My build is very simple I am putting a 5.3L LS type truck engine in my 1965 GMC 3/4 ton truck with an ebay GT45 turbo making at a max 10 pounds of boost. For the most part it will live its life at 5 pounds of boost. Now since I'm a former racer I tend to build the rest of my system as though I were building it to handle 1000HP.

My question concerns the fluid in an air to water intercooler. Since I'm not going to race this I have no need of a super sized tank for the fluid to reside. I was thinking of a radiator only mounted low up front with electric fans for extra cooling when I'm in sit and go traffic or really hot days.
So for fluid I was thinking about one of those long life radiator fluids that don't break down and can handle high heat or am I over thinking this and should just use water with water wetter?

 

best way to go is to put a 5 gal tank in the trunk . Run the pump on a boost switch so its not running constantly .

 

I run toyota long life coolant in my w/a system with a bottle of water wetter. I chose it because it is a deep red color, and easily distinguishable between any other coolants you might put in your engine. I figured if I ever had a leak at the engine radiator or the w/a heat exchange, i didn't want them to be the same color and end up sitting there guessing which system was leaking.

 

At 10lb/boost you don't even need a intercooler. I run 10psi/boost thru a blow thru carb and make 820rwhp. I do datalog my intake temps and even on a 105 degree Texas Saturday my intake temps go from 110 at the line to 155 across the finish line. No intercooler needed. Now at 25lbs/boost, that's a different story. But if you plan on a low boost setup I wouldn't waste my time or lot's of money on a unnecessary piece of equipment. And you do not have cut up you car and try to fit 30+ feet of tubing coming and going to the turbo and back.

 

But your drag racing and I will be street driving and I've sat in traffic for up to an hour in 80-90 heat.

 

Car is 99% street car, just go to track once or twice a year for car club meets and shows. I drive it to 289 each way miles to my brothers house in Houston and get 14.7 MPG average unless some punk in Mustang thinks he fast. And I have to sat in Dallas traffic for hours to. I turbocharged my car in 2001 and at 10lb/boost I am plenty happy/ still non-intercooled, stock looking and not noticeable , with the turbos and 3 inch exhaust you can't hear it coming down the the street. Some guys want loud, Some don't. I like the stock look and sound until the 4 barrel CSU Carb opens up.

 

Thank you for going into more detail. I guess I'll cross that bridge when I get there then thanks again.

 

Necessary? No but lower iat's will make more power. I don't have a clue where you came up with 30' of tubing and having to cut the car up to run an intercooler. It could easily be done with 6' and a couple holes.

 

Basic Centrifugal Supercharger inter-cooler system (from the two manufacturers) should handle your needs just fine and as was mentioned with minimal lengths of plumbing.
The Bosch pump will move around 6 gallons of water a minute.

Tom Vaught

 

Just plain old water will transfer more heat, that is all you need

 

bobhatton, I hope he did something with the car after 6 years from the last post by me.

Tom V.

 

Projects take some time to complete, well my ones do all the time

Bob