How does it run on motor? How much dope you gonna put through it?
Finally got my N2O system installed
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From: Olive Branch MS
Finally got my N2O system installed
I installed a seconday fuel system (1 gal. fuel cell, fuel pump, and regulator) and the Zex Blackout Dual Quad nitrous kit. I also installed a purge kit, bottle heater, and blow down kit, with the bottle. I will let the fuel injection's window switch and WOT TPS settings control the turn on for it once it is armed. I think I'm going to put the car on the chassis dyno for some short pulls to see how the A/F and plugs look at first.
I've never ran N20 so this should be a fun learning experience. I have talked to numerous racers and read everything I could find on it so hopefully all will be fine. If anyone has any suggestions or questions feel free.
I've never ran N20 so this should be a fun learning experience. I have talked to numerous racers and read everything I could find on it so hopefully all will be fine. If anyone has any suggestions or questions feel free.
Race Director
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From: Corsicana, Tx
2020 C2 of the Year - Modified Winner
2020 Corvette of the Year (performance mods)
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That looks sweet! I'm sure you have some good contacts...but if you run up on anything check with 69NoxRat here on the forum. John has a very good handle on spraying lots of N20 and not hurting anything!
Sorry I missed you at PRI!!
JIM
Sorry I missed you at PRI!!
JIM
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From: Olive Branch MS
I definitely want to talk with him. I've read alot of his posts and I can tell he agrees with the guys I talk with that run nitrous competitively. It's a little different than the guys who say they've run nitrous before.
I am probably going to stick to the heads up class I raced last year, since I can do it on motor and pump gas. It will be alot cheaper/easier on parts and then I can just do some test and tunes and play with the nitrous.
Jim, I always forget how crazy PRI ends up being. I don't know what happened this year, but it took me both days to get through everything. That's the first time for that.
I am probably going to stick to the heads up class I raced last year, since I can do it on motor and pump gas. It will be alot cheaper/easier on parts and then I can just do some test and tunes and play with the nitrous.
Jim, I always forget how crazy PRI ends up being. I don't know what happened this year, but it took me both days to get through everything. That's the first time for that.
Race Director
Joined: Jan 2000
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From: Corsicana, Tx
2020 C2 of the Year - Modified Winner
2020 Corvette of the Year (performance mods)
C2 of Year Winner (performance mods) 2019
2017 C2 of Year Finalist
Give John a call...he is connected with some very prominent N20 mfg's.
We'll do a better job at PRI next year and plan some BS time. I did get some..just not with you!
JIM
We'll do a better job at PRI next year and plan some BS time. I did get some..just not with you!
JIM
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From: Olive Branch MS
I'll have to do that. I saw his new Corvette run some on YB. It is a cool deal!
This motor runs great. It's a pump gas small block 434. Its very streetable since I have the car set up for the nitrous already. I only have a 3.50 gear and a tight 3500 nitrous converter. I've ran 6.90 1/8th mile with a 1.48 60ft on the drag radials. That's 10.70 or 10.80 in the 1/4. You kind of lose some time N/A when you are set up for nitrous. Hopefully, the converter should flash to 4500 or so on the nitrous which is what the motor was cammed for.
I'm going to be starting off with a 150 shot and see how it acts and what the tune looks like. Also, I don't know how it's going to act suspension wise. I might have to change the 4 link and shock settings to get it to hook up right launching on the N2O.
I think it's going to be a long summer!
Thanks for the comments, guys!
This motor runs great. It's a pump gas small block 434. Its very streetable since I have the car set up for the nitrous already. I only have a 3.50 gear and a tight 3500 nitrous converter. I've ran 6.90 1/8th mile with a 1.48 60ft on the drag radials. That's 10.70 or 10.80 in the 1/4. You kind of lose some time N/A when you are set up for nitrous. Hopefully, the converter should flash to 4500 or so on the nitrous which is what the motor was cammed for.
I'm going to be starting off with a 150 shot and see how it acts and what the tune looks like. Also, I don't know how it's going to act suspension wise. I might have to change the 4 link and shock settings to get it to hook up right launching on the N2O.
I think it's going to be a long summer!
Thanks for the comments, guys!
Le Mans Master
Joined: Sep 2000
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From: DFW TX
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St. Jude Donor '07
The biggest problem you will find is trying to ease the nitrous in. Most the time it will hit and you blow off the tires then hit the rev limiter. Are the reverse it hooks really good and something metal breaks. 150 want kill it, but it's a drug and 150 will lead to 200 and then 250. Your on the right track with a secondary fuel tank.
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From: Olive Branch MS
Well, I'm hoping that I can control that a little with the window switch and delay it until the car is moving some first. I'm sure it will be a challenge. Now breaking things
that's when things will suck. I've built this thing up as solid as I can so far, but I guess I'll find the weak link.
that's when things will suck. I've built this thing up as solid as I can so far, but I guess I'll find the weak link.
