https://ls1tech.com/forums/showthrea...ghlight=pusher

This is a post NXRicky published.

 

I'm running the same converter and rear gear (SY3500 & 3.42's)... I got 86 RWHP from an NX 100 w/ the same 52/31 jetting you run, and I got 116 RW from a 150 shot - 62/33 jetting. TR6's gapped at .038", my a/f was 12.0:1 w/ the 100 & 150 jetting. TQ spike was in the 530's both times. I have some 200 jets - 78/44, I was going to dyno for craps and giggles at the next dyno day. But, car developed a rod knock from the balancer walking and the ARP bolt not staying tight after being on the car over a year.

 

No nitrous company that I'm aware of includes a bottle heater in their basic kit. Also, as we all learn soon enough, there are a several important safety items which should be used that aren't included.

Will a basic kit produce the advertised hp without a bottle heater? Yes, but only when the ambient temperature is high enough. In 90+ degrees temps, a bottle heater isn't necessary unless your bottle is getting low, my point being that the power statements are accurate when conditions are right and/or the necessary equipment is used.

 

X,
You got that right. Nothing scarier then opening the bottle after the car has been out in the Florida sun and seeing almost 1200 PSI!!!
It is purge city!!!!

 

i may have missed something, but i didnt see where you maybe tried a different bottle of nitrous maybe filled from a different place. i have had bottles filled and out of 4, gotten 1 that was full of mostly air on at least 2 occations.

a bottle heater is a must, i used to run mine at 1150 to get a good hit.

my nx 100 gave me about 110 at the wheels, and my tnt 100 gave me 135 at the wheels on my m6 trans am. i had a friend with a 98 a4 ta and we dynoed his car on a nx 100 and he got about 90 at the wheels, probably due to converter flash/slippage. but his car ran great on the street.

 

I stand corrrected!! Guess I forgot about the bottle left oin the back of a car in the sun!! You southern guys got it made.. Its in the 50s here now. Our warm days, (was 80 here 2 days ago) appear to be gone till spring..

A question for you guys, is there a "jet ratio" that works that works for these systems? If you double the 100 shot, is it a 200 shot??

Thanks

 

I have a jet calculator I use to run with different fuel pressure on the direct port. For a 200 shot (single nozzle) the calc states a 73 N and a 39 F (this with 1050 PSI nitrous and 55-58 psi fuel). Oddly enough the calc states 52 N and 28 F for a 100 shot compared to NX recommendations of 52 N and 31 F....
Maybe NX is thinking the fuel pressure is going to drop off more during a run. Jetting fatter would make sure you did not go lean but would rob you HP.

 

Fastbsser...you did the right thing with getting the car on the dyno to check power output and more importantly AF ratios.

But just because your HP was low is not NX's fault. Any nitrous kit is just a delivery mechanism for fuel and nitrous and most will deliver if the parameters of the kit are met. The difference in kits is in the quality and attention to details.

Having said that...all kits come with basic parameters that need to be met in order for the kits to reach thier potential.
You are outside of some of those paremeters already and some seem to be unknowns. Bottle pressure surely plays a big part in your missing HP. Plugs may be another. Also...what condition is the motor? Everything ok there?

When NX or any other manufacturer rates a kit...its under the assumption that it is operating correctly. You still have some detials to work out. The advise given so far is good and it sounds like you have a plan. I am sure that once you make these changes you will find your HP and the NX kit will deliver.
Any fool can slap on a nitrous kit and hit the button. But attention to the details and knowing whats going on with the kit and the car is what gets the end user the desired results. The end user must take some part in set up and operation for it to work effectively.

details...details...details....


BTW..my NX direct port with 200 shot gave me 215 at the rear wheels. It was a tad lean due to the density of the fuel being used. I will adjust a few things and it should pick up a few more.

Good luck and let us know how it turns out.

 

One other question? Are these the TEA raised runner heads? And if so...where did you get them?

 

Yes,

Got them with a port matched intake from a guy on the Corvette Forum.

Why??

 

Ahhhh...you have my old heads
Are they working out for you?

 

Well,
I just seen this post.Sorry Not all dealers or sponsors have the weekend to look at the board..... Some of us are working desighning new products.Change the fuel jet to a 28 andf get the bottle pressure up.As long as everything else is right it will make the power.
The reason not all systems come mandatory with a heater is because the customer may already have one.If the customer needs one all they have to do is order it also.This way no one getrs hit with the mark up of parts they may not need.
Thanks
Dave

 

Well,
I just seen this post.Sorry Not all dealers or sponsors have the weekend to look at the board...This is the time we take to work races or desighn new products.And in a very rare occasion we may actually just be finnaly be completly worn out and take a day off.lol Change the fuel jet to a 28 and get the bottle pressure up.As long as everything else is right it will make the power.
The reason not all systems come mandatory with a heater is because the customer may already have one.If the customer needs one all they have to do is order it also.This way no one getrs hit with the mark up of parts they may not need.
Thanks
Dave

 

[QUOTE=XTrooper]No nitrous company that I'm aware of includes a bottle heater in their basic kit. Also, as we all learn soon enough, there are a several important safety items which should be used that aren't included.
[QUOTE]

Just curious, what saftey options should a nitrous kit come with??

 

[QUOTE=David@TNT][QUOTE=XTrooper]No nitrous company that I'm aware of includes a bottle heater in their basic kit. Also, as we all learn soon enough, there are a several important safety items which should be used that aren't included.
Do I really need to answer this question for you?

 

Dont think the question was asked of us "users"..

 

[QUOTE=XTrooper][QUOTE=David@TNT]
Well ya?? Thats why I asked.. Its not a trick question or something, I just honestly wanted to know what saftey items arnt included in most nitrous kits??

 

I sort of had this same problem. Im running a TNT Power Ring and was trying to spray a 200 shot but only got 175 to the wheels. Well I was told it was because I was using NXs pill sizes so I called TNT and supposudly you cant run their nozzles on a low pressure fuel system. It seemed kind of odd to me that they would say that because with their nozzle and NXs pill size for a 175 shot it made 175 rwhp. I then movied it up and it went a little lean on me and didnt make what it should have and havent been back since.

 

[QUOTE=David@TNT][QUOTE=XTrooper]I think at the very least a fuel pressure safety switch should be included particularly in wet kits. I hesitate to include an rpm window switch in the list, but only because there are so many different types and brands on the market.