suspension works best when the bushes are fresh, the ride height is correct, and the wheels point in the right direction
> 
> I seem to remember that Alex has sent more money on fancy shocks than anyone else I've heard of, I wish I could afford to do the same
> 
> At least I have some decent tyres now, AD08R, but I needed to replace the 16" slots with 17" Cup II first, genuine light weight ones too, and that wasn't cheap
> 
> As for the engine I've discovered that one cylinder has half the compression of all the others, which was a devastating shock, but I can still get 164 out of the car, GPS verified
> 
> Paul
> 87 S4 Manual - 240k miles
> 
>> On Wed, 25 Sep 2019 at 23:21, Alexander Popov via 928uk <928uk at lists.928.org.uk> wrote:
>> Hi Mark,
>> 
>> First - change the oil. I would recommend Motul 300v 75w90 LS. Not cheap, but it is probably the best transaxle oil you can get. 
>> 
>> Secondly as for improving performance- let me start with a basic question. Is everything on the car in good condition- knock sensors doing their job, hall sensor still there, connected and working, no vacuum leaks and no split intake hoses? Injectors clean and spraying correctly?
>> 
>> If yes, the most cost effective method is as follows- JDS Porsche aka John Speake sells programmable ECU chips that can be swapped into the LH and EZK computers. Once these are installed, he or a few others can remap the fuelling and ignition maps using a Shark Tuner Mk2 and a laptop. Porsche did leave quite a lot on the table, particularly in the mid range. The cost of the chips and remap is very, very reasonable. 
>> 
>> If no - then fixing any of the problems listed in the second para will also make the car much better. 
>> 
>> Last but not least - if you have relatively deep pockets, I think you can get 400bhp out of the 5.0 lump with some work. Cams, exhaust headers, intake head porting and matching, and finally a map to take care of all the changes. 
>> 
>> Hope this helps,
>> 
>> Alex
>> 
>> 
>> Sent from my iPhone
>> 
>> > On 25 Sep 2019, at 22:05, mark white via 928uk <928uk at lists.928.org.uk> wrote:
>> > 
>> > <mime-attachment>
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