[PuNiShEr]

I installed my RPI intercooler yesterday. Took only 1hr 1/2 that includes me doing and oil change as well. (Very Easy)
My initial reaction is I have lost a little down low but from 3500rpm on this thing starts to roll after that. Doing a few highway pulls I found is where it really benefits. All in all its perfect addition to my car. One thing of note...I didn't realize how small the stock intercooler is.

Car MODs: AA Cat Back, SSTT, UR/HKS Blow Off Valve, and K&N Drop in filter, and RPI Intercooler.

[5soko]

solid mods, congrats man, get some pics up asap!!!

[De90man]

Originally Posted by PuNiShEr

I installed my RPI intercooler yesterday. Took only 1hr 1/2 that includes me doing and oil change as well. (Very Easy)
My initial reaction is I have lost a little down low but from 3500rpm on this thing starts to roll after that. Doing a few highway pulls I found is where it really benefits. All in all its perfect addition to my car. One thing of note...I didn't realize how small the stock intercooler is.

Car MODs: AA Cat Back, SSTT, UR/HKS Blow Off Valve, and K&N Drop in filter, and RPI Intercooler.

Does a larger intercooler affect down low torque or the sensation there of?

[TonyTone]

hehe

[harrybauls]

Originally Posted by De90man

Does a larger intercooler affect down low torque or the sensation there of?

Increasing the volume of the intake tract (i.e. adding a bigger intercooler) creates a boost lag effect because the turbo has a larger volume to pressurize.

Think of hooking up a short hose to a faucet and quickly turning on the water. How long does it take to for the flow to get to full pressure? Now do the same with a 50 foot hose - it will take longer due to the extra volume of the hose. Same idea.

Its not so much an RPM based issue as it is lag issue.

[orientblue3]

Originally Posted by harrybauls

Increasing the volume of the intake tract (i.e. adding a bigger intercooler) creates a boost lag effect because the turbo has a larger volume to pressurize.

Think of hooking up a short hose to a faucet and quickly turning on the water. How long does it take to for the flow to get to full pressure? Now do the same with a 50 foot hose - it will take longer due to the extra volume of the hose. Same idea.

Its not so much an RPM based issue as it is lag issue.

So installing an aftermarket intercooler with lead to lag?

[harrybauls]

Originally Posted by orientblue3

So installing an aftermarket intercooler with lead to lag?

Minimal. You likely won't really notice it for a reasonably sized IC (i.e. you don't install an IC off a semi truck). Depending on the ambient temperature, the improved IC efficiency, and the ECU's aggressiveness with temperature compensation timing advance, the slower boost response is likely more than offset by the increase in power due to the higher air density (i.e. you can make more power at a lower boost pressure).

[AWD Addict]

Originally Posted by orientblue3

So installing an aftermarket intercooler with lead to lag?

Typically, unless the volume variance is gigantic, not really.

The theory is correct, but IMHO, a X00CFM turbo will fill the relatively tiny increase in volume very quickly. i'd be surprised if full boost is affected by any more than one or two hundred RPMS - which can be eliminated by a very small adjustment in your driving style.

Real lag increases will start coming when much larger bolt on turbo's start hitting the market.

[veightkiller]

+1 for pics!

[335i4u2nv]

Originally Posted by veightkiller

+1 for pics!

x2 plus need more pics of veightkillers sig! nude

[e90AW335i]

Originally Posted by 335i4u2nv

more pics of veightkillers sig! nude

+1,

[jpsimon]

Originally Posted by kyleh4852

+1,

+2

[335i4u2nv]

hahaha what did i start! we want pics

[335i4u2nv]

matter of fact i want a vid so i can hear ur HKS bov as well... if i get a bov tahts what i want the HKS SS

[s2kdagjd]

Originally Posted by 335i4u2nv

matter of fact i want a vid so i can hear ur HKS bov as well... if i get a bov tahts what i want the HKS SS

+1