2.5s CVT, Adding nitrous

[ReviT]

So i'm not getting any reply's on teh other part of the forum so im posting here. I want to nitrous my 2.5s CVT. Can the transmission hold onto all that additional power? It going to be a wet 50 shot. Also the intake is plastic on the 2.5 so wondering if that would affect it also. thanks in advance for helping!

[cuzzbubba420]

Just give it a try and then let us know!! It's hard to say cus I don't think anyone on this forum has tried it as of yet. Give it a try!

[vballer22]

The 3.5 is better suited for nitrous because it has a stronger frame, internals and other supports, but as for the 2.5 I would say just try it. try working your way up to a 50 shot, that sounds a little extreme for the 2.5. as much as we all love our 2.5's, just remember that its a family sedan in a sportscar body, it's not really designed to be abused. But if you do this then youll probably have everyones admiration here. To my knowledge it hasn't been done yet, you'd be the first. just remember stay off the roads with it.

cant help throwing this in:

[ReviT]

The 3.5 is better suited for nitrous because it has a stronger frame, internals and other supports, but as for the 2.5 I would say just try it. try working your way up to a 50 shot, that sounds a little extreme for the 2.5. as much as we all love our 2.5's, just remember that its a family sedan in a sportscar body, it's not really designed to be abused. But if you do this then youll probably have everyones admiration here. To my knowledge it hasn't been done yet, you'd be the first. just remember stay off the roads with it.

cant help throwing this in:

Would a turbo make it less of a ricer? cause nitrous is 1/4 the price for the same performance increase.

[dldjros69]

Nitrous isnt a constant thing.

Get the turbo, it seems safer, and wont hurt your car as fast.

[adidas2go]

I dont think he meant the smiley in a "ricer" manner. I think he was just using it as a speed sign.

Also the intake is plastic on the 2.5 so wondering if that would affect it also. thanks in advance for helping!

If you are looking at a wet shots of nitrous, it doesn't connect to the air intake at all. Wet nitrous oxide shots have fuel in them. This explains the usage of the word "wet". The N20 is mixed together with fuel and a fogger injects this mixture directly into the throttle body. However I would be very careful. Wet nitrous injection kits can cause puddles of fuel to get stuck in the intake manifold, and cause severe backfire conditions.

If your looking at the intake N2O its going to be a dry shot

[ReviT]

I dont think he meant the smiley in a "ricer" manner. I think he was just using it as a speed sign.

If you are looking at a wet shots of nitrous, it doesn't connect to the air intake at all. Wet nitrous oxide shots have fuel in them. This explains the usage of the word "wet". The N20 is mixed together with fuel and a fogger injects this mixture directly into the throttle body. However I would be very careful. Wet nitrous injection kits can cause puddles of fuel to get stuck in the intake manifold, and cause severe backfire conditions.

If your looking at the intake N2O its going to be a dry shot

It will be injected directly to the throttle body.. And it will put less wear on the car than a turbo would because it wont be running 24/7. i was just wondering addidas if u think the 2.5s could handle that shot?

[adidas2go]

you'll be fine with a dry 50 shot. The qr25 sentra's are getting away with it so I don't see why not. I wouldnt go any higher unless you sleeve the block and start working on internals. Also tuning is a plus with N2O, but with a 50 shot, its really not a requirement. All nitrous is bad for your engine, unless built, so take into consideration that murphys law still exists. Think carefully as to what you have as a backup, and resources, incase your motor does decide to take a sh*t. Good luck with the install.

[vballer22]

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you'll be fine with a dry 50 shot. The qr25 sentra's are getting away with it so I don't see why not. I wouldnt go any higher unless you sleeve the block and start working on internals.

The ricer smiley was just a joke. Anytime I hear nitrous I can't help but think about when I was still in high school and all the bro's and future fratboys were obsessed with their civics thanks to the fast and the furious

[vballer22]

Hey Adidas I like the new photoshopped sig a lot. Better luck next year with hot import nights.

[ReviT]

you'll be fine with a dry 50 shot. The qr25 sentra's are getting away with it so I don't see why not. I wouldnt go any higher unless you sleeve the block and start working on internals. Also tuning is a plus with N2O, but with a 50 shot, its really not a requirement. All nitrous is bad for your engine, unless built, so take into consideration that murphys law still exists. Think carefully as to what you have as a backup, and resources, incase your motor does decide to take a sh*t. Good luck with the install.

thanks alot adidas just wanted your opinion. So im definately going to do it just trying to pull the cash together right now.

[leifab]

Coming from a previous qr25 sentra owner....one thing you might have to take into consideration..is that with the sentras had no return fuel line. Most wet systems require this which made wet systems on the sentras a PITA. Dry is definitely the way to go...also note that because it is dry...a 50 shot...is more like 35 actual hp. I'm not sure if they've made any significant upgrades to the internals of the 2.5 engines, but my 04 2.5 had pencil thin piston rods. Which is why all the turbo'd guys couldnt "reliably" go more than about 8lbs of boost (which is equiv to about a 100 shot of dry nitrous) without having to worry about snapping the rods in half. Also you'll have to keep in mind about timing retarding....most everything you'll read will say about 1-2 degrees for every 50hp.

[ReviT]

Coming from a previous qr25 sentra owner....one thing you might have to take into consideration..is that with the sentras had no return fuel line. Most wet systems require this which made wet systems on the sentras a PITA. Dry is definitely the way to go...also note that because it is dry...a 50 shot...is more like 35 actual hp. I'm not sure if they've made any significant upgrades to the internals of the 2.5 engines, but my 04 2.5 had pencil thin piston rods. Which is why all the turbo'd guys couldnt "reliably" go more than about 8lbs of boost (which is equiv to about a 100 shot of dry nitrous) without having to worry about snapping the rods in half. Also you'll have to keep in mind about timing retarding....most everything you'll read will say about 1-2 degrees for every 50hp.

Thanks alot for the info. The guy that im having do my work has alot of experience with nitrous. We are still working out the kinks in the car. He has already figured out the timing changes he has to make with the car. Just mostly wanted to make sure the CVT can handle the sudden HP increase.

[alphapig]

Stillen has been reviewing the issue of the CVT handling increased power via a turbo, concluding that it could.

Since you will be adding a 50 shot max, the HP gain shouldn't be too big, sudden or not. All speculation though, I'm sure the guy who is setting it up for you will take everything into consideration.

[adidas2go]

Stillen has been reviewing the issue of the CVT handling increased power via a turbo, concluding that it could.

Since you will be adding a 50 shot max, the HP gain shouldn't be too big, sudden or not. All speculation though, I'm sure the guy who is setting it up for you will take everything into consideration.

Yup, the CVT issue was brought to the attention of highly respected engineers at Nissan, that STILLEN would be working on forced induction. The engineers confirmed the CVT could handle in the 380+- hp range.

[ReviT]

i

Yup, the CVT issue was brought to the attention of highly respected engineers at Nissan, that STILLEN would be working on forced induction. The engineers confirmed the CVT could handle in the 380+- hp range.

It def. wont be that high till i supercharge it with nitrous and a header. but new internals first