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Location:
Ipswich
Registered:
October 2003
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Cheapo intercooler idea
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Thu, 23 September 2004 15:31
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I have 1 series 5 rx7 intercooler sitting here, and can probably get another fairly cheap, and was wondering whether i'd suffer any considerable pressure drop in cutting off the end tank from one side of each, and having them welded together?
From what i've read, these cores are quite good (from an autospeed article) and I figure if the pressure drop is negligible, i'd end up with a decent sized cooler for < $100.
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Location:
Adelaide
Registered:
September 2003
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Re: Cheapo intercooler idea
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Thu, 23 September 2004 21:55
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Run them in paralell and the pressure drop will be even less. Dont run them end to end.
If the tank design is good, it will work well
Cheers
Michael B
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Location:
Ipswich
Registered:
October 2003
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Re: Cheapo intercooler idea
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Fri, 24 September 2004 00:33
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Hmmm...a possibility, but it would seem to negate my "cheapo" mandate  I'd need some sort of Y-pipe (x2) and extra piping?
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Cheapo intercooler idea
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Fri, 24 September 2004 00:35
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He means something akin to what Norbie did with two 2JZ intercoolers. Get new tanks made from them and run them in parallel:
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Location:
Brisbane
Registered:
May 2002
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Re: Cheapo intercooler idea
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Fri, 24 September 2004 00:38
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What an ugly piece of shit.
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Cheapo intercooler idea
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Fri, 24 September 2004 00:39
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Haha, but it was massif! How much did it cost to get the new tanks incedentally? It's working atm right, you fixed the leakin?
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Location:
Brisbane
Registered:
May 2002
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Re: Cheapo intercooler idea
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Fri, 24 September 2004 00:59
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Yeah leaks are fixed now. I know a guy who runs a metal fabrication shop, he welded the extra supports on the cooler for $50 from memory. The original job cost me $280 plus the cost of the cores ($250 each).
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Location:
VIC, Sth Frankston.
Registered:
July 2003
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Re: Cheapo intercooler idea
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Fri, 24 September 2004 02:16
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How well does your parallel cores setup work Norbie? I've been thinking about grabbing two smaller cores from something...
Cheers,
James
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Location:
Brisbane
Registered:
May 2002
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Re: Cheapo intercooler idea
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Fri, 24 September 2004 02:39
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Works extremely well... 305rwhp with stock turbos. I haven't got around to measuring pressure drop or inlet temps, but I'm seeing 18psi at the manifold and after a good flogging the intercooler outlet pipes are cool to the touch (inlet pipes are red hot), so that would suggest it's doing its job quite nicely.
In theory the pressure drop across the core should be half that of the stock JZA80 core (which is known to flow quite well), however if the cores had been joined in series the pressure drop would have been doubled. That's why joining two cores in parallel is the way to go.
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Location:
Sydney
Registered:
July 2004
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Re: Cheapo intercooler idea
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Sat, 25 September 2004 11:48
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I like the idea of a cheap but decent intercooler, but isn't that about the same money that you could get a GTR core for? Obviously it works well but it's just a query.
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Location:
Carlingford, Sydney
Registered:
May 2002
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Re: Cheapo intercooler idea
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Sat, 25 September 2004 12:34
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just go buy 1 of the millons on ebay
cheap as chips and flow really well
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Location:
Brisbane
Registered:
May 2002
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Re: Cheapo intercooler idea
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Sun, 26 September 2004 08:24
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Yep that would work too.
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I supported Toymods
Location:
Sydney
Registered:
August 2002
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Re: Cheapo intercooler idea
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Sun, 26 September 2004 16:24
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from about $450 depending where you shop...
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Location:
u.s.a. south
Registered:
April 2004
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Location:
brisbane
Registered:
May 2003
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Re: Cheapo intercooler idea
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Mon, 27 September 2004 06:38
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I know the Garrett 'race' series bar and plate intercooler core, 600x100x300 sells for around $650-700... Surely this would have been a better starting proposition for custom tanks etc, then spending $500 on second hand cores???
With the availability of these cheap coolers atm, unless you are chasing big hp (500+) They should be more then sufficient, as a cheap alternative to doing it properly....
| Norbie wrote on Fri, 24 September 2004 10:59 |
Yeah leaks are fixed now. I know a guy who runs a metal fabrication shop, he welded the extra supports on the cooler for $50 from memory. The original job cost me $280 plus the cost of the cores ($250 each).
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Location:
Brisbane
Registered:
May 2002
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Re: Cheapo intercooler idea
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Mon, 27 September 2004 09:41
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I didn't know new cores were so cheap these days. I investigated that option when I got my cooler made, but this was ~3 years ago and things were obviously different then; there was just no way I could get a cooler of that size made for less than what I paid.
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Location:
Sydney
Registered:
April 2004
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Re: Cheapo intercooler idea
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Mon, 27 September 2004 13:17
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i cant get over how cheap they are aswell,on ebay a supplier has trust coolers for about 350..i paid 700 for mine 3 years ago...
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Location:
Adelaide
Registered:
September 2003
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Re: Cheapo intercooler idea
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Mon, 27 September 2004 21:54
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Re the cheap coolers - I was talking to Dave from Autosprt Engineering (top mob in Adelaide), and yes, there are heaps of cheaper cores now as they are being made in China and they are really starting to get a good supply going.
Dave offers all of his customers the option of a cheaper core - I think the saving is about $300 from memory.
But remember, not all cores are equal - will be interesting to see what the comparison in quality and performance vs price actually is
Cheers
Michael B
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