suzuki gsxr 600 throttle bodies. now with pics

citroaxgtr · Post by **citroaxgtr** » Sun Aug 20, 2006 2:31 pm

i have bought gsxr throttle bodies from a guy on the net.. the secondary butterflys have been removed.. i was just wondering if these were needed. i am using them on a 1600 8v citroen saxo vtr engine that i have fitted to may citroen ax.
also any advice on building a manifold for these.. do i need a fast idle valve...

whittlebeast · Post by **whittlebeast** » Sun Aug 20, 2006 2:50 pm

those are factory traction control or at least HP limiters.

AW

citroaxgtr · Post by **citroaxgtr** » Sun Aug 20, 2006 3:25 pm

so basicall what you are saying is, they are not needed for anything.
are they needed for cold starting or anything..
if i was talking in carburettor terms they look like the choke and spindle but being throttle bodies i am unsure as i am no efi expert.

citroaxgtr · Post by **citroaxgtr** » Sun Aug 20, 2006 3:54 pm

just been looking at the t/b set-up.
im not sure what all the pipes are for.
there are four thin pipes that connect single out to one thin pipe,
they are connected to the underneath of the throttle valve (engine side).
i am guessing these pipes are for the map sensor.
the second load of pipes also single out to one which are a bit thicker, they sort of line up with the throttle valve when the trhottle valve is closed.. im not sure but i think this might be something to do with the fuel pressure regulator or fast idle valve..
then there is the third thin pipe on its own, this goes to the third t/b to the under side of the throttle valve. i have no idea what this one is for..
can anybody help me with this?.
cheers, jamie.

MarkW · Post by **MarkW** » Sun Aug 20, 2006 11:20 pm

Any pics? I'm not sure which pipes you mean

Bow · Post by **Bow** » Mon Aug 21, 2006 7:06 am

whittlebeast wrote:those are factory traction control or at least HP limiters.

AW

Actually, the secondary butterflies were there to provide more consistant power at lower RPMs.

The TB's were a bit large for the motor at lower RPM ranges, so the Secondaries smoothed out the throttle response

citroaxgtr · Post by **citroaxgtr** » Mon Aug 21, 2006 7:18 am

can anybody help me with my third reply about the pipes please?.

MarkW · Post by **MarkW** » Mon Aug 21, 2006 7:51 am

Jamie,

Pics would really help, my 600 TB's have two nipples beneath each body (engine side of the butterfly) I currently use one set of take off's for the Squirt MAP and the other to the fuel pressure reg. My manifold then has a central take off that feeds the brake vacuum

citroaxgtr · Post by **citroaxgtr** » Mon Aug 21, 2006 7:56 am

cool, o.k so for the servo vacuum do you use one of the manifold ports or do you use all of them?.
i will get pics posted tomorrow.. i have to do a night shift soon so i havent got much time..

MarkW · Post by **MarkW** » Mon Aug 21, 2006 8:55 am

well on mine it's one take off between the middle two ports but the gasket provides a vacuum tract to all four so it's equivalent to tapping each