900 Air Box Mod....fantastic!

[tdm850rider]

<!--quoteo(post=23494:date=Sat 2nd Dec 2006, 12:30 PM:name=dandywarhol)-->QUOTE(dandywarhol @ Sat 2nd Dec 2006, 12:30 PM) <{POST_SNAPBACK}><!--quotec-->Hi and welcome Marco.
Why do you want to switch manually??????????<!--QuoteEnd--><!--QuoteEEnd-->

He may not, the second 'schematic' with switch may be just for those people who like things easily reversible.
You know... the anal-retentive.
It certainly would show a doubter of the air flap mod the difference!

[iz4dja]

<!--quoteo(post=23494:date=Sat 2nd Dec 2006, 05:30 PM:name=dandywarhol)-->QUOTE(dandywarhol @ Sat 2nd Dec 2006, 05:30 PM) <{POST_SNAPBACK}><!--quotec-->Hi and welcome Marco.
Why do you want to switch manually??????????<!--QuoteEnd--><!--QuoteEEnd-->

Hi dandy,
if I put in my power commander one map with more fuel i need more air , so i can balance the mixture.
For instance, when i go for a long travel i put in a map for low consume, instead when i drive with my crazy friends i put in an acceleration map with more torque

Also , in Italy every two years we must go to motor-office for to check the pollution from exausth and more, so i can set-up original values on my bike.

I like to find the best set-up for my driving so in every while i can improve my set-up.

This post was last modified: 02-12-2006, 05:58 PM by iz4dja.

[dandywarhol]

Hi Marco
I don't understand how the additional wiring circuit can alter the Power Commander - surely you need to set it up through the USB port???

I have a Power Commander fitted and find the airbox modification gives no difference to the way the engine drives - just more intake noise................

In fact, when I had the TPS replaced I refitted the airflap back to standard. It should have no effect on the emissions for a test whether the flap is open or closed.

[steveglover]

<!--quoteo(post=23512:date=Sat 2nd Dec 2006, 06:44 PM:name=dandywarhol)-->QUOTE(dandywarhol @ Sat 2nd Dec 2006, 06:44 PM) <{POST_SNAPBACK}><!--quotec-->I have a Power Commander fitted and find the airbox modification gives no difference to the way the engine drives -<!--coloro:#FF0000--><!--/coloro--> just more intake noise................<!--colorc-->
<!--/colorc--><!--QuoteEnd--><!--QuoteEEnd-->
Maybe they check that?

[wicklamulla]

<!--quoteo(post=23502:date=Sat 2nd Dec 2006, 05:31 PM:name=tdm850rider)-->QUOTE(tdm850rider @ Sat 2nd Dec 2006, 05:31 PM) <{POST_SNAPBACK}><!--quotec-->He may not, the second 'schematic' with switch may be just for those people who like things easily reversible.
You know... the<!--coloro:#33CC00--><!--/coloro--> anal-retentive.<!--colorc-->
<!--/colorc-->It certainly would show a doubter of the air <!--coloro:#33CC00--><!--/coloro-->flap<!--colorc-->
<!--/colorc--> mod the difference!<!--QuoteEnd--><!--QuoteEEnd-->

your a right wan you are !


<!--quoteo(post=23512:date=Sat 2nd Dec 2006, 06:44 PM:name=dandywarhol)-->QUOTE(dandywarhol @ Sat 2nd Dec 2006, 06:44 PM) <{POST_SNAPBACK}><!--quotec-->Hi Marco
I don't understand how the additional wiring circuit can alter the Power Commander - surely you need to set it up through the USB port???

<!--coloro:#FF0000--><!--/coloro-->I have a Power Commander fitted and find the airbox modification gives no difference to the way the engine drives - just more intake noise................<!--colorc-->
<!--/colorc-->
In fact, when I had the TPS replaced I refitted the airflap back to standard. It should have no effect on the emissions for a test whether the flap is open or closed.<!--QuoteEnd--><!--QuoteEEnd-->


AE would that be a result of having yer engine tuned up so it over rides any negative effect the air flap may induce ???

