Safest way to run 200 shot on stock internals?
 

i know this has been discussed alot and i would search if the search was working properly but it dont..so i want to run a 200 shot on my car..car details are in sig..i have been sprayin a 100 shot and recently switched to the 150..its a tnt f-1 kit..so if i have 100 octane, pull timing way back and a fat a/f ratio do you think i could get away with a 200 shot? also i have a holley 255 pump and 37#injectors..right now its just a on/off kit..would a progressive controller or dual stage be a good idea? or can i make it with what i got now? also i dont use the nitrous everyday, i use it sparingly..so what do yall think?

I am thinking about the same thing i picked up a progressive controler from HSW and im also swiching from single nozzle to Directport to be on the safe side.

A TNT 200 hits pretty damn hard. I think your set up will last alot longer if you break it up into two stages or go with a progressive controller. It would be a real good idea to add a hotwire kit to the fuel pump if you havn't already. Before my cam I was ok with just a Walbro for a TNT 200, but after the MS3 I was loosing 10-12psi off the line and not recovering with a 225 shot (at the crank). With the addition of a Hotwire kit and Voltage Blaster the car is now ok.

Are you still running a 10 bolt!?

I think he's still running on 10bolt/2.73. :)

Hawk

Naw. Just shoot 200 shot off the line :devil: Just a "few" bolt on's, but great suspension, stock shortblock, got me my best ever of a 10.08, 132+ with a 1.3 60' time.

If you don't have the suspension, rear-end and tires, a 200 shot may be a little much. It took me a while to get things tuned in.

David

I would not do a 200 shot into the TB. If you wanted to run a 200 shot do a direct port. Its safer and you wont have to worry about puddling. IMO

I have put over 200lbs of Nitrous through a stock bottom end LQ9@200. Single nozzle NX wet.It can be done but will eventually break.Our goal was to see how long it would take and how crazy we could get.

I eventually got a decent tune set-up for the 200 non-progressive on pump gas. Then we got silly and jumped to 250 and it shattered a piston. From the looks of things it wouldn't have taken much more from the 200 either.

It can be done for a good long time though. :)

BTW: a fat A/F is NOT GOOD. Tune the engine for max power THEN tune your Nitrous. Yes you will need to deviate from spec'ed jetting most of the time.Watch TNT 's jetting call-outs they are different from the rest of the companies. They tend to use slightly bigger jets therefore providing you with more nitrous at a given power level.That's the BEST advice I can give you.

I had the Truck tuned for a real 12.4 a/f and that's where it ran best .Obviously you'll need something slightly different as you have a different vehicle.

dual stage if it is dry so the tq spike does not kill the motor

I would just get the progressive unit and set it so the 200 comes in nice an easy and it tops out at 200 in the higher RPM when the cylinder pressure is lower.

Where can i buy a hotwire kit and booster? thanks!

A few sponsors carry Racetronix stuff

Yep, stock tranny too.


I got my hotwire kit and voltage blaster from Speed Inc. They where made by Casper electronics.

I could not agree more!

IMO the safest way to run a 200 shot on stock bottom end is to run a dedicated fuel system for the nitrous and use C16 race fuel when using the nitrous. You'll also want to run a very cold race plug like an AR472 when spraying.

Don't spray when the engine is heat soaked, and don't spray in overdrive.

I've been spraying my motor with a 200 dry shot coming in at 3200. I just bought a FJO controller just to give the maf a chance to see the shot better and so it would be a little easier on my custom motor.