no reason to buy a Walbro 255L anymore
#42
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Guess you missed my comment in ashtons thread? The flow rating drops as pressure increases. 255lph is best case.....it only gets worse from there. Your assumption that the walbro will flow more than the 600cc injectors may be incorrect for the actual pressures being used.
Also remember injectors are rated at a certain pressure too. If you increase the pressure at an injector then the cc rating should increase as well.
Also remember injectors are rated at a certain pressure too. If you increase the pressure at an injector then the cc rating should increase as well.
I was on 800's when my pump ran out rich.
#43
CJ Motorsports
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the gentlemen in that thread who said he bought that pump and posted the pics of it... he said that the inlet and outlet is larger, well... walbro 255s have been available with that size inlet for years, and the outlet is the same 5/16 they all have.
BTW guys... I know that our CJM Twin pump is not compatible with standard walbro GSS342... however, our pumps in the twin assembly ARE in fact an OEM application and if walbro makes a larger pump that is the same dimensions, there is no way they will ignore the OEM application we use the pumps from, and we will be able to swap them in!
BTW guys... I know that our CJM Twin pump is not compatible with standard walbro GSS342... however, our pumps in the twin assembly ARE in fact an OEM application and if walbro makes a larger pump that is the same dimensions, there is no way they will ignore the OEM application we use the pumps from, and we will be able to swap them in!
#44
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What a scam artist! Boo! The pump is a 255 that's been magically modified to flow 385 lph. Right.
http://www.s2ki.com/forums/index.php...#entry19894061
http://www.s2ki.com/forums/index.php...#entry19894061
Last edited by rcdash; 12-08-2010 at 11:53 AM.
#46
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We will have the walbro 325lph pump in our hands prior to its release for testing, but that is still about a month out as walbro themselves are still in their testing stages. We have the DW300 in our hands now and will being testing it very soon and will publish the results when we have them. So for now its either a single GSS342 or step up to the plate with Cj's twin setup.
#47
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We were intrigued as well, so I ordered one from EuroExotic. We got the pump in and cross-referenced the part number, it is for the GM Cyclone and Typhoon...but it is just a 255LPH. The flow bench confirmed that it is a 255, also.
Our DW300 is not a rebadged pump. It was designed with DW and is being exclusively manufactured for DW.
Can't wait to hear from you guys, Forged and Injected! Let's see what the DW300 can do in the Z/G platform.
For those that also browse other makes (specifically Mitsubishi), you may be seen posts about our DW300 and DW 1500cc injectors in a 1st Gen AWD DSM putting down 620awhp on E85.
Our DW300 is not a rebadged pump. It was designed with DW and is being exclusively manufactured for DW.
Can't wait to hear from you guys, Forged and Injected! Let's see what the DW300 can do in the Z/G platform.
For those that also browse other makes (specifically Mitsubishi), you may be seen posts about our DW300 and DW 1500cc injectors in a 1st Gen AWD DSM putting down 620awhp on E85.
Last edited by Chris@DW; 12-14-2010 at 03:43 PM.
#48
pics of DW pump? dimensions?
i wonder if the denso 195130-1020 used in supra's drop in. They flow 30L/hr more than the typical GSS341/2 walbro
http://www.densofuelpump.com/index.html
i wonder if the denso 195130-1020 used in supra's drop in. They flow 30L/hr more than the typical GSS341/2 walbro
http://www.densofuelpump.com/index.html
Last edited by str8dum1; 12-14-2010 at 09:32 AM.
#49
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a Supra pump is much larger than a Walbro, has a positive and negative 'pole' on them and not a conventional plug as I recall (we used to use them on older Mitsu's and Subaru's back in the day)
#50
ya i figured it was more along the bosch 044 size. if they were, finding a pigtail would be easy enough. Realistically, if there was a better option in the standard 255L, everyone would know about it.
Thats why I was wondering if the DW is going to be the same size and plug orientation as the GSS342. 3 of those in the SP triple hanger would be nice.
Thats why I was wondering if the DW is going to be the same size and plug orientation as the GSS342. 3 of those in the SP triple hanger would be nice.
#54
ya i figured it was more along the bosch 044 size. if they were, finding a pigtail would be easy enough. Realistically, if there was a better option in the standard 255L, everyone would know about it.
Thats why I was wondering if the DW is going to be the same size and plug orientation as the GSS342. 3 of those in the SP triple hanger would be nice.
Thats why I was wondering if the DW is going to be the same size and plug orientation as the GSS342. 3 of those in the SP triple hanger would be nice.
#55
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maybe you should sell it and get a triple pump. Resale on the twin pump is pretty high so you won't lose much money.
Cass: who needs a fuel gauge?!?
#58
big single does not mean an 044. LOL
Weldon 2035, aeromotive eliminator/pro, fuellab 42401, etc. Mount it right on the subframe.
triples mean triple the plumbing, triple the chance of pump failure. triple the fuel heating...
you can go triple, but if its true your gas gauge doesnt work below 1/4 thats blah esp on e85 where you get horrible mileage to begin with.
Getting the venturi to work using an external might take some work, but Ithink if you ran your return line thru the venturi like the standard CJM stage 1, it would be just fine. Pretty sure thats what pulls fuel from the other side of the saddle.
Weldon 2035, aeromotive eliminator/pro, fuellab 42401, etc. Mount it right on the subframe.
triples mean triple the plumbing, triple the chance of pump failure. triple the fuel heating...
you can go triple, but if its true your gas gauge doesnt work below 1/4 thats blah esp on e85 where you get horrible mileage to begin with.
Getting the venturi to work using an external might take some work, but Ithink if you ran your return line thru the venturi like the standard CJM stage 1, it would be just fine. Pretty sure thats what pulls fuel from the other side of the saddle.
Last edited by str8dum1; 12-15-2010 at 12:44 PM.
#60
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big single does not mean an 044. LOL
Weldon 2035, aeromotive eliminator/pro, fuellab 42401, etc. Mount it right on the subframe.
triples mean triple the plumbing, triple the chance of pump failure. triple the fuel heating...
you can go triple, but if its true your gas gauge doesnt work below 1/4 thats blah esp on e85 where you get horrible mileage to begin with.
Getting the venturi to work using an external might take some work, but Ithink if you ran your return line thru the venturi like the standard CJM stage 1, it would be just fine. Pretty sure thats what pulls fuel from the other side of the saddle.
Weldon 2035, aeromotive eliminator/pro, fuellab 42401, etc. Mount it right on the subframe.
triples mean triple the plumbing, triple the chance of pump failure. triple the fuel heating...
you can go triple, but if its true your gas gauge doesnt work below 1/4 thats blah esp on e85 where you get horrible mileage to begin with.
Getting the venturi to work using an external might take some work, but Ithink if you ran your return line thru the venturi like the standard CJM stage 1, it would be just fine. Pretty sure thats what pulls fuel from the other side of the saddle.