Accelerator Module

[mavn]

7,907 views already. What an intriguing thread !

Mavn, if your product is so sophisticated and does not use serial resistors, then where is this sophistication hidden?

I am no electrician so pardon my ignorance
The upper is jenslh's product and lower is Mavn's

If it is not inside the cables, then...it must be inside the connectors I presume?

 

[E. Buygum]

Hi Owen,

Like I said. Everyone is using the same type of components...

From which I infer that the Accelerator module also uses an NTC resistor in conjunction (parallel/series) with other fixed resistances to compensate for air temperature variation (or similar technology). This begs the question: is the isolation of the NTC resistor on the Boosterplug necessary? From Jenslh's website (which is absolutely excellent, by the way) "For reliability reasons, I wanted to cast as much of the electronics in epoxy resin, so only the NTC is on an external cable". I suspect they are both worthwhile products.

 

[chipsonfriday]

I suspect they are both worthwhile products.

So its done to value for money then.

I bought an Accelerator module and am more than happy with the results.

 

[Yonkyo]

Accelerator Module evaluation up-date

I’ve now done 600+ miles with the module fitted, and I’m still totally happy with its effects. Particularly the ultra smooth pick-up and low speed drivability. However, benefits have been much less apparent now the temperature is hovering around 0c.

It was a few weeks ago when it was 10c + that I really noticed the benefits.

My GSA felt really lumpy and viby last summer. So I’m looking forward to some warmer weather next year, when I think this gadget will really come into its own.

 

[Bear]

Accelerator Module evaluation up-date

I’ve now done 600+ miles with the module fitted, and I’m still totally happy with its effects. Particularly the ultra smooth pick-up and low speed drivability. However, benefits have been much less apparent now the temperature is hovering around 0c.

It was a few weeks ago when it was 10c + that I really noticed the benefits.

My GSA felt really lumpy and viby last summer. So I’m looking forward to some warmer weather next year, when I think this gadget will really come into its own.

Your experience makes me think that you have simply added a resistor chosen to be effective in northern European spring/autumn temperatures. The more I read this thread the more coherent jenslh's argument for using a thermistor becomes. Given that my background is in electronics and industrial process control, and I have too much free time on my hands, I feel a project coming on. The end result, if successful, will not be for sale on the grounds that jenslh already sells one and I have neither manufacturing facilities nor the wish to compete with a good product.

 

[jenslh]

From which I infer that the Accelerator module also uses an NTC resistor in conjunction (parallel/series) with other fixed resistances to compensate for air temperature variation (or similar technology). This begs the question: is the isolation of the NTC resistor on the Boosterplug necessary? From Jenslh's website (which is absolutely excellent, by the way) "For reliability reasons, I wanted to cast as much of the electronics in epoxy resin, so only the NTC is on an external cable". I suspect they are both worthwhile products.

Yes, the external NTC must measure aprox. the same temperature as the AIT sensor in the air box for the compensation to work properly.

The amount of cool air flowing through the air box and into the engine makes the temperature inside the airbox more or less the same as the temperature outside. (You may see +1 degree Celsius in the air box compared to ambient temperature, but thats insignificant).

But outside the airbox, under the plastic covers where you hide the BoosterPlug or any other product the temperature will be quite different. You dont have a lot of air flowing through here, so the engine and radiator will heat up the area. You can have +15-20 degrees Celsius here depending on your bike.

So the only way to have proper temperature compensation is to include an external NTC resistor in the setup, and place it somewhere where it will measure ambient temperature correctly.

Until someone prove me wrong, I'll claim that the BoosterPlug is the only resistor tuning device that includes a NTC for temperature compensation.

I cant see how a NTC could be included in the Accelerator module ? I can accept that it could be possible to squeeze in one or maybe even two resistors inside the connectors, but the NTC resistor is of larger dimensions and will certainly not fit into the connector casings.

Even if it was posible, the NTC would measure temperature in the wrong place, so its really to no use.

I promised myself that I would stay away from negative talk about "competitor" products, and I'll probably hate my self for this post, but I cant make ends meet here......

/Jens

 

[nick.ct]

Bear, I'm with you on this one. Fancy a joint project? I'm sure Jens' booster plug is the right approach but I dont feel like spending that much just now.

 

[sutty]

mavn accellerator

hi mavn,just got your cable(very fast delivery cheers mate)will be fitting today and filling the bike up so will send feedback soon to this thread.people are saying that becouse of the cold weather you may not see a big differance,but hopefully when we are in spain again later in the year(34 degrees last year was the hottest we saw) on the twisties in the south it will show its self how good this gadget is cheers.

 

[luckylucian]

Manv,

Sutty ordered his module on the 10th Dec, and received it on the 15th Dec, I had my order confirmation e-mail to Carrie-Ann on the 5th saying it would be post on Monday (7th Dec) but still no module.

I'd have PM'd you but you've not paid the £12 so cannot be PM'd in this forum.

Help us out a bit here

 

[Yonkyo]

Manv,

Sutty ordered his module on the 10th Dec, and received it on the 15th Dec, I had my order confirmation e-mail to Carrie-Ann on the 5th saying it would be post on Monday (7th Dec) but still no module.

I'd have PM'd you but you've not paid the £12 so cannot be PM'd in this forum.

