Toyspeed.org.nz Message Board

by **mister_two** » Mon Jan 17, 2005 11:08 pm

Saw a few MR2 doin this mod , is it worth it?
and what sorta series RX7 intercooler is best?

cheers for the input guys

OMG so shiny! · by **Dell'Orto** » Tue Jan 18, 2005 12:17 am

Series 5 if you can find them, but series 4 ones do well

by **MrBob** » Tue Jan 18, 2005 1:03 pm

I have a couple if you want to buy them

by **Pies** » Tue Jan 18, 2005 9:33 pm

mrbob: prices? are they top mount or side? or boot?

by **MrBob** » Wed Jan 19, 2005 10:02 am

pies_the_pirate wrote:mrbob: prices? are they top mount or side? or boot?

hey, ones off a s4 and ones off an s5 (same cores, slightly different tanks). Neither have been fitted to another car before. I think it would fit well in the standard location on the MR2 tho.

$100 each

by **Pies** » Wed Jan 19, 2005 6:24 pm

are they much better than standard?

id be keen on the 5 if u stil have it.

OMG so shiny! · by **Dell'Orto** » Thu Jan 20, 2005 1:30 am

Anything is better than the stock ones :lol:

The S5 core does flow a bit better than the S4 too, but both are very efficient.

by **fivebob** » Thu Jan 20, 2005 1:38 am

Mmm, Boost wrote:Anything is better than the stock ones

Actually the stock core is quite efficient, and takes a long time to heatsoak with good recovery. However it's let down by the pressure drop. :evil:

Website · by Al » Thu Jan 20, 2005 5:47 am

fivebob wrote:Actually the stock core is quite efficient, and takes a long time to heatsoak with good recovery. However it's let down by the pressure drop.

I wonder how much boost my ct20b is actually pushing at an indicated 18psi at the manifold

by **mister_two** » Thu Jan 20, 2005 9:47 am

So would this bolt on straight using the old piping or new plumbing should be made? what u guys reckon?

OMG so shiny! · by **Dell'Orto** » Thu Jan 20, 2005 10:45 am

Nope, you need new piping, and/or new end tanks, depending on how neat you want it.

fivebob wrote:Actually the stock core is quite efficient, and takes a long time to heatsoak with good recovery. However it's let down by the pressure drop.

You dont know the flow figures of one by any chance do you?

by **MrBob** » Thu Jan 20, 2005 11:45 am

pies_the_pirate wrote:are they much better than standard?

id be keen on the 5 if u stil have it.

yep, still have it. The efficiency is meant to be as good as, or better than a vr4 one

by **MrBob** » Thu Jan 20, 2005 11:46 am

mister_two wrote:So would this bolt on straight using the old piping or new plumbing should be made? what u guys reckon?

will not bolt straight on. Will need to change the outlets on the tanks and make up some mounts.

by **Twolitre** » Thu Jan 20, 2005 12:48 pm

You guys should do a search of autospeed.com
They did quite a comprehensive comparison of used japanese model intercoolers and if I recall correctly the series 4 IC is actually better than the series 5 due to the end tanks or something like that.

by **TygerTung** » Thu Jan 20, 2005 12:59 pm

I would have thought a water to air intercooler with the radiator front mounted would be a good idea on an MR2?

by **dragonx** » Thu Jan 20, 2005 1:39 pm

TygerTung wrote:I would have thought a water to air intercooler with the radiator front mounted would be a good idea on an MR2?

its cost a few more cents than an old rx7 IC
water lines, pump, W/A IC and rad and plumbing

i wouldnt waste my time going from stock to a rx7 unit,

by **fivebob** » Thu Jan 20, 2005 1:58 pm

Mmm, Boost wrote:Nope, you need new piping, and/or new end tanks, depending on how neat you want it.

fivebob wrote:Actually the stock core is quite efficient, and takes a long time to heatsoak with good recovery. However it's let down by the pressure drop.

You dont know the flow figures of one by any chance do you?

No I do't have any flow figures, IIRC pressure drop was around 2.5psi at 17psi manifold pressure, but I haven't got the datalogs on this computer so I can't confirm it.

by **Lekz** » Thu Jan 20, 2005 2:26 pm

when they replace the intercooler with an rx7 can it fit to the SW20? are they planning top mount of front mount?

by **aesc** » Thu Jan 20, 2005 2:54 pm

Leks wrote:when they replace the intercooler with an rx7 can it fit to the SW20? are they planning top mount of front mount?

Side vent mount

by **Lekz** » Thu Jan 20, 2005 3:02 pm

ooo'k... lol thanks for that i guess it would b hard for an mr2 to have a front mount...

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RX7 Intercooler on SW20 MR2

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