looks like i need dual pumps now
08-18-2009, 09:06 PM
#11
TECH Senior Member
Thread Starter
iTrader: (10)
Join Date: Oct 2004
Location: Crystal Springs, MS
Posts: 14,068
Likes: 0
Received 2 Likes
on
2 Posts
J, if I read your posts correctly you currently have no fuel problems, right? At up to 12 PSI you are at 11-11.2 A/F and the fuel pressure is not dropping. So you are just wanting to upgrade just in case or to add more boost.
With how well one Walbro 255 is working why not go with the dual Walbro setup like the ones Nasty/Lonnie sells? I like how it only kicks the second pump on after a certain boost level that way it doesn't heat up the fuel too much by flowing too much and having to return it to the tank.
With how well one Walbro 255 is working why not go with the dual Walbro setup like the ones Nasty/Lonnie sells? I like how it only kicks the second pump on after a certain boost level that way it doesn't heat up the fuel too much by flowing too much and having to return it to the tank.
No problems yet, the single pump is about 4 years old and i dont want to tempt fate
12psi and with the AFR at 11.1 the pressure looks to be holding on my autometer gauge. but i havnt really watched it too close on nitrous, but the AFR stays at 11.0.
I thought about twin pumps for a long time.. but this single 044 was cheaper and should be plenty for what i want to do..
Oh and them injectors might be on their limit on 16# boost..
To max them out or not... 
08-19-2009, 07:53 AM
#12
On The Tree
iTrader: (10)
Join Date: Oct 2006
Location: Medicine Hat, alberta, Canada
Posts: 181
Likes: 0
Received 0 Likes
on
0 Posts
from what i seen on bosch's website, it looks like its an inline pump in the picture, is it? or is there an intank one, and what is the flow rating
08-19-2009, 11:30 AM
#13
Launching!
iTrader: (26)
Join Date: Dec 2006
Location: California, KY
Posts: 218
Likes: 0
Received 0 Likes
on
0 Posts
J, if I read your posts correctly you currently have no fuel problems, right? At up to 12 PSI you are at 11-11.2 A/F and the fuel pressure is not dropping. So you are just wanting to upgrade just in case or to add more boost.
With how well one Walbro 255 is working why not go with the dual Walbro setup like the ones Nasty/Lonnie sells? I like how it only kicks the second pump on after a certain boost level that way it doesn't heat up the fuel too much by flowing too much and having to return it to the tank.
With how well one Walbro 255 is working why not go with the dual Walbro setup like the ones Nasty/Lonnie sells? I like how it only kicks the second pump on after a certain boost level that way it doesn't heat up the fuel too much by flowing too much and having to return it to the tank.
-Nate
08-19-2009, 02:37 PM
#14
TECH Resident
iTrader: (36)
Join Date: Dec 2006
Location: Lafayette, CA
Posts: 990
Likes: 0
Received 0 Likes
on
0 Posts
With how well one Walbro 255 is working why not go with the dual Walbro setup like the ones Nasty/Lonnie sells? I like how it only kicks the second pump on after a certain boost level that way it doesn't heat up the fuel too much by flowing too much and having to return it to the tank.
thanks, Rick
08-19-2009, 10:45 PM
#17
TECH Resident
iTrader: (36)
Join Date: Dec 2006
Location: Lafayette, CA
Posts: 990
Likes: 0
Received 0 Likes
on
0 Posts
I found this on a Vendor Site. It looks like the Bosch 040/044 rates pretty well at 60 psi vs the Walbro HP255 adn the Aeromotive.
I'm already running a Walbro HP255 in my tank. I wonder if there is any advantage to using the Walbro to feed the 044 and run them both all the time? Since I have a 2005 returnless system, I would have to add a FPR after the 044 and pump it back to the tank. Could even try to use a 1" diameter x 12" pipe in between the tank and the rear mounted inline 044. That might keep the 044 from sucking the 255 dry.
Rick
I'm already running a Walbro HP255 in my tank. I wonder if there is any advantage to using the Walbro to feed the 044 and run them both all the time? Since I have a 2005 returnless system, I would have to add a FPR after the 044 and pump it back to the tank. Could even try to use a 1" diameter x 12" pipe in between the tank and the rear mounted inline 044. That might keep the 044 from sucking the 255 dry.
Rick
Last edited by Rick_Vor; 08-21-2009 at 08:23 AM.
08-19-2009, 10:54 PM
#18
TECH Senior Member
Thread Starter
iTrader: (10)
Join Date: Oct 2004
Location: Crystal Springs, MS
Posts: 14,068
Likes: 0
Received 2 Likes
on
2 Posts
this would be the absolute best setup right here..
it was in a magazine featuring a high HP road racing EVO i think..
Walbro intank feeding this surge tank.. that feeds a Bosch 044.
it was in a magazine featuring a high HP road racing EVO i think..
Walbro intank feeding this surge tank.. that feeds a Bosch 044.
08-19-2009, 11:04 PM
#19
Former Vendor
iTrader: (11)
Join Date: Feb 2006
Location: California
Posts: 460
Likes: 0
Received 0 Likes
on
0 Posts
08-19-2009, 11:17 PM
#20
TECH Senior Member
Thread Starter
iTrader: (10)
Join Date: Oct 2004
Location: Crystal Springs, MS
Posts: 14,068
Likes: 0
Received 2 Likes
on
2 Posts
geez... thats a killer little setup!! lot of stuff in a small package..
if i were to do it, id make everything myself.. but i dont see me maxing out a 044 ever.
if i were to do it, id make everything myself.. but i dont see me maxing out a 044 ever.