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Drivetrain Alta AP Tuned before & after OBX Catless DP results

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Old Sep 23, 2010 | 08:39 PM
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Alta AP Tuned before & after OBX Catless DP results

With my Accessport I'm able to record 1/4 and 0-60. Not sure how accurate it is but here are my results. Fist runs were last night. Stock downpipe. Traction control off in Sport Mode. Best of about 5 runs. Lots of tire spin. Hard to launch.






I added a OBX Catless DP today running the same map as last night. It's quite a bit louder now and more of a raspy exhaust note. I think it sounds mean. No drone on the highway or cruising. I kept the middle resonator. I didnt feel like messing with the install so I too it to a local Import tuning shop that specializes on Honda/Acura. Took them about 2 hours and only cost me $125. Well worth it to me. They did a good job and no exhaust leaks. Here are my results tonight. Nothing but a $150 catless dp was added. Same flat deserted road and 84 degrees at 9pm. Best of 3 1/4 mile runs I did tonight.





best 0-60 time tonight after a half dozen runs. I cant get the tires to hook up at all. I changed my shift points on this run.



I dont know if these times are good for a MCS or not. I've only had my car a month and I dont know much about MINI's. Looks like the dp made a pretty big difference. Should be even better when I send Jeff at Alta my data logs. I bet he can get a few more ponies out of my car now. I was worried about the cheapo OBX dp but I'm on a budget. I just bought a Alta Accessport, H&R Springs and a lot of other stuff for my car the past 3 weeks. I would love to have a true turbo cack exhaust but $1500 is out of my range right now. The OBX along with my JCW exhaust sounds great and I'm very happy with the results.
 
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Old Sep 23, 2010 | 08:44 PM
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How does the AP calculate this data?

Where were you shifting on the 5.5sec run?
 
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Old Sep 23, 2010 | 08:47 PM
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That 0-60 run in 5.5 is screaming fast. I wonder if it is accurate.
 
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Old Sep 23, 2010 | 08:59 PM
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Originally Posted by ThumperMCS
How does the AP calculate this data?

Where were you shifting on the 5.5sec run?
I would like to know that too. I was shifting at 7k launching about 2500-3000 and spinning the hell out of my tires in first. FWD cars are not good for drag racing. With more practice and another tune I will drop those times some more. I live about 10 min away from one of the best 1/8th mile drag strips around and an hour away from Texas Motorplex, a terrific 1/4 mile track. I will go to track this weekend and see how accurate the AP is. I will have it plugged in on my runs and we can compare that to my time slips.

My 06 WRX with a AP and catless exhaust ran a best 60 ft time of 1.6 and 8.10 in the 8th mile. I know, two totally different cars but 'm using that to gauge how quick my MINI is. Even with AWD my WRX spun the tires for about 15 ft.
 
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Old Sep 23, 2010 | 09:06 PM
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One thing I am concerned is the downpipe hangs a little low. I'm dropped on H7R springs and I'm afraid I'm going to scrape. I will try and get a pic of what I'm talking about.
 
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Old Sep 23, 2010 | 10:25 PM
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0-60 is kind of a pointless piece of data on a high-torque FWD car...but you should be able to get into the 13's at the 1/4

And it will be interesting to see the corresponding trap speeds as well.
 
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Old Sep 23, 2010 | 11:39 PM
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Accessport calculations

I tried exporting datalogs to excel and integrating the speed vs. time to get a 1/4-mile time. It seemed reasonable. This new function must be doing the same thing. I haven't seen this function on my AP. Are your beta-testing it? Assuming I'm right about the calculation method, wheelspin at launch could introduce a slight error for the 1/4-mile time since the AP will think you've gone some added distance while the wheels were just spinning(assuming the speedo is based on front wheel speed). The 0-60 time should be accurate if it starts the clock at the onset of wheelspin. I have noticed, however that the speed displayed on my GPS is slightly slower than the car's speedo. With the standard 17" runflats my speedo would read 80mph when the GPS showed 75.

There's a $10 iphone app called dynolicious that uses the phone's GPS and accelerometers to measure 0-60, 1/4 mile, lateral acceleration and other stuff. It even estimates your horsepower based on the weight of the car. Might be interesting to compare it's measurements to the AP.
 
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Old Sep 23, 2010 | 11:57 PM
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Originally Posted by LASRGUY
I tried exporting datalogs to excel and integrating the speed vs. time to get a 1/4-mile time. It seemed reasonable. This new function must be doing the same thing. I haven't seen this function on my AP. Are your beta-testing it? Assuming I'm right about the calculation method, wheelspin at launch could introduce a slight error for the 1/4-mile time since the AP will think you've gone some added distance while the wheels were just spinning(assuming the speedo is based on front wheel speed). The 0-60 time should be accurate if it starts the clock at the onset of wheelspin. I have noticed, however that the speed displayed on my GPS is slightly slower than the car's speedo. With the standard 17" runflats my speedo would read 80mph when the GPS showed 75.

There's a $10 iphone app called dynolicious that uses the phone's GPS and accelerometers to measure 0-60, 1/4 mile, lateral acceleration and other stuff. It even estimates your horsepower based on the weight of the car. Might be interesting to compare it's measurements to the AP.

This is a new AP I got this week. I had a problem with my old one that I bought the week they went on sale. My old one did not have the performance function this one has. 0-6- and 1/4 miles do not start till the car starts to move forward.
 
