Build for a budget
What a given number actually reaches, computed against 25 chassis rather than guessed. Parts only - the car and the consumables are shown separately on every page, because they are separate decisions.
| Budget | Chassis with a complete plan | Best goal it completes | Cheapest example |
|---|---|---|---|
| $2,000 | 0 of 15 | phase 0 and a diff | - |
| $3,000 | 15 of 15 | Seat time | IS300 |
| $5,000 | 15 of 15 | Seat time | IS300 |
| $8,000 | 15 of 15 | Street and local events | IS300 |
| $12,000 | 15 of 15 | Street and local events | IS300 |
| $20,000 | 15 of 15 | Competition | 370Z |
The number nobody budgets for
All the figures on these pages are parts. The recurring cost - tires, fluids, pads, fuel, entry fees - is shown separately on every page because it is the line that puts first seasons over budget even when the parts were costed properly.
The reference point: a documented UK year-one S13 budget came to about £15,900 with six track days, and £3,400 of that - roughly a fifth - was tires, consumables and entry fees. None of it appears in a parts list anywhere.
How these numbers are produced
Each page runs the real planner for every chassis in the catalogue at that budget, at all three goal levels, and reports the highest goal the budget actually completes. The running total uses the low end of each price range, so the answer is optimistic - and the shortfall is calculated against the same number, so it stays consistent.
Prices in the catalogue are market ranges with the date they were checked, not live quotes. A welded differential at $100 to $300 is a cited figure; a category range with no published source carries a lower confidence label and says so on the part.
Why the budget does not change the order
A smaller budget changes how far down the plan you get. It does not change what comes first, and that is the part people expect to be negotiable.
Phase 0 - fluids, cooling baseline, brakes, bushings, steering wear, bearings, ignition service - is roughly $900 to $2,000 on most chassis, and it is the money that decides whether everything after it survives. A drift lap is sustained high rpm at low road speed, which is the worst case for a factory cooling system, and overheating is the most common reason a beginner's day ends early. Skipping phase 0 to afford coilovers does not save money; it moves the money somewhere worse.
Then the differential, because a car with a factory open or viscous diff cannot hold a line regardless of what else is fitted. Then safety and tires. That sequence costs well under $3,000 on most chassis and it is a complete, legitimate build.
What a bigger budget actually buys
Past about $5,000 in parts you are buying consistency rather than capability: angle, front grip, a handbrake you can trust, and cooling that holds up for a full lap rather than a corner. Past about $12,000 you are buying competition - safety equipment to a rulebook, a spares kit, and the drivetrain work to support power.
What a bigger budget does not buy is seat time, and seat time is the thing that actually makes you faster. The grassroots and Pro-Am field mostly runs 200 to 350 hp; what separates drivers at that level is not hardware.