Injector-HP list

[meet07]

Im sure its around somewhere but I was wondering if someone could direct me to a injector(cc) /hp list.

 

[OneJoeZee]

What is an injector hp list?

 

[rakkasan]

What is an injector hp list?

It's a honda thing, you wouldn't understand....

 

[88supraTT]

i go by 1cc per hp

450cc good to 450hp

thats what im going off of

 

[Supracentral]

Everything you ever wanted to know about injector sizing:

http://www.supramania.com/forums/showpost.php?p=179880&postcount=7

 

[meet07]

must be a honda thing?? I was thinking that everyone either knew the ratings or need to know.

Thanx SupraCentral

 

[supraguru05]

i made a excel sheet based on supracentrals injector recommendations enjoy

 

[Supracentral]

i made a excel sheet based on supracentrals injector recommendations enjoy

virtual +1 for you. I always mean to do that and never got around to it.

 

[viperkillertt]

i made a excel sheet based on supracentrals injector recommendations enjoy

Umm, that is close, but it looks to be a bit off. I have done the calculations in class and i have to study injector sizing for my final on Tuesday, so i will go over the excel and correct it when i find some time this weekend. All of the right stuff is in the excel, just the numbers seem a bit low. I remember i did my car with a 330 power goal and it was just about 370 cc injectors.

 

[viperkillertt]

Umm, that is close, but it looks to be a bit off. I have done the calculations in class and i have to study injector sizing for my final on tuesday, so i will go over the excell and correct it when i find some time this weekend. All of the right stuff is in the excel, just the numbers seem a bit low. I remember i did my car with a 330 power goal and it was just about 370 cc injectors.

well, i grabbed my calculations, and the only real difference is that the rule of thumb for a moderately boosted engine is a BSFC of .57. But that was the only difference. No big difference. I changed it and it matched my calculations perfectly. I actually even found one error in my calcs. The excel is done great! Good job!

 

[Supracentral]

If you read my original post, I stated:

... these are all "theoretical" calculations used for fuel system design. I know you can find 101 cases where someone will tell you "well I made more than that" - these are the calculations with built in safety margins that I'm comfortable with when doing motor design.

I use .60 for a boosted, fuel injected car.

 

[Dylan JZ]

Umm, that is close, but it looks to be a bit off. I have done the calculations in class and i have to study injector sizing for my final on Tuesday, so i will go over the excel and correct it when i find some time this weekend. All of the right stuff is in the excel, just the numbers seem a bit low. I remember i did my car with a 330 power goal and it was just about 370 cc injectors.

yeah quite a few people have told me I'd be fine with my stock 370's up to that level without maxed duty, so thats why the speadsheet confused me a bit.. it recommended 440's unless im not understanding something here.

then again im using a weird spreadsheet program so maybe it read wrong (shrug)..

 

[OneJoeZee]

How much hp certain injectors can support and how much hp is recommended to run on certain injectors are two different things.

 

[Dylan JZ]

How much hp certain injectors can support and how much hp is recommended to run on certain injectors are two different things.

I understand that, but.. you're the one that said I'd be fine into that level on the 370's IIRC and I doubt you'd recommend over 80% duty cycle.



EDIT: Now I see what you were saying, well I'll just disregard recommendations..