View Full Version : To Ditech owners

07-30-2001, 06:42 PM
<FONT FACE="Verdana,Arial" SIZE=2>Please answer only if you are driving one of these units.
Do you like and trust this unit.</FONT><FONT FACE="Verdana,Arial" SIZE=2>Results (total votes = 233):</FONT><table bgcolor=#FFFFFF border=0 cellpadding=3 cellspacing=0 width="75%">
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<FONT FACE="Verdana,Arial" SIZE=2>very much</FONT>&nbsp</td>
<td height><FONT FACE="Verdana,Arial" SIZE=2>170&nbsp;/&nbsp;73.0%</FONT>&nbsp</td><td><img src=http://www.ezboard.com/images/bar.gif width=218 height=10 hspace=3>&nbsp;</td></tr>
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<FONT FACE="Verdana,Arial" SIZE=2>some what</FONT>&nbsp</td>
<td height><FONT FACE="Verdana,Arial" SIZE=2>25&nbsp;/&nbsp;10.7%</FONT>&nbsp</td><td><img src=http://www.ezboard.com/images/bar.gif width=32 height=10 hspace=3>&nbsp;</td></tr>
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<FONT FACE="Verdana,Arial" SIZE=2>so so</FONT>&nbsp</td>
<td height><FONT FACE="Verdana,Arial" SIZE=2>11&nbsp;/&nbsp;4.7%</FONT>&nbsp</td><td><img src=http://www.ezboard.com/images/bar.gif width=14 height=10 hspace=3>&nbsp;</td></tr>
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<FONT FACE="Verdana,Arial" SIZE=2>yes, but with some untrust of the engine systems</FONT>&nbsp</td>
<td height><FONT FACE="Verdana,Arial" SIZE=2>11&nbsp;/&nbsp;4.7%</FONT>&nbsp</td><td><img src=http://www.ezboard.com/images/bar.gif width=14 height=10 hspace=3>&nbsp;</td></tr>
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<FONT FACE="Verdana,Arial" SIZE=2>I hate the thing</FONT>&nbsp</td>
<td height><FONT FACE="Verdana,Arial" SIZE=2>16&nbsp;/&nbsp;6.9%</FONT>&nbsp</td><td><img src=http://www.ezboard.com/images/bar.gif width=20 height=10 hspace=3>&nbsp;</td></tr>
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micah apriliaforum com
07-31-2001, 09:22 PM
Looks like confidence is good.

micah apriliaforum com
08-14-2001, 06:55 PM
To those who hate it...is it derestricted and running lighter roller weights?

Dutch Royal T
09-13-2001, 04:26 PM
DiTech sucks (for now) (tunings wise)

All hail the carburettor.

The DiTech isn't very tunable. Maybe in the future, but still, what's the fun of "chip tuning".
It's much nicer to test and try your own stuff and adjust all parts.

If your not into tuning your bike than it's a very good option.

09-13-2001, 09:15 PM
I'm pretty happy with my DiTech....hi mileage, low emissions...long live DiTech!

ed apriliaforum com
09-14-2001, 10:07 AM
Royal T,
imagine tuning your DiTech with a laptop computer and never getting dirty or gasoline on your jands.....AND......having very, very precise control over fueling and ignition timing

true, there is more hop-up stuff for the carb models, but people all around the world are working on DiTech goodies.....

09-14-2001, 11:43 AM
I would love to tune my ditech myself but you can not get holed of the software anywhere, It is just the bloddy dealers who have them.

09-14-2001, 12:37 PM
Hi Spyro, for the moment it looks like you'll have to cultivate a good working relationship with your local dealer. Once you get to know them (especially the mechanics ;) ) they're more likely to help you out at reduced rates. I can't guarantee it'll work but it's got to be worth trying.
P.S. Did you have any luck finding an expansion pipe?

09-14-2001, 01:35 PM
No I have not had any luck finding a expansion pipe, do u know anywhere, where I can get one from ????????

