Theory of intercooler piping
Theory of intercooler piping
Hi guys,
I am thinking about getting an upper intercooler pipe. I am wondering however, if I don't get the supporting lower intercooler piping and supporting upgraded intercooler, is there even a point to get the uicp? So I get some better airflow with the uicp, but it would then just hit the stock restricting licp and stock intercooler. It's like if you don't upgrade all 3, there is no point in upgrading any of them? Is this correct or am I overthinking this? I guess it's the same point with portions of the exhaust as well.


Thanks,
I am thinking about getting an upper intercooler pipe. I am wondering however, if I don't get the supporting lower intercooler piping and supporting upgraded intercooler, is there even a point to get the uicp? So I get some better airflow with the uicp, but it would then just hit the stock restricting licp and stock intercooler. It's like if you don't upgrade all 3, there is no point in upgrading any of them? Is this correct or am I overthinking this? I guess it's the same point with portions of the exhaust as well.



Thanks,
Evolved Member
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I would get the LICP before the UICP. You'll see a noticeable HP increase by just doing the LICP.
I would look at this one in particular:
http://www.extremeturbosystems.com/E...-Pipe-Kit.html
Obviously you will see the biggest gain from the LICP, UICP and intercooler.
I would look at this kit for the biggest gains:
http://www.extremeturbosystems.com/E...ooler-Kit.html
Also, you have to pay to play. Save up and get the LICP, intercooler and UICP
(FWIW, the EVO VIII's and IX's LICP provides a noticeable gain. I'm sure the one for the X does too, I would contact Michael @ ETS and ask these questions). Aaron @ ER (aka JohnBradley) is also another very knowledgeable person, and can answer any questions you have
Or if you don't want to bother them...run it by me too, I've been in the game for a while.
-Bink
I would look at this one in particular:
http://www.extremeturbosystems.com/E...-Pipe-Kit.html
Obviously you will see the biggest gain from the LICP, UICP and intercooler.
I would look at this kit for the biggest gains:
http://www.extremeturbosystems.com/E...ooler-Kit.html
Also, you have to pay to play. Save up and get the LICP, intercooler and UICP

(FWIW, the EVO VIII's and IX's LICP provides a noticeable gain. I'm sure the one for the X does too, I would contact Michael @ ETS and ask these questions). Aaron @ ER (aka JohnBradley) is also another very knowledgeable person, and can answer any questions you have
Or if you don't want to bother them...run it by me too, I've been in the game for a while.-Bink
Last edited by binky; Mar 6, 2013 at 08:52 PM.
The upper intercooler pipe is where the gains are on X's. It was the lower intercooler pipe on 8/9's because the lower pipe was the turbo-intercooler pipe. Due to the rear turbo on X's, the upper pipe is the turbo-intercooler pipe. This pipe matters more because:
A. It necks down to be smaller at the turbo.
B. The air traveling through it is hotter and therefore takes up more volume for a given amount, meaning more flow is required through it to move the same amount of air vs. the intercooler-throttle body pipe.
With that said, if you're on a budget and your choice is an intercooler pipe or a tune, get the tune.
A. It necks down to be smaller at the turbo.
B. The air traveling through it is hotter and therefore takes up more volume for a given amount, meaning more flow is required through it to move the same amount of air vs. the intercooler-throttle body pipe.
With that said, if you're on a budget and your choice is an intercooler pipe or a tune, get the tune.
^^ The UICP also starts off at 1.75" which is a huge restriction for the start of flow. Our Evo X upper starts off at 2.5" and the coupler makes the transition from the turbocharger to the pipe which allows for maximum flow through the 2.5" piping.
Thanks!
Michael
Thanks!
Michael
Agreed...the upper icp is the restriction as it necks down and expands under boost. The lower icp is fine for the factory set up and replacing it provides no gains. If your on a budget build then just replace the uicp....by doing so you provide more efficient airflow and therefor you will spool quicker.
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Like most or all things on the X's, will putting on the UICP with no tune hurt the motor? I don't think it would, just like replacing the radiator hoses and the BOV inlet hose to silicone shouldn't need a tune. I just know how sensitive the computers are in our cars so I figure ask the questions to all you vets before making a fatal mistake!
The upper icp is one of the few mods you can do without a tune...it doesnt affect AFRs or boost tables...it just makes the airflow more efficient and generally helps with spool up. Plus it looks good lol...so throw it on
Evolving Member
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From: 85296, 99519, 96817,98310,07306,10461(HomeSweetHome), & 00739
Curious to know the difference between a one piece UICP and ETS 2 Piece?
^^ nothing.
Edit: Actually let me rephrase. I would say the 2 piece is better. The reason for this is as the motor rocks back and fourth you have a little play and flex between the turbocharger and the intercooler with the coupler. On a solid pipe I would imagine as the motor rocks back and fourth it's going to put a decent amount of strain on something.
Thanks!
Michael
Edit: Actually let me rephrase. I would say the 2 piece is better. The reason for this is as the motor rocks back and fourth you have a little play and flex between the turbocharger and the intercooler with the coupler. On a solid pipe I would imagine as the motor rocks back and fourth it's going to put a decent amount of strain on something.
Thanks!
Michael
Last edited by ETS Michael; Mar 8, 2013 at 08:38 AM.
Evolving Member
iTrader: (2)
Joined: Apr 2003
Posts: 175
Likes: 1
From: 85296, 99519, 96817,98310,07306,10461(HomeSweetHome), & 00739
Thanks! True. Overtime with temperature variances pipes do come undone. Driving an Evo with no boost is he weirdest feeling on the Freeway...
^^ nothing.
Edit: Actually let me rephrase. I would say the 2 piece is better. The reason for this is as the motor rocks back and fourth you have a little play and flex between the turbocharger and the intercooler with the coupler. On a solid pipe I would imagine as the motor rocks back and fourth it's going to put a decent amount of strain on something.
Thanks!
Michael
Edit: Actually let me rephrase. I would say the 2 piece is better. The reason for this is as the motor rocks back and fourth you have a little play and flex between the turbocharger and the intercooler with the coupler. On a solid pipe I would imagine as the motor rocks back and fourth it's going to put a decent amount of strain on something.
Thanks!
Michael
^^ nothing.
Edit: Actually let me rephrase. I would say the 2 piece is better. The reason for this is as the motor rocks back and fourth you have a little play and flex between the turbocharger and the intercooler with the coupler. On a solid pipe I would imagine as the motor rocks back and fourth it's going to put a decent amount of strain on something.
Thanks!
Michael
Edit: Actually let me rephrase. I would say the 2 piece is better. The reason for this is as the motor rocks back and fourth you have a little play and flex between the turbocharger and the intercooler with the coupler. On a solid pipe I would imagine as the motor rocks back and fourth it's going to put a decent amount of strain on something.
Thanks!
Michael
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