injector size.

I’m looking for some kind of calculator or formula to figure out what size injector i should be using. I looked in the Sticky under TECH, but couldnt find anything, maybe i didn’t look hard enough. Can anyone point me in the right direction?

im pretty sure the precision website has a calculator.

what are you looking to do maybe we can suggest someting

www.raceeng.com

all motor ls/vtec running around 210-220hp. thanks for the help, ill try those.

http://www.deatschwerks.com/catalog/fuel_calculators.php

220 whp? I would go with 370s this way you still have some room if you decide you want more power.

http://www.rceng.com/technical.aspx

I’d go with 440s personally. They are still small enough to make for an easy tune for idle, you will then have a decent amount of room to upgrade/change build. Also, you will have an easier time reselling if you ever decide you want to get rid of them.

exactly what i was looking for. thanks!

try to find the bsfc for your engine.

and how would i do such a thing?

I’d guess google, or hondatech.

wow, the b.s.f.c. actually makes a fairly significant difference. a 40c.c. difference from .45 to .50.

Which is why I said that… don’t just assume the numbers.

I’m guessing you’re working on a honda? If so… I’m sure its covered somewhere.

yea im in the process of doing all the formulas and conversions. and i didnt see anything on google. im guessing because its not a factory honda motor…its an ls/vtec.

dsm 450s are only 50 bucks…