[iand1947]

<!--quoteo(post=23502:date=Sat 2nd Dec 2006, 05:31 PM:name=tdm850rider)-->QUOTE(tdm850rider @ Sat 2nd Dec 2006, 05:31 PM) <{POST_SNAPBACK}><!--quotec-->He may not, the second 'schematic' <!--coloro:#660000--><!--/coloro-->with switch<!--colorc-->
<!--/colorc--> may be just for those people who like things easily reversible.
You know... the <!--coloro:#663300--><!--/coloro-->anal-retentive<!--colorc-->
<!--/colorc-->.
It certainly would show a doubter of the <!--coloro:#660000--><!--/coloro-->air flap<!--colorc-->
<!--/colorc--> mod the difference!<!--QuoteEnd--><!--QuoteEEnd-->
You have an electric disposal unit fitted, with gas bypass? - cool bionics!
Beats the hell out of the old colostomy.

[dandywarhol]

<!--quoteo(post=23628:date=Sun 3rd Dec 2006, 03:38 PM:name=wicklamulla)-->QUOTE(wicklamulla @ Sun 3rd Dec 2006, 03:38 PM) <{POST_SNAPBACK}><!--quotec-->your a right wan you are !
AE would that be a result of having yer engine tuned up so it over rides any negative effect the air flap may induce ???<!--QuoteEnd--><!--QuoteEEnd-->

Nah....I think the Power Commander sorts out the low speed fuelling pretty well - although the MAP I use is totally different to anything Dynojet produce - it was produced by the company which set the bike up on their dyno to suit the state of tune. I've got to say that the TPS change has sharpened up the low speed/mid range running much more..........it was running very rich towards the end - I gave it a handful on the rev limiter one time and Minty Hip was nearly asphixiated by the soot You should try it next time you're up here again - it's a different animal

[Spirit]

I tried this one (easily done, thanks to good description) but I don't notice any big difference. May be there are less vibrations at ~2500 when throttling up, but it could be my own imagination.

However, what happens with the emissions? Are there any facts?

[Croc]

I have just read about the mod and tried it this am. I have to say that I noticed an immediate difference to the 'useability' under 4000rpm. Much smother and not nearly so 'snatchy'. If there is a small price to pay on fuel consuption - c'est la vie!

[Matlock]

After seven months of TDM ownership I finally cleared my backlog of SWMBO's DIY tasks and had some quality spannering time with my 900 today. Did the airbox mod - fantastic. 100% more rideable at low speeds. To prove it I went out & found a traffic jam (not too difficult today). Runs cleanly at very low speed, instant pick-up, no snatchiness. Why, oh why didn't I do this earlier? Next job, play with the CO settings.

[bilbob]

<!--quoteo(post=36186:date=Mon 9th Apr 2007, 04:48 PM:name=Matlock)-->QUOTE(Matlock @ Mon 9th Apr 2007, 04:48 PM) <{POST_SNAPBACK}><!--quotec-->After seven months of TDM ownership I finally cleared my backlog of SWMBO's DIY tasks and had some quality spannering time with my 900 today. Did the airbox mod - fantastic. 100% more rideable at low speeds. To prove it I went out & found a traffic jam (not too difficult today). Runs cleanly at very low speed, instant pick-up, no snatchiness. Why, oh why didn't I do this earlier? Next job, play with the CO settings.<!--QuoteEnd--><!--QuoteEEnd-->

Hi all!
Just joined to add my appreciation for this mod. Performed yesterday during a bit of maintenance, and WOW! Immediate, clear difference!

Thanks a LOT!

[geordieguy]

<!--quoteo(post=36193:date=Mon 9th Apr 2007, 05:45 PM:name=bilbob)-->QUOTE(bilbob @ Mon 9th Apr 2007, 05:45 PM) <{POST_SNAPBACK}><!--quotec-->Hi all!
Just joined to add my appreciation for this mod. Performed yesterday during a bit of maintenance, and WOW! Immediate, clear difference!

