I'm also only interested in the APS setup,but thanks anyway.

 

How would the alternative compare to a normal k&n 57i (thats half the price) which has been secured well to stop the vibration that causes damage to the maf? I'm sure that a box could be made to suround the filter and direct air from the inner wing or a vent in the bonnet.

 

Sorry i was only interested in the APS kit to as i'm getting a remap just after christmas. I'm unlikely to get another just for an induction kit so will have to do without

 

Same here unfortuantly. Was after an aps caf. Sorry.

Doug.

 

Think cyprus has started a new thread for the Rcm kit,as most people where after the Aps caf .

 

I tried all the suppliers of APS kits in the UK: Wallace Performance, WRC Tech, and G-Force. From what I was told is that APS in Australia, are no longer making the kit and that they were just running stocks down. G-Force, the main importer of APS products in the UK, said that they probably wouldn't get any kits in till after Christmas.

I'm getting my car mapped by Andy F. on 16th Dec, so need to get a kit before then.

From what I was told, is that due to the positioning of the APS kit and the restricted size of the cone filter, it is very quiet. Whether the RCM, with the big Cone filter under the bonnet is louder. Depends what you want really.

Just out of interest guys, why do you prefer the APS kit?
Is it really that much better?

The K&N Typhoon kit is exactly the same as the APS kit, but they do not produce it for the Impreza.

If everybodys pulling out, it doesn't look like this Group Buy is going ahead, unless I can get the APS kits.

 

How have you found the K&N to be?

 

Well, the reason i was after an aps kit was on recommendation fron Andy.F when the car was mapped. I would quite happily use a different kit as im not so narrow minded to think that the aps kit is going to be a 1000 times better than others out there. If a quality alternative is suggested, i would be quite happy to take part in a group buy.

Current spec:

ver.6 Sti type r v.ltd.
2.5L bottom end
ver 6 heads + cams
hks headers
hks fmic
hks earth kit
fuel reg.
walbro 255 pump
hks ssqv
apexi power fc + commander
h&s down pipe
Apexi N1 exhaust (to be replaced with nur spec r)
hybrid vf23 (to be replaced with 20g)

So, can anyone make a suggestion what would be suitable?

 

Thats quite a Spec mate.
Yeah it was Andy F, that recommended the APS kit for mine. You will need to get the car re-mapped again if you fit this kit though.
I spoke to Andy yesterday about this, and he said that APS does get more access to cold air alot more freely. The likes of the RCM kits might suffer from some heat soak in very hot weather when stuck in like traffic for a while. Its fine when the cars moving however. This can be compensated by fitting a cold air feeder through the wing sourcing cold air in the same area as the APS kit does. With the RCM / GGR kits, the Induction roar, wastegate chatter & dumpvalve will be alot more audible(like a WRC car), unlike the APS, which will be quite quiet due to its location within the wing.
The APS kit also uses a small K&N cone, whethers the RCM /GGR kits have a massive K&N cone, therefore allowing more air flow.

I think, in my opinion, the RCM with a Cold Air Feeder Kit (which retails for an extra £16 - which I'm sure we could get thrown in with the deal) would be the best compremise, as you get all the Cold Air benefits, that the APS kit gets, by fitting the Cold Air Feeder, plus you get the benefits of the increased air flow with the bigger cone and the Rally car noise that comes with it.
RCM use this kit in the World Record Icelandic Team Scoob and it doesn't seem to suffer from heat soak.

Hope this helps some if you guys that were only considering the APS kit. Like I said, the main supplier, G-Force, told me they they had no gurantee they were getting any more Cold Air kits in for the Classic, as APS are no longer making the kit, and are depleting their stocks.

 

Thats bad news re the APS cold air intake being discontinued, I regularly recommend them.

I think the ice car does suffer from heat soak, otherwise they would not be sitting with the bonnet up and ice packs on it right up until the last seconds before a race

Andy

 

Of course you've raced it Andy!
Thanks for all your advice.
G-Force said they MIGHT get some kits in for the 1999/2000 classic, but couldn't gurantee it. So in the mean time before you re-map my Scoob, I'm looking else where.

Mind you the Ice Team Scooby does get the **** ragged off it and is running silly bhp!

I'm not going to be modding my Type-R and dont drive it hard, so surely I shouldn't have much to worry about.......I hope!

