I installed a Nitrous Express kit on my car and finally tried it out this weekend.



I installed NGK 6510 spark plugs and the nitrous kit the way it came, the only thing I have added so far is a gauge to the bottle. I plan to add a window switch for added safety because I'm worried about hitting the limiter if I blow the tires off and I don't want a backfire to crack my intake manifold or anything. I also ran some Torco Acclerator just to be safe, it brings 10 gallons of 93 up to 104 octane.

I tried the 50 shot jets first to make sure everything was working right, the power increase was smooth and a little understated. It wasn't a huge rush as I am used to with nitrous. The fact that I have no purge solenoid brings the nitrous in a little easier so that's probably part of it.

I tried the 50 and100 shot jets at the drag strip today, it was 91 degrees and humid. My best time at this track in cool air was 11.90 @ 117.6 so I imagine in the heat today it would have been about 12.1 or 12.2 @ 116. On the 50 shot jets I ran 11.78 @ 119.5 on the first pass, which I assume was a little worse because of no purge. I launched easy and pulled a 1.89 60'. I also didn't activate the nitrous until 2nd gear. I think if I made a second pass on the 50 shot it would have picked up some but I bumped it up to 100 for the next two passes.



The 100 shot felt totally different, it was a big rush and felt like a lot more power, night and day from stock or the 50. The next pass was 11.48 @ 125.6, but the bottle was cooling off and I didn't wire up my heater yet. Pressure was just under 900 psi. I figured being 90 some degrees out I wouldn't need a heater but I was wrong. I let the bottle sit in the sun but the highest it got was 950 psi. That pass was 11.26 @ 128, the time slip printer messed up so I don't know my 60'. I left a little harder I would guess about a 1.80.


Nitrous express kits are designed to operate at 1050 psi so I think it would have picked up a little with a fully warm bottle. I don't have a tune on the car so stock timing and all. Best I can tell I picked up about 10-12 mph on 100 shot, which I think is great. I'm pretty sure with a warm bottle and cool air I could touch 130 mph and 10's with a good launch. Not bad for a car with one mod lol.

I will eventually try the 150 shot but I'll need to pull a degree or two of timing for that so it'll be down the road.

 

Sounds right on the 100 shot

Yea get a heater in that rig with a good launch should be 10s at 130

 

That install looks incredibly clean. Very impressed. Yeah get you a heater and purge.

 

You're almost ready to run a boosted car now. Ha!

 

Thanks! I have a heater I just didn't wire the relay up yet, I'll probably hide the wiring over by the battery and just bring it out when I am using the bottle.

I may not go with a purge, I feel like on the 100 shot it comes in nicely and doesn't knock the tires off.

 

How quickly can you get me a 15982NOS? Everyone seems to be out of stock...

 

Says the guy who can't hit 3rd and hasn't made a pass!!

I will race ANY other one mod C7 on stock tires

 

Touché. I deserved that one. I figured I'd come onto your thread and mess with you a little since we were stepping on the other guys thread. I'll getcha. Just give me time.

 

No worries man I wasn't being rude just bustin your *****. We did kinda take over his thread lol. I emailed Amsoil for you to ask what kinda fluid they recommend for high RPM shifts since their websites lists 3 different ATF's for the M7.

And I have no doubt you'll be faster, the only thing I'll really be able to do to improve is run in better air with a warmer bottle, then step up to the 150 shot. That still won't be enough for a blower car with headers and meth, but it'll be enough for me

 

I totally didn't take it as you being rude. It made me laugh. I like to have fun... That's the problem on this forum too many uptight people. You've been a big help already, and I appreciate it. Made think about doing the little things instead of knee jerk reaction to a problem. You car is already fast. I respect what you've done, as well as timeslips to prove it. More than I've done as of yet. What state do you live in? I'm in Texas.

 

Looks like the system takes dot 4 brake fluid.

 

Great trap speed! This is on an A8?

Can't wait to see the 150shot and 130 traps.

 

Sounds like the most cost efficient and easiest way to boost a LT1 into the low 11's. I've always been wary of Nitrous because of guys I knew that messed up putting them on and screwing up their car.

 

I'm from Ohio but I moved to NC for work about a year ago. I was just in Houston and Beaumont last month to visit a customer.

Houston has A LOT of concrete.

 

Yeah that sounds right, the best brake fluid is new brake fluid. It just wouldn't hurt anything to flush/refresh it when you do the line.

Do those cars share brake and clutch fluid or are they separate systems? My mustang it was shared.

 

Yes this is an A8. I think on a cool day with 1050 psi in the bottle I could hit 130 mph on the 100 shot. I'll very likely wait until the fall to try the 150 when the air gets good again.

 

Nitrous has always been the cheapest way to make power. This car would be 10's with tires in 91 degree air, not bad for spending less than $1000.

The people who mess things up with nitrous don't follow basic rules, they get too greedy with the jets and/or don't pull enough timing usually. Nitrous is the only power adder that lowers IAT's rather than raising them, and it doesn't put added strain on the rotating assembly like spinning a supercharger does. Not to mention it doesn't add nearly as much weight, blower kits usually add ~100 lbs on the front end (worst place) of the car.

I'm not saying blowers are bad, I'm just saying that nitrous is the best bang for the buck and has some of its own advantages.

 

NOS ignorant here... If the NOS is only activated at WOT and the C7 rev limiter is to cut fuel... Then if you do blow the tires off and keep it on the floor, you could over rev. By the same logic, if you let off the gas when blow the tires off, you should be able to shut her down before over rev too much. What does the window switch do then?

 

Hitting the rev limiter on nitrous is never a good plan, it can lead to backfires that can break the intake manifold or damage other engine parts.

If the ECU cut fuel the engine would be breaking up, regardless if the nitrous/fuel were still flowing. It would also lean out up top.

"Shut her down before you rev too much" isn't going to work. By the time you could even hear the rev limiter you could have a backfire. I've done it, it can happen instantly.

The window switch prevents you from activating the nitrous and rev limiter at the same time, which can result in catastrophic failure.

 

Amsoil emailed back and said they recommend the ATD1G for the M7

http://www.amsoil.com/shop/by-product/transmission-fluid/automatic/torque-drive-synthetic-automatic-transmission-fluid/