The heat is on.

[fairclp]

Hi guys,

Last weekend I gave the Beast a good thrashing.

The water temp hit 102c and the oil 91c.

No warnings or other from Beast, but my nerves told me to reduce revs and to cool things off which surprisingly took a long time.

The engine seems to be a two sided coin. Coast = cold; hoon = v. hot

[VYT]

I have seen this coment a few times, mine does not seem to suffer as such. I have taken my T350 out in near 40C weather without issue. Of course the is no chance of thrashing it around Melbourne but I never saw more than 96C. The fans cut in and take the temp down to 90C in a minute or so in traffic. I would agree though that once into the realms where the fans cut in it takes a good while for the temp to drop back to its normal 85 when I clear the traffic. Never had any trouble at Phillip Island race track either, it was about 30C that weekend with maybe 20 minute sessions at full chat. Maybe the bonnet fits too well on your car and doesn't let the heat out
I believe there is a modification available for the T350 to change the position of the header tank which is supposed to help.

[stevend]

You took a TVR around Phillip Island ? (sigh....)

Steven

[_deejay_]

VYT said:

I believe there is a modification available for the T350 to change the position of the header tank which is supposed to help.

They add a second tank which allows more water to be used. Works really well.

[T350TAFFY]

Mine has hit 102 deg C when the water level was a bit low. When the level is at its full state, its never gone above 97/98 degC (i.e. when the 2nd fan kicks in).

[nelly1]

Wouldn't worry too much mate.

I dyno. test engines for a living, and the settings we use are :-

Performance (power curves, blowby, etc) - Coolant=97degC Oil=110degC
Durability (hi-speed, driver cycles) - Coolant=105degC Oil=130degC

Not sure if these are universal and I don't know how much dyno. testing TVR did, but it's very rare for our engines to suffer a heat related failure. This is with a standard coolant mix (50/50) and normal 5w30 oil.

Neill

[VYT]

_deejay_ said:

VYT said:

I believe there is a modification available for the T350 to change the position of the header tank which is supposed to help.

They add a second tank which allows more water to be used. Works really well.

If anybody has a picture of this mod it would be great to see. I guess in my case it would be only prudent to fit to my car. Cheers.

[VYT]

stevend said:

You took a TVR around Phillip Island ? (sigh....)

Steven

Steven

Sure did, a two day super sprint. Going again in Nov, this time with R888 rubber
Managed a lap of about 2 mins with plenty more to come if I could drive! At the end of the pit straight I was travelling faster than I ever had in a TVR before, about 250kmh. Superb track for the T350 but scary.

Bob

[maxx-waxx]

VYT said:

I was travelling faster than I ever had in a TVR before, about 250kmh.

Bob

With the roof panels on or off?

[tail slide]

VYT said:

Going again in Nov, this time with R888 rubber
Bob

The T350 is a track refugee in a smart suit.

You may know already, but you need more neg. camber to get the R888's working well, and you'll be moving around a lot if you're still on standard springs & dampers. I find them a good soft grippy tyre for short sprints on mine, but apparently if you get them really hot for many laps on trackdays they wear quickly (obvious, I suppose).

[VYT]

maxx-waxx said:

VYT said:

I was travelling faster than I ever had in a TVR before, about 250kmh.

Bob

With the roof panels on or off?

Roof panels off, I don't fit with my helmet on and I would worry that they might fly off of their own accord at that speed.

[VYT]

tail slide said:

VYT said:

Going again in Nov, this time with R888 rubber
Bob

The T350 is a track refugee in a smart suit.

You may know already, but you need more neg. camber to get the R888's working well, and you'll be moving around a lot if you're still on standard springs & dampers. I find them a good soft grippy tyre for short sprints on mine, but apparently if you get them really hot for many laps on trackdays they wear quickly (obvious, I suppose).

I figured as much but don't actually know how much -ve camber to put on, Toyo say 3 - 6 degrees front and "some" on the back to prevent the shoulders overheating. In Australia the R888 is a different compound, "GG" I think. This is supposed to deal with heat build up better, recommended tread temperature is 75 - 95 C. I have not changed the suspension at all. Agree it is a bit soft but that will have to be a project for next year I think. Phillip Island is mainly long fast sweeping curves with a couple of hairpins. I found that I could only do one fast lap on the Goodyear F1's before the front end lost grip, even then the second half of the lap felt decidely squirmy.

Bob