Accelerator Module

[GeorgeY]

OK so if outside temperature is 30C and I ride with the device installed the ECU will read say 10C the injectors pulse width will be longer- richer mixture- all surging ON/ OFF trotle feel disappear.

But if I ride at 5C without the device fitted the ECU reads 5C, the pulse width for the injectors is even longer than in the case above, but there are some problems reg slow speed riding taking upo drive.

Wahat do you think?

 

[Deleted account 190920001]

Not sure what your asking but I think it is why is isnt it running right without the devise at low temps?
Because if you fitted the device and ran it at 5c the ecu would think it was say -10 so richen the mixture even more. Its not what the mixture is but what it is in a ratio to outside temps. The theory is that without it you are running the stock fuelling whatever the temp is but with it you will be running richer whatever the temp. I know this isn't strictly true because the offset gets less in lower temps but its still the same principle.

 

[Merv]

mine had no issues before fitting[07 gsa] but i have seen a good improvement in top gear roll on from 60 to 85mph

 

[maxtedbike]

ACCELERATOR module

I hope someone can help me please, looking at the module and have just received an email from Marc Vernackt (the supplier) asking if I wanted a compact version or a extended one....Not sure what one I need for my 2008 GSA...Thanks Paul...

 

[Yonkyo]

I hope someone can help me please, looking at the module and have just received an email from Marc Vernackt (the supplier) asking if I wanted a compact version or a extended one....Not sure what one I need for my 2008 GSA...Thanks Paul...

I have tested both, and.......
The only difference between the two versions, is the extended type has it's temp censor on the end of a cable. Which can be located away from any heat generated by the engine. Though unless you are riding in very high ambient climates. I don't think theres any benefits over the standard version.

 

[maxtedbike]

I have tested both, and.......
The only difference between the two versions, is the extended type has it's temp censor on the end of a cable. Which can be located away from any heat generated by the engine. Though unless you are riding in very high ambient climates. I don't think theres any benefits over the standard version.

Thanks for your help Standard it is...

 

[spikidave]

Roughly, how long does delivery take for one of these to the UK, I've been waiting about a week and the postman keeps a walking by, am I being a bit optomistic expecting it to arrive within a week?

 

[kirkymagnum]

Mine took a couple of weeks..... But once it arrived

 

[Trevor Phillips]

Roughly, how long does delivery take for one of these to the UK, I've been waiting about a week and the postman keeps a walking by, am I being a bit optomistic expecting it to arrive within a week?

A week for me; maybe he's on holiday.

 

[Yonkyo]

Roughly, how long does delivery take for one of these to the UK, I've been waiting about a week and the postman keeps a walking by, am I being a bit optomistic expecting it to arrive within a week?

It can take upto a couple of weeks to arrive.
But its worth the the wait.

 

[spikidave]

It arrived a few days ago just in time for a 260 round trip and what a difference in crawelling traffic, no significant increase in consumption. F.A.B. Money well spent

 

[Mysticwind]

Hopefully right thread to post - dynorun with Boosterplug

Same Dyno, same operator, similar external ambient temp, 1 month apart

Bike - 2010 DOHC Adv with K&N filter, Full akra system, no baffles

run 6 is standard
run 13 is with boosterplug & no other changes

With boosterplug it feels smoother and for my set up has given me an almost new "powerband" at the top meaning for a given throttle input old over new i am now bouncing off the limiter more.
More importantly on full beans my AFR is down from 13.9 to 13.5.

 

[Stevie73]

Just ordered mine. Can't stand the lumpy and jerky power delivery at low rev low speed....can't wait

 

[nanotech9]

I talked ebbo out of all his info (he had the most collected research so far) and started filling in some holes where he left off...

Lastnight i pulled out the stock BMW AIT sensor which is nothing more than a Thermistor in a fancy cage that pokes down into the airflow.

