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  #1  
Old 05-28-2018, 09:48 PM
josh7owens josh7owens is offline
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Default 1980-ish Phoenix Kart Build and Q/A

Hey guys,

Thanks to you all I found out my craigslist find was a Phoenix Kart. I found more info on it and plan to do some reading tonight. I知 going tto use this thread as a build thread as well as an Q/A because I知 gonna need some help with the build and would like to document it as we go!

First pictures of the day I got it:
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Old 05-28-2018, 10:08 PM
josh7owens josh7owens is offline
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Next up is how it looks currently and where I知 going.

Purchase price of go kart $300

Parts ordered:
3/4 Torque converter 12T #35 chain $69.99
OMB stage 1 Hemi $82.98
10ft #35 chain $16.58
212 engine mount $28 (using it to make my own)
Autolite AR3910X spark plug $2.52
Digital tach $10
.010 head gasket $4.95
30 series Garter spring $10
30 Series Drive spring $9.95
dual Valve Spring Kit $25.99
Hemi Gasket set $15.99
Vent Filter Kit $9.95
#35 62T sprocket $18.95

Total cost $605.85

On Friday I知 picking up a Hemi to start the mild build on that and since I知 running a Torque Converter I知 not sure how my engine mount is going to go but I知 assuming I知 going have to fab one up.


Questions:

- Does the engine have to be at 7-15 degree like most mounts or can it be flat? I知 betting I have to end up tilting it for the CVT setup to work but we shall see.

- can someone help me fine a bearing cassette that will Work for this standard American kart with a 1 1/4 rear axle?

- I also need a link to spindles that will work?


Pictures below to help with answering the above questions and what the kart currently looks like.
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  #3  
Old 05-28-2018, 10:15 PM
gr8hairy1 gr8hairy1 is offline
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I used this bearing cassette on mine (I used the 1" version)

https://www.bmikarts.com/Aluminum-Be...ing_p_492.html


I'm curious about the angle of the engine too. I'll be redoing the rear end on my kart and I've been thinking I'd like it to be flat, too.
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Old 05-28-2018, 11:16 PM
josh7owens josh7owens is offline
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I like these cassettes but I’m not sure if this is the correct bearings for them.

https://www.bmikarts.com/Bearing-Cas...ing_p_493.html

https://www.bmikarts.com/Axle-Bearin...re-_p_508.html
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Old 05-29-2018, 05:32 PM
josh7owens josh7owens is offline
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I got some parts in today. I plan to work on mocking up the engine mount fabing this weekend if the torque converter shows up by Friday.

I’m not sure why all my pictures are rotated?!
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Old 05-29-2018, 06:24 PM
gr8hairy1 gr8hairy1 is offline
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It is a long talked about issue. It comes from the phone. It's just a matter of finding out what is easiest for you to get the correct orientation.

http://www.diygokarts.com/vb/showthr...eways+pictures

Note: You will not find a simple answer in that thread. Likely you have an iPhone. I do not. Maybe someone can chime in on what they do to properly post photos from an iPhone.
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Old 05-30-2018, 08:38 AM
josh7owens josh7owens is offline
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I made a trip to Harbor Freight this morning to pick up a engine and a sand blaster so I can strip this frame and all the 40 year old dirt and rust off everything.

After that I値l evaluate what I need to buy for the frame.

So far I know I need front spindles and axle bearings.
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Old 05-30-2018, 10:35 AM
gr8hairy1 gr8hairy1 is offline
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Nice! A sandblaster and a welder are my wish list.
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Old 05-30-2018, 02:16 PM
josh7owens josh7owens is offline
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Here痴 alittle update.

I got the torque converter in today so I mounted it on the new motor and test fit it on the kart. It痴 got to be raised up alittle or the converter hits the frame rail. I had some 1.5 square tube laying around so I used that to space it up.

It accommodate the torque converter the engine must get moved up some so you値l see in the pictures how I did it. The square tube will get sandwiched on the frame rails and the front tube will probably get a hose clamp through it to hold it in place.

I guess next up is to build the motor this weekend and hopefully media blast everything on Monday. My air compressor is only 30 gallon so I知 going to go to my dads where his compressor is 80 gallon and can move more air.

