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intercooler size

Posted: Thu Dec 27, 2007 10:53 am
by kula
heya,

with the rediculous search function here,
i had to post asking what size intercoolers fit in an NAs front bar.

whats the biggest?

Posted: Thu Dec 27, 2007 8:19 pm
by Techno
Why do you want the biggest one?? What have you planned?

Juffa had a big one but it blocked the radiator too much.

Best to go for the most efficient rater than the biggest I think.

Posted: Sun Dec 30, 2007 9:19 pm
by kula
no AC for me.

is 600x300 too big?

Re:

Posted: Mon Dec 31, 2007 8:02 am
by Techno
kula wrote:no AC for me.

is 600x300 too big?


Where's Juffa ............... he has practical experience on ic size for the NA.

Are you putting in a bigger radiator?

Posted: Mon Dec 31, 2007 10:01 am
by kula
a 37mm koyo would be my choice if i had to.
but i wasnt planning to at stage 1.

Posted: Mon Dec 31, 2007 11:32 am
by Juffa
As Techno mentioned I was running a large IC for sometime. It came with the 2nd hand DIY turbo kit I bought. It is 600x300 in size. I had to adjust some of the air cond components to get it to fit. It blocked the air cond condensor and my PWR radiator. At air temps of 30-35c or less I did not have any real issues, however once summer really kicked in I found that I had to turn the air cond off otherwise the coolant temp climbed from the 88-92c norm to over 110c. I also found the intake air temp climbed as well, but I can't remember the numbers. It should also be noted that I had to remove and leave off the under engine tray to fit the IC, as well as the black plastic bracing that sits in the mouth, behind the front bumper. It is a known fact (see the big forum) that removal of the under engine tray can adversley impact the coolant temp, especially if it was already border line with a dodgy radiator or other air flow issues.

Early this year I bought a smaller IC off Fatty. It is around 600x180 in size. I was able to re-fit the under engine tray and the black plastic bracing that sits in the mouth. The air cond condensor and radiator are no longer blocked and so far (fingers crossed) the coolant temp has not risen above 92c. This was with ambient air temp of around 35c. The air intake temp is bit higher with the smaller IC, but still well within acceptable levels, so far around 5c above ambient air temps.

It is forcast to be 42c in Melb today so I plan on taking Tweety for a drive and see how she fares.

Hope this helps.

J

Posted: Mon Dec 31, 2007 12:34 pm
by kula
thanks for the feedback..

a delta fin style core might help with flow to the radiator.

Re:

Posted: Tue Jan 01, 2008 6:43 pm
by Sean
kula wrote:thanks for the feedback..

a delta fin style core might help with flow to the radiator.


Mate getting the piping to route nicely with a 600 wide core will be a challenge, a few have don it, but it's a lot of work for little to no benefit.

A frontmount from a U13 bluebird is perfect, can handle the heat to run 300hp at the wheels too.