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Intercoolers: How big is too big?

MrGTST

By MrGTST,
in Engines & Forced Induction

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MrGTST Grand Master

MrGTST

Posted
Posted

Hiya,

I am looking into getting a FMIC for my R33 .... My car is stock barring full exhaust and air pod. I want to get the largest intercooler possible without going past the point of sacrificing performance....

I am looking at the two differnet types of HKS coolers.... One is 600x300x65 and the other is 600x300x100 ....

Can I run the larger of the two coolers without making my car more sluggish ( bearing in mind my next step is an AVC-R with boost increase ) or should I settle for the smaller of the two??

I don't want to have to swap if out later on because its not doing a good enough job but I also am not chasing a huge amount of horsepower...

Advice/Opinions welcome???

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Jay95R33 Grand Master

Jay95R33

Posted
Posted

I've got a 700x300x76 and found no increase in lag from a stock one.

Saying that, I think a 100mm thick core is a bit of an overkill.

60mm to 100mm thick core is a increase of 40% in volume (is that right ?? )

Go with the 60mm and save your $$$ for the AVC-R.

J

Kichigai Enthusiast

Kichigai

Posted
Posted

I've got a custom 700X350X75 and you can feel its adds a little lag on the standard boost. All you need to do is up the boost and you should be fine.

I only got this FMIC as it was selling cheap and I knew it had a good core, otherwise I would have gotten something a little smaller.

Best thing is to have a power goal and have a plan to get the right parts.

Just my 2 cents....

benm Grand Master

benm

Posted
Posted

hahah at BK last Saturday with the Westside boys there was a commonwhore that had a truck intercooler. This thing was the biggest intercooler ive ever seen on my life. You could disconnect it while at the beach and use it as a surf board it was just massive.

He seemed to be getting quite abit of attention, i dont know if it was coz people thought it was fully sic or they just thought he was a knob hah.

I have no idea what size mine is but i know its large enuff (and not aligned in the middle properly arggh)

rev210 Grand Master

rev210

Posted
Posted

stock turbo?

Going circuit racing regularly?

If the answers are 'yes' and 'no' save your coin for something else, the stock cooler is fine.

If you must have a cooler for no other reason than everyone else has one, then get a small one that flows very slightly more than your peak power goal, with some efficiency.

If you want accelleration there are other things you can do.

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