What a difference 15 degrees makes

Striker · Jul 17, 2003

I have been 'testing' my new PiperX filter for the past two days now.
I really love the sound of it, but at first I couldn't really say I was impressed with the powergain (or powerloss for that matter). The car felt a lot slower at lower revs. At higher revs (so higher speeds and better cooling) it felt as before.
This morning when I was driving to work it was 17 degrees outside, instead of the 32 degrees of the past two days. The car felt so much faster, it really amazed me.
The difference was really noticable.
I think this clearly shows how important good cooling of a induction kit is. At the moment I have one cold air feed, but it seems that I have to add another one.

mErCuTi0 · Jul 17, 2003

*mods an induction kit to be enclosed in a fridge*

Stu · Jul 17, 2003

Yep, it's amazing how much denser the colder air is.

Goes to show why the turbo boys go for cool chargers.

Planetse · Jul 17, 2003

You need to make a heat shield for your Induction kit, or you will always be pulling in hot air.

It will never give you as much power gain as the standard air box with an after market panel filter.

But id stick with the induction as you can not beat the sound they make, power is not everything. lol
:naughty:

Striker · Jul 17, 2003

Any ideas on how to make a heat shield?
I know you can use the 820 airbox, but I think the filter looks pretty good, so I don't want to put it in a box.

Planetse · Jul 17, 2003

I did one for a RS turbo. Just used a small sheet of 2mm aluminum made it into a semicircle with two flanges on the bottom, then fixed it on about 3” away from the filter on the engine side. With a cold air feed hitting the filter and bouncing back of the shield.

mErCuTi0 · Jul 17, 2003

in normal temperatures.. you have to think of when it's 15c outside and when it's 0 c outside... one's "wrap up warm" weather.. the other is simply "jumper" weather.. so yeah, heh. big gap.

ZS BASHER · Jul 17, 2003

you can buy these from spec-r like the one i bought for my s2 rst but you wil have to modify it as it fits onto the meter head on a rst

snellgrc · Jul 17, 2003

just more thinking out lould

if engine is effecting by the outside temperature - then temperature from engine (asssumed to be constant) isnt making a difference

no matter how many pipes you have going to your air filter

if its 35 degrees outside then the air going to your air filter will be 35 degrees, no matter how fast your going.

also mems might now be adjusting itself to the new filter - giving increased peformance

216turbo · Jul 17, 2003

heres my 220turbo Blitz C1 and cold airbox from Drew @ Roverdose

it definately drops my charge temps by 10 degrees according to my ACT gauge.

But the sound of the filter is the icing on the cake - awesome

Mark

mErCuTi0 · Jul 18, 2003

I'd get that Boa constrictor outta there if I were you. :err:

What a difference 15 degrees makes

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