Thanks a LOT!
<!--QuoteEnd--><!--QuoteEEnd-->


Same here,

Did the mod 1, and what a brilliant change.

Smooter and less vibration.

Cheers, Ivan

[Peter Ertl]

<!--quoteo(post=36193:date=Mon 9th Apr 2007, 05:45 PM:name=bilbob)-->QUOTE(bilbob @ Mon 9th Apr 2007, 05:45 PM) <{POST_SNAPBACK}><!--quotec-->Hi all!
Just joined to add my appreciation for this mod. Performed yesterday during a bit of maintenance, and WOW! Immediate, clear difference!

Thanks a LOT!
<!--QuoteEnd--><!--QuoteEEnd-->
Hi BB. Welcome to Carpe. Glad the mod worked so well. I'm sure you'll find lots more helpful hints and stuff on here.

[torbay]

Instead of a switch why not have a little valve ????????? like the ones that control air flow in fish tanks ????

[wicklamulla]

<!--quoteo(post=40762:date=Tue 15th May 2007, 08:33 PM:name=torbay)-->QUOTE(torbay @ Tue 15th May 2007, 08:33 PM) <{POST_SNAPBACK}><!--quotec-->Instead of a switch why not have a little valve ????????? like the ones that control air flow in fish tanks ????<!--QuoteEnd--><!--QuoteEEnd-->



why and what for ???

[zardoz]

To let the gas out of leathers with a quiet gentle hiss

[torbay]

Earlier in this thread someone was on about electric switches and all that .................... My thought was that if you just make the pipe a bit longer and put an air control valve just under the front of the tank you can have it open or closed thats all "!!!!!!!!!!!

[wicklamulla]

<!--quoteo(post=41576:date=Thu 24th May 2007, 08:12 PM:name=torbay)-->QUOTE(torbay @ Thu 24th May 2007, 08:12 PM) <{POST_SNAPBACK}><!--quotec-->Earlier in this thread someone was on about electric switches and all that .................... My thought was that if you just make the pipe a bit longer and put an air control valve just under the front of the tank you can have it open or closed thats all "!!!!!!!!!!!<!--QuoteEnd--><!--QuoteEEnd-->

mmmmmmmm i might fit one of those to the missus.

[iand1947]

<!--quoteo(post=36144:date=Mon 9th Apr 2007, 11:14 AM:name=Croc)-->QUOTE(Croc @ Mon 9th Apr 2007, 11:14 AM) <{POST_SNAPBACK}><!--quotec-->I have just read about the mod and tried it this am. I have to say that I noticed an immediate difference to the 'useability' under 4000rpm. Much smother and not nearly so 'snatchy'. If there is a small price to pay on fuel consuption - c'est la vie! <!--QuoteEnd--><!--QuoteEEnd-->
Never found any change in the consumption - nothing negative, anyway

[prwatts]

<!--quoteo(post=18198:date=Wed 4th Oct 2006, 01:11 PM:name=Baron)-->QUOTE(Baron @ Wed 4th Oct 2006, 01:11 PM) <{POST_SNAPBACK}><!--quotec-->Just done the air box mod on my 2004 TDM900, see http://jbx9.free.fr/TDM/index.php?show=tex...=AIR&lng=en

FANTASTIC!! What a result

The on/off low speed throttle response has all but gone, bottom end torque has increased and the engine is just so much more usable between 2000 and 3000 rpm. Fantastic...it feels like a new bike!!

If you've gotta 900 and haven't carried out option 1 referenced in the link above....do it....you won't be sorry <!--QuoteEnd--><!--QuoteEEnd-->

Hi there,
I have just bought an '05 900 and would like to do this mod. I find my bike to be very snatchy at low revs, annoyingly so. Can I get an English translation of this mod? Is it easy to do? I want to take the tank off to fit a Scotoiler anyway. Many thanks Peter, Derby UK