I had time to install my kit finally yesterday. Running good. Hope to get dyno number tomorrow. I took the lazy way out and tapped the outlet of the intercooler instead of the runners. It should be easier to change nozzels too. I am not expecting much hp for the dyno, just want to keep the 19% in Az.

 

What did you do? Did you install a water injection system? Or????

 

Who's sytem did you install? Where did you place the nozzle? Are you using a Mix with water? If so what percent? Thanks!

 

Comes on at 10psi boost...50/50...no dyno number...sorry

 

I am on my mac right now so I can post the dyno runs, I think. But I am like wtf. Either there wideband was messed up or I am running super lean. I don't even want to drive it now. will post soon.

 

this was my first two runs. dont know whats up with the hp and torque numbers, are they reversed? and it is super lean from 2500 to 4500. wtf?
i thought that the car ran out in the top of the rpm's? both of the runs were without the methanol.

 

then it got worse after that. i had one more run after the first two with about the same outcome. then these three. the air/fuel is just a straight line. the guys at the dyno did think it was the wideband and insisted that my car was just running lean. but i would have to say i have never seen an a/f like this. the first two were with the methanol injecting, and the last was without.

 

Uh?? Isn't that running rich??
As far as I know 10:1 is pretty rich

 

10:1 is rich, but 14.8 for 2500-4500 is lean, too lean.

 

How's that?
14.7:1 is the ideal ratio of air to fuel.

I'm pretty sure I've seen a number of maps very similar to yours.

Anyone have some links??

Edit:

Found a couple old threads. Looks like 11-13:1 is common at 4500 rpm but all were running 14.x:1 at 2500



BTW. Running at 14.7:1 is not "running on the edge". Richer is cooler is just an easy way of managing chamber temps. If you could run cold air all the time the enrichment wouldn't be needed or at least not on the scale the MINI does it. Of course unless you drive in Antarctica that isn't an easy thing to do.

I would be interested in seeing a Cooper A/F map. I'm pretty certain you won't see that dip into the 10:1 realm.

 

14.7 is in perfect conditions. probably very good fuel, and you don't want it running on the edge all the time, due to very high combustion temps, which can do all sorts of nasty things to the pistons/valves/etc. The richer the car runs the colder it runs, and the safer it runs (to a reasonable extent)

10:1 is rich, but i would be concerned if my AFR was in the 14s

 

but what should i do about it? should i go to another dyno? do the obvious and get injectors? i am not sure. lots of people are running around with pulleys and not much else. but the guys at the dyno seem to think i was running too lean to drive in the heat.

 

You mentioned you are running a wideband for A/F. I would verify that the information from the wideband was correct (location, operation, etc). Next I would have the car tested again at another dyno, possibly a Mustang Dyno. There are several goods threads around talking about the "proper" way to dyno a MINI to get consistant and comparable results. Here is one:

Dyno Testing Methods... let's agree!

Hope that helps.

 

sorry, i am not running a wideband. the sniffer on the dyno is what i was referring to.

 

for emissions. Best fuel economy is a bit above 15:1, and best power is right around 12.5:1.

Something is wrong. Get it tested somewhere else that has a wideband. I've NEVER seen a totally flat A/F graph for a mini under WOT!

Matt

 

Sniffers are notorious for being inaccurate. I wouldn't get too wound up about it. If you are really concerned, get it retested somewhere else with a better dyno operator.

 

Richer is lower, man. Leaner is higher. 14.7:1 is 14.7 parts air, 1 part fuel...

 

thx for the added input, i will get it tested next week. i will be kinda mad if i paid good money for a dyno and the number are all wrong. i have went to this shop before and have always been very happy with they're work.

 

I've heard of others using methanol injection and losing power, so it doesn't shock me that it seems like you did. Perhaps too much in your mixture? I've heard that it's very hard to calibrate the jet size and achieve atomization to achieve the proper mixture. Ask M7, because they were working on this, too, but I believe d/c'ed work because it was losing them power... good luck!

 

It shouldn't cost too much, then the 02 sensor can be mounted where it should be.

Matt

 

i am not running methanol to gain hp. i am running a 19% pulley in arizona. i am just trying to keep the knock sensor from throwing timing and loosing the hp i already have.

 

Exactly right. I understand you , but the hope of maintaining advanced timing is to keep making power....and methanol can sometimes help you do that....but others have tried this on the mini and lost power. Somehow, the injection has ended up choking the power stroke... Just thought I'd let ya know. Seriously, ask M7...they did this, and I have never asked specifically what happened, but it didn't work and they lost some power.