I just had my MCS dynoed at Balanced Performance in Sugar Hill Georgia. http://www.balancedperformance.com. It was dynoed on a DynoJet and I was quite pleased with the results. The weather has been quite good here, around 50F today so the coolness contributed to the good numbers. At this time my car is a base MCS with v.36 ECU and a Pilo Intake with the WebbMotorsports intake modification. We ran the dyno with a closed hood with two fans running. One on the Radiator and the other across the top of the hood to cover the Hood Intake and the air intakes by the windshield. This setup best represents the conditions the car is under while driving on the road. A lot of dynos are done with the hood wide open or the hood closed with no fan, which really doesn't represent the driving conditions the car is under. I am using this baseline for my future mods. I am getting the 15% pulley installed tomorrow at Rspeed. I will let the pulley sit in the car for about 1500 miles to let the ECU adapt and then run another dyno. This will hopefully give true numbers on the affect of the pulley. My max horsepower was 167.8 and torque was 150.8 ft/lbs. I ran three runs all in fourth gear with an average of 166.6hp and 148.4ft/lbs. I have attached my highest run below.

 

From what I've read in pervious posts.... those number fall within the acceptable limits of what people are finding given the (2) mods you mentioned.
I don't personally know enough about the "fan" placement but....it's seems logical.
It seems that if you re-dyno after the new mods (the pulley...etc) and taking into consideration the ECU adatption period...you should get results that are consistant .....
Please let us know what happens :smile:

Peace,
D

 

Just a Pilo intake w/airbox mod? In that case, assuming your numbers are SAE corrected -

 

I agree the numbers look a little high. The only thing that I think can account for it could possibly be the v36 which makes the car feel a little faster. Not sure if it accounts for much peak hp or torque though. The other items may be the cooler air and the fan placement. We tried the dyno without the fan placements and it got lower numbers. I am not one for trying to fix numbers, but I think that the dyno should represent as close to the physical driving conditions as we can. There is a purpose for the hood being closed and the air being directed through the bonnet scoop. So I think all of these things increase the numbers slightly.

The numbers are SAE corrected and they are the base numbers at the wheel, but as you know you cannot correct the affect the colder air has on the intercooler efficiency or the intake. Also everyone here has felt the difference the colder air of winter has made on the performance of their cars. I haven't seen a lot of dynos of MCS in the winter here. Most of the 145-155hp numbers that we have been seeing are from the past two summers. So this may make a difference. I know that a friend of mine with a heavily moddified 300ZX sees a swing of 50hp from our 100degree summers to the dead of winter 30F temperatures.

Horsepower from one car to another is not absolute because of the conditions, dyno and everything else. The main purpose is to get a baseline to measure the deltas between mods, which is key.

 

Kudos for doing a baseline. I predict that your best run post-pulley will be 184 whp. :smile:

 

Yes, those numbers are too high, considering a 12% drivetrain loss, you are getting a baseline of over 187 horsepower at the crank. That intake on a stock car (with no pulley) will give little or no power.

Dynojets are known to give big numbers, and big power deltas from mod-to-mod, but dgszweda1 is spot on with the point that the absolute numbers is less important than to get a good baseline. just be sure that you are testing in like connditions to measure your power deltas. You can find formulas on the web for temperature correction if your next dyno day is at 80 degrees or something. Eric at Helix dynoed my car before and after my 15% pulley, borla and typhoon. He said that the most important thing is to have the same peak intake temperatures during dyno runs. Good luck with your dyno runs.

 

Some of us in Atlanta that already have the Pulley/WebbECU exhaust etc.. are wanting to dyno, whats the cost? where are they located?

Kent

 

Darxar,

You can follow the link above to go to their website. They are only about 5 minutes from the Mall of Georgia. The cost I believe was right around $65 for three runs. They did a good job and the tech knew his stuff. They also do a lot of tuning at the shop also. Not a lot on Minis, but they do have a lot of experience tuning the M45 supercharger.

 

Are you planning to get either the AmD One-Click or the Conforti Shark? I'd be very interested to see some before and after results for the One-Click or more before and after results for the Shark.

 

I am interested in the AmD One-Click, but am hesitant to purchase it without seeing some form of numbers. The only number I have heard is 8hp and no torque figures. Plus I haven't heard any review of the product by any Mini owners. Until I hear something from someone, I probably will hold off on this one. I am also not so interested in the Shark based on the general feedback of the device. Mostly everyone feels some smoothness, but not much power. The dynos so far haven't supported much of a result either. For $50 more the AmD looks on paper to be the better one. Evo really like the feel of the AmD car which was basically a 15% pulley, AmD ECU upgrade and the Miltek exhaust.