Le Mans Master
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From: League City Tx
Well, I'm hoping that I can control that a little with the window switch and delay it until the car is moving some first. I'm sure it will be a challenge. Now breaking things that's when things will suck. I've built this thing up as solid as I can so far, but I guess I'll find the weak link.
that's when things will suck. I've built this thing up as solid as I can so far, but I guess I'll find the weak link.
Burning Brakes
Joined: Apr 2006
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From: Brooklyn New York
Dont worry about breaking anything. If your set up right you wont have a problem. I have a '74 with a 9" 4 link set up. 30"X10" Goodyears. I have a 632 making 1187 with a 300 shot off the transbrake. No progressive controler! I'm running 8:50 without spraying it. I can hit it with 2 stage 300 each!
Last edited by SpeedyGjr; Jan 3, 2010 at 10:26 PM.
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From: Olive Branch MS
I am sure your 9" setup with handle a 150hp shot no problem....I wouldn't worry about breaking your stuff.....To get it to hook, you MAY have to put a progressive on the kit and ramp it in....No biggie...NOS makes a nice little digital progress box for $250....I have installed a few on bikes and they work well.....I doubt you need it with only a 150 shot though...You'll be well in the 9s on a 150 shot....
Le Mans Master
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From: League City Tx
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From: Olive Branch MS
Dont worry about breaking anything. If your set up right you wont have a problem. I have a '74 with a 9" 4 link set up. 30"X10" Goodyears. I have a 632 making 1187 with a 300 shot off the transbrake. No progressive controler! I'm running 8:50 without spraying it. I can hit it with 2 stage 300 each!
Le Mans Master
Joined: May 2006
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From: League City Tx
I had a Moser 9" w/Strange 3rd member, all the goodies in it, Pro-nodular iron case, chrome moly everything, 31 splines and a Tru Trac posi. My car was making 550rwhp and weighed 3920lbs and was 6spd....it was holding up to 4k dumps on the spray on ET streets...it wasn't 60' ing because the chasis wouldn't work but the rear end held up fine.....tranny and clutch was another subject.....
9"= GOOD
Now I stick with Autos....
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From: Olive Branch MS
Wikipedia is our friend:
Nitrogen dioxide is the chemical compound with the formula NO2. One of several nitrogen oxides, NO2 is an intermediate in the industrial synthesis of nitric acid, millions of tons of which are produced each year. This reddish-brown toxic gas has a characteristic sharp, biting odor and is a prominent air pollutant. Nitrogen dioxide is a paramagnetic bent molecule with C2v point group symmetry.
Nitrous oxide, commonly known as happy gas or laughing gas, is a chemical compound with the chemical formula N2O. At room temperature, it is a colorless non-flammable gas, with a pleasant, slightly sweet odor and taste. It is used in surgery and dentistry for its anesthetic and analgesic effects. It is known as "laughing gas" due to the euphoric effects of inhaling it, a property that has led to its recreational use as a dissociative drug. It is also used as an oxidizer in rocketry and in motor racing to increase the power output of engines. At elevated temperatures, nitrous oxide is a powerful oxidizer similar to molecular oxygen. For example, nitrous oxide in a test tube will re-ignite a smoldering splint.
Nitrogen dioxide is the chemical compound with the formula NO2. One of several nitrogen oxides, NO2 is an intermediate in the industrial synthesis of nitric acid, millions of tons of which are produced each year. This reddish-brown toxic gas has a characteristic sharp, biting odor and is a prominent air pollutant. Nitrogen dioxide is a paramagnetic bent molecule with C2v point group symmetry.
Nitrous oxide, commonly known as happy gas or laughing gas, is a chemical compound with the chemical formula N2O. At room temperature, it is a colorless non-flammable gas, with a pleasant, slightly sweet odor and taste. It is used in surgery and dentistry for its anesthetic and analgesic effects. It is known as "laughing gas" due to the euphoric effects of inhaling it, a property that has led to its recreational use as a dissociative drug. It is also used as an oxidizer in rocketry and in motor racing to increase the power output of engines. At elevated temperatures, nitrous oxide is a powerful oxidizer similar to molecular oxygen. For example, nitrous oxide in a test tube will re-ignite a smoldering splint.
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From: Olive Branch MS
My 9" housing is braced and has good Moser axles. The only thing is that the center section is a stock one. I also am running a tru trac carrier,too. I think I might get an aftermarket center and spool to swap in for racing. They swap pretty easy and it would save a little weight too. I really don't want to drive a spool on the street. I know guys that do and they don't seem to drive that much any more.
I definitely will stay with autos for drag racing. Some have good luck shifting, but I've always broke lots of stuff myself. I guess if you want to shift it, you just buy the right stuff for that and don't worry about it.
I definitely will stay with autos for drag racing. Some have good luck shifting, but I've always broke lots of stuff myself. I guess if you want to shift it, you just buy the right stuff for that and don't worry about it.
Tech Contributor
Joined: Aug 1999
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From: At my Bar drinking and wrenching in Lafayette Colorado
I posted incorrect statements earlier regarding N2O vs NO2. The gas in automotive Nitrous systems is N2O, a toned-down cousin to the oxidizer we use in rocket fuel, N2O4 (di-nitrogen tetroxide).
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