which injectors are right?
- Thread starter the mooch
- Start date
how can you possibly recommend any injector without knowing what turbo he is running? 12-18psi on a t25 wouldnt even come close to maxing out DSMs, neither would 12-18psi on a t3, 14b, blah blah blah
without knowing the turbo, giving advice is pointless
possibly.
dont base your setup on a psi goal, decide on what hp you want to make and run whatever psi it takes to get you there
whats your hp goal. use that when deciding on parts, not what psi your running. psi dont mean s**t
In order to select the correct size injector for your application, use the following formulas.
In most cases a naturally aspirated engine will have a B.S.F.C of .50. This means that the engine will use .50 lbs. of fuel per hour for each horsepower it produces. Turbocharged engines will want to be at .60 lbs. per hour or higher.
Using these numbers as a guideline, you can select the approximate injector size in the following formula for a four cylinder, naturally aspirated engine at 200 bhp.
Most injectors will max out at 80% duty cycle and this is the accepted industry standard.
B.S.F.C is brake specific fuel consumption - How much fuel you are using per horsepower per hour
In most cases a naturally aspirated engine will have a B.S.F.C of .50. This means that the engine will use .50 lbs. of fuel per hour for each horsepower it produces. Turbocharged engines will want to be at .60 lbs. per hour or higher.
Using these numbers as a guideline, you can select the approximate injector size in the following formula for a four cylinder, naturally aspirated engine at 200 bhp.
Most injectors will max out at 80% duty cycle and this is the accepted industry standard.
B.S.F.C is brake specific fuel consumption - How much fuel you are using per horsepower per hour
thanks neo, you're the nuts...as far as a hp goal, i honestly have no idea. i guess whatever the engine will do. apparently, my motor is going to be more of a beast than i thought. my shop said the head alone is built for around 500hp. i think 500 hp on a dd is a little much. originally i was hoping to be around 300. so far my setup has:
bdl cam gears
crower 402T cams
crower valves/springs/retainers
wiseco pistons (9.0:1)
eagle rods
arp rod bolts
all new bearings and thrust washers (race spec)
sleeved/bored/honed block
skunk2 intake manifold
turbonetics turbo/wastegate (7psi spring)
hks ssq bov
2.5" intercooler piping
spearco intercooler
and probably some other s**t that i'm forgetting. i guess my biggest question is when is it enough. and what thickness head gasket should i get? i didn't know they came in different thicknesses.....i always thought a head gasket was a head gasket.
bdl cam gears
crower 402T cams
crower valves/springs/retainers
wiseco pistons (9.0:1)
eagle rods
arp rod bolts
all new bearings and thrust washers (race spec)
sleeved/bored/honed block
skunk2 intake manifold
turbonetics turbo/wastegate (7psi spring)
hks ssq bov
2.5" intercooler piping
spearco intercooler
and probably some other s**t that i'm forgetting. i guess my biggest question is when is it enough. and what thickness head gasket should i get? i didn't know they came in different thicknesses.....i always thought a head gasket was a head gasket.
what block is this?
phearable.net has a nice little injector size/ hp chart in there technical info section to help you decide which injectors are best.
Dude with that build you could run 400hp DD with a good tune NP. Sleeved FTW. I'm actually going to be running a manual dual stage boost controller low setting shooting for 370hp high setting about 470hp. Go with an OEM Honda Headgasket.
will an oem head gasket be able to withstand a build like this or would it be better to go with a cometic or hks head gasket? thanks for the props on the build. alls i have left to get is a tranny and a decent shell. finding an ls tranny in cincinnati is tough though. i had a buy setup last week but the dude sold it to someone else before i got there....after i called and told him i was on my way. sucks, but oh well. any tranny reccomendations? what else will work with an ls motor besides an ls tranny?
it's a '94 b18b1. i know a GSR trans is pretty coveted due to the ratios, but it's gonna be seeing alot of highway. i've been trying to source an ls trans, but so far no dice. i heard through the grapevine that a civic si tranny will work, but i don't know the years. i just know i need a hydraulic tranny. what else will work?