MstgKillr

iTrader: (4)

Does anyone have any direct comparisons between these intercoolers?

I always hear how much better a FMIC is compaired to the ATI 4.5" twin intercoolers but how much better?

What about the ATI Race FMIC vs the CXRacing 31"x12"x4" FMIC... I have read they produce the same performance but are there any numbers to support this? It looks like the ATI is larger and a higher quality intercooler that should be superior to the CXRacing intercooler. Does anyone know the dimensions of the ATI?

I see that CXRacing has an even larger 36"x12"x4" FMIC, has anyone used it yet?

PewterZCar

iTrader: (2)

How much power are you wanting to make? Unless you're talking 900-1000+ any of those intercoolers will be fine. If you're wanting more than that think A2W.

The Alchemist

iTrader: (19)

I would definitely got to a FMIC vs dual intercoolers simply because of the simplicity of it and it's more efficient when you're not splitting the boost to two different intercoolers, only to merge back together again before the throttle body.

Now which FMIC intercooler is better, I don't know. I do know that I was running about 15psi max boost and my IAT's stayed with 10-15 degrees above ambient from a second gear roll to mid way through 4th gear, and I only have a 3" wide intercooler.

I8UR4RD

iTrader: (16)

I mean the smart way to go is the cx or whatever fmic...but I did happen to get the ATI piece since it was only 200 extra from Bob vs the twin 4.5's......and i do not like the idea of a "plenum" or "merge" at the top vs a clean looking single pipe going into the TB. But I am almost willing to bet the ATI piece is nicer. It is also pretty heavy, and bigger than youd expect. Just my $0.02. youd be nuts to by it by itself.

allout06

iTrader: (11)

if your making less than 1000rwhp. buy the $255 CXracing kit. i did. its easy to install and its actually a high quality piece. anything over that you'd want A2W as previously mentioned.

MstgKillr

iTrader: (4)

I would tend to agree but is there any proof that a FMIC is more efficient? If so, what kind of increased performance are we talking about in terms of power? I read people talking about lower IATs and I understand that lower a IAT will make more power but how much more?

MstgKillr

iTrader: (4)

I already have the ATI 4.5" Twin Intercoolers and plan on using an Alky Control Meth Kit but within the next 6-12 months I plan on building the motor and maxing out a D-1SC or a F-1A. I am not sure how much these head units are making now but I would assume anywhere from 700 to 1000 rwhp.

The Alchemist

iTrader: (19)

Airflow into the motor is no different than out of the motor in terms of what helps and what hurts. The less bends and the less severe they are the better. Everytime airflow has to change directions, you lose efficiency. I remember reading on here that guys were seeing more psi by simply changing from the dual intercoolers to a single FMIC which shows that there was less restriction in the charge pipe setup.

Bob@BruteSpeed

iTrader: (16)

When you start pushing past 14 psi with the twin intercoolers, they'll get so hot you don't want to leave your hand on them.

The CX Racing 31 x 12 x 4 intercooler is generally a very good intercooler, it's what we used with our EPP front mounts that we sold back at the old shop that I managed. The quality control on the CX Racing intercoolers is suspect though, as I recently had a customer that I have sold a lot of ProCharger parts to, install the CX Racing intercooler 31 x 12 x 4 on his GTO, and the intercooled ended up having a major restriction inside it. He didn't know exactly where or what the problem was in it, but I sold him the ProCharger GTO Race intercooler and his boost went up dramatically. He had tried everything trying to find where the restriction was with the CX Racing intercooler prior to swapping it out. We had a similar situation back at the old shop and I ended up sending out another CX Racing intercooler out to the customer which ended his low boost problem. Bob

allout06

iTrader: (11)

i bought my kit used and it came with the twins. i sold them here on the classifieds for $750. then got the CXRacing kit. the D1 is good for about 800-850rwhp. depending on your supporting mod. anything past that your really hurting yourself because the incoming air will b extremely hot as bob mentioned. the F1A is a much more efficient blower, you dont have to spin it as hard to make the same amount of boost as you would with a D1.

I wonder if that was just a rare occasion Bob? there's a lot of guys running lots of boost through CXracing IC's on here. id like to test mine just to be sure...hmmm...Im makin 5.5-6psi with my setup with a 4.38" pulley.

MstgKillr

iTrader: (4)

CXRacing has an even larger 36"x12"x4" FMIC, has anyone used it yet?

allout06

iTrader: (11)

yes i have it. heresy the exact kit i bought

http://item.mobileweb.ebay.com/viewi...id=84076180122

MstgKillr

iTrader: (4)

That link listed the 31"x12"x4" intercooler and not the larger 36"x12"x4" intercooler. Which one do you have?

allout06

iTrader: (11)

o i just paid attention to the core thickness. i have the 31".

Bob@BruteSpeed

iTrader: (16)

I'd have to say it is rare, but it lends me to believe they have poor quality control. Bob