 

I think that heat soak is a much bigger problem for everyday drivers, as unlike rally cars we are generally stuck in traffic where static air under the bonnet hots everything up and its at the point at which the everyday driver uses its cars power pulling away from lights etc that the problem is at its worst,Its not that the rcm kit isnt good because it is, its just better suited on a rally car where there is lots of cold air moving past it.thats just my opinion any way.

 

The way round these heat soak issues, (I think!) is to fit a cold air feeder (£16) into the hole in the wing, where it can source the cold air directly from there, straight to the filter!

 

The cold air feeder helps once you are on the move but when driving slow or stationary in traffic then the easiest route to the filter is for hot air from behind the radiator.
Ideally you need some form of airtight shield between the filter and the engine bay, perhaps rcms can also supply this ?
On the classic cars it is no worse than the std intake which takes its supply from the engine bay but on the new age cars the std induction has a nice cold air duct so I'd be wary of changing before you are sure the std induction is a restriction on your set up. (not an issue at 350bhp)

 

Cheers for that Andy!
I've seen a few cars with these heat shields your talking about. Not sure where to get them though. I'll ask RCM. Failing that, I wouldn't think it would be hard to make one up.
Do you think these set ups, like RCM, are worth it?
Im after a bit of improvement with them and also for the noise.

 

Just make a cold air divider. It mounts on the chasis rail and goes flush up to the bonnet. On the top lip you can even run a length of door seal rubber. I have a template in the garage and cut out the appropriate shape from a sheet of carbon fibre. On the engine side I apply one layer of heat mat.
The air filter sits between the divider and the driver side inner wing. The hole in the inner wing can be opened out if you wish and there are various mods to encourage cold air into the inner wing. eg a brake duct set just down into the air stream in front of the driver's wheel with a length of ducting, open out the orange wedge etc.

E-mail me if you want some photos.

Very effective and still keeps engine heat away from the filter even when stationary.

 

I can vouch for the Harvey system working well with the RCM intake Maybe he will do you a deal on one with a set of ported headers

 

Cyprus Scoob: I have tried to e-mail you a couple of sets of photos but they have been bounced back. I have photos to send when you have an address that will accept them.
Best way to get me is harveysmith1@btopenworld.com

 

Harvey, would you be willing to suply a paper pattern for the heat shield.... i'd be willing to pay for such an item, i can't be ar5ed with all the faffin around to get one right.... my car is a my00with k&n induction fitted.... may well junk the carbon canister to make fitting a little better....

Ron.

 

Ron,
YHM

 

Thanks Dyney.... you're a gent......i owe you a pint mate.....

Harvey, sorry, but consider the request withdrawn......

 

re bold bits below Andy, Confused; on classics ( std ones! ) the airbox is fed from the resonator held in the driver side inner wing, which is fed from near front of the car, so no isues with temperature until you fit a cone filter or similar instead of air box. ??

Anyway, why no 92-96 Impreza APS cold air kits ? Can the later ones be modded to fit ( if found 2nd hand ?? ) And as asked earlier, can they fit with FMIC ??

Cheers

 

What Andy is talking about is the newage cars i.e. bugeye onwards I think, certainly 2003 onwards whereby they have a huge plastic intake at the front of the car which feeds direct to the oem filter and in effect acts as a cold air intake system. Tests with induction kits, from what I have read sees the oem set up being more effective at providing cool air for the filter up to around 350/360bhp.

p.s. The classics did not have the cold feed from the front.

HTH.

 

Yes, thats what I was meaning, on the classic the standard air intake is still from the front of the engine bay. Monitoring the temperature here (OEM probe on the Sti's) shows some horrendous temperatures !

Andy

 

can the larger K&N cone be used on an existing APS kit?

If so, does anybody have a part number? thanks!

 

Because the cone with the APS system is situated in the wing, you are restricted to the size of cone used, therefore the big cone could not be used!

 

gotcha

 

I think John Banks managed to source a longer filter of the same diameter to fit his APS kit but IIRC it didn't make any difference to the power when he was around the 400bhp level.

 

so by that reasoning would the K&N it comes with be good enough for 400+ then?

 

At somewhere around 400 bhp the APS CAK O/E filter becomes restrictive.