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Tested my Buschur Race FMIC at Summit Point
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?
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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)...
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Originally Posted by kikiturbo
(Post 11878415)
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)...
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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.
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Originally Posted by 211ratsbud
(Post 11878442)
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.
Has anyone else datalogged AIT on track? If I had E85, I wouldn’t care, but I’m still running E10. |
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. |
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 |
The two go-to's are the Blitz and the Plamaman?
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Originally Posted by Balrok
(Post 11878729)
The two go-to's are the Blitz and the Plamaman?
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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.
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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 |
Originally Posted by razorlab
(Post 11878817)
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 https://cimg8.ibsrv.net/gimg/www.evo...1344367ecf.jpg https://cimg4.ibsrv.net/gimg/www.evo...9332e04019.jpg https://cimg7.ibsrv.net/gimg/www.evo...7334040411.jpg |
Originally Posted by kaj
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.
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Originally Posted by letsgetthisdone
(Post 11878857)
Are you measuring IAT's or just assuming?
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Originally Posted by kaj
(Post 11878867)
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.
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