help w/ fuel injectors
11-01-2007, 09:35 AM
#1
TECH Resident
Thread Starter
iTrader: (23)
Join Date: Jul 2005
Location: memphis, tennessee
Posts: 806
Likes: 0
Received 0 Likes
on
0 Posts
help w/ fuel injectors im fixing to have to buy new fuel inj since im doing a head/ cam swap
should put me in the 430 - 450 rwhp range, i know i need to upgrade my fuel pump as well, thats easy. i need to know what injectors size i need.
i used the sticky and based lined it at:
bhp= 525
( figured that might be close )
8 injs
47 psi fuel pressure
and came up w/ 39.46
so rd up to the 42 pd injs would be my guess
please help if my maths off here somewhere i tried my best n used the searches and stickys
should put me in the 430 - 450 rwhp range, i know i need to upgrade my fuel pump as well, thats easy. i need to know what injectors size i need.
i used the sticky and based lined it at:
bhp= 525
( figured that might be close )
8 injs
47 psi fuel pressure
and came up w/ 39.46
so rd up to the 42 pd injs would be my guess
please help if my maths off here somewhere i tried my best n used the searches and stickys
11-01-2007, 01:07 PM
#3
TECH Resident
Thread Starter
iTrader: (23)
Join Date: Jul 2005
Location: memphis, tennessee
Posts: 806
Likes: 0
Received 0 Likes
on
0 Posts
tx n8
i was looking at the 42pd inj harris is selling new for like 275$ shipped
i see svo red tops which i know are good going for like 175- 200 used that are the 30# which if memory serves act like 36# on our systems
i was looking at the 42pd inj harris is selling new for like 275$ shipped
i see svo red tops which i know are good going for like 175- 200 used that are the 30# which if memory serves act like 36# on our systems
11-02-2007, 08:52 AM
#4
TECH Resident
Thread Starter
iTrader: (23)
Join Date: Jul 2005
Location: memphis, tennessee
Posts: 806
Likes: 0
Received 0 Likes
on
0 Posts
does anyone know if that last statement i made is correct
svo red tops that are 30# act like 36# on our systems and should be enuff for my application?
svo red tops that are 30# act like 36# on our systems and should be enuff for my application?
11-03-2007, 03:45 PM
#6
Go with the Racetronix/Delphi/Lucas 42# injectors and be done with it. The worst thing you can do is to get just enough injector, and then need larger ones when you make other changes. You can tune a larger injector down to work just fine, and the difference in price should not be that important when making the initial purchase. Do it right the first time, and do it once.
