[DYOOS]

Originally Posted by mike@x-ph.com

Wagner is higher density so it will provide better cooling

What about VRSF 5"?

[mike@x-ph.com]

Originally Posted by DYOOS

What about VRSF 5"?

Wagner cores are higher density that standard VRSF cores
HD VRSF cores are the highest density cores on the market

[Tiago@VRSF]

The Wagner core is actually the same density as the VRSF standard core after our latest core revision (April 2018). The VRSF street core is in line with ER and Wagner in terms of internal and external density.

[07tundra]

LOGS DON'T LIE

https://datazap.me/u/07tundra/log-1530522196…

https://datazap.me/u/07tundra/log-15...og=0&data=3-22

Had to edit my post since it was confusing some folks

Here are two logs with the VRSF race FMIC if you look at the AIT's they almost completely flatline. The first link is a log done at night ambient was high 70s and the 2nd log during the day ambient was 97-99 degrees out. Under these same conditions, my old FMIC would climb an easy 30-40 degrees and here's the link for that and mind you this log was also at night ambient high 80s

https://datazap.me/u/07tundra/log-1526570292…

[07tundra]

Originally Posted by DYOOS

Silly question, but what is the best performing FMIC that won't require cutting to make fit? Any in the $300-$600 range.

I believe the VRSF Race fmic is in that price range

[Tiago@VRSF]

Originally Posted by 07tundra

LOGS DON'T LIE

https://datazap.me/u/07tundra/log-1530522196…

https://datazap.me/u/07tundra/log-15...og=0&data=3-22

Had to edit my post since it was confusing some folks

Here are two logs with the VRSF Race FMIC if you look at the IAT's they almost completely flatline. The first link is a log done at night ambient was high 70s and the 2nd log during the day ambient was 97-99 degrees out. Under these same conditions, my old FMIC would climb an easy 30-40 degrees and here's the link for that and mind you this log was also at night ambient high 80s

https://datazap.me/u/07tundra/log-1526570292…

Thanks for posting your experience with the VRSF Race Intercooler. Looks like a 2 degree rise in 3rd gear vs the 42 degree temperature rise with the old FMIC in the same gear @ the same boost. We stress the importance of a well engineered fin pack both internally and externally and this independent test is a perfect example of that effort!

http://www.vr-speed.com/vrsf-7-5-ste...2-e90-e92.html

Here's an image of the comparison.

[conrad325i]

I'd like to throw some $0.02...

Optimally, in a perfect environment, an intercooler with a higher fin density will transfer heat better than one with wider spaced fins TO AN EXTENT. HOWEVER, the tighter the fin density the more easily clogged the intercooler will become. (note pics above with folded over fins, etc) without airflow thru the exchanger, you will not get any cooling aside from a heat sink effect until the intercooler is heat soaked. SO for daily driven applications, a wider spaced, larger intercooler might be the best longer term solution for a daily driven, non-racecar.

[Jeff@TopGearSolutions]

Originally Posted by conrad325i

I'd like to throw some $0.02...

Optimally, in a perfect environment, an intercooler with a higher fin density will transfer heat better than one with wider spaced fins TO AN EXTENT. HOWEVER, the tighter the fin density the more easily clogged the intercooler will become. (note pics above with folded over fins, etc) without airflow thru the exchanger, you will not get any cooling aside from a heat sink effect until the intercooler is heat soaked. SO for daily driven applications, a wider spaced, larger intercooler might be the best longer term solution for a daily driven, non-racecar.

Why are fins getting clogged and folded over? Have you any data to compare or is this just speculation?

[9krpmrx8]

"similarly sized competing intercooler". Why not just say which one it was? What were the ambient temp differences between the two logs? Oh and I thought Tundra was not comparing? .

[Tiago@VRSF]

Originally Posted by conrad325i

I'd like to throw some $0.02...

