[kzlflash]

So I've been wondering and searching, we all know the stock UICP expands during increased boost levels, but how much will it make a difference for daily drivers that don't mess around with the boost level of the car? It seems that most people on this forum speak in terms of a heavy modding mind set. I know the more boost you run, the more the squishy pipe is going to expand. But what if you're not messing with the boost levels (with a boost controller)? Will the drop in throttle response be that much?

How much difference is it going to make for a conservatively tuned car with just a panel filter, cat back, fmic, and hi flow cat?

 

[yacoub]

Subscribed. Interested to know this too. Has anyone actually tested this? Seems like many do a UICP as one of their first mods so they wouldn't know.

 

[DarkRider]

Since your talkig about eliminating added expenses for modding, the fmic for our Evo doesn't need to be upgraded unless your pushing a larger turbo, so I've been told. The uicp replacement is common because a hard pipe not only eliminates expansion and also allows for smooth air flow.

Uicp can be bought new/used from $65-$300+. It adds a little flash under the hood as well. If your planning to go incognito to keep a warranty good luck, the exhaust alone should void you at 99% of the dealerships.

For more specific answers, try pm'ing some of the forum tuners (clipse, golden, tephra, ect.).

 

[trick3d]

yeah i've heard the same about the intercooler, not needed at that level.

 

[Exyia]

even the stock X intercooler gets heatsoaked (look at baseline pulls in sig). it's just up to the owner to decide if they care enough to upgrade it

as for UICP, you'll be fine and it makes a decent difference. especially if you're not tuned, it helps the lackluster stock throttle response

 

[JRally]

I replied to your thread on evom as well, but I added a hard pipe to replace the upper rubber section. I used Depo Racing's $100 kit.

Boost spikes less and holds through more of the rpm before bleeding off. Id recommend it.

 

[DocBoz]

I replied to your thread on evom as well, but I added a hard pipe to replace the upper rubber section. I used Depo Racing's $100 kit.

Boost spikes less and holds through more of the rpm before bleeding off. Id recommend it.

do you have a before and after graph of these claims, or just something you noted?

 

[JRally]

Claims...interesting.

I posted a dyno 3 days ago.

 

[disturbedfan121]

I made the same HP with my depo turbo inlet, depo UICP, and AFE drop in, as i did with my depo UICP and akuma 3" intake so his parts are pretty good...I have my depo turbo inlet and afe filter with 20(yes 20) miles on them if you wanna buy em PM me lol

 

[Evo_Mike]

even the stock X intercooler gets heatsoaked (look at baseline pulls in sig). it's just up to the owner to decide if they care enough to upgrade it

as for UICP, you'll be fine and it makes a decent difference. especially if you're not tuned, it helps the lackluster stock throttle response

how exactly is throttle response improved? faster spool?

 

[geezespeed]

Great read.

What do you all think about the Intake Elbow Pipe (throttle-body). Should that be replaced as well?

 

[geezespeed]

^ Who makes one ?

 

[Frankiago]

^What the heck are you referring to? Many companies make lower intercooler pipe kits that do away with the long hose that connects throttle body to LICP...

 

[kzlflash]

Great read.

What do you all think about the Intake Elbow Pipe (throttle-body). Should that be replaced as well?

Do you mean the turbo inlet pipe that Cobb makes?

 

[ZLAYER]

I know that it has been accepted within the community that the stock uicp expands. But I wonder if that's just hearsay that's been passed down without question. I know the pipe will collapse when squeezed inward, but there is a material wrapped around the rubber pipe that, for lack of a better example, is sort of like seatbelt fabric. So unless someone has actual evidence, I believe there is no way that the fiberous material will allow the pipe to expand outward. I think aftermarket UICPs are just engine compartment bling. I will have no problem retracting my previous statement if someone can provide proof that expansion occurs.

 

[cbr1000]

I know that it has been accepted within the community that the stock uicp expands. But I wonder if that's just hearsay that's been passed down without question. I know the pipe will collapse when squeezed inward, but there is a material wrapped around the rubber pipe that, for lack of a better example, is sort of like seatbelt fabric. So unless someone has actual evidence, I believe there is no way that the fiberous material will allow the pipe to expand outward. I think aftermarket UICPs are just engine compartment bling. I will have no problem retracting my previous statement if someone can provide proof that expansion occurs.

I've read that you can pop the hood, rev the engine, and see it expand. Test it out, let me know lol

 

[Get Rad]

I know that it has been accepted within the community that the stock uicp expands. But I wonder if that's just hearsay that's been passed down without question. I know the pipe will collapse when squeezed inward, but there is a material wrapped around the rubber pipe that, for lack of a better example, is sort of like seatbelt fabric. So unless someone has actual evidence, I believe there is no way that the fiberous material will allow the pipe to expand outward. I think aftermarket UICPs are just engine compartment bling. I will have no problem retracting my previous statement if someone can provide proof that expansion occurs.

Think of it like this, you stretch a rubber band from post to post. Now you try running through that rubber band with all your power. As you run towards it that rubber band pushes back on you which slows you and and makes you work harder. This is what is happening with the stock IC piping. The clothe and rubber pipe around them has a much lower tensile strength compared to that of a metal pipe. We can also talk about the expansion of the pipe which creates a larger cross sectional area and we all know that as area increase pressure decreases. Pressure=Force/Area based on the science of that alone it is quite obvious. So in today's lesson we have learned that the hard pipe is better and not just for bling. I don't need data to prove this cause it can be proved theoretically using good old fashion math and having an understanding of material and fluid properties.

This is coming from a mechanical engineer.

 

[Exyia]

and it's a cheap mod with easy DIY install. no real reason to keep the OEM UICP. it's as if Mitsu knew any money spent there would be wasted for aftermarket anyway

 

[Frankiago]

Think of it like this, you stretch a rubber band from post to post. Now you try running through that rubber band with all your power. As you run towards it that rubber band pushes back on you which slows you and and makes you work harder. This is what is happening with the stock IC piping. The clothe and rubber pipe around them has a much lower tensile strength compared to that of a metal pipe. We can also talk about the expansion of the pipe which creates a larger cross sectional area and we all know that as area increase pressure decreases. Pressure=Force/Area based on the science of that alone it is quite obvious. So in today's lesson we have learned that the hard pipe is better and not just for bling. I don't need data to prove this cause it can be proved theoretically using good old fashion math and having an understanding of material and fluid properties.

This is coming from a mechanical engineer.

Doesn't take a mechanical engineer to understand what's going on here. This is coming from a nuclear engineer

What he's asking has nothing to do with the theory behind why it would mean less power, what he's asking is "people claim it expands, but does it really?"

I don't want to put my stock UICP back on otherwise I'd take a video of the rubber section to see if it really does expand.

 

[Get Rad]

Doesn't take a mechanical engineer to understand what's going on here. This is coming from a nuclear engineer

What he's asking has nothing to do with the theory behind why it would mean less power, what he's asking is "people claim it expands, but does it really?"

I don't want to put my stock UICP back on otherwise I'd take a video of the rubber section to see if it really does expand.

It has to expand its rubber and mesh clothe. You would have to disregard all material properties of the pipe. Just reading that made me want to face palm through my skull. Not to mention the affect of heat from the motor on the piping which would allow for the material to expand easier than when its cold.

I completely understand that you don't need to be an engineer to understand this which is why my mind if blown lol