I put a regulator, air/water separator, and a deadmans handle on the media blaster as recommended in the reviews on harbor freight.
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Old 05-30-2018, 02:23 PM
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Nice welds.
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My name is Sylvester McMonkey McBean.
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Old 05-30-2018, 02:26 PM
josh7owens josh7owens is offline
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Quote:
Originally Posted by ezcome-ezgo View Post
Nice welds.
Thanks! I taught my self via reading welding books, watch YouTube videos, and practice.
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Old 05-31-2018, 04:04 AM
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Looking good!!!
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Old 05-31-2018, 09:41 AM
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Welding your motor mount on is kind of a no-no for racekarts, thats gonna hurt ts potential resale value if you ever sell it, and might even hurt the karts handling/turning ability . The long distance between your motor mounts 3 mounting points might end up acting as a brace and keep the karts frame from flexing like it was designed to.

Racekart frames are designed to flex as you turn corners, this frame flexing unloads weight from the inside-rear tire and transfers that weight diagonally across the frame to the outside front tire. This frame flex helps the kart handle better during high speed cornering in 2 ways:

1- Unloading weight from the inside-rear tire lowers the under-steer effect caused by live axles.

2- And transferring that weight to the outside front tire increases its gripping ability...

There's nothing wrong with building your own motor mount, but I'd suggest you clamp it to the frame at just 2 points, and keep those mounting points fairly narrow, similar to the locations of this motor mount:




A flat motor mount might work out fine for you, but a couple of potential advantages of 15-degree mounts are gaining the additional clearance needed to install racing type air cleaners, and the ability to adjust your right-rear hub/tire further inboard, if needed to improve the karts handling caricaturists. Another potential issue is; most all the tuned headers made for your application are shaped for use with 15-degree motor mounts, and your rear bumper might end up being in the way when using a flat motor mount...

See what I mean, this kart has a 15-degree mount:
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Old 05-31-2018, 12:12 PM
josh7owens josh7owens is offline
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Think you for the input. The mount isn’t going to be welded on, it’s going to be clamped. There will be a clamp from the old mount that will be reused to sandwich the mount to the frame simular to the mount you posted. I at first I’m going to try flat, if I need to put the engine on an angle once everything gets put together I’ll cross that bridge at that time. Lucky I can make absolutely anything I need to it shouldn’t be to much trouble if I need to make changed during the build.

I understand chassis flex and trying to accommodate that as well as make a solid mount.
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Old 05-31-2018, 01:43 PM
josh7owens josh7owens is offline
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To better show the illustration of how it痴 going to mount. It will be like this.
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Old 06-03-2018, 10:56 AM
josh7owens josh7owens is offline
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This torque converter setup is WIDE! I got the motor built and everything mounted for test firing but due to the huge size of the converter I need to move the engine over more to make room for the seat. I致e only got 1 I can move the axle sprocket before I would need to notch the frame.

Should I move it 1 and have the seat offset or should I get out the cut off wheel and notch this frame to side the mount over more?
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Old 06-04-2018, 09:01 AM
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I wouldn't notch the frame, moving the seat over and/or extending the motormount outward would be the better options.

Something else to keep in mind here is trying to keep your left/right weight bias as close to equal as possible, so you wont be upsetting the karts handling & turning ability. You could use a bathroom scale under each back tire and compare the weights while sitting in the kart. This would help you decide if moving the seat over, and/or moving the engine over would be the best solution for achieving the clearance you need, while also maintaining as close to a 50-50% right/left weight bias as possible.

PS:
Your seat is probably going to flex out quite a bit on sharp high speed left-turns, so make sure you have enough clearance there...
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Old 06-10-2018, 07:45 PM
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The frame has been primed!
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Old 06-14-2018, 09:13 PM
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Quote:
Originally Posted by josh7owens View Post
The frame has been primed!
Always a good time👍🏻👍🏻
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Old 06-15-2018, 03:33 AM
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I just sanded down the high spots in the primer and wiped it down with acetone to clean it. The plan it to get it painted today! I知 not sure if I値l do 2-3 coats on it.
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