8 replies to this topic

[Spoonz]

looking around i have noticed people are using the facet red top fuel pumps,

but im looking at the specs of them and they only go up to like 7 psi ? am i being silly ?

looking threw a Cresent suzuki bike GSXR manaul (my z car has a gixxer engine) it states the fuel pressure should be 43psi !

i cant find a pump that will reach this ? is this correct?

spoonz

[koss]

You need a injection type pump or one from the bike.

[Spoonz]

i know this, but do you know of any after market pumps< (got a website ?) even demon tweeks dont have nothing usefull

new pump from suzuki is £300, but you can get them from ebay for £50 ish, althought is has to be mounted under the tank (drilling a holes that could leak)

anyone ?????

Edited by Spoonz, 18 March 2007 - 09:44 PM.

[koss]

I got mine from my local motorist discount shop £80 Boshce same as RS turbo and cavalier

[Spoonz]

what pressure rating ? £80 is a good price,

thankyou for that,

anyone got a website on hand ?

spoonz

[koss]

Take your pick here. http://www.fuelsyste...k/injection.htm
you may need a pressure reg to reduce it if they don't do one for your pressure.

[mini 1000 gsxr]

hi there i used a fuel pump from a hyabusa from a bike breakers no need or a regulator just bolt on and connect hoses as the pressure is the same

andy

[markrally]

hi there i used a fuel pump from a hyabusa from a bike breakers no need or a regulator just bolt on and connect hoses as the pressure is the same

andy

The hayabusa pump has an adjustable fuel pressuer regulator built in but it is activated via a vacum pulse from the inlet manifold to adjust the pressure as the revs increase so just running it as a pump will not give you a correct pressure???
Hence the need for an adjustable pressure reg.

One disadantage i noticed with the hayabusa pump and fuel system is that it doesnt have a fuel return so when it has been running for a while then left to idle it suffers from fuel vapourisation as the fuel is warmed by the coolant pipes in the tunnel and because it isnt getting used quickly it just vapourises and cuts out until it cools down, if it was a circulating system this wouldnt ocurr so i am modifying my current setup foa recirc system.

Cheers

[koss]

Very true mark, I would also like to add the tuning factor, if you are going to add a power commander its nice to have more fuel pressure if needed.