walbro fuel pump
05 July 2006, 01:29 AM
#2
The Walbro pump replaces the O/E and is accessed through a cover on top of the fuel tank. It sits submerged (partially as the tank drains) in the fuel tank on an assembly which also carries the fuel return and guage sender.
It provides about 30% more fuel flow and is advisable when substantial modifications which will require more fuel have been undertaken.
In time as the car ages the effectiveness of the O/E pump will deteriorate in any case.
225 lph Walbros with fitting kits are available for around £90 inc postage. 341 for Classic and 342 for New Age. Fitting takes about an hour, less if you have done it before.
It provides about 30% more fuel flow and is advisable when substantial modifications which will require more fuel have been undertaken.
In time as the car ages the effectiveness of the O/E pump will deteriorate in any case.
225 lph Walbros with fitting kits are available for around £90 inc postage. 341 for Classic and 342 for New Age. Fitting takes about an hour, less if you have done it before.
05 July 2006, 08:12 AM
#3
Scooby Regular
Thread Starter
iTrader: (4)
Join Date: Sep 2005
Location: project 400 complete.
Posts: 681
Likes: 0
Received 0 Likes
on
0 Posts
i have a chance of a 255 of a lad iknow for 40quid brand new ,iv got a my00 clasic with 50k on it,pro-drive b/box,k +n induction and forge dump valve so you think its a wise move to fit it harvey?
and will it affect the fuel consumption in anyway?
cheers mate
and will it affect the fuel consumption in anyway?
cheers mate
05 July 2006, 08:17 AM
#4
Scooby Regular
iTrader: (1)
Join Date: Aug 2005
Location: Manchester ish
Posts: 18,547
Likes: 0
Received 0 Likes
on
0 Posts
they are a worthwhile mod especially for £40, there is a possibility that it may cause slight overfuelling by overpowering your fuel reg but shouldnt do really.
If you do fit it and the kit is complete with the sock etc, dont use the walbro sock use the original subaru one.
If you do fit it and the kit is complete with the sock etc, dont use the walbro sock use the original subaru one.
05 July 2006, 08:20 AM
#5
I had a walbro 255 fitted to my 94 wrx about 3 months back. Fuel consumption isnt really any different as my understanding is thats regulated by ECU anyhow?
Only good thing i did notice which made it worthwhile is that mine was tailing off a little higher round the revs before i think due to old pump not putting enough fuel through - with the new pump though , much better and doesnt lose power at high revs as quick
Only good thing i did notice which made it worthwhile is that mine was tailing off a little higher round the revs before i think due to old pump not putting enough fuel through - with the new pump though , much better and doesnt lose power at high revs as quick
05 July 2006, 09:53 AM
#6
Scooby Regular
iTrader: (4)
Join Date: Nov 2004
Location: where there are no gatsos and no speed limits
Posts: 765
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by jaytc2003
they are a worthwhile mod especially for £40, there is a possibility that it may cause slight overfuelling by overpowering your fuel reg but shouldnt do really.
If you do fit it and the kit is complete with the sock etc, dont use the walbro sock use the original subaru one.
If you do fit it and the kit is complete with the sock etc, dont use the walbro sock use the original subaru one.
05 July 2006, 10:11 AM
#7
Scooby Regular
iTrader: (1)
Join Date: Aug 2005
Location: Manchester ish
Posts: 18,547
Likes: 0
Received 0 Likes
on
0 Posts
Trying to remember which way around this goes.
One of the socks is a bit bigger than the other (think its the walbro) doing a search on here for fitting a walbro will tell you the exact reason.
One of the socks is a bit bigger than the other (think its the walbro) doing a search on here for fitting a walbro will tell you the exact reason.
Trending Topics
05 July 2006, 05:13 PM
#8
Scooby Regular
TBH when I changed mine I couldn't see any real reason not to fit the Walbro one, but I retained the Subaru one anyway so that's that. IIRC the Walbro was a bit smaller. But then it was actually clean as well...
05 July 2006, 06:03 PM
#9
Scooby Regular
iTrader: (4)
Join Date: May 2005
Location: midlands......
Posts: 1,966
Likes: 0
Received 0 Likes
on
0 Posts
walbro one is smaller than oe so does not sit as far down into the swirl pot as the subaru item.... could result in fuel pick up problems under hard cornering etc......
05 July 2006, 09:47 PM
#11
j555hks: Chances are your car is fine with the O/E pump. You have relatively low mileage and modest mods so there is no big extra fuel requirement.
Using an LM1 Wide Band AFR or similar, I would check the readings on the road.
If the AFRs are OK I would stick with the O/E pump for now but if for any reason the AFR was not rich enough at full boost and higher up the rev range I would opt for the Walbro.
Expect fuel consumption to increase marginally with the Walbro in like for like situations.
Using an LM1 Wide Band AFR or similar, I would check the readings on the road.
If the AFRs are OK I would stick with the O/E pump for now but if for any reason the AFR was not rich enough at full boost and higher up the rev range I would opt for the Walbro.
Expect fuel consumption to increase marginally with the Walbro in like for like situations.
Thread
Thread Starter
Forum
Replies
Last Post
Mattybr5@MB Developments
Full Cars Breaking For Spares
28
28 December 2015 11:07 PM
Mattybr5@MB Developments
Full Cars Breaking For Spares
12
18 November 2015 07:03 AM