444cc Injectors Enough?
-
Silent Drifter
- Posts: 1357
- Joined: Mon Jun 09, 2003 10:11 am
- Car: '93 Nissan hatch
'90 Nissan coupe
'96 Ford Ranger
Looking for a bike!
-
:: orion ::
- Posts: 1483
- Joined: Fri May 23, 2003 4:40 pm
- Car: '96 240SX, with KA-T @ 12psi...
- Contact:
Let's see:
(# of injectors X duty cycle X cc/10.5) / BSFC
So four 444cc injectors at 90%...and a seemingly low BSFC of .50(but it's been proven that 370s at 100% have done ~250rwhp, which is_low_ .47 BSFC - We'll use .50 to be safe)
(4 X .90 X 42.3) / .50 = 305 crank HP, which is ~250rwhp.
Basically the same limit as 370s at 100% duty cycle.
So plug the 444s at 100% =
(4 X 1.0 X 42.3) / .50 = 338rwhp, or 287rwhp.
Use the crazy BSFC of .47 and 100% and we get 360crank, or 306rwhp...so maybe it's possible.
Later - Brian
(# of injectors X duty cycle X cc/10.5) / BSFC
So four 444cc injectors at 90%...and a seemingly low BSFC of .50(but it's been proven that 370s at 100% have done ~250rwhp, which is_low_ .47 BSFC - We'll use .50 to be safe)
(4 X .90 X 42.3) / .50 = 305 crank HP, which is ~250rwhp.
Basically the same limit as 370s at 100% duty cycle.
So plug the 444s at 100% =
(4 X 1.0 X 42.3) / .50 = 338rwhp, or 287rwhp.
Use the crazy BSFC of .47 and 100% and we get 360crank, or 306rwhp...so maybe it's possible.
Later - Brian
-
SingleCamSam
- Posts: 498
- Joined: Sun May 11, 2003 4:37 pm
