Nissan 370Z Forum

Nissan 370Z Forum (http://www.the370z.com/)
-   Engine & Drivetrain (http://www.the370z.com/engine-drivetrain/)
-   -   Question about tuning and nitrous. (http://www.the370z.com/engine-drivetrain/5693-question-about-tuning-nitrous.html)

Solus 06-18-2009 02:08 AM

Question about tuning and nitrous.
 
Lets say someone wanted to get the whole bolt on setup (I/H/E, hfc or test pipes, pulleys, short throw) and an oil cooler and short throw. But then wanted to add.. lets say a 50 or 100 shot to it. Then have it tuned. After the tune.. if you take the bottle off how bad would it F*** your setup?

One_Quick_Z 06-18-2009 03:03 AM

Not bad at all if you went with the osiris uprev tune becuase you can get multiple maps and switch them Via cruise control switches


If you went with another tune/reflash yes you would want to get it retuned for optimum performance.


DAN

Solus 06-18-2009 03:12 AM

I dont think I am conveying what I am getting at. If I get it tuned to run on the nitrous.. then take the bottle off.. is it going to mess it up or cause power problems?

turbo8765 06-18-2009 08:18 AM

You would lose a good bit of power if you ran a nitrous tune with no nitrous. Nitrous raises cylinder pressure significantly requiring a decrease in timing. The more nitrous the more you need to retard the timing. If you ran with no nitrous and your timing retarded there would be a noticeable decrease in power.

The fix for this is to have a device that retards the timing when you spray the nitrous. Don't know of a specific device compatible with the 370, but I'm sure you can find something.

kannibul 06-18-2009 08:46 AM

With an 11:1 compression, running nitrous, IMO, would be suicide for the engine.

I dunno...

turbo8765 06-18-2009 09:53 AM

Factory compression ratios have been creaping up over the last ten years. All along the way, people have said that you won't be able to use nitrous or forced induction with the higher ratios but they always do.

I don't know if this motor will handle nitrous or not, but the compression ratio alone dosen't eliminate that capability.

kannibul 06-18-2009 09:58 AM

Quote:

Originally Posted by turbo8765 (Post 93897)
Factory compression ratios have been creaping up over the last ten years. All along the way, people have said that you won't be able to use nitrous or forced induction with the higher ratios but they always do.

I don't know if this motor will handle nitrous or not, but the compression ratio alone dosen't eliminate that capability.

I dunno, I guess I don't see the need, or that the risk outweights the benefit.

I mean, I enjoy performance, but, I've heard of too many people having problems with nitrous, not including having their cars impounded...

MightyBobo 06-18-2009 10:10 AM

Quote:

Originally Posted by kannibul (Post 93899)
I dunno, I guess I don't see the need, or that the risk outweights the benefit.

I mean, I enjoy performance, but, I've heard of too many people having problems with nitrous, not including having their cars impounded...

Nitrous can be run extremely safely as long as its done properly.

Solus 06-18-2009 01:21 PM

^^ what he said. I know a lot of people are pretty anti nitrous but from what I have read this engine should be able to hold a 50-75 shot just fine.. maybe 100. I am honestly not that concerned with the risk, because as bobo said it can be run quite safely. I just need to see about how to set it up so I can sometimes run it and other times not.

One_Quick_Z 06-18-2009 02:26 PM

I was having a Zex Kit installed on my 350Z and then went a different route and bought the 370Z Now I have a brand new kit just sitting in the box it has everything to run it safe window switch/purge/ blowdown tube pressure gauges/ switch pannel bottle heater/ Everything you would ever need and I never got the install finished at GRD in Villapark IL lol



DAN

semtex 06-18-2009 04:40 PM

Quote:

Originally Posted by Solus (Post 94055)
^^ what he said. I know a lot of people are pretty anti nitrous but from what I have read this engine should be able to hold a 50-75 shot just fine.. maybe 100. I am honestly not that concerned with the risk, because as bobo said it can be run quite safely. I just need to see about how to set it up so I can sometimes run it and other times not.

Solus, I used to run nitrous in my Maxima. We tuned it for when the nitrous was not in use. When the nitrous kicks in, the ECU is supposed to automatically retard the timing (i.e., no tune needed to retard the timing). Could further gains have been attained while nitrous was on with a 'nitrous-on' ECU map? Maybe. But given how infrequently the nitrous was on, relative to when it was off, it just wasn't worth the hassle. Plus, it was plenty quick enough when the nitrous kicked in. So, FWIW, that's how I did it on my Maxima, and it ran both reliably as well as with good results. Hope that helps.

Solus 06-18-2009 05:02 PM

Semtex- Thanks bro, I was under the impression it would have to be tuned for the nitrous... hmmm I think i have a plan now lol. Just have to see how much it is to set it up

bdanna 06-19-2009 07:35 AM

Most typically retard timing 1-1.5 degrees for every 50 hp increase you plan on running (assuming you are running a wet system) with nitrous. That's the only tuning change you would need if you went with nitrous. If you took the bottle out, your car will still run fine, but you'd be leaving a little bit of hp on the table since your timing is retarded with the new tune compared to the stock tune. Maybe 10 hp or so you'd be giving up for a 50 shot and up to 15-20 hp for a 100 shot. Driveability would not be impacted at all.

Like others have said, nitrous is safe if done right.

K20A2_S 06-19-2009 09:19 AM

Quote:

Originally Posted by kannibul (Post 93833)
With an 11:1 compression, running nitrous, IMO, would be suicide for the engine.

I dunno...

For the uneducated in Nitrous yes.

Ask the guys over @ CLUB RSX running a supercharer+nitrous on their 11.0 compression K20's..............it's all in the tuning.......even though that's a MAP engine, it's the same concept....

Colder plugs, retard timing, and if the tuning device has it, fail safe features for lean cuts and things of that sort.

kannibul 06-19-2009 10:23 AM

Quote:

Originally Posted by K20A2_S (Post 94606)
For the uneducated in Nitrous yes.

Ask the guys over @ CLUB RSX running a supercharer+nitrous on their 11.0 compression K20's..............it's all in the tuning.......even though that's a MAP engine, it's the same concept....

Colder plugs, retard timing, and if the tuning device has it, fail safe features for lean cuts and things of that sort.

Admittadly, I am uneducated w/ nitrous. I've just seen too many vids where someone blows their engine. :)


All times are GMT -5. The time now is 09:31 AM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2