Turbos and throttle bodies

hi.

im thinkin of runnin a turbo motor and want to use my 43mm individual throttle bodies on it.

any idea if i will see an increase in power figures from doin this?

its on an 8V turbo

 

are gixxer bodies fuel injected? Can they run conventional injectors?

 

anyone know of any bike with 32mm throttle bodies?

or where i can find out?


mike

 

Nissan Pulsar GTiR's run throttle bodies and turbos on their SR20 motors which is the same motor in the Silvia/200sx without the throttle boddies.
The throttle bodied GTiR motor produces 20kw more than the non throttle bodied 200sx.
But just from experience(not my own) all the big Hp turbo motors run single throttles(albeit very big) and custom inlet manifolds with large capacity plenums.
This could be just for ease, and that no one has gone to the trouble of fitting throttle bodies to their big hp motors(not sure).

 

i'm running tb's on my dual-charged car
will let you know how i get on come May

tt

 

ooooooooooh is that a hint at inters?

 

you mean a 'hinters' ho ho ho. I think i'd better leave

tt

 

the throttle bodies are fuel injected. the injector holes are blocked off on the bodies and im using G60 injectors.

you need standalone engine managment really.

 

Which GSXR throttle bodies did you use?

I was looking into fitting Hyabusa (sp?) t/b`s but with the price of the management on top and fabricating the inlet fittings it seemed a bit too much work.

 

750 and above. anything else is too small.

search for mega squirt. they do a DIY fule managment. wait a few months and they do a full engine managment, really top notch stuff and its only gunna be like 200 quid. downside is you got to build it yourself. inlet manifold needs to be 12" at least for a N/A engine to get the power band down to a decent rev range. go on the www.vwvortex.com and go on the forum and search for ITB in the Golf I section. there is someone there doing a 16V on the same Throttle bodies and injection system





back to the point.

will the throttle bodies be overkill, or be worth it? i dont mind the extra work and i recon they look cool. and sound awesome especially on a turbo motor.

 

probably not needed really, sell to someone with a 16v

 

Good thread on Vortex, never thought of using the original inlet manifold!

 

yeh, pretty clever stuff. im keepin the ITB's. its going to give me a little bit more power, so its worth the hastle.

 

find out if the spindles are sealed. some are some are'nt. if not they can leak boost
Lee

 

Arrrrgh, going slightly off topic here.

YOU CAN'T JUST MAKE SWEEPING STATEMENTS !
Such as 'the inlet manifold needs to be at least 12" long'

Theres way, way way to many variables to make this 100% accurate.

As for the bodies, do it, be different, itll eb aun little engineering project and come up with some interesting results.

Dhalback did it on their 900bhp monster mk4 golf...

 

stealth built a 16v turbo on TB's for a customer-- supposedly it can kick out around 400bhp!!

So having a chat with vince might clear up some issues

stef

 

no
it's the seals on the end of the throttle spindles, check on the bike turbo sites

 

I'm not shooting the messanger, just understand what you're quoting, if everyone did, there would be alot less missinformation on the forum

Gixxer bodies or any other sort of bodies seem like alot of work to me, especially on the linkage and manifold side on things..

I'd personally (and will be sometime soon hopefully) make some out of some old webber 40's (bearing in mind size is slightly less important with bodies because you don't have to have the air speed to help pick the fuel up)

Plenty of stumpy manifolds about that leave space to play with trumpet lengths and air filter combo's (you can sometimes do a bit of pulse tuning using certain types, but its a bit fiddly to my understanding)

The linkage will be less of a pain in the arse aswell i'd imagine, being as its been done lots of times before.

Plus, the carbs are everywhere, and they're cheeeeeeeeeap.