ESE's works engine tuner

[TZ350]

.
2Stroke Stuffing's dyno can measure well enough to see actual changes in performance when trying new ideas.

Here is a megaphone exhaust:- https://youtu.be/fiL1FBT8DUs

[Brett S]

Meteor lists smaller sizes than what Mondokart sells online.

https://www.meteorpiston.com/shop/p2...egory=68#attr=

[sniemisto]

Yatasaki, thanks for detailed info.
Brett S, good link, there seems to be correct size available for my use. Need to find out ring suitability on plated cylinder.

[husaberg]

.
2Stroke Stuffing's dyno can measure well enough to see actual changes in performance when trying new ideas.

Here is a megaphone exhaust:- https://youtu.be/fiL1FBT8DUs

[PVO]

I try:

Attachment 350861

Probably needs updating. Any ideas?

Is there a repository (other than these threads themselves) on Kiwi Biker or anywhere that contains all of the write-ups you and others have put together? I have been trying to compile them for my two-stroke notes collection over the years. I would hate to be missing any.

[Frits Overmars]

you click on Neels name and hit view forum posts.
KBs multiquote diesnt like more than two pages it seems ......

Husa, when I click on Neels name and hit 'view forum posts', I get no less than 8 pages, but in a format that is not as practical as what you've shown above (see screenshot).
What am I doing differently?

[Hoebra]

@ wobbly,
can you please explain how to use the PS92N Cranecoil with DCCDIP2 Ignitech? You explained it before, but I couldnt find it anymore. I use the DCCDIP2, Software V76. I connected both Ignition Coil Outputs of the CDI (Pin1 and Pin 10) with the Coil, but I think because I use only 1 Pickup theres only 1 channel active. I tried to connect Pickup 2 Input (Pin 20) to Pickup 1 Input (Pin 9), but then theres massive missfire. Theres even only room für 1 Pickup. Could you please make some suggestions how to modify Hard and Software to increase Ignition Power?

[wobbly]

Here is a screen shot of a P2 Race with 1 trigger and two coils firing together. This page is the same setting for your software.
This is how you turn on and off the second channel , and what lobe it operates on in any Ignitech.
The Crane because of its very low primary resistance and very high secondary inductance , forces the ECU voltage converter to output higher Watts ( Joules for Frits ) , but
this is only possible as long as the power supply actually is capable of doing it.
On my test setup the P2 was pulling nearly 5Amps - and the spark at the plug gap was a huge fat blue discharge.
Ive got an MP4 of it but cant post it here.
On petrol this setup on a 250cc open class kart engine made no difference in power , but in a 125 on Methanol with 18.5:1 compression it added nearly 2 Hp at peak.

[Hoebra]

Thank you very much. Even with 1 Output firing I believe to mention cleaner firing under full throttle in low revs. I will post the results.

[husaberg]

Husa, when I click on Neels name and hit 'view forum posts', I get no less than 8 pages, but in a format that is not as practical as what you've shown above (see screenshot).
What am I doing differently?

Hi Frits that how you go to his posts.
I also multiquoted each one individually which took a few extra minutes but i think i have kind of broke it.
you might see a different number of pages ,as I have 20 posts per page you might be set on 10 per page
i might have to clear my multi-quote list as i now have about 40 quotes in it.

[TZ350]

More adventures with the Suzuki RG50



Green line was the original piston port cylinder. Red line after it was converted to rotary valve and the Blue line is RV with a smaller 24mm carb.

The smaller carb Blue line has a strange dip in it. Not sure what that means but it looks like something that has become more pronounced as we have progressed.

The take away looks to be that the smaller carb and inlet tract better suit the rotary valve timing.

[wobbly]

My take is that you have a bunch of power down at 9000 , how often during 1 lap are you down there Vs every gearchange up at 13,000.
Intake length is critical as it affects the mixture curve alot more in a RV over a reed - I think that is where you need to start playing.

[flyonly]

Here is a different supercharger approach to Alex on a 2 stroke. https://youtu.be/u3UFuCxZ6zs


Sent from my iPhone using Tapatalk

[F5 Dave]

Rob. To be a fair comparison, did you not have a vibration fuel frothing problem before? Did you cure that on the bigger carb?

As an aside I very occasionally buy a Dirtbike mag ADB. Mostly it is adverts and race reports that I could care less about. They had an article on Lectron carbs.
The Dyno doesn't lie.

The tuner writing the article had some poxy DR650 that only put out 33hp and was measuring very lean on his sensor as a result of after market pipe and filter from memory.

So they wibbled on about the Lectron advantage and fitted one. Instant 3hp over quite a range.

Sounds great. But, um. . . So what if they'd thrown another jet in the old carb? . . .
But the dyno doesn't lie. Results and big cash prizes could be yours.

Sigh.

Maybe next year's issue (when i next buy one) will be better.

[TZ350]

Rob. To be a fair comparison, did you not have a vibration fuel frothing problem before? Did you cure that on the bigger carb?

Yes you are right. Not a fair comparison. I never cured the fuel frothing problem with the RV at 8k rpm on the big carb. For the smaller carb I fitted a new manifold and wedged some extra rubber under the front engine mount. Less fuel frothing and what bad-ish patch there is has now moved to 10k rpm.

I guess the best comparison to see where we are. Is between the current low fuel frothing small carb RV Blue line and an early old Piston Port/Case-Reed big carb Red line.

I expect to be able to improve the Blue line a bit more.