bick888

Hello,
im wanting to get more air into my car, but dont want to fork out paying £250 for a brand new 67mm throttle body. was wondering if theres anything else that i could use or a bigger body off a different car which would work! any1 selling a second hand one? any ideas, on bit of a budget !
cheerz

STbash

is it an RS or an ST that you have?

a common thing for the ST170's is to port your standard TB, needs a little work but like the bigger TB's it gives better throttle response etc..

just on a TB alone you will get minimal power gains..

bick888

none of them, its a 2.0 zetec!

kjc300

iTrader: (1)

http://cgi.ebay.co.uk/COSWORTH-DURAT...QQcmdZViewItem


Dont know what these go for?

Wardy257

There is no point, the inlet is very restricted. There is nothing practical you can do, lots of expensive bodges about though.

STbash

as wardy said...

you couldnt really go for an st170 inlet either as they work differently because of the vvt...

just stick with the induction kit sadly mate

bick888

im interested by the bodges!lol. so theres no other inlets which arent so restrictive that fit?
cheers

STbash

not sure about the RS but its a turbo so i guess its a no no.. but yeh the ST170 has VVT so is a completely different animal...

Wardy257

The inlet is more restrictive than the TB!!! Besides a 60+mm TB is way too big and will do more harm the good. EFI is not like carbs, biggers is not better especially when you can not re-calibrate sensors and fully map the ECU. Even an induction kit is a waste of time.

percybigun

you can get the 65mm throttle body from here for £120, dont let some UK performance parts place rip you off charging you £250!

http://focus.c-f-m.com/index.asp?Pag...PROD&ProdID=20

i have got one on a supercharged zetec and its very very good.

i reckon it would work OK on a NA zetec so long as you have good induction system, bigger bore maf, good exhaust and manifold, proper mapping, and maybe port the intake of the inlet manifold out a bit to make use of the bigger diameter TB.

Luca

iTrader: (2)

A standard throttle body is good for 300 bhp so unless your going past this point stick with a good filter etc.

bick888

cheerz for the advise! i now need to find another way to get a bit more power but not breakin the bank! any other ideas?
please help lol

Wardy257

There is no cheap way of getting proper gains. Lots of expensive ways of getting false gains though.

bick888

when i say cheap, i dnt mean peanuts cheap.lol just somthing that isnt goning to cost me thousands. summit round £200.but if theres somthing more expenceive but really worth it, im sure i can save. long as its not a turbo or supercharge conversion lol

already got:
Manifold
Decat
Full system
Induction kit
Bluefin
lowered 35mm all round.
cheerz

Wardy257

You have already spent a lot of money for nothing so save what you have left.

bick888

For nothing? dnt quite understand how that works mate.

Wardy257

You have most likely gained nothing from your mods so far.

The standard exhaust flows enough for 150 bhp, bluefins use generic maps, induction kits just make noise and upset the MAF.

An internally standard 2.0 ZETEC can produce 165-170 bhp when tuned properly. It is the inlet and standard mapping that reduce this to 136 bhp. What you have done wont really change those issues. Tuning modern engines is not the same as old engines.

bick888

whatever trevor! has given me round 20 more brake. dont sound alot, but every little helps!