Reason I ask, I can't help but wonder if you would get better efficiency with Evans coolant.

I've no idea what that is!?! just bunged the pink stuff in so I have to winter issues, and burping the system of air is a ball ache!

I'm gonna have to day probably not. Thing is evan coolant has less heat capacity. So say the cooler up front pulls it down to ambient and then it goes into the heat exchanger that cools the charge. The evans coolant can't absorb as much heat as the water could. I'd say a bigger pump and bigger heat exchanger up front would be better. Or an air/air IC. :) Seriously. My air/air setup the charge pipes are gonna be maybe 2' longer than an air/water setup. You could use smaller diameter charge pipes and then you have the same area.

But it won't boil. :)


Or perhaps a mixture of the two?

I might be splitting hairs, but some were talking about how an A/W system is not as efficient at the track; what if you split it 50/50?

I dunno, skip it altogether and put in alcohol. :giggle:

Yeah, but it will never boil anyways, so there's no point. Water has a higher heat capacity then just about any other fluid you'd want to use, so it's pretty much the best. If you have cold weather you'd have to run antifreeze, but i'd run as little as possible as it will hurt the coolers efficiency.

Conceeded.... *kicking the cat*

The biggest issue I keep runing into with the air/air system is the darn plumming of the piping. I wunder as you said if a hybrid system with the A/W to charge cool, and then a second for A/W for fluid cooling?

eh? your A/W system doesn't have a heat exchanger? my god that must heatsoak like crazy

I don't have a A/W system. I am just offering suggestions.

oh well all a/a setups have a heat exchanger to re-cool down the water, it'd be useless without one really

Very cool. OK, so your RHD stock throttle cable goes to the stock TB, then you have your "extension" throttle cable go from there to the BTB? Looks almost like you have "one cable, with just a piece in the middle to expose the cable for the "cam" on the stock TB.

Very nice routing....

So the BTB is basically open slightly while the stock TB is completely closed? Then it would be open fully while the BTB is wide open too?

Hum.... interesting. Maybe it's time to upgrade to a BTB? <G>

Dave,

So with this set up would you put the IAC valve in the stock location or on the blower input BTB?

steelrat, I don't have a BTB... But the principal is identical :) there's 2 distinct throttle cables, using 1 would be very cool but I woultnt want to engineer it!

Oh I also losened the charger TB return spring as the throttle gets a little bit heavier with 2 throttle bodies

Barbycar: the IAC goes in the stock location, it's tidiest and gives the best idle which is half the reason for dual throttles anyway! ;)

Cool.... figured the IAC would be on the stock TB (better idle reactions then).

So which TB are you using? A second stock TB on the blower? Aftermarket? Is it still the same size as the stocker?

So I assume the stock TB, has the TPS on it, for the ECU.... (I know MS In your case), then you have just the throttle cable for the "Blower TB"... and the ecu doesn't care about the electronic position?

The second throttle cable, is that the one that you guys needed to get for a RHD/vs. LHD? Or did you pick up something aftermarket?

On a side note, I was wondering if the bigTB would fit on a 4-rib, I got the impression, that it might be a very tight fit without having the additional space from the 6-rib blower position.

Still, this is very, cool.....

Dave,

I'm using a 2nd stock tb tho it's got a weird non leneir action.the TP sensor is in the stock location, there's nothing on the blower tb :) as you say the ecu is unaware of the 2nd tb so doesn't care it's position

Funny you should mention the BTB actually, I want to DIY a BTB conversion, from what I've seen the 6 ribs don't move much further forward ... I am helped by not having a brake MC in the way mind....

I'm using a 2nd stock tb tho it's got a weird non leneir action.the TP sensor is in the stock location, there's nothing on the blower tb :) as you say the ecu is unaware of the 2nd tb so doesn't care it's position

Funny you should mention the BTB actually, I want to DIY a BTB conversion, from what I've seen the 6 ribs don't move much further forward ... I am helped by not having a brake MC in the way mind....

(I'm slow at following up on this thread.)

richyvrlimited: Thanks for all the info and answering our questions! This seems almost too easy...

the complexity of the system isn't worth it for the small power gains guys. i did one years ago on a turbo swift, it was swapped to an a/a shortly after.