VW Open

I managed to get the car ready for VW Open. I got there on friday and did some testing on an empty air field. After a while I blew an oil hose. Took me whole evening to fix that but I got it done. On saturday I managed to get two good runs. Burnouts were better than ever. But the time slip was showing that I was having some problems, got 12.38 / 175km/h and 12.30 / 171km/h. There is no way that 250whp could end up with such low trap speeds.

Datalogger, what a great help in monitoring engine under run, did show that the engine was running extremely rich, lambda was 0.68 - 0.72. I took engine lid off for the third run just to check if the engine is not getting enough air. Something happend at 2nd to 3rd shift, 2nd got stuck and I got no data at all. Now I have to take the gearbox out to see where the problem is. Anyway, I have a good feeling when all the small problems get sorted out I can make good runs with the car.

Thanks for the photos Jaakko and good luck fixing the engine, Heebah.

Quick video

I got the engine tested at the dyno again, new header gave 20 hp more. Not bad. 185kw @ wheels and 199kw @ flywheel in street trim, through muffler and fan belt on.
http://www.flickr.com/photos/54830931@N04/7221340236/in/photostream

Last post on the header. It's all welded up and fit is perfect. It took us (or mainly Manne) countless hours to do it, so I really do owe you big time Manne. Thanks!

 

Exhaust mock up. I get total on 13cm ground clearance from the lowest point and that is under the block. Header is not hanging disturbingly low and with one muffler and such a long exhaust the sound is quite OK. It's not quiet but I hope the neighbours won't get too pissed with it.



I decided to route exhaust tip out from the apron cut out as I had no time to weld and get it painted. That will do it for now.



The header is finally all tacked up and waiting for final welding. Should be finished this week so I might be able to drive the car on VW Open on May 19.