Toyspeed.org.nz Message Board

by **Luke28** » Mon Apr 23, 2007 9:05 pm

Just wanted to know whether the length of your intake would have any affect on performance??
wud it make any difference having the air filter close to the throttle bodies rather then down near a headlight?? does length matter??? (of the intake that is) :lol:

Cheers - Luke

by **KinLoud** » Mon Apr 23, 2007 9:46 pm

Yes.
Aim to have your throttle body to airfilter distance similar to the factory distance. If it's a bit longer it shouldn't hurt too much.
Make an effort to feed the airfilter cool air.

Ken
Ham
021 408 863

by **Luke28** » Mon Apr 23, 2007 9:53 pm

Ok, thanks for that info Ken.

by **l1ttle_d3vil** » Mon Apr 23, 2007 10:33 pm

KinLoud wrote:Aim to have your throttle body to airfilter distance similar to the factory distance. If it's a bit longer it shouldn't hurt too much.

umm...how does having the air filter closer than factory effect things? good or bad? ...and how close is too close? :lol:

e.g:

by **Ae92typeX** » Mon Apr 23, 2007 11:08 pm

Cant say Ive read much for injected engines on it, but on carbs many wrters - vzard etc- used tuned length intakes. The longer 'generally' assisting the torque curve.

by **ROBODISCO_20v** » Mon Apr 23, 2007 11:12 pm

l1ttle_d3vil wrote:

Thats way too close. You'll loose power/throttle response

by **frost** » Tue Apr 24, 2007 1:26 am

I've seen lots of ae86 drifter cars in japan have that set up (above pic) i even have pics of just a bell mouth in front the butter fly, don't know why the hell they do it but its very popular over there, it must kill low down torque but i guess they don't really need low down when there sitting at red line sideways. if i had a scanner i can post up some pics from my ae86 REV tuning mag.

i really don't see the difference between running that set up and having open quads.

by **l1ttle_d3vil** » Tue Apr 24, 2007 2:29 pm

ROBODISCO_20v wrote:Thats way too close. You'll loose power/throttle response

heh, thats how ive had mine setup for the last 18 months :lol:

anyone know roughly what the standard distance should be from the TB? guess I should look at changing it! :roll:

by **deaf_rattle** » Tue Apr 24, 2007 2:49 pm

i know of a n/a rotary engine that has carbon fibre intake trumpets that change length depending on rpm. pretty awesome work

AW11 Track Toy · by **Caveman** » Tue Apr 24, 2007 2:56 pm

l1ttle_d3vil wrote:
KinLoud wrote:Aim to have your throttle body to airfilter distance similar to the factory distance. If it's a bit longer it shouldn't hurt too much.

umm...how does having the air filter closer than factory effect things? good or bad? ...and how close is too close?

e.g:

Mine runs like that too!

Didnt have the induction pipe so I was like meh, just chuck the filter on :lol:

Is it the same with individual throttles? I always see them with open trumpets

by **bluemaumau** » Tue Apr 24, 2007 2:57 pm

i was under the impression that the length of the filter trumpet only effected cars running ITBs

by **KinLoud** » Tue Apr 24, 2007 3:08 pm

This is an article about intake lengths from the filter to the throttle body.
http://www.cannonballforums.se/viewtopi ... 659bccf14c
Can't seem to find the original but the important bits are in english.

Ken
Ham
021 408 863

by **Luke28** » Tue Apr 24, 2007 8:29 pm

Interesting!!

by **thaphatty** » Wed Apr 25, 2007 12:53 am

redmist sig.

by **Adamal** » Wed Apr 25, 2007 1:08 am

thaphatty wrote:redmist sig.

The answer is, and always has been, HELMHOLTZ!!!!!

by **mr30%jr** » Wed Apr 25, 2007 10:40 am

if youve actually seent the blue top intake its really not that long standard the filter is only 20cm away from the TB and theres only a 30 cm "trumpet" off that with no intake resonators like 90s intakes

by **bluemaumau** » Fri Jun 15, 2007 11:06 am

so will having your intake in under the guard make a difference?

compared to a Cold air box in the bay?

just seems easier to run a pipe through the inner guard :lol:

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