cpenner

I have saved my pennies, and have in my possession a new BHR Ignition kit.

I'm putting it into my 07 GT with 45,000km on it. I had a compression test done on it a few weeks ago, and it all was in the good.

I also happen to have Torque (Lite).

I was thinking it could be kind of fun to log my data for a few trips pre-swap, swap the ignition, and the re-log the data after the swap.

The problem is - I'm a computer guy, not a car guy. So I have no problem setting up data logging - but I don't know which PIDs I should be looking at!

So - does anyone have a wish list of what they would like to see logged pre and post ignition install? (and does this even make sense to do?)

sweetfa

The full version has this already setup - Spend the $5.00 and support the developer ! !

cpenner

What does it have set up already? "Log *this* for RX8 ignition swap"?

I just didn't want to blindly log everything and try to guess what ignition related PIDs to look at for change.

Ricky SE3P

iTrader: (10)

the full version auto-detects many other PIDs so you can find the ones you need with a name description. the free "lite" version is only really good for checking if your phone will connect to your obd2 and if it communicates with the PCM, otherwise the lite is useless. the full version is worth every penny

ShellDude

iTrader: (12)

Agreed on the functional improvements between Lite and Full. I had no problem at all paying the 5 bucks.

Although I'm not sure what you'd expect to see differently... your existing coils would have to be pretty effed up to show anything all that significant.

Maybe RPM and EGT... I'm really grasping at straws here... beyond the obvious "I'm currently throwing a misfire code and hope not to with Ray's coils"...

Beodude

iTrader: (3)

We don't have an EGT, so you can't log that. Timing advance, but I doubt that would be any different. Might go up a bit if there is no indication of knock. Try 40-60 times? That would give you a decent indication of how much faster the car is after.

Perhaps even volumetric efficiency, from better combustion, could change a bit. It would be hard to really see though.

SandrewWalter

Ooh id you facing lot of problems then Google it you,hope you may get you answer there.so go for the better car guy advice who is totally a car person,or else why don't you contact the one from where you bought it.

ShellDude

iTrader: (12)

We most certainly do have EGT. Its calculated and called catalytic temperature.

paimon.soror

iTrader: (15)

Wrong, PID 0x3C

Beodude

iTrader: (3)

Snap! I'll have to check that out. Is it a stock PID or do I have to add it?

TeamRX8

iTrader: (25)

let us know how much it decreases ....

Beodude

iTrader: (3)

Which sensor is it pulling the temp off of? First?

I checked mine out, mid to high 1500 cruising and town driving. AP midpipe, BHR ignition, stock intake with RB duct, intake temps around 80-85 I think.

ShellDude

iTrader: (12)

It's been speculated that it comes from the front O2 sensor -- pre cat... smack dab in the exhaust manifold.

cpenner

Presumably, that is 1500 celcius? I'm going to do some logging of mine, but after warming up and doing a quick burn around the block, mine was at 900 celcius pretty quick. I'll have to turn on logging for a longer more "spirited" run once I have some time.

What's the PID for the cup holder temp?

cpenner

Hmm. I do 600C puttering along at 3K RPM, 900C at normal traffic, and my short (60 second) bursts of "spirited" driving got it up to 1100C.

(This is pre-swap. Tentative plans to swap next week.)

j9fd3s

1500 should be Fahrenheit, 1500c would melt stuff

Brettus

iTrader: (2)

Log bum fluff vs fart strength . Quite valuable compared to what you are proposing ....

cpenner

Ok. Here are the results.

Logging the cat temp didn't really show much difference. Temp is down on average, I think, but the data is too irregular to put a number to it. 5% would be a ballpark number of the maximum noticed change.

My 40-60 times (timed at similar times of day, on the same roads in the same 5 spots) dropped by 0.2 seconds on average. (2.9-3.1 range before to 2.7 to 2.9 range after). This is in spite of having a 1/2 tank MORE fuel load on the after timings.

Now, after running a couple of tanks of gas through, my "km before low fuel light" has gone from a very consistent 300km to 330-340km. I know this method of determining mileage is wildly inaccurate - but I'm pretty confident that running the numbers between fill-ups over the next few tanks will bear witness to a 10-12% improvement in gas mileage.

Now - how much of this is the BHR ingition swap, and how much is simply a new set of plugs, coils, and wires? Who knows. The old set had 50,000km (31,000 miles) on them - but didn't look that bad when they were pulled out. My local dealer had told me (about 500km ago) that the coils and wires looked good, and didn't need to be replaced.

The new stuff is SO much beefier than the old. Nice solid build, well engineered for a good fit. Glad I did it.

RIWWP

iTrader: (2)

Most of the power and mileage change will be from just getting rid of your old stuff. 31,000 miles is a bit over the rough average of where you have a pretty good chance that at least 1 of the 12 pieces has failed.