Using a glass of water, i started at 35C and slowly lowered the temp to 1C (couldn't get it to 0 with just ice) and took readings every 2 deg.

ebbo already had TEMP readings on the BMW sensor, but not resistance readings. Now I have resistance on the BMW sensor, and his findings on a 15k Ohm NTC thermistor. I'm going to do the same with a 10k and a 10k + 4k7 in series as well and compare.

So far, the curve on the BMW sensor is shallow, and the 15k NTC Thermistor is a little more drastic. at 35C its resistance is too high, and a 1C its resistance isn't high enough.

When i take more readings I'll know more.

Obviously, this is only fun for the do-it-yourselfers out there. All others should enjoy the pre-packaged commercial products. I like tinkering and have a couple of buddies that could use one of these devices. With the connectors at $6 ea, and the NTC Thermistor's at about $0.45 each, its a fun project with little cost and a chance to help several friends bikes run better (as well as mine!).

I finished my first test unit lastnight. BMW type plug (Junior Power Timer male plug - same as used in many Fuel Injectors on many cars including BMW's) that runs to another plug so i can swap out several test Thermistor models and use the same $6 BMW plug over and over w/o re-soldering or re-crimping.

Weather will be nice this evening after work. I expect a test ride. Stay tuned!

Eric - Oklahoma City USA.

 

[Yonkyo]

Same Dyno, same operator, similar external ambient temp, 1 month apart

Bike - 2010 DOHC Adv with K&N filter, Full akra system, no baffles

run 6 is standard
run 13 is with boosterplug & no other changes

With boosterplug it feels smoother and for my set up has given me an almost new "powerband" at the top meaning for a given throttle input old over new i am now bouncing off the limiter more.
More importantly on full beans my AFR is down from 13.9 to 13.5.

Interesting data
Very similar power curve, and a bit more top-end with the fuel mod.
Plus the added safety margin of richer fuelling.

cheers for that.

 

[adventuredon]

got mine within a week. Took about 20 minutes to unscrew the panels, and 30 seconds to fit ( and I am a real newbiw to fiddling a bike stuff - it cannot go anywhwre else if you look at all the pics). Have been on a long run, a spirited rideout (well in my eyes anyway) that did small B roads,, A roads and a big stretch homewards. Fuels consumption was immed better. And remians so after 4 weeks. even on computer and manually working this out over 5 tanks, so it must work ...This includes my commute which is very stop/start and idle speed! I find it very responsive, a lot smoother and always there when needed. I have however, lost a lovely gurgling sound from my bike...but hey ho..worh the money spent. just do it

 

[GB.]

Fitted mine tonight along with a K&N and a Leovince pipe. I ordered it sunday, they emailed me same day saying would be sent monday, turned up wednesday, that'll do me for service, just hope it's as good as they say.

 

[GB.]

Well I rode into work today as per normal, first thing I noticed was a more consistent idle then 2nd and 3rd felt a lot lot smoother, couldn't notice to much change in the top end power, even though it had all the other mods. I was running the pipe straight through with no deci killer, sounded ok but to much burble on the overrun for my liking (must be getting old) so I've stuck the deci killer in and will try it again tomorrow. One thing I did notice was I was using less throttle for the same given speed, so that in theory should led to more mpg

 

[Rasher]

Having now gone through this lot am I right in thinking almost everyone has been happy with whatever unit they bought in pretty much all conditions?

Has anyone switched from Mk1 to Mk2 or from Accelerator Module to Boosterplug and found any huge differences?

And what about the proposed issues with the Accelerator module in extreme heat or cold

I think they sound worthwhile just to reduce the chances of valves dropping and other nasties related to weak running, even with the fitted they seem to run pretty weak compared to Jap fours I have had setup on dyno's where they tend to aim for 12.5-13.5:1 ratio's.

Sounds like a great mod for £30 - £100, just wondered how those who have used one in all four seasons have found it.

 

[bose]

Rasher just get one ,its not a lot of dosh compaired to fast action throttles .
It seems most dont have any problems just positives to a cheap mod and smoother running with no probs in fueling,jobs a gooden