I've been building a turbo ZX14R for a while. It's now rideable and everything. Soon to get a MaxxEcu. I feel like I've earned the right to suggest parts to others looking to build a turbo bike since I'm nearing the 25 grand price-point for my build.

Here's what I've picked out for to build the simplest, most cost-effective, reliable turbo zx14. Feel free to disagree. I am happy to explain/defend what I have put on the sheet. I'll update the sheet as I learn more.

Sheet-

Head:
Carpenter Valve springs
Valve Spring Swap Tool
RBM Viton seals
Cometic Head Gasket 0.030”
NGK CR10E Plugs @ 18 thou
Check for leakdown

Clutch:
SAE Outlaw Titanium clutch hardware
MTC clutch fibers and steels, billet basket, 2-stage lockup
Air/CO2 shifter to upshift under lockup load+high RPM

Block/case:
SAE Outlaw Head studs
SAE Outlaw oil system upgrade
New Main Bolts

Rotating Assembly:
Wossner Pistons 9.3:1
Wossner 3/8” Rods (MUST SHAVE ROD BOLT BY BASKET)
New Rod Bearings
New Main Bearings

Timing:
New OEM timing chain
APE manual timing chain tensioner
Valve clearance service
Stock cams and stock degree

Fueling:
Injector Dynamics ID1050X
Installation spacers
HTP in-tank fuel pump/regulator
PTFE AN6 Fuel Hose (E85 compatible indefinitely)
5/16th EFI Hardline to AN6 Adapter (connects factory fuel rail to fuel lines)
¼” vacuum line for pressure regulator
Set Idle pressure to 43PSI

ECU:
Route #1: Stock ECU. Some tuners can tune off just stock ECU. Example: Chris Boomstune
Route #2 Stock ECU + PCV for map switch for different fuels
Route #3 Stock ECU + PCV-PTi unit for tuners who do not tune solely off of stock ECU. Can add map switch for alternate fuel
Route #4 MaxxEcu. Closed loop fuel adjustments. Traction control. Boost control. Launch control. Autoshift control. Flex-fuel. Engine protection measures.

Turbo:
Route #1 RCC custom kit. Just turbo + oiling system + airbox block offs.
Route #2 Scott Davis custom kit. Just turbo + oiling system + airbox block offs.
Can also weld airbox if possible. Will lead to less headaches down the line.

Suspension:
Drag-valved rear shock
Spring appropriate to body weight
Reinforced swingarm. Extended will be more manageable to ride

Tire:
Dunlop Q5S
Dragmax
Hookup

Gearing/Sprocket setup:
Vortex 17 front (no rubber isolator)
Vortex 38 rear (steel) (This is very tall gearing. I do 85mph at 6k RPM in 4th)
3D chain with rivet master link
chain alignment tool
SAE Outlaw titanium output shaft nut
New sprocket nuts with nylon lock

* Last updated by: danmin on 11/3/2025 @ 12:39 PM *

Thanks, Dan.

Here is a comparison of "Plug and play" fuel systems on the market. Though you can DIY your own kit- unless it is the HTP kit, it will mimic the complexity of the RCC kit. This is just to show how simple the HTP setup is compared to the RCC setup, which requires running a handful of fuel hoses all over. Instead of a single fuel line to the injector rail.

I see, the HTP Pump has the fuel pump, filter and regulator all in one.

For the RCC systems, I would have thought the fuel pressure regulator would connect to the fuel pump to tell it how much to increase pressure. It makes sense that the regulator gets input from some kind of vacuum/boost sensor but from the diagram, it looks like the regulator is taking fuel away that has already been pumped and sending that fuel back to the fuel tank. ...or is that how it regulates? ... it shuts down flow back to the tank when the boost is high, opens up flow back to the tank when boost is low.

* Last updated by: Rook on 11/3/2025 @ 2:16 PM *