Let the tinkering continue.....

**Greg Roles** · 26-10-2009, 10:43 AM

Interesting link Polar....

It's awesome to read they were still accelerating when the call to back off because of the tyres was given, yet still pulled over 500kph in an oiler. Wonder what it's capable of flat out?

I take your point with the above diagrams mate, and my temp guages will tell me what works best, but I still can't see the single blower on the inside causing any major dramas, remember I'm more worried about engine bay heatsoak, than heating up the intercooler a little at the lights, the intercooler drops back down real quick on moving, whereas the tappet cover area stays hot for ages. At least that's what I've seen this far on testing. The blower is all about the lights.

Don't fret, I'm a long way from finished tinkering!

**benough** · 26-10-2009, 01:00 PM

Originally Posted by cogdoc

Interesting link Polar....

It's awesome to read they were still accelerating when the call to back off because of the tyres was given, yet still pulled over 500kph in an oiler. Wonder what it's capable of flat out?

Well if the salt flats aren't long enough for it to hit 6th then they need to take it to Ehra Lessein

I would love to wind up the GT out there, haha!

**Preen59** · 26-10-2009, 05:13 PM

You guys are crazy.. Hahaha.

**gldgti** · 26-10-2009, 05:22 PM

i think that you'd almost be better off putting another switch in for your radiator fans... reason being is that they are already in situ, highly effective and dont take up any more space or weight.

with my IC setup (having it dangle out the front) i have no probs with IC heatsoak, however i have noticed that i get better pickup off the line around town if i keep the a/c on (which keeps the radiator fans running) when compared to having it off.

if you put hte window down you can feel the hot air coming out from under the car when the rad/fans are on, so they are hugely effective.

if you have an auto switch for the radiator fans to come on when stopped at lights, and another manual toggle so you can turn that feature on or off, you'd be sweet

put another limit swith on it to turn the fan off as your foot is applied to the throttle, so as you begin to accelerate the alternator load dissappears.

**Greg Roles** · 26-10-2009, 05:39 PM

The plan is to have the fans, and this extra cool air blower to help move hot underbonnet air, running off a temp switch and an air pressure switch in series. Radiator fans will still operate as per stock as well.

Stop at the lights, when the temp hits a set point, it all turns on, and stays on till you start to move.

That combined with my smart intercooler spray, and the clever inlet ducting Polar has recently proven works so well, I think our temp problems are minimised with the stock setup, and ready for some serious tuning.

I'll be measuring the whole process with my multi probe digital temp guage, and I'll basically do what works best. All theory at this stage...

**Greg Roles** · 01-11-2009, 02:40 PM

I've bought the Jaycar adjustable temp switch, and a liquid level sensor for my windscreen washer bottle, and am in the middle of soldering the kits together.

Also won a HKS turbo timer off e-bay for a whopping $20, so there's my fans on parking / OTP inlet shutoff taken care of. You can tell I'm a guru with the camera in this shot...but at least with this baby I'll be 5% Paul Walker in my oiler.

Also got one of the "Wayne" angle blocks off VW vortex, designed to take the lambda probe out of direct exhaust flow. With this installed it supposedly won't throw errors if there is too much O2 in the exhaust once the EGR is deleted. It's quite a chunk of metal, certainly bigger and heavier than I was expecting. Polar would never do this mod, it's a bit over 200 grams!

Could have made this myself, but I figured it best to stick with the tried and proven on this "tweak".

**Greg Roles** · 01-11-2009, 02:50 PM

**gldgti** · 01-11-2009, 04:06 PM

ok... so now the lambda probe is out of the exhaust stream, but it will stay hot and i suppose given the chance soot buildup in the little chamber there may aid in a bit of combustion, allowing the lambda not to register the excess oxygen so readily... hmm