BPM Stage 2 - Dyno Results!

[mxa121]

I wanted a tune to turn off the engine light, kill cold start, and improve the power of my M3.

The gains shown are strictly from the tune. All runs include test pipes filter and muffler. This information is to help the forum understand what exactly you get from a tune. Hard information to come by, which is why I made it a point to flash on the dyno for back to back results.




I took the M3 up to a local shop (SoloMotorsports Awesome place) to have it Dyno'd to log before and after gains from the BPM software I recently purchased.
I plan on doing this for all future performance mods. It is unfortunate that I do not have a pure stock baseline.



Car Mods:
-BMC Race Filter
-ACM Test Pipes
-Megan Racing Exhaust

Dyno:
-Mustang Dynamometer
(From what I gather, this particular unit reads about 10% lower than common Dynojets)

Dyno Runs 1 and 2
Stock Software - 240E
Run 1: 332 WHP 257 WTQ
Run 2: 341 WHP 265 WTQ

I then hopped in the car and flashed the BPM software, took about 5 minutes.

Dyno Runs 3 and 4
BPM Software - Stage 2
Run 3: no good data
Run 4: 353 WHP 265 WTQ

Best Runs Compared:
Horsepower
Peak Gain = 12
Avg Gain = 8
Torque
Peak Gain = 0
Avg Gain = 16

IATs were a bit lower on the BPM runs but the numbers are corrected.

Charts:

Run 1 vs Run 4


Run 2 vs Run 4


Run 2 vs Run 4 with IAT, Timing, and AFR overlay


Video Evidence:

[wifesbimmer]

nice write up!!! two thumbs up for the effort!

[X5-User]

Man...the gain is really small. I have read that it can give upto 25hp..in your case it is only 12hp?

[wildwestm3]

My thoughts exactly. That is a lot of money for a 12hp and 0tq gain. Is there another way to turn off the O2 sensors after putting the test pipes on? I have the Dinan CF CAI and filter and the Borla cat back. Wanted to do the test pipes, which will obviously throw a code.

Anyone have before/after dyno runs with UD pullies? What is the best bang for the hp/tq buck? Before someone chimes in with adding a s/c, I've been that route before and want to stay N/A...

[Ezio]

your car is really quiet for being catless.

[Toxic 335]

just test pipes not completely catless, looking at his mod list.

[ilikebmxbikes]

So OP, you Dynod the car immediately after flashing and you only got a single run with the BPM tune that recorded any data?

[italyix]

Originally Posted by ilikebmxbikes

So OP, you Dynod the car immediately after flashing and you only got a single run with the BPM tune that recorded any data?

No time to adjust to new settings. OP, wait a bit then redyno. Car needs time to adjust to new parameters.

[mxa121]

Originally Posted by wildwestm3

My thoughts exactly. That is a lot of money for a 12hp and 0tq gain. Is there another way to turn off the O2 sensors after putting the test pipes on? I have the Dinan CF CAI and filter and the Borla cat back. Wanted to do the test pipes, which will obviously throw a code.
Anyone have before/after dyno runs with UD pullies? What is the best bang for the hp/tq buck? Before someone chimes in with adding a s/c, I've been that route before and want to stay N/A...

Best HP/$ is test pipes. Second may be UD pulleys. Do a search on those, there are some dyno results floating around. Maybe 10 whp there.

Originally Posted by ilikebmxbikes

So OP, you Dynod the car immediately after flashing and you only got a single run with the BPM tune that recorded any data?

Correct, flashed on the dyno. Run 3 did not record, so I ran run 4 which was a "second" run to compare to the stock runs.

Originally Posted by italyix

No time to adjust to new settings. OP, wait a bit then redyno. Car needs time to adjust to new parameters.

From what I understand, the tune will not get 'stronger' as you drive it. The tune is the tune, no adaptation time in regards for maximum output.

[Dave07997S]

I think runs 1 and 2 were with the ACM testpipes and other mods, while runs 3 and 4 were with the tune.


