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Model specific boards => Golf mk4 => Topic started by: dstv on 14 October 2012, 21:20

Title: FMIC benifits
Post by: dstv on 14 October 2012, 21:20
Hi guys

could someone tell me what benefits a fmic would give the car in performance.?
Im currently running AGU remapped and ko3s turbo. and soon will have the option of either buying a fmic or the 3" exhaust that some people on here have bought already. So basically which one first?
But some input will be great.

Thanks
Eugene
Title: Re: FMIC benifits
Post by: scarr89 on 14 October 2012, 21:33
Cooler and denser air to then shove into your engine which makes it go bang bang better.

A larger IC gives the air a better opportunity to cool down before it goes into your engine which has a positive affect on combustion.

Or something like that  :grin:

But a large IC will increase turbo lag...
Title: Re: FMIC benifits
Post by: littco on 14 October 2012, 21:50
Nearly.

Lower IATs from the larger intercooler allows for more timing before knock is encountered. More timing = more power/torque. Can also help as will be more free flowing, bigger pipe work etc thus more air flow = more power/bhp.

On a freezing cold day it's not that much benefit but comes into its own on hot days or after cars been running a while and engine/pipe work /air is warmer. Will Definately make a difference with a remap as higher psi boost = more compression in the air which means warm charge air.

Considering prices of an fmic its a win win, providing you don't make it stick out and look Chavy!
Title: Re: FMIC benifits
Post by: scarr89 on 14 October 2012, 22:01
Nearly.

Lower IATs from the larger intercooler allows for more timing before knock is encountered. More timing = more power/torque. Can also help as will be more free flowing, bigger pipe work etc thus more air flow = more power/bhp.

On a freezing cold day it's not that much benefit but comes into its own on hot days or after cars been running a while and engine/pipe work /air is warmer. Will Definately make a difference with a remap as higher psi boost = more compression in the air which means warm charge air.

Considering prices of an fmic its a win win, providing you don't make it stick out and look Chavy!

Jesus Littco, I could have gone into that much detail if I wanted...I was just being simple  :whistle:

 :grin:
Title: Re: FMIC benifits
Post by: Chris. on 15 October 2012, 00:00
Current spec would help.

Personally id be tempted by the downpipe first at that makes the turbo 'breathe' a lot better.
Title: Re: FMIC benifits
Post by: paultownsend on 15 October 2012, 10:39
im still running the OE SMIC

i have done the inner arch liner mod, taken off the under bonnet fabric and also made a similar size hole in the grille/slam panel like the passenger side. (that the airbox/intake uses).  This flows cold air directly on to the TB/intake manifold.

In traffic the intercooler and intake manifold do get hot. But a quick blast up the road soon makes then cool again.

When my car was getting mapped i was very concerned about heat. Every run was giving less power.
On the Dyno there is inevitable heat soak. But, a HUGE fan just can not replicate a 1.3 tonne lump of metal and plastic moving through the air at 50mph. When you get going it all cools down again.

These are free little mods which have made a small difference.

As soon as i see a mk4 using a normal bumper and a 'wellycooler' behind it il be straight on ebay. I just cant stand seeing the I/C pipes



Title: Re: FMIC benifits
Post by: Wazzzer on 15 October 2012, 12:27
FMIC would be the last thing I'd fit before mapping
Title: Re: FMIC benifits
Post by: shaft69 on 15 October 2012, 12:58
personally if get top quality smic be fine with ko3s, if start running big turbo then yes fmic. As said many times before my smic was spot on even on hot day on rollers for 2hrs after about 12 runs. newsouth intake gaskets are big help too. I got mine from my nephew had with APR stage3+ gt2871r turbo he's in Florida he said no heat soak on roasting hot day on rollers. went gt35 and then fmic was fitted, each to there own tho.