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R32 Gtr Intercooler Onto A R32 Gts-t Too Big?

335

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335 Rising Star

335

Posted
Posted

Hello

I would like to know if a R32 or 33 GTR intercooler is too big for my R32 GTS-T. I mean is the intercooler too big for the size of my engine? Will it be better if I go with a intercooler made for my size engine? I do not want lag from putting on the GTR intercooler. My engine is stock, except I am going to put a RB25 turbo onto it. I have intake and exhaust done.

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limpus Mentor

limpus

Posted
Posted

Its not just the cooler but also the length of piping...just bung any proper core on there...you're not going to notice much difference between the 2...but that core in your link looks like its seen better days...

And you will never get rid of lag on a rb20...

335 Rising Star

335

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Posted
Its not just the cooler but also the length of piping...just bung any proper core on there...you're not going to notice much difference between the 2...but that core in your link looks like its seen better days...

And you will never get rid of lag on a rb20...

Not a lot of lag? The one in the pic has all of the piping, the gtr one I can get from my friend doesnt have any piping.

bubba Grand Master

bubba

Posted
Posted

To make the best install of the GTR cooler you'll need all the piping.

I put a GTR cooler/bov setup in my 32gtst and the fit is excellent, a little bulkier under the guards but a much nicer install than shitty china setups. Only had to drill two small holes for the vacuum lines on the bulkhead fittings, everything else bolted straight up.

Using GTR piping setup with your stock manifold will be pretty crappy though. China piping tends to be 2.5" which suits your stock throttlebody whereas GTR piping is like 3.25" and the plenum inlet is a similar size (I have a custom GTR plenum with a Q45 t/b on the front so it suits the 3.25" piping).

335 Rising Star

335

Posted
  • Author
Posted
To make the best install of the GTR cooler you'll need all the piping.

I put a GTR cooler/bov setup in my 32gtst and the fit is excellent, a little bulkier under the guards but a much nicer install than shitty china setups. Only had to drill two small holes for the vacuum lines on the bulkhead fittings, everything else bolted straight up.

Using GTR piping setup with your stock manifold will be pretty crappy though. China piping tends to be 2.5" which suits your stock throttlebody whereas GTR piping is like 3.25" and the plenum inlet is a similar size (I have a custom GTR plenum with a Q45 t/b on the front so it suits the 3.25" piping).

You put a GTR plenum onto your RB20? How? How much was that?　Does it help at all? So I should look for cheap China R32 GTS-T piping or GTR piping? How can I do the piping?

bubba Grand Master

bubba

Posted
Posted
You put a GTR plenum onto your RB20? How? How much was that?　Does it help at all? So I should look for cheap China R32 GTS-T piping or GTR piping? How can I do the piping?

The engine in my 32 is an RB25/30 (R32 RB25DE head so intake plenum bolt pattern is the same as RB20), I had a custom plenum made using the GTR chamber welded to stock runners.

If you want to use the GTR cooler then your best bet is using GTR piping and a forward facing plenum (search for KU Engineering) with a bigger throttlebody.

If you use the GTR cooler with stock manifold you will have to step from 3.25" down to 2.5" and run the normal "across the radiator" pipe that most aftermarket kits utilise.

GTScotT Grand Master

GTScotT

Posted
Posted

I think it is important to note here that there are no pipping kits to mate a GTR cooler to a GTST.

Using a GTR intercooler WILL require some form of custom pipework.

My plan was to use GTR cooler along with a china 2.5" pipping kit ane minorly modify the ends that meet the cooler. Will cost alot more by the time you buy the GTR cooler and the question will be raised, why? Performance will probably not be notable at sub 300rwkw and from what Ive seen an upgrade will be in order before getting to 400.

My 2c.

Marlin Grand Master

Marlin

Posted
Posted

Mike, just buy a complete front mount kit from Just Jap.

You'll be able to fit it yourself, as you don't seem to be a guy with a heap of knowledge about these things (no offence intended, an observation).

I run a JJR one on my tarmac rally car, has plenty of flow for 230+ RWKW (much more than you have now), and is the right price, with everything you need :D

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