G oog le BadWeB | Login/out | Topics | Search | Custodians | Register | Edit Profile


Buell Motorcycle Forum » XBoard » Buell XBoard Archives » Archive through November 23, 2003 » Fuel pressure on stock Buell? « Previous Next »

Author Message
Top of pagePrevious messageNext messageBottom of page Link to this message

Pippi
Posted on Monday, November 17, 2003 - 04:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I've searched the archives high and low but to no avail so here goes. What is the fuel pressure out of a stock Buell X1 EFI fuel pump from say the years 1999-2000? Out of the pump before the regulator.

Regards
PiPPi
Top of pagePrevious messageNext messageBottom of page Link to this message

Josh_
Posted on Monday, November 17, 2003 - 05:02 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Quick search of the archives says 49-50psi (search for fuel and psi)
here's one

What do you mean before the regulator? It's all one unit.
Top of pagePrevious messageNext messageBottom of page Link to this message

Hootowl
Posted on Monday, November 17, 2003 - 05:58 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Yes, there is no "regulator" per se. There is, but it is built in to the pump. With such a short path between the pump and the injector, fuel pressure remains fairly constant in the fuel rail (I'm using car terms here, please forgive me) so a regulator at the end of the rail would just complicate things. It would also require a fuel return line to the tank.

Laters...
Top of pagePrevious messageNext messageBottom of page Link to this message

Pippi
Posted on Monday, November 17, 2003 - 07:28 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Many thanks for the info, 'preciate it. I'm building an EFI for an older Evo powered FXR and am one of the bidders on the Buell pump that Josh linked to above here and wanted a sanity check.

On the regulator being one with the pump (I did not know that) and inside the tank: I assume that means that the fuel pressure is not adjustable in any way? Not a big deal as long as the pressure stays constant at the level mentioned up here.

Anything else that I should keep in mind on what the pump/regulator being one unit brings to the equation?

Regards
PiPPi
Top of pagePrevious messageNext messageBottom of page Link to this message

Josh_
Posted on Monday, November 17, 2003 - 10:49 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

It's keeps it simple, but means you can't change it. As long as you need 50psi you're set.

so I shouldn't have posted the link for all to see?
« Previous Next »

Add Your Message Here
Post:
Bold text Italics Underline Create a hyperlink Insert a clipart image

Username: Posting Information:
This is a private posting area. Only registered users and custodians may post messages here.
Password:
Options: Post as "Anonymous" (Valid reason required. Abusers will be exposed. If unsure, ask.)
Enable HTML code in message
Automatically activate URLs in message
Action:

Topics | Last Day | Tree View | Search | User List | Help/Instructions | Rules | Program Credits Administration