help with cooling

[khm]

i have built a car ( not ultima ) which i did donington track day with last friday for a first time out & had trouble with keeping it cool, it is a similar set up to ultima with a tuned rs4 audi (614 bhp) mid mounted & large ally rad up front
we have fitted an auxillary pump, but still don't seam to getting the flow we need, the engine running at 110 deg but the rad still at 70 ish
any ideas ?
cheers
keith

[Storer]

Have you got a good size oil cooler in the system and is there plenty of airflow thought it?

[khm]

yes have got a decent oil cooler, but flow is a bit limited due to lack of space in the car, but don't think it is the issue as you go on track you can watch the temp rise, 2-3 laps was absolute maximum

[GTRCLIVE]

I'd check the cooling routing as the Audi has 2 water pumps normally (one mech one electrical) and a much more complicated system than any Chevy. SSS has done many Audi conversions now best take the car to him if your stuck..

[GTRCLIVE]

Now thats what I call complicated...... easy to get wrong I bet...

[khm]

mine is a 6 cylinder, but could you post the link for the pic please
we are using all the audi bit's ie header tank etc, just plumbed the rad onto the front
only other option is to take thermostat out, which i don't fancy doing - it's behind the cam belt ( handy )
you would think this would keep it cool !?!

[chuntington101]

Off topic, but out of intrest what is the car?

[khm]

it's a total one off 'pulse gt1' was built to race mid '90s in british gt series but rules got changed 2 weeks before first race. 3 seater centre steer ( practical family car :-) )
i bought it 2 years ago as a 2 wheeled ' barrow' rebuilt back end, fitted engine box etc

[V8 Vum]

Very nice find!

Did you find it in a mag for sale?

[khm]

the good old internet, wasn't looking for anything like it, was looking for bits for the sr3 radical we had .... and that was it !!
http://www.youtube.com/watch?v=0d2c0DX1KIQ

[spatz]

i think your thermostat has to go, probably the resistance of your tubes together with the rads is too much for the pump.

[khm]

spatz said:

i think your thermostat has to go, probably the resistance of your tubes together with the rads is too much for the pump.

think i know that, just hoping someone has a magic wand to fix it LOL