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one car - two intercoolers!?

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Old 21 October 2005, 05:06 PM
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Scooby-kid
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Lightbulb one car - two intercoolers!?

hi,
this question may be very stupid, with a very easy answer:

SUBARU - TMIC
EVO - FMIC

Subaru - tmic to prevet turbo lag yes? due to the position of the turbo (rear of the engine?), it would be beter to have short pipe work between the ic and turbo.

Evo - fmic and more horsepower, yes? (sorry, dont know allot about evos)

my question is this: why cant you fit a tmic to a scoob = not much turbo lag (short pipework), And a fmic = lower charge temps = more horsepower and join the pipework somehow by the turbo. So you are lowering charge temps by having the fmic, and also getting air to the turbo quickly and keeping the 'kick' you get in a Scoob when the turbo kicks in.

OR

Why cant you have one of those tmic like they have on a wrc car, sort of at the front of the engine bay, thus having low turbo lag, and not much heat soak!?

Scotty

P.S. Sorry if it was a very stupid question!
Old 21 October 2005, 05:13 PM
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Scooby.Newbie
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Isn't that kind of along the lines of the TSL ChargeCooler kit ?


Edited to add link
http://www.tsl-motorsport.co.uk/news...0007&detail=12
Old 21 October 2005, 05:20 PM
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Dick Cheese
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Originally Posted by Scooby-kid
this question may be very stupid, with a very easy answer:
There are no stupid questions, only stupid answers. The first part of your question about having two intercoolers would give even worse turbo lag because of the amount of ait which would need to be compressed in the intercoolers and pipework before the desired pressure is reached. The less air, the less lag.
Old 21 October 2005, 05:37 PM
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davedipster
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As above way too much pipework.
Don't evo's have the exhaust manifold at the front of the engine bay, hence FMIC. A FMIC on a scoob must be madness.
Old 21 October 2005, 05:40 PM
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davedipster
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Also isnt the heat of the inlet air detected by a sensor @ the MAF, not after the turbo.
So a std or ppp'd car will still ramp back even with that new tsl chargecooler, cos the sensor is before that thing. So on a hot day the ecu will still ramp back.
Or does it only do that when things are REALLY HOT.

Waiting to be proved wrong by someone who knows something

dipster

Last edited by davedipster; 21 October 2005 at 05:43 PM.
Old 21 October 2005, 06:22 PM
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Lightbulb

Originally Posted by Dick Cheese
There are no stupid questions, only stupid answers. The first part of your question about having two intercoolers would give even worse turbo lag because of the amount of ait which would need to be compressed in the intercoolers and pipework before the desired pressure is reached. The less air, the less lag.
hmm, i didnt think of that.

Anyone know if you could put the WRC type ic in a raod car, as in a WRC i know the engine is very low in the engine bay...
... would it fir in a standard engine bay?!


Scotty.
Old 21 October 2005, 08:14 PM
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remfanuk
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just a little aside...but these kits that tilt the intercooler...do they work and worth doing? i have seen a number of claims saying that the temp falls by x degrees but seems a simple mod that i would have thought subaru would have done if it was that easy.
Old 21 October 2005, 11:02 PM
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AFAIK the bugeye onwards have a greater 'tilt' to the top mount than the classics .. so in a way they have....
Old 21 October 2005, 11:10 PM
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Originally Posted by Scooby-kid
hmm, i didnt think of that.

Anyone know if you could put the WRC type ic in a raod car, as in a WRC i know the engine is very low in the engine bay...
... would it fir in a standard engine bay?!


Scotty.
I have often wondered that as well, im looking forward to this being answered.

Cookie (with an irrelevant post)
Old 22 October 2005, 12:45 PM
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No reason you couldn't put the WRC set-up in your other than cost.
Parts needed,

New Inlet manifold with front facing TB
New Radiator
New IC
New fan set-up probably
Associated pipework

Off the shelf FMIC's are available for a lot less cost than the above would set you back. On the other hand you could uprate the TMIC by changing over to one which has bigger overall dimensions e.g. depth etc but then again you must be sure it has decent flowing properties as this will defeat itself by adding lag to the system.

John.
Old 22 October 2005, 12:47 PM
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Originally Posted by davedipster
Also isnt the heat of the inlet air detected by a sensor @ the MAF, not after the turbo.
So a std or ppp'd car will still ramp back even with that new tsl chargecooler, cos the sensor is before that thing. So on a hot day the ecu will still ramp back.
Or does it only do that when things are REALLY HOT.

Waiting to be proved wrong by someone who knows something

dipster
Not 100% sure but think it may have more to do with the EGT sensor than the MAF.

John.
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