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Old Sep 24, 2010 | 12:54 AM
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Originally Posted by LASRGUY
(assuming the speedo is based on front wheel speed)
I don't think it is...the speedo never moves when the car's front wheels are spinning on the dyno
 
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Old Sep 24, 2010 | 06:02 AM
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Originally Posted by ThumperMCS
I don't think it is...the speedo never moves when the car's front wheels are spinning on the dyno
Correct, car speed is calculated by cars ecu through rear wheels iirc.

Also, the GPS is not reading your car speed slower, your car speedo is reading your cars speed faster.

The calibration is a bit off (as with most cars) and the gps is actually more accurate, as a side note gps speed matches with those radar speed check stands on the side of the road, whereas your speedo is always 2-5mph faster, depending on your wheel/tire size etc
 
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Old Sep 24, 2010 | 07:22 AM
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Originally Posted by LASRGUY
There's a $10 iphone app called dynolicious that uses the phone's GPS and accelerometers to measure 0-60, 1/4 mile, lateral acceleration and other stuff. It even estimates your horsepower based on the weight of the car. Might be interesting to compare it's measurements to the AP.
There is also a free Iphone app called PocketDyno that will take these measurements.
 
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Old Sep 24, 2010 | 07:35 AM
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NeverEnuff, is this map still a test for the calculations? or is there a new map/update for the AP?
 
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Old Sep 24, 2010 | 07:55 AM
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I dont have an iPhone anymore. Got tired of AT&T's terrible service and switched to Verizon and have a Blackberry now. I do miss all the iPhone apps though.
 
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Old Sep 24, 2010 | 09:04 AM
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i wonder what 0-60 my factory jcw would run. i also am running stage 2 with catless obx.

that 5.5 second run looks great tho, congrats!

edit: not saying that you're a bad driver NeverEnuff, but i know how hard it is to launch these cars normally with the tires somewhat gripping. But what I am really wondering is what 0-60 our cars would run and the potential of our cars when driven by a professional that knows how to tame a FWD beast.
 

Last edited by dj.papazian; Sep 24, 2010 at 09:25 AM.
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Old Sep 24, 2010 | 06:40 PM
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As cool as that it, I like the old fashioned, take it to the dragstrip for a real 1/4 mile pass. Run what ya brung.
 
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Old Sep 24, 2010 | 07:06 PM
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Originally Posted by Arnel
As cool as that it, I like the old fashioned, take it to the dragstrip for a real 1/4 mile pass. Run what ya brung.


Can't wait to get mine out to the 1/4, now that the weather is getting to a bearable temperature here in the desert

And yes I know MINI's aren't build for the drag strip....but it's still fun to see what it'll do
 
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Old Sep 25, 2010 | 07:14 AM
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keep in mind too, this is what i explain to people talking 0-60 on our cars.
from the factory, an S does i believe 58 max in 2nd gear, so when they rate a 0-60 time for the car of 6.7 sec,they are shifting to 3rd to obtain that 60mph speed. Thus, the shift time and getting back on boost can easily add an extra .5 seconds. I know many people on this board have used different accelerometers and gotten 6 seconds stock, i've been able to obtain a 5.6 on mine, but like others say, its a pretty useless number.
I haven't run a 1/4 mile after my RMW tune, but stock w/ bolt ons I was able to achieve 14.9. I'd like to hit low 14's eventually, a high 13 would be a reach without some additional power mods.
 
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Old Sep 25, 2010 | 03:40 PM
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i have been doing some testing as well. For the most part it seems to be pretty accurate. I tested against my g-tech and my android phone and the difference in times are not big enough to complain for a street test. I would have to say that alta's timing and calculations seem to be very close. The only way to be 100% accurate is to take it to a track. All the street devices have there pros and cons and none of them are exactly on the mark.

I give it the
 
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Old Mar 9, 2011 | 01:41 PM
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Originally Posted by NeverEnuff
With my Accessport I'm able to record 1/4 and 0-60. Not sure how accurate it is but here are my results. Fist runs were last night. Stock downpipe. Traction control off in Sport Mode. Best of about 5 runs. Lots of tire spin. Hard to launch.






I added a OBX Catless DP today running the same map as last night. It's quite a bit louder now and more of a raspy exhaust note. I think it sounds mean. No drone on the highway or cruising. I kept the middle resonator. I didnt feel like messing with the install so I too it to a local Import tuning shop that specializes on Honda/Acura. Took them about 2 hours and only cost me $125. Well worth it to me. They did a good job and no exhaust leaks. Here are my results tonight. Nothing but a $150 catless dp was added. Same flat deserted road and 84 degrees at 9pm. Best of 3 1/4 mile runs I did tonight.





best 0-60 time tonight after a half dozen runs. I cant get the tires to hook up at all. I changed my shift points on this run.



I dont know if these times are good for a MCS or not. I've only had my car a month and I dont know much about MINI's. Looks like the dp made a pretty big difference. Should be even better when I send Jeff at Alta my data logs. I bet he can get a few more ponies out of my car now. I was worried about the cheapo OBX dp but I'm on a budget. I just bought a Alta Accessport, H&R Springs and a lot of other stuff for my car the past 3 weeks. I would love to have a true turbo cack exhaust but $1500 is out of my range right now. The OBX along with my JCW exhaust sounds great and I'm very happy with the results.
what stage map ar you running with the down pipe?
 
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