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View Full Version : Greddy FMIC pipe sizes



Enclave
12-21-2005, 09:16 PM
Anyone know the size of the charge piping for a Greddy FMIC?

Thanks.

OutkastSL
12-21-2005, 11:35 PM
2.25 in on both sides. it's kinda small but does the trick for a k03/k04 and maybe a t28.

nizmosx
12-22-2005, 11:47 AM
it does plenty for a t28 and can go bigger. =)

A4N
12-22-2005, 11:51 AM
I put 2.5 on mine.

bitterchild
12-22-2005, 12:11 PM
don't size IC piping like exhaust piping. 2.5" is BIG

nizmosx
12-22-2005, 12:53 PM
Originally posted by bitterchild
don't size IC piping like exhaust piping. 2.5" is BIG

exactly... the greddy is plenty for the t-28. the greddy can easily handle a bigger turbine than the t-28. once i go that route i will pull logs. Need to get my cable back from dvs now that i have a laptop

bitterchild
12-22-2005, 02:00 PM
the piping can, not so sure about the core though.

nizmosx
12-22-2005, 06:16 PM
bitter are you stating this because its not a bar and plate core...


because im stating that it can handle more than a t-28 because of austins car. His care is putting down some nice numbers and to be honest its higher than any other pes kit i have seen, and the greddy has been perfect so far. I would imagine that the unit should not have any problems with a disco potato but thats all speculation. I think if i ever choose to go bt its going to the be rs(not the elim.) so i guess we will all find out sooner or later.

bitterchild
12-22-2005, 09:03 PM
yup, the core is taller but the tube extrusion is limited by design. I'd like to see where the real cliff is cfm/efficiency wise. No doubt just swapping a core would see gains :p course you could always argue that t/f is lighter. right? real racers go light [;)]

nizmosx
12-23-2005, 01:00 PM
hehe ya, id sell my soul if it was heavy. jk

JeffM1587
12-23-2005, 01:23 PM
i have a greddy and im running a t3t4

nizmosx
12-23-2005, 01:25 PM
and its holding up great right jeff. or u noticing a loss in performace due to the core

JeffM1587
12-23-2005, 01:27 PM
not noticing any loss in performace in fact its make lots of hp no problem

bitterchild
12-23-2005, 04:57 PM
just curious, how can you notice a loss in performance when you haven't run a different core [;)]

intercoolers don't make power

Devious27t
12-23-2005, 05:19 PM
Originally posted by bitterchild
just curious, how can you notice a loss in performance when you haven't run a different core [;)]

intercoolers don't make power

your right they help you keep the power that you have.

As for the core being an inferior design, like anything that is subject to your own opinion. Having done personal research on the core itself with shit loads of logging, I can say with certain confidence that a B/P core will not get any better in the IAT department. As for pressure drop there is a marginal difference between actual and requested boost and the duty cycle (even with the C valve) was quite low (meaning it wasnt pushing the turbo harder to make the boost)... Like i said before this is my opinion from the data I have collected. FWIW the DUH is a B/P with the same relative size and I havent seen any better data from anyone running one of those.

BranCKY3
12-23-2005, 05:32 PM
Originally posted by bitterchild
don't size IC piping like exhaust piping. 2.5" is BIG

So I take it the bigger the pipe, the more pressure drop? Some kit on ebay had 2.75" pipes, which is huge. Someone made a thread on it last week.

Devious27t
12-23-2005, 05:38 PM
Originally posted by BranCKY3
So I take it the bigger the pipe, the more pressure drop? Some kit on ebay had 2.75" pipes, which is huge. Someone made a thread on it last week.

for reference my buddies turbo supra that made 535whp with a single T66 turbo (stock fueling) had an APEXi bar and plate skyline core that was just fucking HUUUUGE. He had 2.5" piping.

bitterchild
12-23-2005, 05:42 PM
there is a difference between tube extrusion designs as well. I've seen some really crappy ones that looked like they were designed for cooling oil with no allowances for fluid velocity