injector sizing

[drifter1982]

hello all how do i work out what size injectors are required.

i will be running

bridge ported 13b
hks t51r hks 60mm WG
all supporting mods
power fc


also i am looking for 500-550 bhp

Also i am ideally looking for an in tank fuel pump what would people advise Aeromotive, Walbro, Bosch

If anybody could show me how to work out the following that would be brilliant. i would like to know how to work it out as oppose to someone saying you need 1000CC AND 200OCC ETC

Many thanks appreciate all your help comments

lee

 

[jack.am]

http://wannaspeed.com/content/6-fuel-system-calculator

850 primaries and 1680 secondaries are a very common fuel setup and according to the above are good for 672bhp. This is based on 45psi base fuel pressure, 14psi boost pressure, 85% duty.

As for fuel pumps, Walbro GST450 will pretty much drop straight in and will flow more than enough fuel. Downside is they pull a fair bit of current and are quite noisy.

 

[drifter1982]

Hello there thanks you for your reply. I had a good read up on the walbro and I have have heard good things so this is an option.

As per the injectors I was thinking 850 and 1680s as a few forums have suggested this setup.

Thanks for the link that explains it better.