Dave

[mxa121]

Originally Posted by Dave07997S

I think runs 1 and 2 were with the ACM testpipes and other mods, while runs 3 and 4 were with the tune.


Dave

Correct, the dyno only compared tunes, all other mods were constant.

[mxa121]

Originally Posted by Bimmer-M3

Man...the gain is really small. I have read that it can give upto 25hp..in your case it is only 12hp?

Not sure where you saw a 25hp increase on a dyno for a tune only.

Originally Posted by wildwestm3

My thoughts exactly. That is a lot of money for a 12hp and 0tq gain. Is there another way to turn off the O2 sensors after putting the test pipes on? I have the Dinan CF CAI and filter and the Borla cat back. Wanted to do the test pipes, which will obviously throw a code.

You can do a Delete-R which is $300. Or try 02 spacers which are not always effective. Neither of which give any gains/perks whatsoever.

[duk]

It's about right for those mods. congrats!

[Killerfish2012]

Originally Posted by wildwestm3

My thoughts exactly. That is a lot of money for a 12hp and 0tq gain. Is there another way to turn off the O2 sensors after putting the test pipes on? I have the Dinan CF CAI and filter and the Borla cat back. Wanted to do the test pipes, which will obviously throw a code.

Anyone have before/after dyno runs with UD pullies? What is the best bang for the hp/tq buck? Before someone chimes in with adding a s/c, I've been that route before and want to stay N/A...

You can say that again. BPM wants $899 for that! Really wish that open source flash tuning had made it to this platform like it did for the 335I. That'll drop the cost of getting a tune to just $300.

[wildwestm3]

Yea, and the sad fact is that you can't feel hp you feel tq, which there were no gains.. I was really hoping for more gains for almost a grand (when you figure in tax). Any benefits from old school stuff like a cooler thermostat? I'll definitely get the pullies and pipes and figure out how to shut off the codes for the O2 sensors...

[mxa121]

Originally Posted by wildwestm3

Yea, and the sad fact is that you can't feel hp you feel tq, which there were no gains.. I was really hoping for more gains for almost a grand (when you figure in tax). Any benefits from old school stuff like a cooler thermostat? I'll definitely get the pullies and pipes and figure out how to shut off the codes for the O2 sensors...

There was an average of 16 ft lb torque increase across the rpm range.

[Flea7]

People are forgetting that OP's numbers was on a Mustang dyno. I think numbers are inline with others with the same mods where their numbers were on a Dynojet......right?

[Killerfish2012]

Originally Posted by Flea7

People are forgetting that OP's numbers was on a Mustang dyno. I think numbers are inline with others with the same mods where their numbers were on a Dynojet......right?

someone with a different tune got +16whp on a dyno jet, sae correction, with 200 cpsi catted x-pipes.

http://www.m3post.com/forums/showthread.php?t=896939

[Killerfish2012]

Originally Posted by wildwestm3

I'll definitely get the pullies and pipes and figure out how to shut off the codes for the O2 sensors...

A tune is the only way to pass emissions.

[s85e90]

Originally Posted by Flea7

People are forgetting that OP's numbers was on a Mustang dyno. I think numbers are inline with others with the same mods where their numbers were on a Dynojet......right?

Doesn't matter as we're just looking at the gains.


Finally people realizing that these canned tunes are too much $$ for little gains.

[Flea7]

I'll have my MS X pipe along with my BPM stage 2 tune by next week. I dynoed at 330/240 stock on a dynojet.

[Dave07997S]

Originally Posted by wildwestm3

Yea, and the sad fact is that you can't feel hp you feel tq, which there were no gains.. I was really hoping for more gains for almost a grand (when you figure in tax). Any benefits from old school stuff like a cooler thermostat? I'll definitely get the pullies and pipes and figure out how to shut off the codes for the O2 sensors...

There is a torque gain, look at the chart. The non tune dyno had a spike which registered as its peak. When you look at the rest of the curve there is a gain.

Dave