throttle bodies

[mikesclio]

can someone give me a brief explanation as to what they are. also, where do you get them from!?

 

[unofficialPete]

Was actualy reading this about 5 minutes ago lol



http://www.quest4.co.nz/services_throttledbodies.htmhttp://www.quest4.co.nz/services_throttledbodies.htm

 

[Roamer]

Ok, as that company says, basically it lets more air in, so you can mix more fuel in, so that in turn you get a bigger explosion - thus more power.

Now what they are on about is modifying the standard single throttle body that all fuel injected cars have, where as throttle bodies means replacing the one existing throttle body with one per cylinder, this allows you to get even more air in, more fuel etc etc etc......

In the UK Jenvey are the main guys (http://www.jenvey.co.ukhttp://www.jenvey.co.uk), but havent got a manifold for the 1.6 16v engine.

If youve got anymore questions, please post them up, as either BenR or I will probably have the answer (I hope LoL)

 

[geordiepaul]

So with Throttle Bodies can you expect your fuel consumption to dramatically increase? Since its mixing more fuel?

What about cooling? Doesnt the engine run hotter?

Hows yours coming along Roamer?

 

[MarkLD]

As you are making more power therefore you require less throttle to go the same speed so fuel consumption will not increase. As throttle bodies require a programmable ECU then the engine can be tuned for optium use of the fuel it uses - all is burnt.

If the mixture and timing is correct then the engine shouldnt run much hotter, depends how stretched the standard cooling system is. Also depends if the throttle bodies will clear the radiator.

 

[geordiepaul]

Quote: Originally posted by MarkLD on 27 August 2003


As you are making more power therefore you require less throttle to go the same speed so fuel consumption will not increase. As throttle bodies require a programmable ECU then the engine can be tuned for optium use of the fuel it uses - all is burnt.

If the mixture and timing is correct then the engine shouldnt run much hotter, depends how stretched the standard cooling system is. Also depends if the throttle bodies will clear the radiator.





LOL yeah but my foot is alway planted to the floor anyway!

Sounds good...I want some!

 

[BUTRE]

If you want more power than std... fuel consumption MUST increase.

 

[BenR]

Quote: Originally posted by MarkLD on 27 August 2003


As you are making more power therefore you require less throttle to go the same speed so fuel consumption will not increase. As throttle bodies require a programmable ECU then the engine can be tuned for optium use of the fuel it uses - all is burnt.

If the mixture and timing is correct then the engine shouldnt run much hotter, depends how stretched the standard cooling system is. Also depends if the throttle bodies will clear the radiator.





fuel consumption will increase simply because speed is function of RPM and gearing. TO go the same speed you will need the same RPM, the engine will be making more power at that rpm and you will have worse economy.......unless you map the engine cruising speed to run particuarly economic at that throttle position/rpm and gear.....which is pointless.

Why worry about MPG and BHP!?

 

[MarkLD]

Suppose what I was trying to say was it would take you less time to get to a certain speed so requiring less time under full throttle conditions and allowing more time on part throttle cruising. Depends how you drive though and very small amounts in economy terms. However tuning an engine for economic running a certain throttle postion/rpm and gear can be quite useful as on todays roads its not always possible to run flat out Anyway, back to Ben who can explain these a whole lot better than me.