FAQ: Nitrous - Everything You Wanted To Know - But Were Afraid To Ask

[mjr5150]

Thanks for the heads -up... I was thinking about that too . I'll check with either Joshua/HHP or at heat performance to make sure .

Originally Posted by IGOTTASRT8

Be careful - that B&G flash probably has more timing in it - a no no with nitrous.

[mjr5150]

Thanks Bo . Nice times !!! I like it when you emerge from your rock... Hope it happens more often..... -Mike .

Originally Posted by Bo'sRT

While I always run race gas at the track, I've run about a dozen bottles through my MSRT8 with the B&G stage II installed. No issues. 11.99 @ 117.4 so far.

--Bo

[Moose]

Originally Posted by artichoke

Unless the mixture is injected directly at the intake valve, it would seem to risk the same problem as GSM's superchargers have had with the intake manifold. Is that how it's done on our cars?

Wow, thanks a lot for the props, guys! I thought it would be a good start for someone coming on looking for answers and we could link them to this.

artichoke, it would seem that way, but there is a major difference as no cases of blown or even hurt engines with nos to date on an LX Hemi. That even goes as there are some that are not obeying the nos rules of engagement, lol. But it's true, nos LX Hemi problems, 0...and supercharged LX Hemi problems, more than anyone really knows. Not bashing supercharged whatsoever, just seems supercharging, at this point, does not work well on LX Hemi's. Although I have noticed members that are a good wrench do pretty well with keeping the supercharger systems going strong.

I'm sure there will be a member that tweaks the nos system a little too far and we'll lose an engine. After that the skeptics will come running out with their hair on fire. But for now, we're kicking a$$ and taking names.

I've attached a photo of an old photo that deplicts the general set up that Hal and myself are currently using. The new and improved set up is the same, but with a polished aluminum nos ring that fits and looks awesome.

The kits have been done really nice by AZ Power and Sound (a site sponsor here).

Moose.

[Bo'sRT]

Originally Posted by artichoke

Unless the mixture is injected directly at the intake valve, it would seem to risk the same problem as GSM's superchargers have had with the intake manifold. Is that how it's done on our cars?

Yes and No.

I would say anything over a 100 shot should probably be used with a direct port system (IMO)......

The big difference in the SC fueling vs. nitrous fueling is actually pretty simple..... with the aux injectors, you are spraying fuel with an injector at roughly 50psi.......not a bad deal, but coupled with the design of our intakes, there have been issues with uneven fuel mixtures in the front cylinders. With the nitrous, you are spraying a mixture of fuel and nitrous at about 1000psi..... the foggers seem to do a much better job of vaproizing the mixture, FWIW.

And Moose...... there has been one casualty with nitrous....

http://www.lxforums.com/board/showthread.php?t=46725

--Bo

[Moose]

Let me post the latest here as it seems it was a result of improper installation or the manufacturer. The below post is from LX forums and it seems the product came on when it was not supposed to. On one hand it was suggested that it was an installation problem and on the other hand it is suggested it was a manufacturer problem.

I actually wish it wasn't presenting like this.

I too have been working with Frank..........now I feel we have a real nice relationship.

This has NOTHING to do with notrous really, rather a classic case of not routing or setting up a system correctly and following ZEX blindly.

This is not his FAULT rather a clear case of trusting a manufacturer rather than trusting what you know.

I wrote my NITROUS 101 artical after this had happen, and I warn against this crap.......

This in no way should stop people from feeling good about nitrous rather teach people to listen to those that have been doing this a long time.

I've been ridiculed as a "NITROUS KNOW IT ALL"............or maybe just a "KNOW IT ALL".

Thats not the case.............I've just been tooling on cars for a long time and have heard about every story you can imagine.

[HalV48]

The stock SRT8 PCM pulls timing to 19 degree at WOT. Dave,at B&G, said the Stage II is 22 to 23 degrees at WOT. and no one has had any issue with N2O, nor should they have any. I have had no issues that I'm aware of. I ran about 3 gallons on 109 octance with about a 1/4 tank of 91 octane and ran a 122.003 with a DA of 1500.

[Bo'sRT]

Originally Posted by HalV48

The stock SRT8 PCM pulls timing to 19 degree at WOT. Dave,at B&G, said the Stage II is 22 to 23 degrees at WOT. and no one has had any issue with N2O, nor should they have any. I have had no issues that I'm aware of. I ran about 3 gallons on 109 octance with about a 1/4 tank of 91 octane and ran a 122.003 with a DA of 1500.

The 122 mph runs are awesome...... but how about factoring that DA again based on an 80-100 degree drop in air temps (which is what your car performed in)!

I know.... I'm lucky to be right at sea level..... and have the SUPER cold air intake as well!

--Bo

[HalV48]

Originally Posted by Bo'sRT

The 122 mph runs are awesome...... but how about factoring that DA again based on an 80-100 degree drop in air temps (which is what your car performed in)!

I know.... I'm lucky to be right at sea level..... and have the SUPER cold air intake as well!

--Bo

Our track altitude in 1240'. So a DA of 1500 is about as good as it gets here.

I'm not factoring anything with DA. I'm just showing that's what it was when I ran the straight up 122.03. I don't know, my 122 could be faster or slower than Udluuz's 122.48 at DA1000, or JH's 124, I don't know his DA, at the same track. I'm going to run at Firebird on the 15th. I think a 125 MPH is doable with current setup. 122 shows the HP is there, and have 1 of the 3 fastest cars in the country right now. Just need to get everything working at the same time. My mods cost way less too.
I still have Quaife, custom converter, heads & intake for sure in the near future. Maybe TCM, MAF conversion, and working on tuning.

I'm excited. I see 10's in quite a few peoples futures, and I should be one of them. Hopefully the half shaft issue is resolved in the near future, and we don't have another weak leak in our future Bo. I'd like to try one of those negative 1500 to1800 DA tracks when I'm done.

I'll get a report on how my half shafts are holding up with the Quaife install in the next week. I only have about 10 burnouts of which only 2 where roastings.

[Need4Speed06]

Originally Posted by HalV48

Our track altitude in 1240'. So a DA of 1500 is about as good as it gets here.

I'm not factoring anything with DA. I'm just showing that's what it was when I ran the straight up 122.03. I don't know, my 122 could be faster or slower than Udluuz's 122.48 at DA1000, or JH's 124, I don't know his DA, at the same track. I'm going to run at Firebird on the 15th. I think a 125 MPH is doable with current setup. 122 shows the HP is there, and have 1 of the 3 fastest cars in the country right now. Just need to get everything working at the same time. My mods cost way less too.
I still have Quaife, custom converter, heads & intake for sure in the near future. Maybe TCM, MAF conversion, and working on tuning.

I'm excited. I see 10's in quite a few peoples futures, and I should be one of them. Hopefully the half shaft issue is resolved in the near future, and we don't have another weak leak in our future Bo. I'd like to try one of those negative 1500 to1800 DA tracks when I'm done.

I'll get a report on how my half shafts are holding up with the Quaife install in the next week. I only have about 10 burnouts of which only 2 where roastings.

Looking forward to your progress! What elevation is the Firebird track at? I'm curious if you'll back-up those sick MPH's. Your car seems to be running 5-6 mph faster then any other car with similar mods. Do you know the jet sizes your using by any chance? I have no experience with running at altitude so I'm curious to see how it works out for you....Keep us posted!

[StealthAuto]

Excellent post!!! This is definitely a must-read for people interested in nitrous.

-Aaron