Help us out a bit here

I also ordered another one for a mate on the 10th Dec. and it arrived today.
So i think Xmas is interfering with postage times.

So you should get yours today/tomorrow.

 

[sutty]

accelorater module

fitted it now and started the engine up just to check there was no canbus probs everything fine.thought i would try the engine on the centre stand in the garage, engine seems to rev/respond quicker,cant wait to go work on it tonight,keep you posted.

 

[Yonkyo]

I also ordered another one for a mate on the 10th Dec. and it arrived today.
So i think Xmas is interfering with postage times.

So you should get yours today/tomorrow.

Correction

Should have read. ordered for my mate on the 5th Dec arrived today

 

[Beemerman59]

In summary

In trying to get a laymans take on this then:

£29 buys you a great mod (accelerator) if the temperature is 20 degrees, not quite so great if the temperature is zero or 40 degrees (but still better than stock).

£100 buys you the same great mod (Boosterplug) but with the advantage of being able to adjust according to the ambient temperature so you get the same improvement right across the temperature range.

I will be thinking of either for when I buy my cat free headers to add to my Akra can on an '08 GSA, as up until now I have been resigned to the Power Commander option due to the lean running. Thats just too much money for me.

What would be cool would be a group buy, or a manufacturer like Keihan to pay a licence fee and make it an option with their headers.

 

[Magnon]

Manv,

Sutty ordered his module on the 10th Dec, and received it on the 15th Dec, I had my order confirmation e-mail to Carrie-Ann on the 5th saying it would be post on Monday (7th Dec) but still no module.

I'd have PM'd you but you've not paid the £12 so cannot be PM'd in this forum.

Help us out a bit here

I'll send you his email address, ordered mine on the 7th and its just arrived.

 

[AdieL]

Hi Jens,
You make a very convincining pitch of your Booster Plug and if it does what you say it does I for one would order one. What would be a good idea would be to supply 'Yonkyo' with one of your units so that he can compare it with the Accelerator Module. I'm sure there are plenty of prospective buyers here when you look at the number of Accelerator Modules ordered since they were mentioned on this site.
Regards,
Adrian

 

[Bear]

Bear, I'm with you on this one. Fancy a joint project? I'm sure Jens' booster plug is the right approach but I dont feel like spending that much just now.

Being only a cheapskate member I can't pm you with my contact details but as there's only a short length of the A523 between us a measure of cooperation should be possible. The first thing to do is plot resistance against temperature for the stock AIT thermistor then find out the temperature range the ECU expects to read. In an ideal world we would then find a thermistor from another vehicle that did the job perfectly but I wouldn't bet on it. A large part of Jen's price will be to cover untold hours of research and developement, all of which we would be repeating. Most of the rest of the price will be to cover the aftersales service required to deal with the occasional plonker who buys whatever is fashionable without understanding it (I work for a retailer and deal with such plonkers regularly). I'd find it fascinating to develop a version of this but under no circumstances would I wish to sell it. I would likewise be cautious about publishing details of it to avoid the attention of the aforementioned plonkers.

 

[nick.ct]

Bear, hi.
Maybe this could be a time to pay your subs, or contact me some way. I have no intention of trying to market anything and propose this only as a matter of interest. See http://www.ukgser.com/forums/showthread.php?p=2133845#post2133845 , post 10-11 I think.
It seems that many folk 'in the know' dont wish to share all and fair enough if they are making money from it. I'd be quite happy to take some measurements and do some sums, I feel sure that a solution is possible.

 

[jenslh]

Hi Jens,
You make a very convincining pitch of your Booster Plug and if it does what you say it does I for one would order one. What would be a good idea would be to supply 'Yonkyo' with one of your units so that he can compare it with the Accelerator Module. I'm sure there are plenty of prospective buyers here when you look at the number of Accelerator Modules ordered since they were mentioned on this site.
Regards,
Adrian

That's a good idea Adrian, but I simply dont have any available BoosterPlugs at the moment.

I'm shipping the last ones this week and I'm keeping a waiting list for the next batch that will be finished around january 15. (And it will probably be sold out before)

But several of the people that decided to buy the BoosterPlug, already have some kind of resistor tuning device, so we can be pretty sure that they will compare them to the BoosterPlug - and some of them will post their experiences in the forum.

/Jens

 

[sutty]

accelorater module

went to work on the 12gs with the module fitted and straight away you can feel the bike is running smoother,and surprisingly the tingle in the bars has gone.on the m56 filtering thru slow traffic again it felt better, when i got some clear motorway i was in 6th gear 50 mph open the throttle full and the drive was definatley stronger and smoother,well happy.just need to see if the fuel economy gets better.p.s. i have had 2 1200gs now an 05 and 08 and between the two done 62,000 miles.

 

[ExpatinIstanbul]

Accelerator fitted. '05 GS / 20,000 miles / de-catted with Akra end can.

Just a quick test as the weather is crap (temp = 3c). Immediate noticeable effect on slow speed riding. The on/off effect on my throttle appears to have gone and it picks up very smoothly now. Tickover at standstill is now 1,250rpm instead of 1,500. Engine feels like it's revving more freely and will pull better at lower revs. That's all for now, hopefully the weather will be better on Saturday so I can more then. So far, so good.