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Made a new dynorun as promised before. This is Rear Wheel hp! You can see the improvement over last time bij some 25 rwhp (266 RWHP over 241 last time). 266 rwhp should be about 300 flywheel hp


and did some street-legal racing at our local former airport dragstrip (Drachten):

http://www.youtube.com/watch?v=wxtxIsZsXf4

In the above video the waterinjection was not working yet, but now it is :twisted: I hope to run a good time at EBI3 this year, but it will be on street tires, so no spectacular 60ft times are to be expected.

Some track day racing at Assen june 6th circuit with friends:




and a burn-out and short sprint run on our Budel event last week:
http://www.youtube.com/watch?v=lAIbrtrd3tk

http://www.youtube.com/watch?v=eRauAaD540w

What's your CHT with alu cylinder & turbo? Head sealing is ok?

Superflo a écrit :What's your CHT with alu cylinder & turbo? Head sealing is ok?

CHT doesn't get above ~375F under full boost. 350F when running ~120 km/h on the autobahn in 5th running 3100 rpm.
Fuel consumption is 1:10 at 100-110 km/h constant, but gets easy to 1:9 with a little bit more speed/acceleration now and then
Head sealing with the experimental sealing technique (no, I am not allowed to disclose) we used is perfect: Not a drop or sweat on the first head fins!
EGT is now the one to watch out for for me

Coming wednesday another dyno run with the WI working at Steve's VW shop in belgium. Its his 'open house' and 'dyno-day'. Anyone here going to come?

Piano wire?

Superflo a écrit :Piano wire?

Haha, no, thats not it. Just think what porsche did to overcome the problem and your getting close

What are your CHT readings Florian?

The digital gauge shows 170-190°C @ 130km/h and 240+ @ 200km/h. Sensor is under sparkplug #2 and the shroud is a BAS, I know those temperatures are very high, a well balanced shroud could improve that.

Actually those temps are not extremely high. 190C (400F) at 130 km/u is about the max I would run for longer periods. I consider 225C the approximate limit for this on original (old) castings. 240C (~500F) for short periods of time will hold, but try to avoid it.
Your running now under cyl.2, while cylinder no.3 gets even a little hotter in the BAS shroud...
If your running new (AMC) heads, the casting can probably take a little more heat.
Your temps I consider common for large type 4's with a similar build. It shows they usually run too hot on the heads imo.
Thanks for sharing.

hi !

Airspeed>> more information on this 1303 ??

Yes, its of a friend, called Dean and has a 2366cc type 4 with 44IDF's
Its rather light-weight are surprisingly fast on the track.

Enfin, c'est tous 'en francais', so you guys should have 'pas de probleme' knowing what the french commentator says
I only understood 'Dyno Don'

http://www.youtube.com/watch?v=C2D_kSGaWBI

hi airspeed !

I have seen your 1303 at ebi 3, incredible sound !! and performance !!
your best time ?


Benoît.

The times were not very good there: 12.9 (I ran a 12.5 on these street tires before and 12,1 on drag slicks..)

Picture from a street-legal event 'en Pays-bas' :



and another vid from EBI-3:

http://www.youtube.com/watch?v=7IGG0RZQHsM

Pour l'avoir vu au bug in, super impressionnant, elle leur à toutes mis un longueur d'avance :twisted:

1ptite video peut etre car j'ai raté ces runs