Aftermarket Intercooler using Standard piping

[SeriesIIGTST]

Sydneykid, what's your opinion on using the standard piping vs full piping with FMIC's?

[summoner]

whats price of a forward facing plenum? and can they be used with the stocko turbo without a negative effect?

[rob77]

The reason I chose the trust kit that uses the stock pipes was for ease of install and I didnt want to go to the expense of the greddy plenum, as I've seen a couple of high end rb25det still using the stock plenum. I think the greddy plenum gives little gain for the dollars spent, around $1000 to buy I think.

[Gradenko]

summoner, Hills in SA make a nice one for around $800 with tuned bellmouths etc. Any negative effects with the stock turbo really depend on the chamber volume. The bigger the volume to fill, the longer it'll take for the stock turbo to pressurise it and the worse response will be.

I heard from one source that the rough rule of thumb for ideal plenum volume is 1.5 x engine capacity for a circuit car. The 5L+ drag style plenums far over shoot that mark, and the factory RB25 ones are a tad small at 2.77L. We need something inbetween (~3.5L for a RB25).

[APA]

greddy plenums are between $1500-$2500 fitted i think i can't remember exactly

grandenko raised some good point that i wanted to raise as well it's all good

series II gtst:- you wouldn't have to worry bout police inspections, coz intercooler aren't illegal so their ain't really such a big deal in not using stock piping and also if you did wanna get the car back to stock you would change the intercooler would ya? you'd wanna sell it with the intercooler right?

adrian

[Stephen Thorpe]

Some of Mr Enforcers work below,

about $1500 for full kit, series one and two front bar type available!

[Cake]

SeriesIIGTST

decided what intercooler setup you are gonna get yet?

[SeriesIIGTST]

bOO5t, I was thinking of getting that Trust kit through Taka's as suggested earlier in this thread. The one with end tanks 32 and 33 or whatever it was. However, cost of rebuild is gonna wipe out my intercooler funds.

I wonder if anyway is interested in a group buy further down the line?

[Anquetil]

Originally posted by SeriesIIGTST

I wonder if anyway is interested in a group buy further down the line?

I'd be in for a V-SPL group buy.

A few weeks ago I got a price on V-SPL from Nengun $1250 delivered (600 X 276 X 76)

[Roy13]

Guys i'm not sure how well you have looked into this stuff but i have done some extensive testing ON ROAD. I have the cooler that plumbs back to the standard piping and you'll find that you loose a heap of bottom end punch from 2700rpm to 5000rpm and will only gain HP in 4 gear between 160 and 190 kph. So unless you are using the car on a duno all the time, are installing bigger turbo and or computer a front mount is only good for the wank facter! Testing done on an R33 and SR20 180SX.

[SeriesIIGTST]

Roy13. How can you substantiate this? Everyone that has ever bolted on a cooler of decent sizes (read 600x300x67) that is a half decent core, has gained ample horsepower. How big was the cooler you were testing with? If it was thicker than about 80cm then you're probably right due to the area the air has to cover inside the cooler. If I read this right, are you saying that by making the air do a 180 degree bend at one end, you are cutting masses of power out. Piping is approx the same length for both types of coolers (standard vs aftermarket piping), if size is the same, then true, the standard piping would be slightly more restrictive due to the 180 but I can't say that'd it'd only be making power over 160km/h. Plus, with a decent tune (if you look at my specs anyway, I have an SAFCII) i'm sure there will be bulk horsepower as that is what everyone else has found.

As I haven't road tested myself, I'm not saying you're wrong but i'm saying, yes, I have done a lot of reading and there does not seem to be any negliable effects of fitting an FMIC as long as it's correctly sized.

[Roy13]

Ok to try and make my comments more useful i am using a 450x300x76 with std pip diameter approx 61mm running 10.5 psi with both coolers manual R33. I am making my comparason to several roll on drags with a 187 rwkw auto LS1, on the same stretch of road.

My piping doesn't make a 180 deg turn as i have it running up into the hollow of the quarter gard in front of the wheel to make a smooth turn around.

