Injector size for 427?
Thread Starter
Instructor
Joined: Nov 2003
Posts: 214
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From: west hills ca
Injector size for 427?
My 427N/A has 42# injectors with 60 fuel pressure. I am beginning to
suspect the injectors are too big as we are having difficulty tuning a fuel richness problem. Any input as to proper injector size would be appreciated.
suspect the injectors are too big as we are having difficulty tuning a fuel richness problem. Any input as to proper injector size would be appreciated.
NCM, WSCC &amp;amp; SCC Member
Joined: Oct 2002
Posts: 2,900
Likes: 1
### uses 36 Delcos with a 255 Walbro.
###### uses 30-36 Bluprinted SVO's.
I have 36's Delco's with a 255 Walbro.
They above two, have put hundreds of big motors on the road. I will let them coment if they wish too.
Interesting subject. I am looking forward to reading this thread. N/A requires about 20% less than F/I for the same peak power.
###### uses 30-36 Bluprinted SVO's.
I have 36's Delco's with a 255 Walbro.
They above two, have put hundreds of big motors on the road. I will let them coment if they wish too.
Interesting subject. I am looking forward to reading this thread. N/A requires about 20% less than F/I for the same peak power.
Racer
Joined: May 2004
Posts: 290
Likes: 0
From: LV NV
are you sure your ifr table is correct.... I've got some 42lbers on a basically stock engine just because for future mods I'll have the big injectors allready, I've accually got a little bit smoother idle and a tad bit more response.... I'm useing hptuners... what are you tuneing with and are you sure your new calculations are correct??
Racer
Joined: Sep 2000
Posts: 487
Likes: 0
From: Below the Mason/Dixon Line Alabama
Originally Posted by monstermouse
My 427N/A has 42# injectors with 60 fuel pressure. I am beginning to
suspect the injectors are too big as we are having difficulty tuning a fuel richness problem. Any input as to proper injector size would be appreciated.
suspect the injectors are too big as we are having difficulty tuning a fuel richness problem. Any input as to proper injector size would be appreciated.
