Increasing fuel on the pump

Remi55
Bolt Twiddler
Posts: 33
Joined: Thu Oct 01, 2009 10:44 pm

Increasing fuel on the pump

Post by Remi55 »

Hey,
Have maybe somebody a video or pictures how to get the job done with this max.fuel screw on the non-intercooled pump :?: :roll:

I've got no idea how to do that, couldnt find the damned screw on the pump :lol:
E_T_V
Site Admin
Posts: 439
Joined: Thu Jan 29, 2009 9:38 pm

Re: Increasing fuel on the pump

Post by E_T_V »

On the next car I tune I'll try and get some pictures, or maybe even a video. Actually the sight of me on a video might scare people off!

Not too hard to do, but harder to do well if you see what I mean.
Remi55
Bolt Twiddler
Posts: 33
Joined: Thu Oct 01, 2009 10:44 pm

Re: Increasing fuel on the pump

Post by Remi55 »

Ok, here are the pic form the pump on a 420D should be the same as the 220 D, Bosch VP37 :roll:

Image

Image

Image

This should be the screw, but there is not locknut on it :|
Image

Image
Remi55
Bolt Twiddler
Posts: 33
Joined: Thu Oct 01, 2009 10:44 pm

Re: Increasing fuel on the pump

Post by Remi55 »

I think i got it :mrgreen:

oh my god im stupid :D
It may have a plastic cover over it, or just over the
locknut as shown here. Just prise it off.
by Rover-Ron

It's this black piece of plastic on the Pump , second picture from the end, that has to be cut of :lol: There we got the shinny locknut :) Or am I wrong :idea: :?:
E_T_V
Site Admin
Posts: 439
Joined: Thu Jan 29, 2009 9:38 pm

Re: Increasing fuel on the pump

Post by E_T_V »

Yes that's it.

Can I use/edit your photos for this site?
E_T_V
Site Admin
Posts: 439
Joined: Thu Jan 29, 2009 9:38 pm

Re: Increasing fuel on the pump

Post by E_T_V »

Oops I stole them anyway.

I've annotated them and added them to the original tuning article

http://www.roverdiesel.co.uk/menumappin ... uning.html

I hope it is of use and you don't mind me using the pics. If you do then I'll take them down.
Remi55
Bolt Twiddler
Posts: 33
Joined: Thu Oct 01, 2009 10:44 pm

Re: Increasing fuel on the pump

Post by Remi55 »

Nope I don`t mind how could I :?: :D I'm glad i could help ;)

Wow, know the Tuning Guide looks much better :D
Remi55
Bolt Twiddler
Posts: 33
Joined: Thu Oct 01, 2009 10:44 pm

Re: Increasing fuel on the pump

Post by Remi55 »

I wanted to ask if it's possible to adjust the fuelling without a drive test :?:

What i have in mind is just to remove the front wheels and put the car axle-stand and then test ist on differnt rev ranges. A second person outside could scream when it smokes to much :lol:

what you think good or bad idea :? ;)
E_T_V
Site Admin
Posts: 439
Joined: Thu Jan 29, 2009 9:38 pm

Re: Increasing fuel on the pump

Post by E_T_V »

I'm afraid the only way you can accurately do it is with a test drive or on a rolling road. With the wheels off of the floor you'll find that the engine isn't put under load, and so won't provide as much boost and therefor add less fuel.

If you have a boost gauge and rev the engine in neutral you'll struggle to hit full boost, whereas on the road it is a lot easier to reach max boost when the engine is under load.
Remi55
Bolt Twiddler
Posts: 33
Joined: Thu Oct 01, 2009 10:44 pm

Re: Increasing fuel on the pump

Post by Remi55 »

Thx ;) Ok then I'll have to find a nice playground for my Rover :lol:

Yes I already have a boost gauge fitted . ;)

Does also the increase of fuel change my mpg dramatically or just a little bit, like driving with aircon on :D
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