09-15-2001, 01:43 AM
I got a Tecnigas for my non-DiTech 2001 SR Racing from www.taffspeed.co.uk (http://www.taffspeed.co.uk)
Have a look at these sites and give them an Email to check availability:-
www.giannelli-direct.co.uk (http://www.giannelli-direct.co.uk)
www.leovinci.com/scoot/engl/scoot.html (http://www.leovinci.com/scoot/engl/scoot.html)
www.malossiuk.com (http://www.malossiuk.com)
Hopefully these links work :cool:

Dutch Royal T
09-15-2001, 07:38 AM
I checked the Giannelli site. I find it strange the Giannelli Nardo (now Shot) isn't anywhere on the page. It's the best 2 stroke scooter exhaust they have. Specially made for 70cc kits. I have one under my Rally. It looks like the NRX, but the expansion doesn't have that weird bend where the second cone begins.

09-15-2001, 10:51 AM
What would be the best Exhaust to get for a 50cc for the best performace , would the Giannelli Shot Exhaust be ok on a 50cc or is it only designed for the 70cc ??????????????

10-19-2001, 05:35 PM
compared to other 50cc scooters I've been on my Ditech kicks major butt.....I'm 6'8" 275 lbs. and I keep mine between 35-55mph depending on the grade.......mine is strictly a commuter to keep miles off my Mille (10 mile round trip to work each day in stopped traffic is nice when I fly by on the shoulder) so the power and ease of operation is PERFECT for me......and it gets as many looks as my Mille....people are used to those plain jane scoots from Asia over here in the US.

Dragster pilota
05-16-2002, 02:13 PM
Dutch Royal T in da house:
checked the Giannelli site. I find it strange the Giannelli Nardo (now Shot) isn't anywhere on the page

Check again: www.giannelli.com/eng/pro....asp?id=53 (http://www.giannelli.com/eng/prodotti/lin.asp?id=53)

As for DiTech I myself had a hard time accepting the non carb way of riding but the more time I spend behind my laptop and the handlebars on our demo-Malossi-DiTech the more I look forward to every new little part I can get my hands on and also the tips from my Belgian connection who is also doing some serious DiTech blueprinting (calling it tuning is to early) ....

I have just received a Giannelli NRX DiTech pipe and a Arrow DiTech Kompress and will evaluate and see what they will do... Latest addition is a Malossi Red Sponge filter to the stock air box, I used the Red Sponge for a Runner 50cc and cut it to DiTech size.. Sounds a bit more and maybe it gave some in the mid-range...

DP says: I'm in awe of what Aprilia have done with the DiTech and with some help from Malossi and fiends it will rock....

05-29-2002, 03:59 AM
Yes i trust it but the shity thing is it has no kickstart and its all electronic if you remove the electronic conector on the gas valve the injection check lamp wil flicker and it doesent react on gas anymore. I think it had its kids problems but i think it is a revolution for the scooter engine.

Greets Steekvlammetje

Dutch Royal T
05-29-2002, 04:45 AM
DP, I looked at the wrong Giannelli site. (.co.uk)

Darragh G
06-20-2002, 04:02 PM
Yeh i trust the engine ok (a bit annoyed at the lack of kickstart) but recently my back wheel started to tell me where to go as opposed to me telling the bike! the frist time that it happened i was mid-corner and i VERY nearly lost it ( big fat white lines on a wet road dont help either!)

well the point is that sometimes the back end sort of moves from left to right a bit. it doesnt really affect the direction of the bike that much (at least not after i got used to it) it just seems to put me off balance so i move (slowly and gently) from side to side. does anybody know what i can do myself to fix this? (the bike is due for its 4000km servise but i aint gonna service it cause im sellin it)

thanx in advance

06-25-2002, 09:49 PM
Aren't you a little alarmed ? This is a recent occurrence ?Something is clearly wrong. My scooter has never exhibited that problem.

I'll admit it can catch some air at 45mph but that isn't out of the ordinary for a scooter ona windy day.


Dragster pilota
07-28-2002, 06:56 AM
Dutch Royal T in da house:
DiTech sucks (for now) (tunings wise)

How about a NOS fitted Ditech????

And don't say it don't work on a 2-stroker because that's a lie.... NOS/Holley have several 2-stroke kits for snowmobiles and Jet Skis so those experineces can (and will) be used on a DiTech..

The best thing with the DiTech is that it's fitted with an High Pressure Fuel pump that gives 6.5 8 Bar and the current draw is < 0.5 A. This has been the problem when doing a NOS kit on a scooter since there are no fuel pump and if you find one with enough pressure it draws way to much current and will not be able to keep an even fuel pressure.. On a NOS setup not enough fuel in the fogger means a "big bang"..

Just order some NOS parts from your local Drag Racing Heaven and one extra DiTech fuel pump and with that low of an current draw there will be no probs with running one extra pump that will be wired in with the NOS system and only put pressure through the system when the NOS is "armed"...

The fuel pump will be hooked up to the fuel hose (14) and be used instead of the hook up on the fuel rail (7). The fogger (4) will be fitted in a distance between the intake manifold and reed block...

DP says: Think about that one for a while....

11-05-2002, 09:13 AM
well dunno bout ne one else having all these probs i have had my ditech derestricted and havent had one problem it does 60 on a strate and 40 uphill and that is without a pipe i have even hit 70 on the clock but only once :) i love it no probs wot so ever

11-08-2002, 04:02 PM
As I can see there is no one in here who really understands anything about the di-tech!! the di-tech becomes slower with the exhaust pipes, because they are just made for tuned engines!! they aren't worth it!! the sound becomes really good with the Leo Vince ZX!! the gianelli exhaust pipe sucks, because you can just fit it on 70cc's!!

11-12-2002, 02:51 PM
LOL, slower with a pipe, my ars*, my ditech accelerates alot faster, holds speed on hills better, and gets about another 5 mph top end outta my giannelli pro 6 pipe, u jus gotta ave em set up right!

12-10-2002, 07:49 AM
Hi there

I dont totally agree with the last post, there is plenty of people on this forum with lots of experience on tuning 2 stroke engine.

Regarding Exhaust pipes there are specific ones available for the ditech engine from Giannelli and leo vinci, and I beleive they do improve the performance of the engine albeit slightly and probably with some loss of bottom end power and torque, but in order to get the max out of the tuned pipe the fuel map should in theory be modified to suit the pipe, nuch in the same we change the jetting in the carb to optimise the engine.

The problem with tuning the ditech is modifying the fuel injection to add more fuel, the correct method would be with a modified fuel map, but I cant see any pipe manufacturer developing an alternative fuel map for a tuned pipe as the investment cost would be huge and would make the cost of the pipes prohibitive.

But I would not give up hope just yet, several persons have fitted 70 cc kits to the ditechs and increased the fuelling by raising the operating pressure of the fuel injector, but this is very much a trial and error operation and time consuming to get it right.

The only people who are likely to offer a conversion that is plug and plug is going to be mallossi or pollini as now piaggio now sell scooters with the a similar injection system developed by orbital, it now probably makes to crack the code and engineer alternative fuel maps, I would hazard a guess that the will offer a 70cc kit with similar timing on both engines and a suitable tuned pipe for it therefore the same fuel map will probably work on both both engines with minor tweaks.

Lets hope someone gets their act together and brings a kit on the market soon.


Joe Rubido

micah apriliaforum com
12-12-2002, 10:34 AM
Have you had the opportunity to run your scoot on a dyno with a 4 gas ega? I would like to see exhaust data for 50cc and 70cc versions and compare it. Are you in America?

12-12-2002, 11:01 AM
i like to ask whats the differnece between the 50cc and 70cc with a pipe....

03-14-2003, 01:03 PM
Ditech is brilliant so far!
Im very happy with my Ditech so far! its 100% more efficient than my old speedfight 50cc(derestrict), the only gripes i have with it are the stand sometimes catches when i lean in on corners , there are no drains in the helmet compartment (sometimes pool of water in the bottom) and also there is no kickstart!, for the money i paid i would expect a little backup. apart from that this is a move in the right direction in the 21st Century. ps how long do you think the motor will last on a phase 1 derestrict anyone?

06-05-2003, 04:16 AM
I have had my di-tech tuned i now usually expect a average speed of 65mph and on good days 70mph ive had various changes to my engine however nothing major, kevlar belt, race rollers, 2nd stage de-restriction, and new fuel injectors, ive had my bike from new and had it tuned around a month after owning it, i had it serviced regulary and now at 1 year old and 15000 miles of being thrashed my head gasket has only just gone so i would say these engines are pretty robust.

This is what my bike mechanic said bout the exhausts, the gianeli race kit is the one to get i may set you back a little however this kit is fully thought out. the problem with previous pipes was that they where letting too much pressure out because of the way the aprillia chip was programed, so gianneli programed onle to go with their exhaust.
Trust me this system works because my friend bought it i could keep up with him till 60mph then he was able to pull away.