Radiators

[PaulJLLD 0]

Hi, slowly getting my road rally car built up and i cant make up my mind which rad i should use on the new car, on my old car i used a 205 turbo derv one but thay take up alot of room so i dunna what to do, also seen some all alloy onces on ebay, anyone ever brought one? want to keep the engine as cool as i can.

[pug_ham 244 3 Cars]

I use an alloy standard 205 GTI / diesel rad on my track day car & its still fine even on summer track days, I'd expect the TD rad to over cool so the oil never really gets hot enough.

 

The choice of thermostat has more of an effect on overall running temps imo, I have a 78' one fitted iirc & Skip Browns used to supply a 72' or 75' one in the Roadspeed conversions iirc.

 

Graham.

[engine killer 6]

my experience is a standard copper radiator with stock twin fans setting (original with a/c setup) can survive the hot 34 degree celcius with high humidity weather trackday function in condition that a big oil cooler and the coolant system is un-blocked.

[PaulJLLD 0]

I use an alloy standard 205 GTI / diesel rad on my track day car & its still fine even on summer track days, I'd expect the TD rad to over cool so the oil never really gets hot enough.

 

The choice of thermostat has more of an effect on overall running temps imo, I have a 78' one fitted iirc & Skip Browns used to supply a 72' or 75' one in the Roadspeed conversions iirc.

 

Graham.

 

That just a alloy core one or a all alloy rad?

[pug_ham 244 3 Cars]

That just a alloy core one or a all alloy rad?

Alloy core, plastic sides. Around £45 for a Nissens one from most motor factors.

 

The all alloy ones you've seen on ebay are probably the Radtech ones which Daz_C on here has on his car without any issues.

 

Graham.

[mr_exe 1]

A Valeo rad does the job for me, though i've added the diesel twin fan set up.

[PaulJLLD 0]

O.k Thanks guys,Think il stick with the standard gti rad and give skip browns a ring about a cooler thermostat.

[pug_ham 244 3 Cars]

A Valeo rad does the job for me, though i've added the diesel twin fan set up.

Twin fans will have no effect on the running temp imo, they just cool it back down again when its hot enough for the fans to be activated.

 

Graham.