At this point I am leaning to the Webb Motorsports Powerchip. This is the only device out there with good numbers and an overwhelming positive feedback from MCS owners (plus Randy's support of the product). I really like the idea of a handheld unit and think that this is the superior form factor for this product, and I am really trying to convince myself of the AmD, but I have to have something more than a single 8hp number that has been thrown out. I want power, not just save a few bucks. I don't expect the AmD to necessarily perform as good as the Powerchip, but if it is close it would be an excellent choice. Anyone else out there bought the One Click?

 

Has any customer posted before and after dynos of Randy's chip? I've seen such plots for the Shark (both RSAmerica and Stratmosphere's plots showed similar, but minor gains) and the Evotech (although the results for the Evotech varied from excellent - Sleepless to very poor - jlm).

 

Andy,

The only dynos that I have seen are the ones from Randy. Also the only numbers I have heard on the Powerchip are from 8hp to 17hp, with the average around 15hp. Some people have said that they have had the dynos, but no actual dynos posted. While Randy is a great guy as he develops these new items, his dynos have to be treated as dynos from a vendor. Obviously Randy is not going to produce a product in which his dynos show a low result.

In the sake of scientific results we need to see more third party independent tests from other MCS owners. That was what made Randy great in the early days when he was testing everything. We will see if my numbers match.

 

(The GIAC chip is coming!...shhhh....)

 

I'm curious how many runs you did, and which run was the best numbers? I'd have thought early runs=better numbers due to less heat???

I got a baseline on my 02 MCS with v.36, and a rogue intake....
temps were cool, and the baseline was hood up, no fans? I think....I know someone squirted the air diverter on the baseline run...

baseline 164hp(at wheels) and 166hp at wheels...I think my first run was the higher one....

then had the alta 15% pulley installed and got 178hp at the wheels...hood closed, no fans...only did one run. (it was very late)

I forget the torque numbers but I gained 14 or 15 torque after pulley.

I'm curious if I might have seen better numbers with repeated runs...I'm not that concerned, I'm very happy with the SOP (seat'o'pants) results, but just wondering--I figured the more runs, the more heat, the more the numbers would go down....

 

Sorry I missed the install at RSpeed, got hung up in a meeting, two people like to ramble on and on, and one of them is my boss, ..

How did it go? got some pic's to share? ScottG and I are having lunch at Fudruckers over by premiter mall on thursday around 11:30 if you or anyone else who can get away it would be nice to meet.

Later, Kent

 

for comparison purposes, it doesn't raeally matter much what the absolute values are. On the other hand, it is extremely questionable to see your car put out 168hp at the wheels with only those mods That would be a 25 hp gain over stock for an intake and exhaust.

my guess is your dyno tech is mesuring at the wheels, automatically correcting for the driveline loss, and reall7y displaying corrected flyheel hp. In which case your numbers are right on for the 30 or so baseline dyno runs I have seen.

 

jmoser,

I did 5 runs total. One run looked bad because the ECU detected knock and it came up with a really bad graph at about 6,000 rpm on. Another run was just done for fun to look at different gears. I ran the three "keepers" in fourth gear. The numbers did go up slightly, but just a small amount. I think there was only about 1.5hp difference among all three but there was almost 5ft/lbs of torque in between. We let the engine for about 15 minutes in between runs. Keeping the hood closed with two fans I think helped a lot. The intercooler was able to function much more effectively in this scenario than either keeping the hood closed with no air or keeping the hood open. The outlet on the intercooler was cool to the touch during the runs.

The values were uncorrected, but I haven't seen too many cold weather dyno's done on the Mini. I know that Cooper Works said that they saw a shift of about 25 or 30hp on the JCW between runs of almost 100F and 20F. So the cool weather outside probably made a difference.

All of us have seen the huge power jumps our Minis have made since winter started. The car is much more powerful now than it was for me in the Hot Atlanta summer of 95F. But in reality the main item that you are shooting for is the delta change. The key is running consistent dynos between mods to eliminate the possibility of fluctuations by external inputs. I expect to get similiar delta numbers for the pulley regardless of my base numbers. I also want to do a run in the dead of summer to see the effects of temperature as well.