Topic: Nitrous Oxide System 50-75 Shot on a 2.5L Auto with 37"

[dexetr30]

I think the automatic is the issue. Converter slip at idle is robbing all of his torque. Try finding info about a good offroad converter with a lower stall and that thing will crawl like crazy 

This a problem of mine as well. Even on the street the stock converter is mush. I briefly did a search for an after market converter but came up with nothing. 

[Erik]

I ran a 50 shot on my 89 TBI 2.5 for about a month.  i borrowed my friends kit and ran 1 bottle through it.  I was trying to decide if it would be worth the money or not and testing it out in real world crap was the best way to make the decision...

in the mud, AWESOME... got my wheel speed up and cleaned the boggers well.

in BIG rocks, helpful bc i could romp on it and heat the tires enought o really grab the slick rock face.

in SMALL rocks, don't... you'll just break axle shafts if you try to use it to get out of a bind and if you're not in a bind you will just throw rocks... useless.

on the street, helpful i guess.... i didnt intend to use it on the street, but i did a few times.  used it mainly on the highway to pass and it was helpful, but i could have passed without it if i had a little more passing time.  raced my neighbor's '01 2.5 on 35's with 4.88 gearing off the line and spanked that ass.  we ran from 0-50 (speed limit 45).  it felt great to beat him by 2 lenths with big mud tires and a shiny blue bottle :)

overall, bo-yah! it.  i could have gotten the whole kit (wet NOS) for $250 with a 10 lb bottle and decided the money would be better put toward a 350 swap b/c we all know we wouldn't be stuck with the 4 pissed off squirrels if we had a ton of money sitting in the bank and a plethora of LS7 engines at our disposal :)

[chardrc]

ls7 that would be amazing in a jeep

[BlackYJ]

Also I would look at a different tire because my experience with MTRs and a little bit of mud, they are no good, get swampers.  My personal opinion.

However, you keep coming back to the NOS, so go buy the kit, install it and lets us know how it works.

[RoKnAzn]

Also I would look at a different tire because my experience with MTRs and a little bit of mud, they are no good, get swampers.  My personal opinion.

However, you keep coming back to the NOS, so go buy the kit, install it and lets us know how it works.

Tires does great on the Rocks. I dont go mud riding often at all. So there is not need for changing tires just yet..:D I will keep ya'll posted ont he NOS. I just need to get a new Transfer Case first..:D

[Erik]

your gonna blow the top end...

I recommend regearing.. and it be a great idea to bring a chain.... youll ened it for somone to tow you back home after you blew your engine from all teh NOS you used....

hey look, someone doesn't know shit about nitrous!

 



or towing for that matter, lol

 

[damon54]

I don't know S**t about nitrous either, so how about you explain how it works instead of calling someone out like that.

[dexetr30]

Whoa, chill out.

Here's an explanation I got got from here: http://madsci.org/posts/archives/2003-11/1069893695.Eg.r.html

I know how this stuff works but I'm no good at explanations.

Inside an engine, gasoline, along with oxygen that comes in the air intake, produces combustion so the car has power, but only a limited amount of oxygen comes thru the air intake. If you want more power from your car then one of the easiest places to start is by trying to push more air in there and that is what turbochargers and superchargers do: they force more air into the engine and along with more air, more oxygen comes into the engine so a bigger explosion is produced and more power generated. But what if you don't want to buy and expensive turbocharger or supercharger or don't want the hassle of installing them? Well, another option is to buy a NOS system. This system will inject Nitrous Oxide gas into the engine. As I mentioned in the beginning of this message, every Nitrous Oxide molecule contains two Nitrogen and one Oxygen molecule. What happens is that when the molecule enters the engine, it's so hot in there that they separate and the oxygen molecule can help burn more gasoline now that it's all alone. This only happens if it's really hot (like around 570 degrees F) else they won't separate and it won't help burn more gasoline. There is also another benefit of using a NOS System: when Nitrous Oxide comes into the engine, it's at a lower temperature than the air around it. When you cool things down they tend to occupy less space (the freezing of water is one of the only major exceptions to this rule). The Nitrous Oxide coming in to the engine cools down a bit the sorrounding air that same air gets a little bit more compact and that extra space gets fill with a little bit more air and so more is entering the engine. When you add everything up a lot more oxygen exists in the engine and you have a bigger explosion along with the gasoline already in there.

