alltracman78
Active member
How far away is that track from you? I wish I had one closer to me. Maybe I'd get more motivation to get mine back on the road.
A couple of thoughts on your heat situation.
A high flow fan is nice, but unless it has a shroud it only pulls air through exactly the area it covers.
The factory fan may not have as high a CFM but with the shroud it pulls air across more of the radiator surface. Which may give you more total cooling.
Over about 25 MPH fans aren't needed at all. The moving air flow takes over from the fans.
So if you're running hot while moving you have something else going on. If it's only when you're stopped then look at the fans.
Which brings me to my next point.
Air is lazy. It would rather go around things like the radiator vs going through them.
This is why (in part) you have that plastic trim in front of the hood release area. And the engine under covers. And the foam around the radiator.
I see you don't have the trim over the hood release area. Or the engine undercovers. What about the foam?
If this stuff isn't there it's much easier for the air to spill around your radiator instead of going through it and taking the heat with it.
On top of which you have a bigger turbo and 2 exhaust pipes (DP and WG pipes) right behind the radiator all with no heat shielding what so ever. Less air moving through your radiator means all that heat effecting the radiator more.
Those things may not be the only things causing your heat problems (there's a reason Toyota went with the vented hood on their race cars) but they sure aren't helping at all. It might help if you try fixing some of them.
As far as your TMIC, unless it's too small for the turbo (which may be the case for you) it's actually not that bad. It only heat soaks while you're sitting. Once you're moving it's fine. Much more of a problem drag racing vs tracking like you're doing.
I remember the 185 ATA IC actually flowed very well in testing. I would think the ST215/245 ones would do the same.
And adding a FMIC in front of your radiator is only going to block more air flow to the radiator.
For reference I believe when Toyota was racing the ST185s in the Africa rallies they ended up taking off the WTA IC and using the ATA one. They found it was more effective in the heat. This is something I read a long time ago. It's possible it's not true. But when I had my RC engine with the RC intercooler sometimes I missed the response of the original ATA IC, especially in the winter. Touch the gas and it would go. Absolutely no wait.
Obviously not hot then, the point being the small ATA up top does have it's benefits.
I'm not saying you shouldn't use a FMIC, just think it out first.
A couple of thoughts on your heat situation.
A high flow fan is nice, but unless it has a shroud it only pulls air through exactly the area it covers.
The factory fan may not have as high a CFM but with the shroud it pulls air across more of the radiator surface. Which may give you more total cooling.
Over about 25 MPH fans aren't needed at all. The moving air flow takes over from the fans.
So if you're running hot while moving you have something else going on. If it's only when you're stopped then look at the fans.
Which brings me to my next point.
Air is lazy. It would rather go around things like the radiator vs going through them.
This is why (in part) you have that plastic trim in front of the hood release area. And the engine under covers. And the foam around the radiator.
I see you don't have the trim over the hood release area. Or the engine undercovers. What about the foam?
If this stuff isn't there it's much easier for the air to spill around your radiator instead of going through it and taking the heat with it.
On top of which you have a bigger turbo and 2 exhaust pipes (DP and WG pipes) right behind the radiator all with no heat shielding what so ever. Less air moving through your radiator means all that heat effecting the radiator more.
Those things may not be the only things causing your heat problems (there's a reason Toyota went with the vented hood on their race cars) but they sure aren't helping at all. It might help if you try fixing some of them.
As far as your TMIC, unless it's too small for the turbo (which may be the case for you) it's actually not that bad. It only heat soaks while you're sitting. Once you're moving it's fine. Much more of a problem drag racing vs tracking like you're doing.
I remember the 185 ATA IC actually flowed very well in testing. I would think the ST215/245 ones would do the same.
And adding a FMIC in front of your radiator is only going to block more air flow to the radiator.
For reference I believe when Toyota was racing the ST185s in the Africa rallies they ended up taking off the WTA IC and using the ATA one. They found it was more effective in the heat. This is something I read a long time ago. It's possible it's not true. But when I had my RC engine with the RC intercooler sometimes I missed the response of the original ATA IC, especially in the winter. Touch the gas and it would go. Absolutely no wait.
Obviously not hot then, the point being the small ATA up top does have it's benefits.
I'm not saying you shouldn't use a FMIC, just think it out first.