STi 450 2.5

Evo · Post by **Evo** » Wed Aug 09, 2006 12:19 pm

Thats the only word I can use to discribe that! 8)

crazy ass · Post by **crazy ass** » Wed Aug 09, 2006 4:39 pm

that is fantastic! i love a phat scoob!!

Post by **Stuart** » Wed Aug 09, 2006 7:20 pm

I've got the hornnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn! :-D Please stop posting pistures of that everywhere Dunk, I cannot afford it, I only have two kidneys.

duncan · Post by **duncan** » Wed Aug 09, 2006 8:47 pm

sorry chap

following todays exploits I may revise the 450 target or the budget

Post by **Ben** » Wed Aug 09, 2006 10:25 pm

Now that is a hardcore nutter machine - j'aime le scooby

duncan · Post by **duncan** » Wed Sep 20, 2006 4:15 pm

Further Mod added:

Joining additional front air duct and pipework to the bottom of the elbow after having sawn the bottom part of the silencer off that unit.

This will bring cool/cold air from the bumper area into the air filter assembly and reduce the charge temp to just above ambient rather than 15C ish above as they are as standard on ther scoob.

Obviously this will help get denser air in there too and should improve performance if mapped to suit.

original unit (upside down)

modified

front install

some small mesh is being sunk into the scoop to deflect small rodents, unguarded children etc

rolty · Post by **rolty** » Wed Sep 20, 2006 4:23 pm

Coooooool - will have a look tonight

Post by **Ben** » Wed Sep 20, 2006 4:40 pm

Very good - but with the small diced rodents - when will you detect that you've caught them - the bbq smell maybe

duncan · Post by **duncan** » Wed Sep 20, 2006 4:49 pm

first impressions upon driving:

sounds
- turbo whine is more noticeable
- dump valve is more noticeable

neither are intrusive

Data logs show that intake temperatures dropped as soon as forward progress was made to ambient or even slightly below if that makes sense.

AFR seems fine but will get it checked by someone that knows what they are looking at before any serious spirited driving is undertaken.

Responsiveness - it may be in my mind but it does feel more willing to pull and therefore seems quicker already.