What do you guys think??

I have a BBF around 9:8:1 compression and looking to see what you guys think what kind of timing would need to be pulled when spraying? Also, with this compression what at the minimum on octane would you run when spraying this compression ratio? I personally feel 110 may be a bit too much, but chime in and tell me your opinions. My ears are open. I'm looking to spray around 150-225 shot.

i forgot your build ...can you please post some details

504 bbf, dished pistons, 9:8:1 comp, 1000cfm 4150, victor/C9VE heads, 240ish duration/650 lift solid roller cam

I don't think 110 octane is to much.. I feel octane is your friend with nitrous.. Also what plug are you going to run ?? SJ

I run the autolight plugs

1Bad91 wrote:I run the autolight plugs

what heat range is what Steve means

Heat range? You mean what exact plug I'm using? I'm confused...lol

1Bad91 wrote:Heat range? You mean what exact plug I'm using? I'm confused...lol

Yes!! Whats the # on the plug

x2 yes

res0rli9 wrote:

1Bad91 wrote:Heat range? You mean what exact plug I'm using? I'm confused...lol

Yes!! Whats the # on the plug

AUTOLIGHT 124!!! These are about the only autolight plugs you can use on spray. Unless there is a colder plug by this brand that I dont know about that fits casts heads.

The 124 is a heat range 4 plug and in my opinion is a little hot for what your wanting.. Thanks, SJ

1Bad91 wrote:

res0rli9 wrote:

1Bad91 wrote:Heat range? You mean what exact plug I'm using? I'm confused...lol

Yes!! Whats the # on the plug

AUTOLIGHT 124!!! These are about the only autolight plugs you can use on spray. Unless there is a colder plug by this brand that I dont know about that fits casts heads.

Maybe Autolite ar33 or ar32? the 32's are the coldest of those two.

You must have D0VE heads. I use autolite 124s in my D0VE headed combo also. There isnt alot available for that head without inserts, and thats about as cold as your going to get. I have sprayed a 110 squared with no problems with them so you should be fine.

whatbumper wrote:

1Bad91 wrote:

res0rli9 wrote:

1Bad91 wrote:Heat range? You mean what exact plug I'm using? I'm confused...lol

Yes!! Whats the # on the plug

AUTOLIGHT 124!!! These are about the only autolight plugs you can use on spray. Unless there is a colder plug by this brand that I dont know about that fits casts heads.

Maybe Autolite ar33 or ar32? the 32's are the coldest of those two.

He cant use those without adapters.

So the 124's are the coldest plug i could use, unless I went with an adapter? What would be the advantages going with a colder plug?

1Bad91 wrote:So the 124's are the coldest plug i could use, unless I went with an adapter? What would be the advantages going with a colder plug?

You can use the standard AR plugs I.E AR33/AR32.

1Bad91 wrote:So the 124's are the coldest plug i could use, unless I went with an adapter? What would be the advantages going with a colder plug?

124
18mm Thread Size, 11.6mm (.460") Reach, 13/16" (20.6mm) Hex Size, Tapered Seat, Resistor, Copper Core, Heavy Duty Center Electrode, Solid Terminal Nut, .031" (0.8mm) Gap, Heat Range 4

AR33
18mm Thread Size, 11.6mm (.460") Reach, 13/16" (20.6mm) Hex Size, Tapered Seat, Non-Resistor, Power Tip, Copper Core, Racing Plug with Nickel Plated Shell, Solid Terminal Nut, .028" (0.7mm) Gap, Heat Range 3

AR32
18mm Thread Size, 11.6mm (.460") Reach, 13/16" (20.6mm) Hex Size, Tapered Seat, Non-Resistor, Power Tip, Copper Core, Racing Plug with Nickel Plated Shell, Solid Terminal Nut, .028" (0.7mm) Gap, Heat Range 2

I don't use any of these but why is an adaptor needed? Am I missing something here?

I use the 124's and never knew about an adapter or those other plugs. WhatBumper, what are you confused about? I should be more confused than you....lol

but your information above is greatly appreciated. I did not know about them plugs. SHould I be running them plugs instead of the 124's, or would it not make any difference? I'm new to this NO2 stuff and looking for all the knowledge possible. I like to know all the pros and cons because NO2 is probably what I will always be running for pwr adder. Everybody helping is awesome. Thanks a bunch.

I dont know where that info came from, but I dont think those plugs will not work in your cylinder head without adapters. Autolite lists them as a 13/16hex, but I think I ordered them a long time ago for my D0VE headed motor and they were standard 5/8 hex similar to the 3932. I could be wrong though.

Barney wrote:I dont know where that info came from, but I dont think those plugs will not work in your cylinder head without adapters. Autolite lists them as a 13/16hex, but I think I ordered them a long time ago for my D0VE headed motor and they were standard 5/8 hex similar to the 3932. I could be wrong though.

that was from www.autolitesparkplugs.com website. that's why I asked what the difference was. I use and sell ngk so i am not that familiar with the autolites anymore.

I myself think the 124s are fine for the HP levels your spraying. Like I said earlier Ive sprayed 110 squared with 124s and D0VE heads and never had ANY issues.

when you say 110 squared your talking 55N and 55F? What kind of shot is that?

1Bad91 wrote:when you say 110 squared your talking 55N and 55F? What kind of shot is that?

he probably means 110's on each.

1Bad91 wrote:when you say 110 squared your talking 55N and 55F? What kind of shot is that?

Its around 350HP on my car 110n/110f.