EVO8LTW

iTrader: (41)

What sort of AITs are you all seeing relative to ambient and with what FMIC? I have had the super heavy Buschur “Race FMIC” with the 3.8” Garrett core on my car for a long time, but have been thinking of downsizing to save weight since I’m running only 21-23 psi boost on a BBK Full turbo. On the street, datalogged AITs are generally within a few degrees of ambient in single gear pulls. But, this past weekend I datalogged AITs for the first time on track at Summit Point Main and saw AITs reaching 20-30 degrees above ambient in 90 degree weather. This struck me as a greater AIT rise than I was expecting, especially since my intake puts the filter down low and away from engine bay heat. So, now I’m thinking of keeping the big FMIC, at least as long as I’m not on E85. Thoughts?

kikiturbo

my personal opinion, based on some experience, is that bar and plate cores have no place on track cars (track being something longer than 1/4 mile and with corners)...

EVO8LTW

iTrader: (41)

Can you elaborate? Do they keep AITs lower?

211Ratsbud

iTrader: (1)

Bar and plate have high thermal capacity than tube and fin but also are slower typically to dissipate. Some original Japanese made intercoolers were tube and fin.

EVO8LTW

iTrader: (41)

The AITs dropped quick for me after long WOT blasts based on my datalogs. My main concern is whether a tube/fin would have a greater AIT rise.

Has anyone else datalogged AIT on track?

If I had E85, I wouldn’t care, but I’m still running E10.

Ayoustin

iTrader: (2)

Bar and plate will cool better but is also more prone to heat soak. Garrett cores are well made so I'd just stick with what you've got unless you're trying to lose weight.

FWIW 20F over ambient is not bad at all especially on a hot and humid day. I used to have street cars that wouldn't get that close to ambient.

yip

iTrader: (1)

My builder decided on his own that he was going to take out my bar & plate intercooler and is building a new intercooler using a tube & fin core. He claims that tube & fin is better for road racing due to it's ability to dissipate heat faster and the weight savings when comparing similar size cores. He said on a dyno that my bar & plate would produce higher #'s but on a road course with constant high speed flow the tube & fins would reduce IAT's by at least a small amount.

I'm willing to be that I don't notice any difference but if he wants to do it so be it :P

Balrok

iTrader: (15)

The two go-to's are the Blitz and the Plamaman?

EVO8LTW

iTrader: (41)

I used to have a PWR, which was tube and fin. Maybe I should have kept it.

kaj

iTrader: (60)

I have a Blitz. Everyone warned me against it because it was "too small" and "it's tube and fin". My car has maxed out a Walbro fuel pump without a single issue while daily driving, autox, and road courses, all in the heat. The thing also weighs next to nothing. It's a work of art. Before that, I had an AMS FMIC that I had a feeling was overkill. Looks like I guessed right.

RazorLab

iTrader: (8)

See this post of mine comparing my Greddy tube and fin FMIC vs my AGP bar and plate FMIC on track.

The Greddy weighs a good amount less and I am super happy with the performance of it.

https://www.evolutionm.net/forums/pr...l#post11818999

kaj

iTrader: (60)

That's a nice looking FMIC. here's mine. I almost hated to put it on. Wanted to hang it up

LetsGetThisDone

iTrader: (1)

Are you measuring IAT's or just assuming?

kaj

iTrader: (60)

Assuming which part? That I maxed out the wally? The AMS was overkill?. No knock or power dips = good enough to me. No IAT measured.

RazorLab

iTrader: (8)

Real science right der... derp