Fmandan

Lets say a stock Formula 350 runs a 14.60 @ 97mph stock. With no other mods and the same 60 foot time what will the 125hp shot do for the E.T and MPH?

I'm wanting to hear personal experiences only.

I can guess a 13.30-13.50 @ 105-106mph but thats only a guess. What have you guys experienced?

Thanks, Dan

brutalform

I would say that you are in the ballpark. Stock engines really pick up more than the modified engines. I have friends that went 13.00s N/A, and, went 11.70s on the squeeze, with a 150 shot though.

Orr89RocZ

iTrader: (20)

theoretically, your making like 240hp stock or so. 125 shot puts you at 365hp on crank. or about 310-320 at the wheels, similar to mild LS1 car. which can crack high 12's on good tires. thirdgens are abit lighter so you should be able to trap 108ish and hit high 12's on good tires

TragicPark

I ran a 14.9 at 89mph on the motor. With a 100 shot I ran 13.8 at 99mph. The best it should be running is 13.6ish so a 13.8 is pretty darn close. Due to the DA being so high, my corrected times were a 13.2. My dad in his 77 vette went 14.0 on the motor and 12.7 on a 100 shot. So if take off about a 1.3-1.6 seconds and that's what you might get. I bet you'll pull a high 12. Go run it and tell us what happens!!

Rick King

Under no cercumstance would I put more that a 100 shot of nos into a stock motor and inspect it to be reliable--If you do please make it so your car dumps more fuel into the motor, larger jets on a carb, larger injectors on fuel injection -with a bigger adiquate fuel pump and supply line, also look into a chip for the nos to retard your timing so you do not have a big bomb--and use cooler sparkplugs

just my rant and ravwe

take it or leave it

laterr

rick

305TA85

I think I'm about at a 14.5 second quarter mile. Without nitrous and I am putting a 150 wet shot this weekend. If I run it I'll give the results. Im hoping 13.5's or better.
I also have a few more tricks.

305TA85

nitrous is a lot nicer to a car than you might think. A stock engine that isn't worn and beat on terribly will hold up for as many squirts as you feel like upto 150 shot. This may start flames, but I'll hold to my oppinions.

Fmandan

Its all about the air fuel ratio. If the engine does not lean out during the nitrous pass the engine will hold up just fine.

An insider from KB pistons once told me they have ran 400hp nitrous shots on hyperutetic pistons with no problems. I'm sure at that level cylinder pressure is getting high, but it just goes to show if you add enough fuel to keep the air fuel ratio under control your engine will hold together. --Dan

brutalform

[B]

The people that have problems with nitrous, are the ones that try to hit a huge shot on a stock engine, without at least adding a better fuel pump, better fuel, spark retard. Then they try to blame the nitrous company for their problems when they happen. I agree with your statement.

brutalform

[B]

Nitrous systems are programmed rich by the manufacturer. This is a safety feature for inexperienced tuners. Nitrous wants to be "safely" leaned out, as not to detonate. When you get overly rich with a nitrous system, you can run into problems in a hurry.The fuel will not compress, and you will have an engine failure. The idea is to lean the mixture to get all the power you can from the charge.

Floorguys vette, has ran in the 10s with KB hyper pistons. Its all in the tune. He leans his system out, so he gets every bit of power from his fuel. If he were rich, that fuel would blow out the exhaust pipe.

vejatabul

i ran 13.77@98 on street tires and on a 75whp shot i went a 12.40@109. this was a gta that weighed 3665lbs. i ran the system pretty lean, 12.8 a/f on the dyno. i made 307whp and 430wtq. i ran ur5 plugs gapped at .032 and 6 degrees retard(from the 12 degrees i ran on motor). this was a stock internal l98, with an air foil, afpr, flowmaster muffler, smog delete, a/c delete, nitto drag radials, msd coil and wires, and a rigged cold air intake w/ a k@n filter. everything else was stock.

Fmandan

Wow a second and a half and 9 mph from a 75 hp shot?

--Obviously you recieved a lot more than a 75 hp gain.

Also you N/A e.t. is very odd as well--13.7@98 with street tires? I would expect 101-102mph on street tires if your running a 13.7. You must really know how to get off the line hard with your street tires.

--Dan

vejatabul

1.75 60 foot on nitto dr's. it made 229whp on motor and 307whp on nitrous = 78whp with nitrous. stock suspension(boxed factory lca's w/ poly bushings) and stock converter. so i guess it is pretty obvious that i had a 75hp shot, plus 3hp. so correction, 78hp shot. im not saying that this is repeatable by any other person, but it is posible.

Fmandan

fair enough, great performance!