Need other NOS/Propane users RWHP/RWTQ #'s

[1BADSNK]

Need other NOS/Propane users RWHP/RWTQ #\'s

I only gained 116rwhp and 214rwtq with a BTR NOS/PROPANE/GAS kit. Before the added expense of the gas to the kit I had gained 109rwhp/214rwtq. So the addition of gas only gave me 7rwhp. FAR from what is advertised.

What are some dyno #'s out there with other NOS users?

 

[RedEnuf93]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

OK, Gen 1 numbers:

410HP/477TQ baseline

500HP/633TQ with 150(HP) jets
562HP/714TQ with 200(HP) jets
582HP/720TQ with 220(HP) jets (Custom cut)
597HP/768TQ with 300(HP) jets

NX Express system.

 

[Catwood]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

See my sig....

 

[ChicagoGTS]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

There are others here that could give a much more techical breakdown and I maybe off base since I myself am in the process of researching no2, but I think the added propane is strictly for enrichment (prevents lean conditions) it is not specifically meant to make more power. I believe propane allows you to safely PRODUCE more power. Since your stock fuel pump is maxed out the addition of propane allows you to run more aggressive nozzels and tuning on the no2. By supplimenting pump fuel with propane (which has a higher octain rating) you're preventing detonation, I could be wrong but that's just my $.02

~Matt~

 

[Jack B]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

1BadSnk:

Your sig is confusing you are indicating 656 hp, but your post says you only gained 116 hp, something doesn't add up.

Anyway, the propane is the primary fuel enrichment. It is 140 octane and does far better than gas when spraying in the tubes. The limitation is the propane bottle pressure. You are not going much beyond 600-650 hp on a stock motor.

The addition of the gas enrichment gives you the ability to get approx 750 hp/900 ft-lb. This is utilizing the tubes. The gas option with the BTR kit is added thru two additional solenoids, one nitrous and one fuel. The reason for the fuel solenoid has alreaday been explained. The reason for the additional nitrous solenoid is that most nitrous solenoids start maxing out after 200 hp, especially the NOS nitrous Cheater series. This is the most common solenoid in the viper kits. NX has some solenoids that will flow 300 hp. That Cheater solenoid only has a .090 orfice.

 

[VIPER D]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

This what mt gen 3 btr kit made on a stock motor

vd..

 

[Jack B]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

Viper D:

nice number, but, why does the hp drop off so fast.

 

[Qualitywires.com]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

Why is it with NO2 the torque curve is way higher than the HP compared to let's say a SC or twin turbo car?

 

[Cudaman]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

Why is it with NO2 the torque curve is way higher than the HP compared to let's say a SC or twin turbo car?

All nitrous cars are always that way AB....

"Horsepower sells cars, Torque wins races"



Cudaman

 

[1BADSNK]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

Redenuff 93:
Your #'s look good.

Catwood:
Your #'s are close to mine. Do you have heads/cam, exhaust,etc...like I do?

Jack B:
Your right it should be 115rwhp not 116rwhp. 656-541=115! My motor isn't stock putting out 541/590 at the wheels. Your right again. Something doesn't add up.

Viper D:
Are your #'s at the wheels or flywheel?

What about everybody's air/fuel ratio? What are your #'s like?

 

[VIPER D]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

My dyno #'s are made an mustang dyno (always lower than dynojet but better for tuning) On a dyno jet i would of broke in the the 700 range

The #'s are rwhp and rwtq.

As far as why the hp drops off fast, I don't know all I can say that its a crazy ride good for mid to hight 10's on runflats.

vd..

 

[Dr Roof]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

I only gained 116rwhp and 214rwtq with a BTR NOS/PROPANE/GAS kit. Before the added expense of the gas to the kit I had gained 109rwhp/214rwtq. So the addition of gas only gave me 7rwhp. FAR from what is advertised.

What are some dyno #'s out there with other NOS users?

Have you talked to Tom?

I am sure he will be available to help you. Not sure what the advertised gain is but I know his cars when tuned properly are killer set-ups.

Maybe youneed some minor adjustments to get the numbers your looking for

Good Luck

 

[BigCarrot]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

I don't have propane, but I do have a fuel cell with 114 for enrichment. I did right at 700rwhp/900ftlbs.

 

[VIPER D]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

Can some nos guys post some pics of their setups. Its would be nice to see some pics.


vd..

 

[BigCarrot]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

Hmm... I would, but they won't take Alley pics over here. Mine is pretty cool looking though!

 

[PRVT JET]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

Big carrot does have a nice set up, every ones set up is nice and different in a very good way. Nitrous has a lot of potential. I have a very simple set up and I make 605/690 with 150 shot.

isaac

 

[ACELLR8]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

I am amazed at how much of a differance heads & cam made when spraying on my Gen I.
I have the NX kit in my Gen I. Before heads and cam with a 200 shot I made 533 RWHP & 800 RWTQ, but as you can see torque just dropped off fast.

Now with heads, cam and long tube headers I got a much better response and only used a 150 shot. Car is running way lean, I had to use the 150 N2O jet and the 200 Fuel jet to get proper air fuel. Once I can get my air fuel right I think I will go with back to the 200 shot.

 

[SneakyPete]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

Mike,

It never ends does it. I swear both are cars are cursed.

I thought the big difference was with the old NOS setup, they had a way to fool the pcm to run more fuel, thus you could spray more and get better numbers.

When went to NX express kits, they lost that setup and numbers are down a little.

 

[ACELLR8]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

Hmm... I would, but they won't take Alley pics over here. Mine is pretty cool looking though!

I saw a pic of your direct port, looks great!! I was just curious did you direct port it yourself or buy it like that.

Also, besides getting a more consistant amount of n2o and fuel to each cylinder what are some other bennefits.

