throttle body
Turbo Mini Forums

Need to move on a abit with my pleduiniunm

What throttle body size would you recommend? and why?

Just to recap spec is 7 port, omex ecu

Mine is a 60mm beacuse it was an intermidiate size between the pipwork (50mm) and the dia of the plenum. I didn't want it to become a restriction, so sized it bigger than the pipework but not so big it wouldn't fit in. It was also what was available at the time, off a Grananda 2.0L.

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1/4mile in 13.2sec @ 111 terminal on 15psi

I've gone for 54mm, another common size from a Rover 800.

Similar logic as matty, same size as plenum pipework.

With a single throttle body before the plenum and port injection (I assume that's what you are doing) there is no point in going bigger IMHO. A bigger one will just be hard to control at low opennings without snail cams and all sorts of other things.

The way I see it, throttle body size only becomes really important with individual throttle bodies and throttle body injection and even then, mainly on normally aspirated.

Schrödinger's cat - so which one am I ???

Thread revival,

Neil, did you ever sort a throttle body, and you other gents out there , matty, jim, carl, etc, I gather theres nothing specific it needs so its just down to pipework size and manufacture is more of a personal preference.
Realisticly il be thinking ford as thats my next of kin to minis.lol

Rick

I use a Ford TB like this one

http://cgi.ebay.co.uk/FORD-ESCORT-MK4-S2-T...=item3361f8742d


from a Mk4 escort. You need to change the TPS for a 0-5v, rather than the standard switch.

I think it is around 55mm which is a bit large. I get full boost with just 10% throttle on the 998Ti.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

rick

yes i bought a 56mm elise jobbie its fairly small and uses the same wabash tps that most use, its the same as the rover 52mm and the standard elise just bigger bore there getting hard to find now i believe, however not sure if i will use it or not now as i have been offered something else.

It seems that as long as its no more of a restriction than your 50mm intercooler piping anythings fine

Edited by wolfie on 28th Oct, 2010.

I should have used a Ford as that's also my next of kin....

With hindsight the Rover one i've got has a totally unique TPS and the IACV is also only used on a few models and some LandRovers. It's a nice integrated package but not as common as I thought it was - I bought a second one as a spare off eBay, NOS, no complaints about the quality but it was an exact mirror image of the one I've got... (left handed instead of right handed if that makes sense). Only Leyland/Rover could have done that :)

Schrödinger's cat - so which one am I ???

Paul , why did you swap the tps to .5v is it as thats a series2 turbo one that run on mfi as most of the escort lads swap to the fiesta one thats efi , then they can run cossie managment ?

Rick

I needed a 0-5v variable output friom the TPS. The one that was fitted to the TB I got was just a switch.

Not sure exactly what it came off but it is physically the same as in the ebay ad.

It's a compact, simple TB.......

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Ok thanks

Rick

The one fittd to Don, is from GOLF MK2 GTI 16V APPARENTLY,opps caps

WWW.FORCE-RACING.CO.UK PLEASE CLICK HERE

the golf TB as above looks a good bet, a guy at work is megasquirting his golf and fitting a charger,

I'm using a chavalear TB with a fiesta stepper idle valve.

whatever you can lay your hands on eh!

Rover 820 TB with IAC stepper. mainly because the IAC is via the main throttle, and, that allows me to configure ALS without any additional valves if I felt the need to. Also to note that the HP of the standard 820T will be similar, another reason to use its injectors and TB

Bit on the bulky side though

Why not a vtr tb? They are cheap and readaly avalible iirc tps and steppermotor on them

Drives
-Ford S-max Mk2 Ecoboost
-Rover 100 VVC #2 - track project

Searching is all you need on TurboMinis

I like the Elise one http://cgi.ebay.co.uk/Lotus-Elise-S1-56-mm...=item3cb1dbc56c

Let me know if you're selling yours Neil. Just having a scout on Ebay there's lots of big ugly ones. The elise one is the neatest.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

wil yes £55 if you want it

I would like it if Will does not :)

someything i forgot is i looked into gaskets as the elise uses a rubber seal on the plenum side, so i have also had a cometic gasket shipped over that cost me a tenner if you want it

yes please again, but of course, Will have first dibs.