nitrous stall

hey guys i'm new to this site and I need a little help on what nitrous stall I need? I have a 93 coupe with a 460 .30 over with a C-6 tranny.... 3.73 gears and the most I would be spraying would be a 200 shot but most of the time 150.. I really don't know much about the motor because I bought from a older women who's husband past away. Any help or suggestions would be great thanks.

List the specific details of the engine combination and what altitude you are at, and whether it's race-only with the spray all the time or not.

I live in the mountains in nc and it's only a track car no street.. the motor i'm not sure but the paper said it has dome pistons and dove heads im not sure about the cam but it could use a little more I think

put some retracked tip plugs in it around a ngk9 and put the timing around 28, 100 + fuel and make sure u have enough fuel volumn good pump and hit it with 150hp and tune from there read the plugs

Cam specs will greatly help. What has the car run thus far? RPM range you want to run in?

That's my problem.. not sure what the cam specs are or what cam is in the car.. the car has run a best 7.76 in 1/8 mile and with the stall that's in it now i can only leave at 1800 rpms! I have turned the rpm up to 6000 that's as high as I have had it

I would like to leave the line at about 2800-3200 rpms

What kind of mph did you run? That may shed some light on the power it makes... so I can at least get close with a recommendation for stall speed/etc for you.

coupe460 wrote:I would like to leave the line at about 2800-3200 rpms

It may be flashing there as it is, its impossible to measure flash stall speed w a footbrake.............on the hose.

7.76@96mph

any help would be great?

what tire size? trap rpm? shift rpm? rpm drop on the shift? 60" and 330" increments? car weight?

26/10.5/15 and the trap rpm is 6000 if I remember right 60ft was a 1.7 I know I'm not giving much info but I've only been in the car three times so I'm not real sure about things

so are the times n/a or with the hose?

with the hose... it only runs 8.10@86mph on motor

what altitude is the track?, and car weight w driver?

I'm above sea level lol i'm not sure what it is exactly sure.... it probably weighs 4000lbs with me in it

Looking at the et/mph numbers you have provided leads me to think you may be able to run a tight 8" converter and still have reasonable stall speed. The trick IMO is to run the smallest diameter core for a converter that still allows proper torque multiplication, stall speed, and efficiency. The problem I usually have is folks wanting to spray it now and then instead of all the time. You simply can't build a converter that's dead-on for those folks. It'll give up performance unless it's built for the exact need.

coupe460 wrote:7.76@96mph

r u leaving with the hose or delay hit. does it blow the tires off on hose.what r 60' on motor and on hose. with 150hp hit it should pick up more then 3 tens. it pick up good mph 7mph. what is the size of your converter now 10" 11" 12"

Those numbers are on a 100 shot and its on a deley with the current stall I can only hold it up to 1800 any higher and it pulls through! The 60ft doesn't change to much cause I can't leave at a higher rpm

I wanna spray a 150 shot is my goal right now

And I will be spraying it all the time

I wouldn't worry what you can stall it with a foot brake.........I can only hold mine to 2500 or so but it flashes to 6500...................I'd put the bigger shot in it and take the delay out..............if the tire will hold it. I dont think your converter is all the problems.

So you think it will flash up to at least 3000rpms I don't think I should spray it below that or should I?

richter69 wrote:I wouldn't worry what you can stall it with a foot brake.........I can only hold mine to 2500 or so but it flashes to 6500...................I'd put the bigger shot in it and take the delay out..............if the tire will hold it. I dont think your converter is all the problems.

x2 mine only footbrakes to 2200 and its a 4000 dont worry about 3000 before u spray put a wot switch on and leave on that. i leave with mine at 1800 on spray with wot switch put the 150hp hit in 26 to 28 timing 65n 52 f jets 5.5 fp 100+ gas. my setup is a dual shot buy nos 50hp with wot switch and 150hp .9 sec. delay with a digi-set my tires dont hold on launch with 150hp thats why i use 50hp on launch