Just for comparison if you have the same amount of Nitrous Oxide in a bottle and in another one you have regular atmosphere air, the Nitrous Oxide bottle will have about 36% of oxygen and the regular atmosphere bottle will have about 23% of oxygen.

[RoKnAzn]

your gonna blow the top end...

I recommend regearing.. and it be a great idea to bring a chain.... youll ened it for somone to tow you back home after you blew your engine from all teh NOS you used....

hey look, someone doesn't know [censored] about nitrous!

 



or towing for that matter, lol

 

LOL...Hey Erik, do u have pics of the install and etc.. when u had the NOS Kit?

Thanks
Anthony

[damon54]

Whoa, chill out.

Here's an explanation I got got from here: http://madsci.org/posts/archives/2003-11/1069893695.Eg.r.html

I know how this stuff works but I'm no good at explanations.

Inside an engine, gasoline, along with oxygen that comes in the air intake, produces combustion so the car has power, but only a limited amount of oxygen comes thru the air intake. If you want more power from your car then one of the easiest places to start is by trying to push more air in there and that is what turbochargers and superchargers do: they force more air into the engine and along with more air, more oxygen comes into the engine so a bigger explosion is produced and more power generated. But what if you don't want to buy and expensive turbocharger or supercharger or don't want the hassle of installing them? Well, another option is to buy a NOS system. This system will inject Nitrous Oxide gas into the engine. As I mentioned in the beginning of this message, every Nitrous Oxide molecule contains two Nitrogen and one Oxygen molecule. What happens is that when the molecule enters the engine, it's so hot in there that they separate and the oxygen molecule can help burn more gasoline now that it's all alone. This only happens if it's really hot (like around 570 degrees F) else they won't separate and it won't help burn more gasoline. There is also another benefit of using a NOS System: when Nitrous Oxide comes into the engine, it's at a lower temperature than the air around it. When you cool things down they tend to occupy less space (the freezing of water is one of the only major exceptions to this rule). The Nitrous Oxide coming in to the engine cools down a bit the sorrounding air that same air gets a little bit more compact and that extra space gets fill with a little bit more air and so more is entering the engine. When you add everything up a lot more oxygen exists in the engine and you have a bigger explosion along with the gasoline already in there.

Just for comparison if you have the same amount of Nitrous Oxide in a bottle and in another one you have regular atmosphere air, the Nitrous Oxide bottle will have about 36% of oxygen and the regular atmosphere bottle will have about 23% of oxygen.

Thanks and my apologies.  I understand the general idea of how NOS creates a bigger explosion, I just am curious what the 2.5 can take.  I read that some of the tuner cars run NOS to pick up the lag from the turbos but it seems like most of those are running forged parts (correct me if I am wrong).  My point on the above post is that if someone posts bad info that you can correct them without trying to make them look stupid (friendly forum and all)

[Bounty Hunter]

The 4.88's work with your 37"s?  Or you say it works fine because that is what you're limited to with the D30?

I'm running 5.38 on 36" TSL's and I wouldn't run any taller of a gear.  5.38 would put your overall final ratio back close to stock with 37" tires.

A 50shot shouldn't hurt your engine, but it's not going to do a thing if you can't get traction to the ground.  Judging from the pics it looks like you often run wet trails, and wet rock.  I'm with the jeeper above, get TSL's and you won't be sorry.  I've never been impressed with over-priced and over-rated MT/R's.

[RoKnAzn]

The 4.88's work with your 37"s?  Or you say it works fine because that is what you're limited to with the D30?

I'm running 5.38 on 36" TSL's and I wouldn't run any taller of a gear.  5.38 would put your overall final ratio back close to stock with 37" tires.

A 50shot shouldn't hurt your engine, but it's not going to do a thing if you can't get traction to the ground.  Judging from the pics it looks like you often run wet trails, and wet rock.  I'm with the jeeper above, get TSL's and you won't be sorry.  I've never been impressed with over-priced and over-rated MT/R's.

Yes, I think 4.88 is too to low for my Jeep. I perfer 4.56 if I could. I dont always run wet trails those are those lucky days that it was wet..:D I paid 185 bucks Each for the MT/R..So its worth it..:D

[jcsanders79]

I don't know if he has an auto or not but 4.88 makes my TJ very touchy in 4Low (amost to much at times) becuase its an auto I don't need as low gearing.

[RoKnAzn]

I don't know if he has an auto or not but 4.88 makes my TJ very touchy in 4Low (amost to much at times) becuase its an auto I don't need as low gearing.

I have an Auto and its very touchy...LOL