Radiator upgrade for 80tq

[Kaklikian, Gary]

Thanks for the tip, Javad. I too couldn't justify $800 for an all aluminum
radiator, so I'm using a stock 4kq one, which I thought had plastic end
caps.  Using an 80C fan switch and thermostat, I never have a problem with
coolant temps on the street, but only when running high boost levels on
tight tracks in hot weather.  

But, even with a large aftermarket oil cooler, I  see 130C oil temps on the
street and higher on the track.  I'll let the car cool down on the track if
the water temp gets much above 3/4 or the oil temp gets more than 1 led
above 130C (140C ?). In street driving,  even when the oil temp hits 130C,
the water temp gauge never gets much above half and is often lower.

I'm definitely going to look into this radiator upgrade before going back to
the track next summer.

Thanks again,
Gary Kaklikian
86 4kcstq
92 S4

> ----------
> From: 	JShadzi at aol.com[SMTP:JShadzi at aol.com]
> Sent: 	Thursday, August 24, 2000 2:29 PM
> To: 	quattro at audifans.com
> Subject: 	Radiator upgrade for 80tq
> 
>    Since the turbo conversion, my car has been running on the warm side.
> I blame this mostly on the extra heat the water cooled K26 is introducing
> to the coolant.  Some of you may recall that I removed the plastic and
> aux.radiator and converted back to an all metal 4kq unit.  I am also
> running a "13 row Long" Mocal oil cooler.  For city or street driving it
> is fine in all but the hottest weather.  On the track, however, the car
> ran very warm, even overheating once (blew off some steam) in 90+ degree
> weather.  
>    Basically, the options are slim, the best but most expensive being the
> massive 2B all aluminum radiator-I just could not afford it so I looked
> into some other options.  I came by www.bekoradiator.com.  They build high
> efficiency metal cores, and even have a high efficience "dimpled" core.
> They dimple the runners in the core to increase turbulence of the coolant
> thru the core, and also to slow down the coolant increasing the time to
> exposure.  I dialed them up, and they referrred me to a local shop who was
> very reputable-George's Radiators in Sunnyvale, Ca.  I dropped the core
> off Mon. and picked it up Tues.  I had a 2" dimpled core put in, basically
> they cut out the middle of the old radiator and solder in a new
> core-basically a brand new radiator!  It cost $400, a little steep but
> worth it if it can keep up with the heat of my motor.
>    After a few days of driving it, I am happy to say that it reduced my
> water temps by 40% under similar driving conditions.  Even heavy flogging
> and boost will result in half a tick past the factory bold mark, almost
> half way up the guage.  Under highway cruising, it hovers just past the
> warm up zone, and higher oil pressures indicate that my oil cooler therm.
> is closing at highway cruising speeds.  I am happy with the results, let
> me know if anyone needs any more info.  No affiliations, just a happy
> customer.
> Javad
> 80 quattro turbo
> 
> 
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