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Author: Subject: Zetec Coolant Issues

posted on 10/6/19 at 08:08 PM Reply With Quote
Zetec Coolant Issues

Good evening

I have a Tiger avon running a 2.0 blacktop zetec with webber 45s, which makes some good power.

This is purely a track car, maybe just me but after a couple of hard laps my coolant temps are anywhere from 90-107, I run a raceline jacket too and large tiger ally rad.

What are peoples cars running?? Anything to be worried about or do zetecs like to run hot

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posted on 10/6/19 at 09:43 PM Reply With Quote
Raceline water rail causes a lot of of over heating issues.
This subject has been covered many times baiscally it makes the operation of the thermostat so sluggish the temperatures will not be controlled.
The thermostat needs to be exposed to the bypass flow of coolant, that would normally continuously flow through the heater plumbing.
The Raceline water rail places the thermostat too far away from the coolant flow when the thermostat is closed.

[I] What use our work, Bennet, if we cannot care for those we love? .
― From BBC TV/Amazon's Ripper Street.

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posted on 11/6/19 at 07:29 AM Reply With Quote
That's not too hot. Zetecs run hot and I'd say that was well within limits...

Sigs are uncool.

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posted on 11/6/19 at 09:19 AM Reply With Quote

Thanks for your replys guys

My thoughts are the Raceline jacket is very slim and to me restricts the flow.

I was thinking of putting a stock housing back on and routing with new pipe work back to top of rad which would be easy to do. Every track day I have done have been on warmish days under 24 degrees so bit worried about on the hotter days



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