Hyvinkää NNC Street Slide

After VW Open I noticed that all exhaust valves were seized and k- liners were pulled out from valve guides. I pulled the heads off, took them to Jussi from Kuplapaja and after 5 days I got heads back with new exhaust valves and k-liners. Great service from Jussi and Harri!

I managed to get the car ready few days before NNC Street Slide event and as I knew there were at least 4 other VW's going I decided to go there as well. What a great day it turned out to be. The first run was 12.131 @ 187,30km/h with 1.97 60ft so I knew the power was there. I was hitting the rev limiter 7800rpm just before the finish line but did not want to rev the engine higher as there was no traction at all and I was not chasing top speed anyway. In the eliminators I managed 11.94 @ 188.58km/h and the limiter hit 50m before finish so next time I'll raise it and try to go over 190km/h. And with better traction and better 60ft times I'm sure low 11's are possible.

Congratulations also for Tomi, Anders and Matti for PB's at Hyvinkää!

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.

Trial fitting

we decided to trial fit the header before going any further with the welds. Only minor adjustments were needed to get all lined up. Looks good so far.

And pipe work continues...