T350 cooling

Author
Discussion

astonman

Original Poster:

791 posts

210 months

Thursday 2nd July 2015
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My T350t has always run at about 90ish degrees,not leaving much leeway.Both oil and water crept up to around 100 whilst backing into my garage after a spirited run,ok I know it's hot out there at the moment.But does anyone make a radiator that cools better than the standard one?or is it just an airflow thing?
Simon.

SteveSPG

2,120 posts

202 months

Thursday 2nd July 2015
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ali rads can work better, but a good fan setup ought be fine.. its just heat sink in the block with no airflow that has caused the temp rise, and o don't think an ali rad would have helped in that circumstance,

chris watton

22,477 posts

260 months

Thursday 2nd July 2015
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You can upgrade the rad cooling fans, but to buy both is over £300, very expensive!

http://www.powersperformance.co.uk/store/slug/upgr...

julianc

1,984 posts

259 months

Thursday 2nd July 2015
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There is also a chip mod that brings the fans on earlier - I have this in my Tamora.

brownspeed

735 posts

131 months

Thursday 2nd July 2015
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julianc said:
There is also a chip mod that brings the fans on earlier - I have this in my Tamora.
interesting.. please tell me more

NWTony

2,849 posts

228 months

Thursday 2nd July 2015
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Can't you set the fan temps from the dash ECU?

a1butch

269 posts

194 months

Thursday 2nd July 2015
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My tamora's water would barely rise above 85 in normal out of town driving and oil below 70. I've sold the car now and hopefully a T350 on the way. After driving the T350 the water was closer to 90 or above and oil above 80 in similar conditions. Pretty sure my rad was standard but the 350 fitted with a brand new alloy rad.


sebhaque

6,404 posts

181 months

Thursday 2nd July 2015
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My C happily runs its water at 90C-ish. I was under the impression that since the cooling system is pressurised, temperatures of over 100C shouldn't cause much concern. My VX220T used to run mid-90s if I was exercising it/on a motorway run and I remember seeing the coolant temperature at 110C without much bother. I never had an issue with the Vauxhall and I sold it to a pal of mine, who's now taken the car to over 100k in mileage so those temperatures are manageable on Astra GSi engines - Trev Speed Sixes may be a different story!

In my uninformed opinion I would have thought that coolant at 90 degrees shouldn't really be an issue, particularly given that most cars run coolant at about 85C, plus with the warm weather we've had it's a potential cause of a bump of a few degrees in coolant temperature. If your coolant is reaching 90 within a few seconds of firing up the engine, then there's a problem. I remember an air leak in a friend's 3-series that would momentarily send the coolant gauge off the end of the scale, before settling down once the coolant bypassed the air leak.

brownspeed

735 posts

131 months

Friday 3rd July 2015
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mine runs around 100~102 when its hot. i know its pressurised but it'd give me more peace of mind if the fans would cut in a little sooner. has anyone details of how to wire a manual by-pass switch for the fans operation?

m4tti

5,427 posts

155 months

Friday 3rd July 2015
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The dash temperature sensor is lousy. Mine over read by 7 degrees, against the ecu sensor. Highly accurate electrical sensors cost big bucks. This isn't one of them.

EvoOlli

605 posts

163 months

Friday 3rd July 2015
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m4tti said:
The dash temperature sensor is lousy. Mine over read by 7 degrees, against the ecu sensor. Highly accurate electrical sensors cost big bucks. This isn't one of them.
May I correct you: The TVR sensor is lousy but has the price of a highly accurate one...so it combines the worst of both worlds :-)

m4tti

5,427 posts

155 months

Friday 3rd July 2015
quotequote all
EvoOlli said:
May I correct you: The TVR sensor is lousy but has the price of a highly accurate one...so it combines the worst of both worlds :-)
Lol.

I installed syvecs and dropped the fan activation temps by 5 degrees and have them set to come on almost together. Temperature never really goes beyond 93.

julianc

1,984 posts

259 months

Friday 3rd July 2015
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brownspeed said:
julianc said:
There is also a chip mod that brings the fans on earlier - I have this in my Tamora.
interesting.. please tell me more
Heath and Paul at X-Works told me of the availability of this chip several years ago.

julianc

1,984 posts

259 months

Friday 3rd July 2015
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NWTony said:
Can't you set the fan temps from the dash ECU?
Not that I'm aware of.

astonman

Original Poster:

791 posts

210 months

Friday 3rd July 2015
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A manual override sounds very useful,has anyone got one fitted or know how to do it?

TOV!E

2,016 posts

234 months

Friday 3rd July 2015
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Could you not run the car with the Evans Waterless System I have heard very good reports about it.

chris watton

22,477 posts

260 months

Friday 3rd July 2015
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TOV!E said:
Could you not run the car with the Evans Waterless System I have heard very good reports about it.
I have asked the same question in the past. The consensus seems to be it's not a good idea for the S6, as it runs even hotter, and can be flammable!

astonman

Original Poster:

791 posts

210 months

Saturday 4th July 2015
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Anyone,any ideas on a manual override switch ?
What's the difference between the standard fans and the upgraded fan on powers website?