What is the biggest shot of nitrous you could possibly run?

[Group.america]

When running nos both terry and hotrod were running cps to lower timing to around 9* peak. Not sure what the reasoning is, never run nos myself.

Lower timing to prevent a very big EXPLOSION

[klipseracer]

BP/EGT are directly related to boost, so as long as you can maintain target boost you are basically ok. At some point (maybe this point is fairly early) the housing/manifold can't accommodate the increased airflow. Higher boost WGs are more closed... I'd think there's a good amount of room. You may need to start playing with WGDC (lower base) with a certain size shot.

Garth @undercover said he did a 200 shot. I'm going to assume this was a direct port wet shot and with ProEFI. Perhaps I'll start with a 300 and move up from there. The tune for this would be purely top end and to fill my curiosity.

EDIT: I'm realizing he said, 'two octobers ago'. So this would be prior to the manifold and ProEFI I'll assume... If 200 shot is possible without going direct port, then maybe this may work. Remember, the point here is to break the car, but find some potentially useful information. What happens if this thing happens to be solid at 700rw on nitrous and stock turbos? LOL...

[V8Bait]

Garth @undercover said he did a 200 shot. I'm going to assume this was a direct port wet shot and with ProEFI. Perhaps I'll start with a 300 and move up from there. The tune for this would be purely top end and to fill my curiosity.

EDIT: I'm realizing he said, 'two octobers ago'. So this would be prior to the manifold and ProEFI I'll assume... If 200 shot is possible without going direct port, then maybe this may work. Remember, the point here is to break the car, but find some potentially useful information. What happens if this thing happens to be solid at 700rw on nitrous and stock turbos? LOL...

It might be. But at that point you'll probably be running no WGDC and still sustaining 18psi lol. As soon as that happens, bad things are right around the corner. Should be cool to see but I don't think it will tell us much about the motor... you'll most likely kill a piston here from heat/detonation. Regardless I expect videos, it's rare to have someone put a cool car on a dyno with the purpose to find a breaking point but I do very much so like the idea in a very "watch the world burn" sort of way.

[undercover]

Guys! I'll hop on tomorrow. Have had my hands absurdly full last cpl days. Havnt even read. But appears interesting and funny

[klipseracer]

It might be. But at that point you'll probably be running no WGDC and still sustaining 18psi lol. As soon as that happens, bad things are right around the corner. Should be cool to see but I don't think it will tell us much about the motor... you'll most likely kill a piston here from heat/detonation. Regardless I expect videos, it's rare to have someone put a cool car on a dyno with the purpose to find a breaking point but I do very much so like the idea in a very "watch the world burn" sort of way.

Project Boom.

I've got the new ProEFI still in my sights, so thats one thing. And VTTS3 or a big single capable of 900 is also something I want to gun for. Built motor is going to be required. Why not have fun with the internals while you can. Will just have to find a tuner who will agree to turn the car to that point and be willing to deal with the mess it makes. I'm considering just going 6MT, but while I wait for the stand alone and VTTS3 to mature, we'll see where the DCT is at by then. Arizona has lots of very nice straight freeway and is 99% of the driving I do, so a laggy turbo doesn't bother me so much.

[boosted-M]

Hey guys - I can add my .02 regarding N20 on my 335xi this weekend when I have my laptop to post maps and datalogs etc.

Here are a few threads:

http://www.germanboost.com/showthrea...3-Nitrous-Talk

http://www.germanboost.com/showthrea...et-for-Nitrous

http://www.germanboost.com/showthrea...us-for-the-N54

http://www.germanboost.com/showthrea...eel-horsepower

[klipseracer]

Hey guys - I can add my .02 regarding N20 on my 335xi this weekend when I have my laptop to post maps and datalogs etc.

