How much money to run 10s in a street car?now with part2, The evolution to turbo

[richie]

three: there may have been some bias in the testing done to prove dtm is best 

Surely not...

    Yep its possible!!

[richie]

So once i was happy with fit of fiberglass shroud I started to figure out how to mount the fan/alternator & ring assemble, then on to the idler pulleys and mounts and this was what I 1st came up with    

[j-f]

A DTM from Jack Raby is not enough for your purpose?
He did some extensive testing on the VW cooling.

No, for several reasons,
one: all the testing i have read about[no idea how accurate it is]  shows it cools evenly over all cylinders but as it uses a regular fan its still limited on how much air it moves at any given rpm, i have a tall 4th gear so fan speed is quite slow, using a 911 fan which moves double the air a wide type 1 fan does at an given rpm should make a huge difference
two: the dtm set up takes even more room in engine bay than type 1 does so harder to fit everything in, and worse work on it as well 
three: there may have been some bias in the testing done to prove dtm is best 

Thanks for your explainations 

Hard to tell what's technically good, versus a good marketing nowadays.