Let the tinkering continue.....

[Greg Roles]

Here's my first air blower, running from the hole behind the passenger headlight blowing across the top of the engine towards the turbo. Hopefully it'll help heatsoak at the lights, will let you know that the thermo says once I get the temp switch for it sorted. Sure moves some air!

I have a second one planned to blow across the turbo, from the inlet side, to try and keep the intake as cool as possible at the lights. I plan both an air pressure switch and a temp switch for them, so it only runs at low road speed and high heat situations, such as the lights.

[POLARBEAR666]

Wouldn't it be more effective to put the blower at back of engine bay and suck the air towards the exit.. that way it would work in concert with the radiator fans when they come on ... they will suck towards back of engine bay in tandem with the nascar blower.

I think the heat soak issue is to do with the intercooler and radiator soaking rather than parts of the engine.

Where can u buy these blowers from anyway cog?

[Greg Roles]

Yeah I thought about extraction, but a plastic fan and turbo heat didn't sound the best combo....anyway it's just zip tied in, so if the thermo tells me it doesn't work, it's easy to move. I do like the look of it though....and it has as much to do with keeping sensors etc from cooking over time ( I'm keeping this car long term ) as anything. Heatsoak is heatsoak, so the more I can "remove" the turbo heat, the better. Keeps the inlet etc cool as well, my idea is it just keeps the hottest air up the top of the engine at idle moving.

From flea bay baby! Just type in nascar blower....

http://cgi.ebay.com/ebaymotors/NASCA...Q5fCarQ5fParts

[gldgti]

Other shipping areas

Items are carefully packed against box beatings, gang drops or other brutal cardboard killers. Air drops we cannot handle at this time. Parachutes are expensive for island deliveries, nothing is built to go underwater for to submarine delivery for now unless you supply the scuba tanks and dummy that will carry it.


Outer space deliveries are priced at $25M, USD at this time. Weight may hold up your order if your living on Mars, please allow delivery times at 5years ETA at this time. Alien's can land and pick up anytime day or night, please call ahead so we can have our camera ready.

Low orbit using an extreme sling shot is possible if your so called local

hows that for competitive shipping conditions!!!

[POLARBEAR666]

COG you dont need to put the plastic blower near the hot area... just put the outlet of the blower down at back bottom of engine bay using a flexible heat resistant pipe, and put the mouth of it that is sucking so that it is near the radiator area.

That way you are sucking air through radiator and intercooler and promoting airflow.... rather than creating higher pressure behind the inetercooler and radiator with a blower pushing air into that area. You wan't to achieve the biggest pressure differential so airflow is promoted.

PS: my mod is going uber well temp wise.. I am always 5' degrees differential between ambient and Intake air temp. Which is great for $12.50 spend.


OH AND .. WARNING DIESEL PORN

[Greg Roles]

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]

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]

You guys are crazy.. Hahaha.

[gldgti]

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]

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]

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]

[gldgti]

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

[POLARBEAR666]

corrected for truth =P
[IMG][/IMG]

[Greg Roles]

Well I finally got offered a great new job, and will have play money again, so project TDI is back on the boiler. Full steam ahead eh Gav?