On friday i thought i should make sure the fuelling was ok before putting the car on the track. Turns out the car would only boost to 0.5bar, and we traced problem back to Wastegate not seating properly and bleeding boost off at 0.5 rather than 0.7. This also meant the car overfuelled slightly at topend.
We replaced the Load sensor in the rolling road as the previous sensor broke when Rolling roading a Bentley a few weeks ago. Once this was fixed we calibrated the rollers so we didnt get any usual pub figures like so many of these 'tuning' companies rollers.
Once this was done we strapped her down and gave her a few runs.
She put out an impressive 219.28 bhp @ 0.5bar.
Saturday was Castle Combes spring performance car action day - so off we went.
1st session was a bit of a nervous one as i'd never driven the car in anger before so didnt know how it was going to react. The koni's were on softest setting which turned out to be horrendous. The back end was all over the place and exiting every corner was a battle with the steering wheel to keep the inside tyre from shredding itself.
2nd session i set the Koni's to hard, and dropped the R888 tyre pressures down. This made things worse, and made for a hard session.
3rd session i set the rear shocks softer and dropped the tyre pressures even lower. Once the 888's had warmed up she handled lovely. Was going very strong until fuel surge ended the session early.
Overall was a very good day and at least now know how the car reacts so i can improve it before the next track day next month. :thumbup:
A few pics of the day...
Mr Scoops DBS Top Tater
Number of posts : 38008 Age : 46 Location : Weston super Dooper My Ride(s) : 1991 Vanagon GL Westfalia 2.1: 2011 A3 S-Line Registration date : 2006-08-19
Can I ask what mods the engine has , is it Mapped ?
Mart - Rebuilt AGU bottom end and Head, with KO3s Turbo, 2.5" downpipe and system with no CAT. But has AUQ (180bhp) Inlet, Throttle body (flyby), wiring loom etc. All intercooler piping is 2.5" and has big front mount intercooler. Management is standard AUQ mate.
Nice ! Looking forward to seeing this in the flesh
did taking the headlamp out improve airflow/induction ?
It actually seemed to make a difference, i only did it for a joke
SimonABT DBS Old Timer
Number of posts : 1343 Age : 38 Location : Clevedon My Ride(s) : Something with a V6 under the hood! Registration date : 2006-10-08
Engine - - Mk4 Golf (AGU Code) Block and Large port cylinder Head - Mk4 Golf (AGU Code) Inlet Manifold (to match large port head) - Audi (AUM Code) ECU and Looms - Audi (AUM Code) DBW Throttle Body - KO3S Turbo (standard) - Alloy front mounted Intercooler - Straight through Exhaust with Decat - 3" Downpipe - Golf G60 Flywheel - Golf VR6 heavy duty Clutch - 2.75" Intercooler pipework