24's or 30's?

[Mr.Slave]

I want to get a little more input on if I need 30's or not. Right now I have 24's, but as I get closer to completion, I think I might need 30's. Heres what I have: 306 with roughly 10.1 to 1. Twisted wedge heads, custom grind .553 int .525 exh (I forget exact duration @.050 and I don't have the sheet in front of me but I think it was 224 int and 228 exh) GT-40 intake with lower port matched to my heads, 1.6 rockers, CAI, 70mm TB, soon to be Pmas MAF, 255lph pump, Adj fuel reg, and I do have a plate kit I'll be spraying roughly a 150 shot, but its a wet kit.

Just want to see what you guys think before I get the MAF.

[banditmwp]

If I had it to do again, I would do 24's with my setup.....






actually I wouldn't since the 30's were free :banana:

[QWKSNKE]

24's should be fine

[Italian LX]

24's should be fine
+1

30's are overkill on any N/A 306 and they kill your idle quality.

[banditmwp]

...they kill your idle quality.

I disagree. No idle problems here.

[04 Mach1]

24's are plenty for a 306.

Matt your just lucky or your tuner is the shit. The 331 had serious problems hunting for an idle.

[banditmwp]

Matt your just lucky or your tuner is the shit. The 331 had serious problems hunting for an idle.

now that you mention it, it did idle a little better after I replaced the distributor and reset the base timing. :jester: still running that wideband tune cause i'm broke.

[Italian LX]

I disagree. No idle problems here.
Typically, it will run a bit rich because the pulse widths can't go small enough with these low impedance injectors. It may be idling smoothly, but it likely is running richer than it should.

[banditmwp]

That I will agree with. I will likely buy some 24's and a tunable MAF when I get a tweecer.

[Mr.Slave]

In that case, I'll keep the 24's for sure. They've been sitting dry for over a year now and I got them used to begin with, any reccommendations of a good place to send them for a rebuild?

[Italian LX]

In that case, I'll keep the 24's for sure. They've been sitting dry for over a year now and I got them used to begin with, any reccommendations of a good place to send them for a rebuild?
Ryan's website has a good page on how to clean them yourself.

http://fordfuelinjection.com/?p=82

:nice:

[EHardy1971]

now that you mention it, it did idle a little better after I replaced the distributor and reset the base timing.
And hooked the vaccum line back up to the FPR.:D

[Mr.Slave]

Ryan's website has a good page on how to clean them yourself.

http://fordfuelinjection.com/?p=82

:nice:

I actually have that saved in my favorites and was going to try to do this myself at one point.. where can I find the filters caps ect..?

[qkjuicedpony]

I had 30's on my Stock Longblock last year.It did have an E cam and a C4 trans and it idled just like normal.

But it was a hair on the rich side.

[Dale McPeters]

30's working ok for me and idle's just fine..... I did the tuning with an ostrich 2.0 and FJO WB. :p

This is on Lee F.'s........... oops Dale's '93 cobra mustang with 306...:D

By the way it does have cats on it and they do not glow red. :lol:

[QWKSNKE]

30's working ok for me and idle's just fine..... I did the tuning with an ostrich 2.0 and FJO WB. :p

This is on Lee F.'s........... oops Dale's '93 cobra mustang with 306...:D

By the way it does have cats on it and they do not glow red. :lol:

yeah I was going to mention that the 30's in the cobra never gave me a problem other than shitty mpg. Best I ever managed with that setup was 20 mpg

[banditmwp]

yeah I was going to mention that the 30's in the cobra never gave me a problem other than shitty mpg. Best I ever managed with that setup was 20 mpg

I hit 22 on a 174 mile trip combo city/highway in mine last week