I'm debating on to do some experimenting with NOS on my E85 burning S/P car this year if it doesn't sell soon.
I have never used NOS but I have bought kits and parts for kits over the years, now is probably the best time to start learning about it
Is there a formula for the jet sizes on both the NOS and fuel jets to make a set amount of HP gain?
How about using it with E85? Any things to not do with E85?
My current 505 C.I. E 85 bracket motor is right at 15.to to 1 compression ratio, is that too high?
I've got several new BB race blocks, B1 heads and several different BB stroker cranks available to build a bigger newer NOS motor. I'm not sure if I should do that or work on the motor that is in the car
The motor in the car now has run a best of 8.882 at 150.+? MPH in the 1/4 mile. 5.50 at 125.+ MPH in the 1/8 mile weighing 2850 Lbs. with me in it at 3300 Ft D.A.
I'm thinking of using two NOS systems I have already, the smaller solenoids one to make 150 HP and the larger one to make between 300 and 450 HP. I'll need a good NOS controller so I can make the car move before engaging the 150 HP kit and then a little later activate the larger kit.
I know there is a lot to learn on NOS use so I really appreciate all and any help you can offer me, THANKS in advance

Cab , I can’t tell you about E85 never used it .
15:1 is not a problem
Your biggest issue will be using B1 heads . They are not nitrous friendly . That means you need more retard than usual .
Also if using more than 3-400 you should consider a nitrous type cam . Something that will open the exh earlier to help get rid of the heat .
Next is consider a nitrous type converter because you will most likely blow through the “motor” converter you have now .
Also you will need less rear gear .
Finally you are better off to use a good nitrous controller with one big 600hp kit than dual stage like you want .
Lots to consider ……
I always tell people, get in touch with induction solutions. Sounds like a Holey Moley plate is exactly what you need . You will get great tech support

A friend of mine runs a 632 BBC in an outlaw drag radial Mustang, it is a no time car currently but runs sub 4.50's in the 8th. He goes through 5-6 pounds of nitrous depending on the pass and the tuneup. I think the general rule is 0.8 lbs/100 hp, but a ton of factors can play into that.

Cab Good Luck on finding a jet spread for e-85, i remember when Monte was on here i ask about the jet spread for e-85 and couldn't get a concert answer. But he did say most of the jet spreads were fat on the Nos recommendation. i had these jet spread saved in my files from NX not sure what solenoids you are using tho.


https://www.nitrousexpress.com/images/assassin_jetting.pdf

Thanks for the help
I'm in the middle of building two pump gas street motors for two local customer and waiting on parts so my mind gets my ambition churning , SHAME ON ME
The chambers on my B1 heads are 73.4 and 73.2 CC so they have not been cut as much as the smaller CC B1 heads have, I'll look at the chambers when I start buying parts (pistons, rings cam and some other small parts for this deal) and go from there

Cab:you need to talk to Mark Sullens. Birdtracker

That name, Mark Sullens, ring a bell but I don't know how to contact him

Birdtracker....do you spray with e-85?

Can't tell you 1/8, but 1/4 mile but we use 5.4 lbs @ 250 shot for 2 passes.

Cab: I built this last motor to run on E-85 and sprayable. I have encountered 2 problems that have kept me from making a hard pass with it just on motor. I have a complete system waiting in the wings. Good luck with your builds. Birdtracker

I tried using that link and got nowhere with it
Any chance of anyone having a phone number or better link to reach him
Thanks in advance Cab

Cab: call him in the evening , around 6:00 pm your time. Birdtracker

Mine seems to use around 2 lbs for one 1/8 mile pass at the 300 hp jetting.
I make 2 hits then put in a fresh bottle.

Did that Thanks a Bunch

I'm planning on using two 15 lbs. bottles, one to feed a 150HP shot system for around 4 seconds and the other for the bigger 300 to 400 HP kit for 2 to 4 seconds depending on how much I need to compete and win: luck:
I don't know how long it will take to use enough NOS out of the large kit bottle to replace it I'll probably take the scale to the races and measure them to find out
I have a lot to learn

Good for you Cab! Get back in the mix running the car in some heads-up stuff. Lots of good advice so far, definitely out of my wheelhouse. At that level of NOX you might want the chambers softened, especially if you decide to use B1's. Port foggers are probably the safest for fuel distribution if that's an option.

you only need one 15lb bottle for all that. And use a -8 line to feed it all.
As i already mentioned consider one big kit and a good controller over two kits.
Most important thing also ..... get the chambers softened and dont be afraid of single digit timing ( 9* or less)