Re: [DML] Intercooler
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Re: [DML] Intercooler



Hi Nick

It's definitely best to include an intercooler of any sort, although 
less important on a supercharged engine. The reason you never get a 
strait answer is because it's true to say "the bigger the better" (until 
you get so big as to increase lag, but you'll hit a size limit before 
then usually)

However, you don't have a ready supply of air for an air-to-air 
intercooler, unless you sling it under the engine. The Alpine GTA V6 
Turbo has a decent intercooler but a pathetic airflow over it, and many 
of the GTA guys are now jacketing theirs and pumping the water to the 
front of the car and installing a radiator. The measured difference in 
charge temperature is massive, and the biggest single advantage of a 
chargecooler is the thermal mass. Even if the charge temperature rises 
on an accelleration run, it cools back down again within seconds, unlike 
an intercooler (paraphrasing one of the GTA guys measurements). Some of 
the best off-the-shelf chargeoolers are now coming out of Australia from 
PWR performance - they call them "barrel-coolers". I suggest you look 
them up :-) http://www.pwr.com.au/

FWIW the twin turbo on #2727 has two intercoolers almost exactly the 
same size as yours and they are where the exhaust back box would be, if 
it had one.

http://www.delorean.co.uk/DSCN2235.JPG

Martin

Nick wrote:

>Hi,
>
>I have a question that i have had trouble getting a straight answer 
>for and hope someone here can help (i ahve asked lots of so called 
>experts!)
>
>I have decided that i would like to fit an intercooler in with my 
>supercharger as the intake air temp is currently running approx 30-
>40 deg c above ambient air temp. The most convienient size 
>intercooler that i can fit in is an aftermarket MR2 intercooler. 
>200mm x 200mm x 100mm core with a thermo fan to draw the air through 
>it. It would be mounted near the current air inlet hole that enters 
>the engine bay.
>
>My Question is....Is an intercooler that small actually going to do 
>anything (bearing in mind it will run a thermo fan also) or is it 
>too small and cause a restriction and limit boost?? Note the MR2 
>turbo is probibaly is a higer horse power car.
>
>Everyone you speak to seems to stick by the saying 'any intercooler 
>is better than none' but is this true ? ? ? ?  The MR2 intercooler 
>will have the same size inlet and outlet as the supercharger (3 
>inch).
>
>I have just upgraded the supercharger to an Eaton M90.
>
>Is there a formula to work out the flow rates etc etc ? ?
>
>Cheers, Nick
>
>  
>








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