Optimally, in a perfect environment, an intercooler with a higher fin density will transfer heat better than one with wider spaced fins TO AN EXTENT. HOWEVER, the tighter the fin density the more easily clogged the intercooler will become. (note pics above with folded over fins, etc) without airflow thru the exchanger, you will not get any cooling aside from a heat sink effect until the intercooler is heat soaked. SO for daily driven applications, a wider spaced, larger intercooler might be the best longer term solution for a daily driven, non-racecar.

I've been in this industry for over 15 years now and I can honestly say I've never seen a "clogged intercooler". Please don't spread this kind of misinformation without doing the proper research.

The higher the fin density, the higher the overall heat absorption internally and heat dispersion externally which produces cold intake temps. Spacing out the external fin pack will do a great job of keeping the bottom of your fan shroud cool but not so much your intake temps

From an engineering standpoint, "spaced out fins" isn't something you want in a heat exchanger in any application.

[Cchristianh20]

Im a little late but I have a stock bmw 335i e93. ill be going with MHD I already have a CAI and ill be buying a catless DP. what are some FMIC recommendations

[mike@x-ph.com]

Originally Posted by Cchristianh20

Im a little late but I have a stock bmw 335i e93. ill be going with MHD I already have a CAI and ill be buying a catless DP. what are some FMIC recommendations

My top two picks are Wagner EVO II or VRSF 7" HD

[Cchristianh20]

Originally Posted by mike@x-ph.com

My top two picks are Wagner EVO II or VRSF 7" HD

I found the evo but its a little expensive what is the difference in performance between the two does any one know

[Tiago@VRSF]

Originally Posted by Cchristianh20

I found the evo but its a little expensive what is the difference in performance between the two does any one know

The Wagner Evo II is a great intercooler but it's smaller in terms of core volume and it has a less dense fin pack which puts it at a disadvantage when compared to the VRSF 7" HD.

From our personal testing our 7" HD will outperform the Wagner Evo II in terms of managing intake temps. The VRSF 7" HD features a larger overall volume as well as a denser internal and external fin pack which not only increases heat absorption internally but also increases heat dissipation externally. The larger the surface area, the better the results

[Cchristianh20]

are their any deals for the 7"HD FMIC right now

[Tiago@VRSF]

Not currently!

[Cchristianh20]

Originally Posted by Tiago@VRSF

Not currently!

What about the vrsf DP will they throw a code

[mike@x-ph.com]

Originally Posted by Cchristianh20

What about the vrsf DP will they throw a code

All downpipes will throw a code unless your car is tuned

[amorello]

Originally Posted by Tiago@VRSF

Not currently!

For a daily driven e90 I've been looking at the VRSF FMIC, wouldn't 7" be overkill for my usage?
What are the pros and cons of 5" vs 7" in short?

[rediahad]

I can speak for the VRSF 5 inch fmic that the aesthetic quality isn't the greatest. End tanks looks very rough and mounting is trash but once you do get it mounted you wont see the end tanks and it works exactly how its supposed to.

[mike@x-ph.com]

Originally Posted by amorello

For a daily driven e90 I've been looking at the VRSF FMIC, wouldn't 7" be overkill for my usage?
What are the pros and cons of 5" vs 7" in short?

If your car is FBO, get the 7"

I would only do 5" if you car has nothing but a stage 1 tune and you really do not want to do any trimming

[9krpmrx8]

Originally Posted by amorello

For a daily driven e90 I've been looking at the VRSF FMIC, wouldn't 7" be overkill for my usage?
What are the pros and cons of 5" vs 7" in short?

I have the 5"stepped (not sure what brand, no markings), I'm FBO, MHD stage 2+ on an N55 seeing 19-22 psi or so and typically had no timing corrections until the weather started hitting 95F+ but my IAT's are still great (never rise to more than 20F from ambient even in this 100F daily weather). I run 93 octane. A few other locals have the ARM and VSRF 7" and thier IAT's pretty much the same as I see, although some have gotten up into the 140's on their N54's, I have never gotten that high, I think I saw 126F once in heavy traffic.