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Post by Zino on Mar 28, 2020 15:49:29 GMT -5
One of the liquid cooled guys needs to chime in about cylinder head tempatures .
Could it be just poor tolerances on your kit that cant hold up to the rpms that it should be able too .
that is way to many different parts to fail.
A new kit may fix everything 90GTVert has the tpr and has had great results
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Post by ryan_ott on Mar 28, 2020 19:34:01 GMT -5
Are you running an open filter? If so your jetting might be too lean. Have you verified timing with a light for actual degrees? CHT temp you posted is average, maybe a little lower then I’ve been seeing. Ive been between 170-210f CHT and 140 coolant.
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pewpew
Scoot Enthusiast
Posts: 254
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Post by pewpew on Mar 28, 2020 22:43:28 GMT -5
Fixed the power loss issue at wot by changing the float height, but now it bogs like when running very rich when launching wheelies. 140 main, 42 pilot, 0 power jet and needle at the middle
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pewpew
Scoot Enthusiast
Posts: 254
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Post by pewpew on Mar 29, 2020 13:24:59 GMT -5
Are you running an open filter? If so your jetting might be too lean. Have you verified timing with a light for actual degrees? CHT temp you posted is average, maybe a little lower then I’ve been seeing. Ive been between 170-210f CHT and 140 coolant. I have tried many jets from 125 to 140, now its running ok but bogs on every bump |
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Post by ThaiGyro on Mar 29, 2020 16:08:23 GMT -5
Your no-answer to the above questions...OPEN FILTER? If you running those SEXY pod filters? You are fucking yourself! Simple!!
That is NOT the right way to tune...Read more and you will see. You added expensive parts and got some power, but you never got a proper tuned engine. Try an air box and premix...cannot blow up. Really! It can run shitty, will always run.
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Post by ThaiGyro on Apr 1, 2020 4:26:10 GMT -5
PewPew...sorry for the harsh words, but many here either do this for a living, or have blown up more shit than a Navy Seal. My last post and the above questions are real.
I have some detail on F1 intake regimes. I have more on WSB and Moto GP. Small community in FI...smaller yet with Carbs. I say forget "sexy pods"...because they are SHIT, by them selves. Open exhaust? Shit by itself.
The thing to really understand? What do you want your engine/bike to really do? Low end power...low and midrange? Top end as quick as you can? None is even close to the same. I just saw a young, smart guy spend crazy money blowing up engines on a 2T...because he forgot history or failed to apply it. Super smart guy!
My suggestion is to tell this forum what you have, in super detail and where you want to go. I make most of my own parts, because the markets creates obscure mediocrity. That is where the money is! I love to find a limit and then back off a fart.
There are no two engines alike. I had a TZ250 J model that had blue eyes. One blew this way, one blew that way. It was always me...but that is how I learned to properly measure ignition timing. I thought it was farking me....I was farking it and more. After I turned on the light bulb? Bad ass moto!
My proof? I have a Honda CRF250L model that even Honda cannot beat. (Well, they could if they knew what we did) They claim 24 hp...at the crank. We hit near 28 now at the rear wheel....and it is more reliable....and we used all Honda parts, except bearings, hint, hint, hint. It is a serious ball tingler! And weighs only 268 pounds. Still working it!
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Post by ThaiGyro on Apr 1, 2020 7:41:49 GMT -5
I went back through the threads...you did give some great indicators and others offered up some WTF questions. I wonder, besides the fact that I think open filters are shite...do you know your compression? Seems maybe too high for the ignition settings. How do you set your ignition? Can you test at rpm?
There's something happening here, what is ain't exactly clear....
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pewpew
Scoot Enthusiast
Posts: 254
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Post by pewpew on Apr 3, 2020 6:19:45 GMT -5
I dont know the compression ratio and i first set the ignition 1,5mm btdc but it was running rich under half throttle so i changed it to 2,5mm btdc
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pewpew
Scoot Enthusiast
Posts: 254
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Post by pewpew on Apr 5, 2020 12:45:41 GMT -5
Just bought a stage6 95 rt engine, hope it works
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Post by Zino on Apr 5, 2020 13:59:25 GMT -5
Man I like your Budget !
You are already in my don't tell the wife land to her wondering if I am spending money on another woman land .
You got The scooter modding addiction like the rest of us .
I cant wait to see the swap .
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pewpew
Scoot Enthusiast
Posts: 254
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Post by pewpew on Apr 5, 2020 16:33:18 GMT -5
The setup is going to be:
Stage6 R/T 95 bigbore cylinderkit
Stage6 R/T crankshaft
Roost 95/100cc exhaust
Stage6 R/T v-force3 reeds
Stage6 R/T intake
Stage6 R/T 32mm pwk carb
Stage6 R/T subframe
Stage6 R/T mk2 clutch
Stage6 R/T clutch bell
Malossi "La furia rossa" variator kit
Malossi selettra or Mvt allumage premium ignition.
Got all that for 900€ + shipping (980$)
Which ignition should i install, i have both and i would like to have lights and my stage6 speedometer. With malossi those dont work but with mvt they do. What ignition timing should i start with?
Capacity 93.44cc
Bore 52.00mm
Stroke 44.0mm
Conrod length 90mm
Compression 1:15.5
Max. power 23kW
Max. torque 17Nm
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pewpew
Scoot Enthusiast
Posts: 254
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Post by pewpew on Apr 5, 2020 16:46:53 GMT -5
Btw, the mk2 70cc broke another piston and small end bearing yesterday
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Post by aeroxbud on Apr 5, 2020 17:46:57 GMT -5
Wow that's going to be a serious setup.😁
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Post by tsimi on Apr 5, 2020 19:16:30 GMT -5
Which ignition should i install, i have both and i would like to have lights and my stage6 speedometer. With malossi those dont work but with mvt they do. What ignition timing should i start with? I believe PIG used the MVT ignition on the same setup. Maybe he can chime in and give you that info. I use 0.35mm BTDC on my Roost Havoc 70 setup. Which is according to MVT manual. |
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Post by Zino on Apr 5, 2020 20:09:01 GMT -5
wow that is going to be a rocket
your mk 2 kit must be cursed .
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