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Mykk
Mykk New Reader
2/9/25 9:50 a.m.

Hello fellow enthusiasts,

The current BMW V8 powered Tbucket build has been on the road for  just over 3 years now. Its debut event moving under its own power for the first time was the 1/8th mile Kingman Street Drags in Oct of '21. At that time the pre-tech inspection a week before the event gave a small list of things to address. I did and had a fun, nerve wracking, three days at the event. In Sept of '23 I took the car down to Tucson for the 1/4 mile Roadkill Zip-Tie Drags. At that event the tech inspector did not like the car at all and would not let me run the event. 

Honestly the car has just been my small town cruiser, bar hopper, car show and cruise-in attender. The car makes you work for the drive,  after a 20-30 minute drive all of your senses are buzzing, vibrating, ringing and exhausted. Feeling every pebble in the road the entire way. 

So, it's not a good race car and It's not a good street car. I'm thinking it's time to rebuild the thing with street suspension in mind. Building a 2nd version of the car with the lessons learned from the first one and trying some new, unconventional, ideas that have been rattling around in my head. Building a simple & clean street cruiser utilizing the drivetrain, wheels, front axle & brakes from V1. 

Following the same modus operandi, starting with a Speedway motors bare T frame and Tbucket fiberglass body: 


Digging out the spare Jaguar IRS, this one has a 3.54:1 gear and a "Powr Lok" posi:



This body is listed as a '25, but it appears identical as the '23 tub. This one is going to have a door for no other reason than the version with the door was slightly cheaper than the one without a door. 



The plan is to keep the kicked up section of the frame inside the body and hang the differential off the back on a perch. 

 

 I had an idea to use a cheapy pendulum laser level to align things during the build, and so far this little thing has become invaluable.



Cleaning up that jag diff: 



Tackling other projects: 

I'm sure a more talented fabricator could make a tank to fit and utilize the spacer better, I am not confident enough to make a tank nor have the ability to pressure test it and verify no pinholes in the welds. So mail order parts it is: 

This next idea sounded good in theory, but the final result is just meh. Using the simple mechanical fuel level gauge that came with the tank. No extra components needed, simple design that works, keep on an eye on fuel level getting in and out of the car instead of from the driver's seat. Watch the fuel level while filling the tank. The problem is, I don't like the look of it. 





Mounting the '50 Pontiac tails and a high mount third brake light, mocking up a painters tape euro offset stripe: 






I've wanted to rear face the caliper mounting on the center section, I'm going to give these VW conversion (ghia) calipers a go. They need some minor grinding inside for more clearance on the rotor and the pad grabs only the outter 1/2 of the rotor but I think it'll be alright. I am also using spacers behind the rotors to help correct the wheel camber angle at lower ride height. 





The rear perch is a  1/4" plate that was cut and bent by SendCutSend using my design that a friend helped convert into a digital format. The perch has a 5° kick up angle for the center section allowing a 0° pinion angle in the frame. The drivetrain will also have a level 0° mounting in the frame, but will be at different heights and the pinion is off center so there will still be a driveshaft and Ujoint angle. 



With metal dowels in the control arm brackets there appears to be a 3ish° downward angle of the radius arm pivot point from whatever application this differential came from. I have 0° brackets from an XJ6 on order to level the control arms and bring that pivot point back up into the frame. 

 

Moving on to the center mount section for the steering gear and tank mounting

Modifying and reversing a Tri-5 belair style steering gear to use for the cowl steering, the previous box was from a 70's ford truck with a 24:1 ratio. This tri-5 gear has 16:1 ratio, a super long input shaft I can cut down where I want it and will have a cleaner look. 

I'll need to add another mounting tab to the gear to solidify the mounting, but it'll work. 

It's been two months into the new build and it's tough not to get scatter brained with so much to do, starting a piece of the project, needing to order parts, starting another piece of the project while awaiting parts, ordering parts for the new project....etc. With the majority of big components laid out where they are going to be I want to focus starting from the rear of the car and then working my way forward. Please check back as progress is made and thank you for checking out my project. 


 

 

84FSP
84FSP PowerDork
2/9/25 10:00 a.m.

WOW - lotta work happening there.  Love the laser use and basic garage effort on squaring things.  Makes this look doable for the rest of us noobs.

SV reX
SV reX MegaDork
2/9/25 10:38 a.m.

I have an identical small laser. They are invaluable.   
 

What were some of the things the tech inspector at the Roadkill drags didn't like?

Mykk
Mykk New Reader
2/9/25 10:42 a.m.
SV reX said: ...What were some of the things the tech inspector at the Roadkill drags didn't like?

He wanted a full cage 

SV reX
SV reX MegaDork
2/9/25 10:44 a.m.

In reply to Mykk :

Was it fast enough to require one?

Mykk
Mykk New Reader
2/9/25 10:53 a.m.
SV reX said:

In reply to Mykk :

Was it fast enough to require one?

No, but he didn't know that since it hadn't run the 1/4 before. At the time that track was sensitive to Tbuckets, at a previous Roadkill drag event there a Tbucket that crashed in to the wall, caught on fire and the guy was hurt bad and I heard a rumor that he or his family was suing the track. 

AngryCorvair (Forum Supporter)
AngryCorvair (Forum Supporter) MegaDork
2/9/25 11:32 a.m.

Dang, you sure got a lot done in 2 months! 

SV reX
SV reX MegaDork
2/9/25 12:18 p.m.

In reply to Mykk :

Looking great!

Mykk
Mykk New Reader
2/10/25 10:10 p.m.

The Jaguar XJ6 rear control arm brackets arrived and I'm excited to report that they aligned the pivot points for the radius arms exactly where I wanted them in the frame, the pivot line is represented by the metal dowel in the brackets. 

 

Run_Away
Run_Away Dork
2/10/25 11:44 p.m.

Super cool. Looks like a blast!

dculberson
dculberson MegaDork
2/11/25 10:33 a.m.

I do love your builds! I love your attention to detail.

Mykk
Mykk New Reader
2/11/25 9:54 p.m.

Not much accomplished today, tacked in the battery mount



Spent the rest of the morning degreasing and painting misc differential parts. It doesn't look like much but this is hours and hours worth of work to clean these up. 

ae86andkp61 (Forum Supporter)
ae86andkp61 (Forum Supporter) SuperDork
2/11/25 11:00 p.m.

Nice work; thanks for sharing! I don't know about these types of builds, but I'll enjoy following along and learning from yours!

A thought on the fuel level gauge...find/modify/make something round into a cover of sorts, leaving only the glass and face exposed. Plate, paint, or wrap the cover to have more vintage look, like chrome.. If the cover is too big to look good chroming the entire thing, maybe it can be a stepped cover that makes the look into more of a body-colored pod with chrome bezel? You might also be able to change out the face on the gauge? Just spitballing here...

Colin Wood
Colin Wood Associate Editor
2/12/25 9:19 a.m.

This looks absolutely insane.

I love it.

Recon1342
Recon1342 UltraDork
2/12/25 9:22 a.m.

The first one was pretty awesome. Can't wait to see how this one turns out...

Mykk
Mykk New Reader
2/12/25 6:18 p.m.

Todays project; mounting the fuel tank:

 

 

 

 

Shavarsh
Shavarsh Dork
2/13/25 12:35 p.m.

I really enjoyed the last build, stoked to follow v1.5! Also IRS FTW!

Mykk
Mykk New Reader
2/19/25 6:31 p.m.

Todays project. Modifying and mounting the pedals:

 

 

Mykk
Mykk New Reader
2/21/25 8:55 p.m.

A leaking brake hose, broke bolt and misaligned front axle to the frame on Bucket #1 prompted me to pull it and move it over to v1.5 for a test fit. 

Looking rather goofy with the wrong headlights and the wrong tires. Moving the radiator and grill forward another inch helped. I think leaning the grill back a bit and moving the headlight stands (with the correct large '34 commercial truck headlights) a bit back tucked into the grill will help even more. 

 

 

 

 

Mykk
Mykk New Reader
2/23/25 7:38 a.m.

I'm talking myself into shortening the frame. Moving the radiator, grill & headlight stands up to just behind the front crossmember and spring perch then omitting the tank. 



With the center support fabbed and tacked in the frame the logical place to make the Z cut would be half way between the front crossmember and the gussets for the center support. In mock up it appears 9" would bring the radiator and cowl spacing back into proportion. 



MsPaint skills: 

 

This would also give me an opportunity to inner sleeve the frame rails right about where the motor mounts will line up on the frame. 

 

 

Recon1342
Recon1342 UltraDork
2/24/25 12:39 p.m.

In reply to Mykk :

How much will shortening the frame affect handling?

Mykk
Mykk New Reader
2/24/25 5:03 p.m.

In reply to Recon1342 :

Even after shortening it'll still be a longer wheelbase then Bucket #1, but I'll be sure to keep her under 130mph just in case. 

Mykk
Mykk New Reader
2/24/25 5:14 p.m.

Completely shifting gears for another project today: 

With the awkward shape of the tank under the cowl I knew I wasn't going to be able to fit mechanical gauges in the dash. I put some attention into making a digital dash on a touchscreen. 

Using a Raspberry Pi 5 and the full version of TunerStudioMS to a 7" DSI screen. Set it up to Autostart TunerStudio on startup, then TunerStudio conditionally autoruns AutoTune for a perpetual learning mode kinda like the Holley EFI does. The I write protected the SD card and OS for a read only Pi5 so the boot SD card doesn't currupt when power is cut off. 

 

 

 

 

 

Don't mind the zero oil pressure on the digital gauge, the sensor isn't wired into the efi controller on Bucket v1. But will be on V1.5

David S. Wallens
David S. Wallens Editorial Director
2/24/25 7:39 p.m.

surprise

Mykk
Mykk New Reader
2/25/25 3:45 p.m.

This mornings project. Modifying, cutting up and mounting a random bracket adapted over to be a master cylinders mount on the frame.

 

 

 

 

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