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FMIC CHARGE TEMP TESTING

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Old Oct 19, 2012 | 09:49 AM
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Default FMIC CHARGE TEMP TESTING

Anyone tested the charge temps of the budget IC's??

Id like to know how they compare to bigger branded items.

Perrins site lists full testing on both top and front mounts...
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Old Oct 19, 2012 | 11:33 AM
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From: Rl'yeh
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I'd ask Harvey, but he's unwell at the moment.

I think he's done most and was unimpressed compared to Hybrid ones, which he rates.

Mine runs a Hybrid GT2, and usually runs induction temperatures 5 degrees or so cooler than inlet/ambient.
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Old Oct 19, 2012 | 12:38 PM
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From: borehamwood
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Where u fitted your before inter cooler one?
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Old Oct 19, 2012 | 04:52 PM
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From: Rl'yeh
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The temperature probe?

It's set into the pipework just before the inlet/throttle. Tapped it and added some Devcon just to be sure.

The ambient/inlet temp one is sewn to the cone filter body,
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Old Oct 20, 2012 | 08:14 AM
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I did a before an after on my 02 WRX. Inlet temps with top mount (depending on day ambient temps) were avg of 17deg "on the day"

After front mount fitting inlet temps were avg 11deg.

When testing on the tmic day, it was pretty gusty. Testing speeds were between 40-70mph

Fmic testing was nice an sunny early morn. Same speeds same road.

My FMIC is an eBay japspeed

Not dramatic temp drops i know, but I didn't mind paying what I spent for the gains.

I also love the turbo chatter between gears secondly, for when I wanna run bigger power (which I will ) I know I've got a big 4 inch thick bar an plate cooler doin it's job upfront
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Old Oct 20, 2012 | 11:10 AM
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From: Rl'yeh
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It's not just the temperature difference, it's the fact that an FMIC is far less likely to suffer from heat-soak.
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Old Oct 20, 2012 | 02:51 PM
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Originally Posted by alcazar
I'd ask Harvey, but he's unwell at the moment.

I think he's done most and was unimpressed compared to Hybrid ones, which he rates.

Mine runs a Hybrid GT2, and usually runs induction temperatures 5 degrees or so cooler than inlet/ambient.
Whats it doing on full boost?
Trev
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Old Oct 20, 2012 | 03:09 PM
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Originally Posted by alcazar
I'd ask Harvey, but he's unwell at the moment.

I think he's done most and was unimpressed compared to Hybrid ones, which he rates.

Mine runs a Hybrid GT2, and usually runs induction temperatures 5 degrees or so cooler than inlet/ambient.




But what is the true ambient temp? Temp at the 'inlet' depends on where the inlet is - under-bonnet? inner wing? My filter is under-bonnet, fed with air from the front (modified snorkel) and ducting from the foglight cover. When driving the temp at the MAF (via my Scangauge) is pretty close to the charge temp at the throttle body and a bit above ambient (via the outside temp reading on the dash. As soon as I stop, the MAF temp shoots up a hell of a lot due to no cold air being fed to the filter. The charge temp goes up of course but not at the same rate.

JohnD
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Old Oct 20, 2012 | 05:00 PM
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I monitor outlet temps from the turbo compressorwheel pre-intrecooler and I don't recollect the inlet temps affecting these very much. This is with an in wing K&N cone filter. At 1.6bar they are regularly at 137c and when I was running 1.45bar they stuck around 127/128c. Of course the temperature of the air flowing over the intercooler will have a dramatic effect on charge temps.
Trev
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Old Oct 20, 2012 | 08:14 PM
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Has anyone actually tested the cheaper brands against the big budget brands??

This is what i refer to... makes for interesting reading.

http://blog.perrinperformance.com/th...ercooler-test/
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Old Oct 20, 2012 | 09:51 PM
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I'm not going to second guess what Harvey would say but it would be along the lines with quality kit you would have temperature drop but little pressure drop. With the cheaper kit you will get pressure drop and thats the last thing you want.
Trev
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Old Oct 20, 2012 | 10:02 PM
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buy a decent proven front mount and not ebay tat.
job done....
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Old Oct 21, 2012 | 01:06 AM
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I'm pretty sure nobody tested all available FMIC on the market,yes will be good to have proven results which one and for all will clear the questions which one is best and which one is worst

We are run Japspeed FMIC core which we're monitored via Syvecs Logs and ACT sensor has been fitted/installed at Silicone coupler before the Throttle body and temps has been on our one we are seen maximum 38C(20-25C) on the drag strip(Santa pod) after 10-15 drag runs,around 28C(outside temp 25-28C) when we are normal driving motorway and B-roads,33C on track days(outside temp 20-25C)

But we are seen too higher ACT temps on drag strip when outside temps peaked around 36C and ACT has been 40C after 6 runs


Jura
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Old Oct 21, 2012 | 09:17 AM
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Heatsoak is much reduced with a FMIC over a TMIC but not eliminated. With the car stationary or moving slowly the pipework becomes a problem. Has anyone measured the charge temp difference between lagged and unlagged pipework, also when a turbo blanket is fitted/not? And with an under bonnet filter with cold air feed perhaps a fan-driven back up would be worthwhile, although finding somewhere to fit it might be a challenge.
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Old Oct 21, 2012 | 09:49 AM
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Very interesting. But i gather from this no one has ever tested the range of products ever!

TMIC do suffer from heat soak but its more a top end problem with them.

My turbo has a blanket on it which wont make any diff when the car is moving, it reduces the soak when standing still.... every little helps huh....

The initial question of this post is still unanswered.... has anyone tested any FMIC to see what results before and after...?

I see traders slamming the quality of the products they dont sell, IE the cheaper brands, but no actual testing of there own products... that they do sell and claim are better.
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Old Oct 21, 2012 | 10:19 AM
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It's a fair bet no one has ever tested a large selection of FMICs back to back on the same car, and those of us who have fitted one will know why. It's a long job and the mods to the car vary from FMIC to FMIC, so swapping between units would be problematic. With few exceptions serious and irreversible metal and plastic cutting is required.
The traders who make claims for their goods (and knock others) should support this with properly collected data. But most seem to limit their comments to the advantages/disadvantages of Bar & Plate versus Tube & Fin. And even here there are informed opinions in both camps.
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Old Oct 21, 2012 | 11:27 AM
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When I recently installed my Japspeed FMIC I wrapped the 'cold' pipe with heat reflecting tape but left the 'hot' pipe bare as it needs to lose heat by any means it can!
As I did it on installation, I havent compared before and after charge temps. especially static where heat soak is the main culprit.
I did originally plan to use a more efficient (generally accepted on here) FMIC but some issues cropped up and as the cost of Perrin/Hyperflow/APS were ludicrous, decided that at least, the Japspeed item would be better than the TMIC!

JohnD

Last edited by JohnD; Oct 21, 2012 at 11:29 AM.
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Old Oct 21, 2012 | 12:17 PM
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Basically, a top mount can be pants under pressure, as in track use or high boost.
ANY FMIC is better than a top mount on track.
If you have the money, buy a Perrin or APS.
If you don't have the money, a cheap bar and plate can be surprisingly adequate, and certainly better than that tatty top mount from your old Classic.
We tested one 22B fitted with an average condition top mount which was truly shocking in terms of charge temp. Even a quick blast had it hovering on 75 degrees in Summer temps. Fitting a cheapish FMIC dropped it to 30 degrees right away.
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