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Really like building small 1/24 and 1/25 cars from model kits as they're readily available for reasonable prices and the same slot parts for 1/32 builds can be be used.
The Monogram 1/25 Porsche 904 model kit has nice features including an opening engine boot and bonnet for a static build, but aren't necessary for a slot car. Glued and epoxied them in place as well as the front and side valences that were cut free of the clamshell chassis and glued to the upper body. There's a bit of a twist at the back but at least the front and side valences sit evenly.
Gathered the usual pieces for my larger scale small car sidewinder chassis.
.055" piano wire - main rails and front axle uprights
.064" x 3/4" brass strip - guide tongue support plate
.064" x 1/2" brass strip - guide tongue
.064" x 1/4" brass strip - motor pod support cross members
5/32" brass tube - guide tube bored out to 9/64" to fit a Sloting Plus Universal guide
1/8" brass tube - front axle tube
3DRon resin-printed S can motor pod fitted with Parma 3/32" x 3/16" axle oilites
.032" x 1/2" brass strip - side pans
.032" piano wire - side pan flexi hinges
Got it rolling and powered with,
front wheels/tires - Mitoos 17 x 8/Paul Gage urethane 21105
rear wheels/tires - Mitoos 19 x 10/Paul Gage urethane 21105
motor - Scale Auto, 30K red can
gears - Slot It 10t, 6.5mm pinion, Slot It 36t, 19mm spur
Runs really well with a planted feel in the corners and has good acceleration with the 3.6:1 gear ratio.
Mounted the body with my usual tri-post set up.
Sprayed the body with Tamiya TS-30 Silver Leaf and paint detailed the window and headlight lense surrounds in flat black. Finished off with applying the kit's finicky, thin decals.
Kit's wheels were cut down into inserts and brush painted aluminum. A driver figure will be sourced as the build doesn't seem complete without one.
Good performance and modelling outcome.
Dan
The Monogram 1/25 Porsche 904 model kit has nice features including an opening engine boot and bonnet for a static build, but aren't necessary for a slot car. Glued and epoxied them in place as well as the front and side valences that were cut free of the clamshell chassis and glued to the upper body. There's a bit of a twist at the back but at least the front and side valences sit evenly.
Gathered the usual pieces for my larger scale small car sidewinder chassis.
.055" piano wire - main rails and front axle uprights
.064" x 3/4" brass strip - guide tongue support plate
.064" x 1/2" brass strip - guide tongue
.064" x 1/4" brass strip - motor pod support cross members
5/32" brass tube - guide tube bored out to 9/64" to fit a Sloting Plus Universal guide
1/8" brass tube - front axle tube
3DRon resin-printed S can motor pod fitted with Parma 3/32" x 3/16" axle oilites
.032" x 1/2" brass strip - side pans
.032" piano wire - side pan flexi hinges
Got it rolling and powered with,
front wheels/tires - Mitoos 17 x 8/Paul Gage urethane 21105
rear wheels/tires - Mitoos 19 x 10/Paul Gage urethane 21105
motor - Scale Auto, 30K red can
gears - Slot It 10t, 6.5mm pinion, Slot It 36t, 19mm spur
Runs really well with a planted feel in the corners and has good acceleration with the 3.6:1 gear ratio.
Mounted the body with my usual tri-post set up.
Sprayed the body with Tamiya TS-30 Silver Leaf and paint detailed the window and headlight lense surrounds in flat black. Finished off with applying the kit's finicky, thin decals.
Kit's wheels were cut down into inserts and brush painted aluminum. A driver figure will be sourced as the build doesn't seem complete without one.
Good performance and modelling outcome.
Dan
Attached Files
.................with that motor, 110gm weight, and ,the tall tires you are using, going to a 19mm x 38T spur, would not be a bad idea 
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