×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Direct to head throttle bodies - butterfly position

Direct to head throttle bodies - butterfly position

Direct to head throttle bodies - butterfly position

(OP)
When having throttle plate just at the head entry(lets say 1 inch away) is it better to have it positioned vertically instead of horizontally?

As the throttle will cut the flow in upped and lower part if horizontally, where if positioned vertically it cuts flow on left and right part, just like the valves are positioned.

What's Your oppinion?

Cheers

Ziga

RE: Direct to head throttle bodies - butterfly position

I don't think it will make much difference at WOT or very low throttle opening.

At part throttle it will favour one valve over the other and therefore might introduce a bit of swirl and shear between the air streams which just might improve combustion speed and thermodynamic efficiency. Notice I say MIGHT not will.

Testing on a flow bench will give a better idea of probable outcome.

Regards

eng-tips, by professional engineers for professional engineers
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.

RE: Direct to head throttle bodies - butterfly position

(OP)
Yes, I will give it to someone with flowbench to test it up, but I just wanted to ask first if anyone on there has done it before.

Cheers

Ziga

RE: Direct to head throttle bodies - butterfly position


Operational convenience is probably a more important factor. Also it would depend on where the injector sits. My guess would be that this, and more, is why most OEM setups are sideways.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources