audiard2

yes: no P4 avalable in Paris intra muros.... It's gonna be amazing!

160/BE3/125 works no doubt it has leaned out the low-middle RPM and let the idlejet do his job.... I'm running a 140/55 for idle and it's close to perfection....

I've received and set up the Basic star T5 and... My jetting needs a complete change... it's much too rich by now from idle to the first 1/3 of the throttle. Afterward it's all crasiness and the engine revs like a rocket. I've been testing on idle 110/50; 120/50; 130/50, 120/45 all too rich. 140/50 is a bit too lean. SO I need to find the good one between 2,66 and 2.8... 130/48 (2,7) is maybe the right one. Main is now 140/BE3/125 I will try 160/BE3 to follow the advice of krank-hank

steuerzeiten original zylinder moteur sur l'établi et calcul des diagrammes: il y a de la marge admission:140° échappement:150° transfert: 116° (comme le PX200) admission ist anlass, échappement ist auslass, transfert ist üs.... so you can try : AN:150° (75° max blowback) AU:165-170° US:121° use a 1mm fudi and dremel your exhaust 2,6 mm toward the top to get 165°...

at the bottom of the piston. 0,2 mm 5 mm under the lower piston ring and 0,13 mm at the bottom....

zwei Finger auf der Kupplung! Ja richtig!! it looks like a square seizure... Could be a lack of piston-cylinder clearance or lubrification lean out....

ask your rebore dealer to be definitively sure...

dyno was scheduled for a 4 stroke just before so you have to time it twice: peak power at 7600 rpm

yes you're right it's still a crappy old barrel. I usually don't like kits but I made it for a friend of mine really happy by now...

entshuldidung aber mein Deutsch ist zu wenige... Was ist "lauftbahn" in den motor??? (in english maybe easier...)

QK 1,1mm, kein fudi nur fenstern uberarbeitet.... 125/185 die welle:125/65 in progress Uploaded with ImageShack.us Uploaded with ImageShack.us

ne krücke? Uploaded with ImageShack.us Uploaded with ImageShack.us Uploaded with ImageShack.us dremel skimmed head: Uploaded with ImageShack.us SI 24 slightly ovalized, idle jet 160/55, main 160/BE3/138, P-D S-box, 23/65 and: Uploaded with ImageShack.us almost 16 hp at the wheel

next step is an etronic ignition?

did you keep the breaker ignition on it?

I have a rev counter (not really accurate) look at the dyno run: 9000 really fast but Pmax is at 6700 and it goes down quickly afterwards... The BE5 seems to give more power. The leaning out of Idle jetting (120/50) gives an extra bottom power really usefull. The engine is really efficient with lot of torque at reasonable revs. Next step is the BE1 with his four 1mm holes on the tiny section (BE3 1,2mm) Air filter is drilled (such a mess upon the idle jet....) I'm pretty sure the B-S will provide a higher power peak and an extra power range till higher Revs... limits of the frame/ brakes/ absorbers are really closed....

why it didn't work?

das ist kein problem! Wechsle papierdichtung und weg!

2 more shots of the boost port and piston modifications to allow gaz flow to feed it: Uploaded with ImageShack.us Uploaded with ImageShack.us

Yes, curare (scauri too) knows how to use his dremel... My boost port is 4-5 mm deep. The engine is still waiting for his frame ( lack of place), so I don't really know about his reliability; it can't be worse than the original. bore clearance is just fine, you need to reduce a lot your ignition advance (21-20° max) to avoid classic heat seizure. Don't forget to jet it a bit too rich ( 160/BE3/125 at least) and use a 4% synthetic oil during the running in... just another previously unable shots of the exhaust: Uploaded with ImageShack.us Uploaded with ImageShack.us

My O-tuning SS/ standard GS Uploaded with ImageShack.us

just for fun Uploaded with ImageShack.us

for information: Uploaded with ImageShack.us

0,205 mm at 5 mm under the lower ring. Do you have still some transfert port with a 66,5 mm piston?? What will you do with the boost port window on the new piston?

the mytronic is fitted from the very start of the the project. I will test every SI tuning possibilities without any taboo. I'll wait till I get the BS before a new dyno run (a bit too teuer (60 euros) !)

Quite impressive and technical!