You could just not turn it on, do a run, and then turn it on and do a run. Unless you mean about the intake manifold.
The intake manifold will make a top end difference, but the above suggestion would be valid to see the difference between nitrous and not.
You’d have to believe if it’s a 100hp kit that the results would be 100hp.
This math checks out
The 75 and 100 shot, produce equal WHP numbers for both. Trying to dyno on an automatic will be difficult. The Tq converter is going to try and lock up, then the transmission will try to down shift if not done properly. Adding nitrous into that formula will make it even more challenging.
Couldnt i just put it in tip mode and select 3rd or 4th gear?
The JHM site seems to allude to getting more than 100hp out of the kit if the car has their headers… anybody have insight on that?
^ try putting it in 4th at 2000rpm and completely floor it and tell me what happens. A coke says it’ll downshift to 2nd or 3rd.
Better supporting mods will give you better then advertised results. The rule of thumb, if you have the 75whp jets in you’re getting 75whp gain.
You can put it in tip mode, but the car will still down shift if it sees too much load in that gear.
Wow! I love your car.
I’m sure you can’t go wrong with the JHM NOS kit. I’m going to throw another option out there.
If you look at length of car ownership, SUVs and Wagons WAY outlast regular sedans. I believe that is because everyone always needs a truck. SUVs and Wagons are the Audi trucks of today. The versatile, do-everthing vehicle.
You have already dumped a bunch of cash into your car. I am going to assume that you will keep it for awhile, considering that, and its versatility (never mind its rarity).
So, in that case, you MIGHT want to look at the JHM supercharger. For the price, it just cant be beat. The NOS kit is awesome, but over the long run I think the supercharger is a better bang for the buck.
The ONLY modified Audi I ever considered making the guy an offer on was Axel’s B7 S4 Avant with the JHM supercharger. I was going to, and then read a post somewhere that he had no interest in selling. I suggest you at least talk to him before you make a decision on the NOS kit. If it was me with your car, I would definitely go for the JHM Vortech.
Good luck. Whatever way you go, I am sure youll be very pleased.
I bet you’re right. I wired it all up and went through everything with a meter. Pulled it all out for the second time. A friend is going to go through it with me again. For some reason the solenoids aren’t opening.
Ok so the car got dropped off this morning for the instal of the intake manifold and the nitrous kit…
First issue… I had planed to have the tank mounted in the spare tire compartment. I had seen this done on another B7 avant, and i wanted to maintain the truck space and keep a desecrate instal. The shop went to test fit it, and they are saying its a no-go.
Apparently the remote bottle opener is the issue… otherwise, it would be tight, but would fit.
Has anybody dealt with this issue? Is there any way to modify the spare tire space slightly to get it to fit? Without looking in the car, its hard for me to come up with a better alternative than just mounting it flat to trunk bed.
Controls for the system will be mounted in the ash tray area in front of the shifter… if anybody has feedback on that call, please let me know.
More updates as we go… should be done by friday
The remote bottle opener is bulky. You could make it work but it would take a modification of the brackets and modification to the spare wheel hub and compartment.
I have my bottled mounted in the spare tire wheel well on my b6 avant. I don’t have the remote bottle opener though.
Sorry to hear it doesn’t fit. Good to know since I was planning on getting one eventually. You could forgo the remote opener, but it would be a nice feature.
Yeah i really wanted to be able to activate it without stopping the car etc…
Ill have them explore the idea of modifying the spare compartment, but i have a feeling it will be too expensive…
ill update tomorrow
I leave my bottle open all the time. You can get a valve to put in the line if you want to have some safety.
Justin,
Do you get a slight leak leaving it open all the time?
Right… thought gas escape due to the extreme pressure of the system was the reason to shut it off at the tank when not in use…
People say to shut off your propane tank when not barbecuing but it’s a right pain to do so, and I never ever have. I’ve never noticed it randomly leaking enough to notice. Not that it’s related entirely, but I thought about it when I was there heloing/(watching) JHM install the first nitrous kits on 91gl and cabracco85’s cars.
That is a concern. The sorce of the issue comes from the swing of the bottle pressure. If your bottle is left in a hot car and your bottle is full the line pressure can get to over 1100psi then the bottle cools off and gets down to 800psi thats a big swing. The constant rise and dropping of the pressure is what concerns people. The thought is that over time the pressure can find a weak spot to leak out or put lots of pressure on the selinoids. I have never had an issue. I have a bottle blanket tho. That keeps the pressure in the same range.
The safe thing is to keep the bottle shut off if its not in use. I originially kept the bottle on as I read my NOS pressure gauge all the time and wanted to see what the range was from day to day and temp to temp. The way I thought about it was. When you shut off the bottle your still keeping pressure in the line. If I shut off the bottle the pressure still says in the line it might fluxuate a little but I thought whats the difference. I just don’t turn on the bottle heater unless I plan on dropping some whoop ass. If I feel I’m in possible race territory I kick on the heater if im below 800psi
Any way to put a angled fitting at the end of the bottle fr the valve? Just tossing around ideas, I have no idea what the set up looks like.