Saul_Good

~102K miles
Done in 5th gear
Mods:
K&N drop-in filter
Racing Beat Header
FM high-flow cat & midpipe
Cobalt Muffler
Regular Oct (85oct in Colorado)

I just installed a BP5A Mazdaspeed cam and will redyno soon (at the same place) to hopefully get a decent delta.

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sixshooter

I'm curious what the differences will be between the cams. Let us know. I have a set of them on the shelf, too.

Saul_Good

Definitely! I also ordered a BP5A ecu too, to see if the cam extends the power out to 7500rpm. Luckily someone did some work to find out that it bolts in and works w/o a hitch (we'll see though).

So it'll be:
- Run with delta between my above baseline and BP5A cam.
- Run with BP5A ecu
- Hit the track

I'm doing things I wanted to see, the small incremental changes so I (others) can know what these 'smaller' mods yield.

Depending on my results w/the ECU I may/may not go with some sort of standalone or really good piggyback.

Saul_Good

Kinda disappointing results. BP5A cam with stock ecu then BP5A ecu. The first and second run i got 112hp the following runs were with the BP5 ECU (JDM ECU) where i got 116hp but lower tq and powerband from my baseline run.

Baseline run and mods at top of thread. I also found it odd that the jdm ecu would fuelcut at 7k on the dyno but afterward was easily going to 7500.

Also i was running the jdm ecu prior to dynoing and switched to the usdm unit before making the 5mile drive to the shop. After 2 runs i switched to the jdm ecu. Not sure if hot swapping the ecu's contributed to the loss since it didnt have time to 'learn' prior to being ran.

In short, I didn't gain HP w/the BP5A cam and also have a lower overall powerband from my baseline. The JDM ECU got me back even with my baseline peak HP but also was unable to match and/or exceed my previous baseline powerband.

Discuss. Really disappointed.

sixshooter

I don't know what I was expecting, but that wasn't it. I guess I expected something more dramatic.

Saul_Good

It was dramatic but in a different sense

Redcap

Well that's a bummer. Long shot, but I read one incident where someone ordered an MSM cam and received a plain old 99-00 cam. Easy to overlook. Can you triple check the cam?

Saul_Good

I looked at it before getting it installed. Both the box and cam had the BP5 designation. Maybe it was just the case of the conditions although i tried to mitigate best i could, cuz i swear the car pulls stronger on the road. Going to track at a roadcourse when the weather clears up.