Ed

 

[BigCarrot]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

I had NX do the intake for me. Well, the consistency allows you to use a bigger shot safely. Each cylinder gets the same amount, which can be a problem with the dual nozzles. That's the main benefit. It looks cool too!

 

[J DAWG]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

I had NX do the intake for me. Well, the consistency allows you to use a bigger shot safely. Each cylinder gets the same amount, which can be a problem with the dual nozzles. That's the main benefit. It looks cool too!

BC, sounds like an awesome setup, but I could not find the pics under your gallery. I assume you are coming to Shreveport and hope to see it in person.

On a good track your car would be capable of high 9 second runs.


John

 

[1BADSNK]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

Dr. Roof:
I've called BTR in the past. The last two times I called I only was able to talk to the vette guy and no return calls from Tom. I've got all my answers(pos./neg.) anyway from other reliable sources on the problems.

Jay:
What's up? Yea it seems as though they are cursed. I'm using the 4 port NX nozzles now and still have 1 port on each side open so we are going to buy another NOS solenoid and spray more juice since the kit is topped out. Then open up the gas/propane jets to compensate so my air/fuel ratio stays in the safe range. If you notice on a couple of those posted dyno sheets the air/fuel ratio starts out too high(15:1-18:1) then comes down. Mine is safe across the board. I don't want any detonation even if it's for a second like some.

 

[Catwood]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

Redenuff 93:
Your #'s look good.

Catwood:
Your #'s are close to mine. Do you have heads/cam, exhaust,etc...like I do?


What about everybody's air/fuel ratio? What are your #'s like?

I have the BTR 650 kit, headers & exhaust only. No head work.

I'm a bit lean so I won't run the max anylonger.

 

[BigCarrot]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

I had NX do the intake for me. Well, the consistency allows you to use a bigger shot safely. Each cylinder gets the same amount, which can be a problem with the dual nozzles. That's the main benefit. It looks cool too!

BC, sounds like an awesome setup, but I could not find the pics under your gallery. I assume you are coming to Shreveport and hope to see it in person.

On a good track your car would be capable of high 9 second runs.


John

There are a couple of pics over there of my intake, but they aren't in my gallery. I will be at Shreveport barring any unforseen problems. I'll be glad to show it to you. I think it's about as tricked out as a nitrous system can get!

 

[Tom Welch]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

Your numbers are most definately LOW for your combination.

A recent 2000 GTS with my installed NX BTR NOS/PROPANE/GASOLINE injection made 710 RWHP @ 905 RWTQ. The car also has our head and cam package. (505 RWHP on motor)

A recent SRT with our NOS/PROPANE injection made
736 RWHP @ 912 RWTQ. This car has our heads and cam package
(502 RWHP on motor)

My own Viper with a 3 year old nitrous system makes 675 RWHP on its first stage (nitrous/propane only)and an additional 110 RWHP with the second stage of nitrous/gasoline with a constant a/f of 10.5. The car makes
507 RWHP on motor.


Dimitri above recently made astonishing RWHP and RWTQ with
an otherwise stock combination.

Andy from Atlanta recently made 640 RWHP with our NOS/PROPANE injection on his stock SRT with very conservative jetting.

There is much more to a combination especially when considering nitrous injection. Cylinder head design, runner shape, combustion chamber shape, back cut on valves and many other items make up a nitrous head, not just flow numbers.

I do not know anything about your combination, I can say that our kits work, and work well. This is proven. You may also want to test some of your kits components as I believe your kit was purchased used, then important parts were interchanged and upgraded to NX components. I have not tested these components when mixed together.

Tom

 

[Jack B]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

Tom:

you will love this one. I changed from a fuel solenoid to larger injectors, which I use for the enrichment. Tonight I was turning on the first stage at 2850, at that point the torque is 400 ft-lbs, at 3200 the torque was 800. Here is the funny part, the car accelerates so hard the tires start spinning on the dyno drum. The first two pulls we couldn't get over 75 mph.

I am using smaller nitrous jets than last year and putting out far more power and it comes on faster. The combination of your heads and the injector enrichment has changed the whole power curve. The standard jet sizes are now far to large for a given hp.

Someone should explain to a few of the nitrous owners on this board, you don't turn on the nitrous at 2000-2500 on the dyno. I have seen several posts where the nitrous turns on close to 2000. Eventually you will be looking for new half shafts or even worse a new crank shaft. It inflates the torque numbers, but, at a huge risk.

 

[Ivory]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

How many high HP nitrous users have replaced their half shafts? I'm going to do a nitrous setup but was wondering if I should do half shafts first. Thinking of a 150 shot on a gen 1.

 

[Tom Welch]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

Jack,

Thanks for the input.....and its good to see your testing has provieded serious results.

I always tell customers to make their nitrous pull from 3000 to 5000 rpms, and those numbers are also written in my installation instructions. Turning on nitrous too soon can also cause a backfire which can crack intake tubes and airbox assemblies. Not everyone who is using nitrous and propane is my customer, I cannot begin to speak as to why their Vipers do not perform like a typical BTR customer car.

Jack, you need to put that beast on the track while the weather is good up there and take claim to the first Ohio based 9 second Viper!!

Tom

 

[pauls]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

Jack, columbus will be perfect HP weather in Sept. And you can spank a little bow-tie at the Viper Vett shoot out.

 

[ChicagoGTS]

Re: Need other NOS/Propane users RWHP/RWTQ #\'s

How many high HP nitrous users have replaced their half shafts? I'm going to do a nitrous setup but was wondering if I should do half shafts first. Thinking of a 150 shot on a gen 1.

It depends on what tires you are planning on using. If your going to run pilots in my opinion don't bother.