2016 - Joe-405 "Mini Me Racer"

[Joe-405]

Is that a good thing to do to a Piston?
Take a belt sander to it?

My machinist told me too. It's alot better than clamping down on the outside of it. I let it cool between hits so it didn't distort anything.

 

[Poboy kartman]

Is that a good thing to do to a Piston?
Take a belt sander to it?

WAY better than taking a welder to a camshaft.

 

[Joe-405]

Enjoy the finished product finally people's. I need some carb tuning but it should be good to go now....................

 

[chancer]

I cant wait to see this thing GO!

 

[Jfive]

Looking at the steel rod and the 280 nr cam now. Hope this runs well as I want to get my wife's buggy started as soon as I move into my new house. After all I bought my 420cc cause of you. Lol

 

[KartFab]

So is that little hydraulic arm to keep the steering from wobbling?

 

[bob58o]

So is that little hydraulic arm to keep the steering from wobbling?

2SlickNick Steering Damper
https://www.youtube.com/watch?v=m7Ze4vfgmRk

 

[chancer]

Thanks Bob! I was just searching for that!

 

[Joe-405]

It went and got to speed QUICK. but it flatlined at 5750 rpm every time. So got to figure that one out.

I got a lot of videos but I got to upload them and make a final video on YouTube anyways. But I want to wait til the track passes Friday and Saturday.

Enjoy a pic with barstool and mini me in one pic..........

 

[Denny]

Joe, is the drive belt still too short? I've had that happen to me with a snowmobile before.


Denny

 

[Joe-405]

Joe, is the drive belt still too short? I've had that happen to me with a snowmobile before.


Denny

No I ordered a longer one and it's working correctly now.

---------- Post added at 07:07 PM ---------- Previous post was at 06:49 PM ----------

Score of the year !!!!!

Brand new raceseng billet flywheel for $64 shipped.

 

[Joe-405]

So I made a tc cover for the gopowersports tav 40 series kit............

And now she's ready for the track. I hope the speed isn't limited. But it sure acts like it kind of. But I'm gonna do some serious tc tuning tomorrow at the track if it doesn't rain.

 

[pRoFiT]

Joe, this thing is looking great! At this point i vote for you and/or chancer as best bike/kart for the year. I don't have any chance at beating you guys Next year!! ill build something crazy!

 

[Joe-405]

Well I have a bracket racer............ 59mph at around the 400' mark. And straight flattens out.

But.............

60' 2.26
1/8 e.t. 10.40
And 59mph everytime.

 

[chancer]

What kind of revs did you end up getting out of it?

 

[Joe-405]

What kind of revs did you end up getting out of it?

Consistent 5750 everytime. I think the cylinder head needs more airflow with bigger valves. Or I hope the flywheel and more timing maybe. I played with the carb but everything i did made it slower. So I guess first guess on jetting was spot on. Haha. Go figure !

Might be topped out on the converter also but it doesn't act like it.

My buddy told me to balance the rotating assembly. Even tho I can't feel it it could still limit it like that also.

---------- Post added at 01:03 AM ---------- Previous post was at 01:02 AM ----------

First pass I ran it out the 1/4 and it was 59mph also ! So it's got a speed limiter just gotta figure it out.

 

[chancer]

Where is your timing now?

 

[KartFab]

Do you think it's the torque converter holding it back? I don't think it's flow because even a crappy l head engine with poor flow will rev higher than that with no porting. The OHV flows much better. Then there's compression ratio, fuel, timing.


Also, I can't verify this with my own experience but I was told that you gotta gear for more torque so the engine can break through the torque converters resistance at higher rpms...

It just seems weird to me that the torque converter is almost never used in drag races. It's always the disc style clutches that are used.

 

[Joe-405]

Where is your timing now?

Stock flywheel with 6* key. The new flywheel might cure the issue it will be here today. Everybody says it needs 36* so I'm hoping.

---------- Post added at 12:02 PM ---------- Previous post was at 12:00 PM ----------

Do you think it's the torque converter holding it back? I don't think it's flow because even a crappy l head engine with poor flow will rev higher than that with no porting. The OHV flows much better. Then there's compression ratio, fuel, timing.


Also, I can't verify this with my own experience but I was told that you gotta gear for more torque so the engine can break through the torque converters resistance at higher rpms...

It just seems weird to me that the torque converter is almost never used in drag races. It's always the disc style clutches that are used.

I have a few sprockets to change. I want to get the flywheel on first tho.

And the whole tc issue with drag racing.......... I'm beginning to wonder !!!!

 

[chancer]

You have seen this right
https://www.youtube.com/watch?v=7JbNzoUjpFw

Sorry it is just new info to me so I found it very helpful.