Here are a few threads:

http://www.germanboost.com/showthrea...3-Nitrous-Talk

http://www.germanboost.com/showthrea...et-for-Nitrous

http://www.germanboost.com/showthrea...us-for-the-N54

http://www.germanboost.com/showthrea...eel-horsepower

Would love to have your input. But everything you've posted and that I've read seems to be a limitation in either the transmission, tuning or fuel delivery. I have see nothing with a proper direct port stand alone with proper fuel cell running an excessively large shot. The goal is to be excessive

[Abacus38]

Bumping this. My roommate was throwing around the idea of throwing a 100 dry shot on my car. There's a lot of guys running around Orlando with 200-600 shot of nitrous in their cars. Our only problem is tuning but then again on the Cobb you can just find someone to create a nitrous map for you and used a progressive controller so your not spraying in first gear and below 3000 rpms

[Carl Morris]

Bottom line...the lower the rpm is, the bigger the torque peak from the nitrous. So if you want to make a big horsepower number before it breaks, do it at high rpm only. 5000+. The wastegates seem to be relatively big for the stock turbos so you should be able to run a lot before boost creep is an issue. If you don't have detonation issues due to too much timing or fuel delivery problems my prediction is that you could hit it with a 500 shot at 6000rpm and it would live at least long enough to record a big number. At that rpm you're adding less than 500ft/lbs. It's a lot, but it might be survivable.

[subaru335i]

My vote is for a 1000 dry shot at 2000 rpm in 6th gear. Nothing will break I am sure.

[Sticky]

Bottom line...the lower the rpm is, the bigger the torque peak from the nitrous. So if you want to make a big horsepower number before it breaks, do it at high rpm only. 5000+. The wastegates seem to be relatively big for the stock turbos so you should be able to run a lot before boost creep is an issue. If you don't have detonation issues due to too much timing or fuel delivery problems my prediction is that you could hit it with a 500 shot at 6000rpm and it would live at least long enough to record a big number. At that rpm you're adding less than 500ft/lbs. It's a lot, but it might be survivable.

He's right.

However, you have to pay attention to the timing as well and what your tune is already doing.

100 shot dry just doesn't sound good to me especially if you haven't been running nitrous yet. Start small, work your way up. A small jet and a smaller shot to see how the car reacts is fine.

Other cars running 200-600 doesn't even apply as I guarantee none of those are dry setups.

[Sticky]

Bumping this. My roommate was throwing around the idea of throwing a 100 dry shot on my car. There's a lot of guys running around Orlando with 200-600 shot of nitrous in their cars. Our only problem is tuning but then again on the Cobb you can just find someone to create a nitrous map for you and used a progressive controller so your not spraying in first gear and below 3000 rpms

Also, have your roommate throw nitrous on his car first before he starts pumping it into your motor.

[boosted-M]

Hey guys - I have a practically brand new NX Express complete kit for sale. You can run it dry or wet with a Plug &Play fuel adapter for a BMW 335i. Send me a PM if you have interest

[brusk]

It would be nice to see people actually start playing with N2O again, seeing how the platform has matured some with a lot better tuning knowledge and hardware. I think the previous knowledge from before still holds, no need to use it to spool the stock turbos but using a little to smooth out the power especially on the high end might be good for the strip. Stage 2+ might be able to start really playing with it, Singles and Stage 3 Twins maybe a little down low but after that point you already have the ability to run as much boost as you want to meet your HP demands.

[Sticky]

The thing is back when people were playing with N20 is you have no other options for big power.

Now, most people upgrade the turbos and have power all the time.

[Abacus38]

I've ran nitrous before on my Honda but we had hondata which allows the ecu to fire the nitrous, pull timing, and add fuel. It also had window switch built in. My roommate has shop and all they do is LSX nitrous builds. It'll be cool to see this motor on a dual stage setup. 200 shot first stage and then a second stage 100 shot. You'll make as much power as the single turbo guys at a 1/10 of the cost. The only problem would be tuning it. You'll also need to run a direct port wet setup to avoid pooling(which leads to nitrous backfire.

[Sticky]

200 shot first stage and then a second stage 100 shot. You'll make as much power as the single turbo guys at a 1/10 of the cost

For 1/1000 of the time.

But I agree it would be cool to see someone take nitrous further.

Go ahead man run a dry shot and go from there. Just don't get greedy. Log it and do it right.

[Abacus38]

Most definitely baby steps. She's my daily lol