Did I sale you an Intake?

Sorry for the bad memory. I am glad its holding up well! I am thinking of switching over to the Perrin one myself.

And no beef, just giving my personal preference.

 

is a four inch overkill with fp red +meth or fp red+e85?

 

4" isn't overkill for the stock turbo and definately isn't overkill for the FP Red.

 

It's not overkill for a Red at all. I run 30 psi on pump with my Red. If I didn't have a BR Race core I am sure my intake temps would be higher resulting in less power.

 

Are you measuring IT´s? If so, how high do they get with the Red and the BR Race FMIC at 30#?

 

You´ve made an interesting point, jouniu. The frontal area of the FMIC core isn´t being taken into consideration in this discussion. Given two FMIC cores with equal internal capacity, which would do a better job of cooling the intake charge, a thicker core with a smaller frontal area or a thinner core that is both taller and wider than the first? Or, would there be no measurable difference in cooling capability between the two configurations?

 

I didn't tune the car, David did. He does log the AITs.

Answer me this... What produces a hotter charge (pre intercooler):

A. a stock frame turbo pushing 30 psi
or
B. a GT35R pushing 30 psi

 

A stock frame turbo pushing 30 psi.

A stock frame turbo that isn't a red is far past its real efficiency, if you are using a stokc turbo at 30PSI you should have a bigger turbo.

A Green blowing 30 PSI probably produces twice the IAT's a 40R would at 20 psi.

However there is a difference between a what requirements a green and a 40R has due to the amount of air they will flow, with a smaller turbo you don't want to be filling such a huge volume for lots of reasons not related to cooling, but related to engine response characteristics.

Scorke

 

That is not the point. With stock you could produce hotter air but with bigger turbo there is much more air to cool down. If your stock put 38lbs air flow and 35R 60lbs, it is very easy to guess which one have more heat. It is not difficult to calculate heat energy in those two cases.

 

I asked because people question whether or not you need the best most efficient intercooler if you are "just running a red".

My point is this:

If you do not plan on running higher boost DO NOT BUY A RED. A stock 9 turbo will perform just as well as a Red with better spool up at low boost. The Red shines at high boost. So now we have established if you have a Red, you are running higher boost. Now we know that the Red at higher boost creates more heat than a larger (35r variant) turbo at the same level. Higher temps induce detonation requiring a drop in timing and lowering of power. So not only is it "okay" to run the better intercooler on a Red, it is probably even more so required to keep the AIT temps lower.

As much as I don't see eye to eye with you and believe that you will still argue the fact, I still believe that you are intelligent enough to know that is true.

 

Your numbers are calculated based upon the output of a stock turbo at full boost, am I correct? If so, your numbers don't take into account the time for the turbo to actually reach that boost... which would relate back to the intercooler volume. It seems to me that the math would have to be derivative in nature. Maybe you already did that, but it's a question worth asking.

 

yes

 

i switched from a 3" to a 3.5" and noticed no difference in spool.

 

As curious as I am on finding actual data on the subject, I think you and the general concensus is right.