Cold air feed

[JmRS4]

Just been looking at MRC tunings website, I'm look at removing the drivers side rad and installing the cold air feed mod. Do I need a remap afterwards? Thanks

[The_Coat]

No map needed.

[MikeFish]

If you remap at the same time you can remove the secondary air injection too.

[Covkiller]

I had a Terraclean and MRC full carbon clean and porting and got 447PS after a Doug special remap, which took him most of the day.
The car was left as standard, i.e. no cold air feed and the inlet flaps left in place.

[marc1]

^ Another pic showing Mugello IS the best colour.

[Baz4]

Awesome figures, what was the torque? Also what's your setup regarding your other mods ie cats and exhaust size. I've had all the mods done apart from going fully catless and made 440 ps and 480nm. I know some engines are stronger than others but I'm starting to think some mods like de-flapping and larger exhaust sizes are near enough pointless power wise.

[MikeFish]

I had a Terraclean and MRC full carbon clean and porting and got 447PS after a Doug special remap, which took him most of the day.
The car was left as standard, i.e. no cold air feed and the inlet flaps left in place.

IMG_1117.JPG

I have a Revolution carbon filter so more susceptible to heat soak. But since increasing the CAF pipe size from 89mm to 102mm and fitting an inlet trumpet my car is definitely holding power for longer now (i.e. whilst the temps rise).
I haven't done any prolonged testing but on the short runs I've been doing this week compared to when I last did the tests several months ago when it was colder, my inlet temperature is now 2-5 degress above ambient whilst doing around 50-60mph. Without the trumpet and smaller hose, the inlet temp was 5-10degrees above ambient (and the ambient temperature was lower to start with).
Whilst I didn't think an inlet temperature that low (15 to 30 degress ish) would have any affect on performance, I definately get that cold damp morning type pulling more often and even get it during high ambient temperature drives when it would typically feel a bit sluggish.

[Covkiller]

Baz4, have a look at my signature it's all there

[Rw@@dy]

What length of pipe do you need for this?

[MikeFish]

I bought 2m and was way too long. 1m is more than enough for my open air filter. I'd imagine it is enough for the standard airbox too.

[Rw@@dy]

Thanks