Anyone have any input on the use of Nitrous Oxide on the R56 direct injection motor?

No, this is not a joke. I was wondering what the possibilities of a 50hp shot would be. But I dont want to run lean and am wondering if the ECU would adjust fuel. Just looking for something fun for the drag strip.

 

I don't have a mini, but I can say I've put more NOS through a dodge viper than anyone on the planet, and have experience with forced induction on vipers with nos as well. introducing a small shot should not be a problem. intake charge temperatures will drop dramatically as soon as the NOS enters. The stuff boils at like -132 degrees.
you could put a nozzle in between the turbo and intake....950lbs of bottle pressure will easily overcome the boost your making. You will need some additional fuel. if there are no options for getting the ECU to handle it with the stock injectors then you have no choice but turn that nozzle into a "wet" nozzle and add additional fuel there. fuel pressure on that line to produce the expected results with a given size jet when operating in a boosted environment will have to be calculated. There are calculators all over the web to help you with the math. Just place your nozzle in a easy place to get to start conservatively and put a wide-band O2 clamped to the tail pipe and you'll be fine. Hope that helps, I know its nerve racking to put spray on a car no ones spraying yet. Same thing happen with the vipers back in 96. Now, my driver has a 500 shot on it with countless bottle used and on pump gas. sounds like a lot, but with a V10 its only asking 50 extra Hp from each cylinder. hope that helps some.

 

Thanks for the input. I was thinking a small shot so I could keep the system dry. Your suggestion of the wideband O2 sensor on a dyno might be the safest way to approach this one. Kinda intrested how the ECU adds fuel.

 

you're a ballsy guy, mike g, you're a ballsy guy.

 

+1. That said I'm very interested to see your results.

Best of luck!

 

Since you got the unchip, if there is a local programer you can have him set one of the maps to activate the nitrous and add fuel for a dry shot... The only way the ecu will add fuel at wot would have to be with the fogger before the maf.

 

I was going to take this issue up with Jeff at ALTA. SInce I have the ALTA ECU perhaps I can have one switch for N20 and the other without. I know Nitrous does not like advanced timing. I think if done at a safe and consertive level it could make for some fun on the track.

 

Cant run wet though... Might be semi easy to do actually, use the unichip to hit the solenoid at WOT and above like 3000rpm or something. Might work out well. Jeff would be the man for the tuning.

 

Does mini use a wideband oxygen sensor, or a standard oxygen sensor? If it has a wideband it might add fuel on its own!

 

Wideband (5 wire) but I'd be worried the car would go lean in a hurry and the car would freak out and cut throttle, and ruin your fun. Had these problems with dbw vws. I think the ecu only will compensate a certain % then throw you into limp mode.

 

...yikes....

 

Honestly I wouldn't even waste my time with nos on a freakin stock turbo mini, the turbo is what is holding the car back, all you're going to have is a wrong wheel drive car with tons of torque down low and not near as much of a gain up top since the turbo can only flow so much. Now if you have like a 3071/3076 or something and you need somthing to help it spool, then throw on a small shot to get off the line.

 

Are you referring to a stock turbo? Cause my MINI is far from stock. Its actually probably one of the fastest R56's currently out there.

 

idk.. There is always a bigger fish. lol

 

True. But until recently no one had the ECU done. I am excited to see other people mod and make theirs faster. I am pretty content where mine is currently. Nice mix of drivability and performance.

 

I think the key to the nitrous is tuning your unichip to back off the timing on a nitrous map, and to have it turn on the nitrous solenoid because I'm sure it gets a TPS signal so you can use it as a window switch. And it probably has some configurable outputs. Nitrous on turbo cars is great, it lowers your charge temps as well as making a little more power, so the turbo isn't spouting hot air. This thread isn't about whether or not you think its a good idea, but how its possible.

 

Well what turbo do you have then? I know your "car" isn't stock, but you still have the crappy stock puke and die turbo unless you're hiding some top secret info. If I said wow that you have one of the fastest R56's, I would be full of it. B/c in the realm of cars out there a mini is still a slow wrong wheel drive car, and there's no point in polishing a turd. I'm not saying they can't be peppy or fun to drive... that's why I have one.

 

Wow, just wow. No comments on that...

 

Why are you so negative? I know its still a MINI Cooper with a 1.6 liter motor. But mine is more than "peppy". Yes I have a couple of mods that are not listed here but still running the stock turbo. I have proven these gains on the track and am very happy with the results.

And I am more than happy to prove it to anyone else who says otherwise.

 

...

 

01cbr929 are you having a bad day. the mini is in its own realm and i think alta will take care of that puke and die turbo you speak of. this forum is about fun and enjoying our cars. not talking like this .

 

Wow, I didn't know I was saying anything about my Evo. Thanks for the info Captain Nut Swinger.

 

I agree they will... and I'm thinking about doing that also, I wasn't trying to start a war... maybe I was putting my 2 cents in where it wasn't wanted. I'm cool with everyone on the forum, but still I'm not backing down on my opinion as far as n2o on a stock turbo mini. Sorry if I ruined everyone's day, I'll try to only contribute good stuff from here on out.

 

Ok, I guess when I said input. I really meant if or how it is to be done. I was not asking if I should do it. There is no doubt that it would help especially in the higher gears. 3 and 4th especially in the 1/4 mile no matter what turbo is on the car.

I just want to figure out if it can be done safely and if so what is the best way to approach it.

I did not need an evaluation of my current setup or "crappy" turbo.

With that being said. Anyone have any constructive or intellegent responses?

 

its cool.