From 50kph in 2nd with the std cooler i can lurch forwood harder he pulls away a little in 3rd he pulls half a car between us then in 4th i can only retain the same gap till the speed cut!

From 50kph in 2nd with the aftermarket he instantly pulls away harder then in 3rd he can still pull half a car between us but once in 4th after about half a second boost builds up and i can go from 1/2 a car behind to my tail inline with his nose then the speed cut hits and he smokes me.

I have been driving with the std cooler for a while now due to the extra towyness around 2700rpm.

[rs73]

I'm planning to use bolt on replacement turbo to miminise custom fabrication and tedious installation. Car is daily driver so wont go something like aftermarket plenum as around 200rwkw is what i'm only after. So with this in mind, I'd suppose this type of fmic with stock cooler piping is sufficient for me?

[craz0]

quoted from perfectrun.com.au

*In the table below, the TYPE of each intercooler kit stands for following things.

G---More capacity, but the same style and location as factory intercooler.

B---Bigger and more capacity than genuine, and will be installed in front of the radiator.

V-SPL---High efficient intercooler kit for light-modified cars.

R-SPL---High performance intercooler kit. Specially designed core construction offers maximum cooling performance for high boosted and high powered cars.

R-SPL HG---In addition to R-SPL performance, the kit comes with buffed side tanks and buffed all aluminium pipings to offer shiny show-car-like style.

ECR33 RB25DET 8/93-5/98

G / R-SPL 12020070 192 x 250 x 119mm A$1356 Suitable for genuine turbo and also GReddy turbo kit

B / R-SPL 12020071 A$3442 Suitable for genuine turbo and also GReddy turbo kit. To install this product, front bumper rainforcement, etc.. need to be modified. Not for the one with GT Auto Spoiler.

B / V-SPL 12020078 240 x 600 x 76mm A$1634 Suitable for genuine turbo and also GReddy turbo kit

B / R-SPL HG 12020077 240 x 600 x 76mm A$2051 Suitable for genuine turbo and also GReddy turbo kit

B / R-SPL HG 12020150 276 x 600 x 76mm A$2399 This product needs to be installed with GReddy Surge Tank Kit (Intake Plenum).

B / R-SPL HG 12020151 294 x 600 x 115mm A$2920 This product needs to be installed with GReddy Surge Tank Kit (Intake Plenum).

B / R-SPL HG 12020152 276 x 600 x 76mm A$2051 OK for automatic transmission model.

Hope it helps

[rs73]

Like this one from uniqueautosports but they are only 450x250x80. $1495 for the kit.

Excuse me for bringing this thread alive again.... but I found that for similar

price you can get ARC M073 series intercooler that uses std piping, very stealth.

Area size is slightly larger than the size above, but a bit thinner.

(470x260x70)

ARC Part No:

For S1 R33 M073ECR33F03

For S2 R33 M073ECR33FM03

No plans for me to get a fwd facing plenum, and only planning to run around 1 Bar of boost.

[Bass Junky]

SYDNEYKID....

Sydneykid, what's your opinion on using the standard piping vs full piping with FMIC's?

??????

Just curious.....

[yogi000]

I wanna put a FMIC on my car but i dont want to cut the fins in the front bar so you have clear view of the intercooler, i want it to be covered up if possible. Anyone installed a FMIC without cuttin the fins???

[nitemare5]

i think you still need to chop it the inside of bar, so that there is clearance to fit the fmic. it's alot easier just chopping the 'fins' off then cutting into it alittle bit to shave some of it off. You could just use mesh to hide it it if you wish. Also covering up the fmic would make it less exposed to the air, which really defies the purpose of the front mount, which is to maximise the exposure to cold air.

[rs73]

How many % of less air would yield in noticeable performance loss on the street anyway?? I don't think it's such an issue whether putting a mess to hide it or not. air will still get through, unless u wanna run 36psi at constant race pace maybe it will make a huge different...

Has anyone dyno proven their FMIC with wire mess in front of it and without?

[hoo@h]

so with a FMIC, u will really only see power gain at high rpm compare to a stock intercooler?

does that mean if i have no intention of doing any track work, there's really no point spending that 1k -2k on a FMIC?