What Fuel Pump?

[nikp]

Ok, seeing as though i am rebuilding my FD engine, and am almost certianly going to be going single turbo now, i need to start shopping for the bits and pieces i\'ll need. So, currently, i am looking at the secondary fuel rail kits available, and so far, RE:Worx kit looks good. However, i don\'t know which fuel pump I\'m likely to need. I want a hastle free fitment of the pumps, so it\'s either the Bosch 040, or the Bosch 044 - obviously I don\'t want to have to spend money if i don\'t want to. So, out of those 2, which should i be going for?

Will the lower delivery of the 040 be sufficient? 102 litres @ 6.5bar (Bosch 040) vs. 200litres @ 5 bar (Bosch 044)

Cheers,

Nik

[banned advertiser]

Ours are a similar price but also available in colours.
http://www.rotaryart.uk.com/acatalog/Rotaryart_fuel_products2.html

[slippers]

Nik

I\'ve got a relatively new fuel pump you can have for £100 see below;

http://www.mazdarotaryclub.com/forums/showthread.php?t=23049&highlight=apexi+fuel+pump

PM me if your interested

Regards
Jon

[Jit]

last time i checked, the bosch 044 from clive was a very good deal (120 or so plus vat iirc....may as well get that in case you decide to do furutre upgrades..

[slippers]

Heres some info you may find helpful;

http://www.rx7club.com/showthread.php?t=533171&highlight=fuel+calculator

If you read the post and follow the link to max coppers site you can have a play with some variables to see how upgrading different parts affects what you can achieve.  I would offer a word of caution and say that this is only a guide and a good tuner should be able to offer more specific advice as to your system and state of tune.

Also the apexi fuel pump is an upgraded pump (~£250-300 new) that should be able to flow around 280L/hr, propbably more than you\'ll ever need.  Again look on max\'s site where he has more info on a similar pump.#

Hope this helps
Regards
Jon

[antnicuk]

I had an 040 and it maxed out at 350 rwhp,  i then put a 959 in tank and it maxed at 390,  the 044 hasnt maxed but its no good in tank.

IIRC the skyline pump although not cheap, is the best flow for a direct replacment, the 044 is really good flow but is best used with a swirl pot and gravity fed.

[jamie_eaton]

I had an 040 and it maxed out at 350 rwhp,  i then put a 959 in tank and it maxed at 390,  the 044 hasnt maxed but its no good in tank.

IIRC the skyline pump although not cheap, is the best flow for a direct replacment, the 044 is really good flow but is best used with a swirl pot and gravity fed.

have to ask mate, what do you mean the bosch 044 pump is not good in tank? what problems are met?

[antnicuk]

it sucks like buggery and can suffer from starvation if its in tank when the fuel sloshes about round the bends so its better if its fed from a swirl pot,  just what i have heard though.

[20B_boy]

just what i have heard though.

Me too ;-)

[nikp]

Bugger! This is not good news at all! Was hoping my shopping list had stopped growing! I also don\'t want the hastle of having to plumb in a swirl pot....as i don\'t know how!

[C-WestRZ]

im not a pro, but been looking at fuel pump issue 4a while now.
My end decision is the modified Apexi GTR one. Flows and doesnt suffer from the starvation and bend sloshing when u have just a quarter of a tank left.
not cheap tho at £280

[jamie_eaton]

funny you should say that, at 1/4 tank i thought i had problems, i may just see about a swirl pot then

[banned advertiser]

If using a stock pump, on anything less than 1/3 of a tank, if cornering hard or drifting you will see fuel stavation, its not just the bosch.