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Bonzi' BZ1 Mild  Modification of a Zenoah G260PUM
BZ1 Mild Modified Zenoah* Shown with a blue stock Zenoah water jacket. Seven colors available. Includes Walbro WT-644 carb. Upgrade to a WT-257 ($29.95) or a WT-813A ($39.95)
BZ1 Mild Mod Zenoah:
Advanced exhaust timing, flow port exhaust, flow port intake, piston clearance mod & 2 oil groves cut into piston.
4.5HP@16,200 RPM.Buy a BZ1 mod
$259.95With Mounts & Collet
Buy a BZ1 mod w/mounts and collet
$339.95
With Mounts & Clutch/Collet
Buy a BZ1 mod w/mounts and clutch/collet
$479.95
Counter-Rotated withMounts & Clutch/Collet
Buy a BZ1 modified counter-rotated Zenoah  w/mounts and clutch/collet
$649.95
Bonzi' BZx2 Race Modification of a Zenoah G260PUM
BZx2 Race Modified Zenoah* Shown with a purple stock Zenoah water jacket. Seven colors available. Includes Walbro WT-644 carb.Upgrade to a WT-257 ($29.95) or a WT-813A ($39.95)
BZx2 Race Mod: Advanced exhaust timing, flow port exhaust, advanced intake timing, flow port intake, piston clearance mod, 2 oil groves cut into piston, port matched case/ jug.
5.2HP@16,500 RPM.

Buy a BZx2 mod

$359.95
With Mounts & Collet
Buy a BZx2 mod w/mounts and collet
$439.95

With Mounts & Clutch/Collet
Buy a BZx2 mod w/mounts and clutch/collet
$579.95
Counter-Rotated with Mounts & Clutch/Collet
Buy a BZx2 modified counter-rotated Zenoah  w/mounts and clutch/collet
$749.95
Bonzi' BZx4 Ultra Modification of a Zenoah G260PUM
BZx4 Modified Zenoah

 

* Shown with a silver “Very Cool” water jacket. Seven colors available. Includes Walbro WT-257 carb. Upgrade to a WT-813A ($10.00)
BZx4 Ultra Mod: Raised exhaust timing, enlarged exhaust port, machined lightened and top relieved piston, (2) oil grooves for high RPM lubrication, increased compression. Walbro WT 257 Carb, BONZI’ Very Cool Water Jacket and ZeroDragSealsStainless Steal Hardware Kit, Velocity Stack, NGK CMR7H SparkPlug

6.0HP@16,800 RPM. Buy a BZx4 mod
$545.95
With Mounts & Collet
Buy a BZx4 mod w/mounts and collet
$589.95
With Mounts & Clutch/Collet
Buy a BZx4 mod w/mounts and clutch/collet
$725.95

Recommended Configuration for Top Performance: Our modified engines will achieve top performance with our pipe systems. Specifically, the BZx4 Ultra Modified Zenoah G260PUM will achieve maximum performance with the BONZÍ Race Performance Pipe. At a minimum, a quality, dry, race type (tuned) pipe is essential for all modified engines. Optimum performance will also be affected by your header pipe. For example, the BONZÍ BZx4 modified Zenoah requires a much shorter pipe than a stock Zenoah engine. Be sure to follow the manufacturer’s recommended lengths for tuning for your particular pipe configuration. If you have questions,do not hesitate to ask. Many factors will affect the performance of a modified engine. These include (but are not limited to): hull weight and type (cat, v bottom, hydro, outrigger, etc.), propellers, altitude, humidity, whether it is being run in salt or fresh water, as well your individual setup. Contact our tech support 24/7 via e-mail with any questions.

For a great deal, try the BONZÍ Power Packagewhich includes a Zenoah engine, Mounts, Collet, Clutch, Water Pump and choice of the Quiet Power Tuned Pipe or Performance Race Pipe Systems. Or opt for the package without Clutch & Water Pump if you prefer!

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Have us modify your engine!Send your engine to BONZÍ and we’ll make it perform at a higher level! Add a BONZÍ “Very Cool” Water Jacket to either the BZ1 or BZx2 mod for only $46.95.
BZ1 Mild Modification
$50.00
Buy a BZ1 mod
When being the best is the only option, BONZÍ has your answer.
From highly-competitive modified engines to hardware designed for high performance, when it comes to mods, BONZÍ has it all! BONZÍ is your one-stop Zenoah shop along with being the Zenoah R/C authority. Have a question? Contact our world-class personalized technical support and let us help you. No question is too big or too small for us to handle.
 BZx2 Race Modification
$150.00
Buy a BZx2 mod
BZx4 Ultra Modification
$350.00
Buy a BZx4 Mod
BONZÍ RECOMMENDED MODIFIED PARTS FOR YOUR ZENOAH ENGINE:
Bonzi' Very Cool Water Jacket/cooling head
BONZÍ “Very Cool”
Water Jacket v.2.0
BZ2032V2
Very Cool Water Jacket
$46.95
BONZÍ Carb Velocity Stack
BONZÍ Carb Velocity Stack (Aluminum)
BZ2026
Buy a carb velocity stack

$19.95
Walbro WT-813A Big Bore Carburetor for Zenoah Engines
Walbro WT-813A
Big Bore Carburetor
BZ2038
WT-813 Big Bore Carburetor - Buy now
$54.95
Champion Spark Plug RZ7C
NGK Iridium
Spark Plug
NGKCR8HIX
NGK Iridium Spark Plug
$9.95
Walbro WT-257
Walbro WT-257
Big Bore Carburetor

BZ2025
WT-257 carb

$44.95
Stainless Steel Hardware Package for Zenoah
Stainless Steel
Hardware Package
BZ2501
Stainless Steel Hardware Package for Zenoah
$8.95
zero drag seals Zero Drag Seals  
300 RPM Boost!
Buy Zero Drag seals
$19.95/pr.
Zenoah Race Performance Upgrade Package
Zenoah Race Performance Upgrade Package
BZ2500

Zenoah Race Performance Upgrade Package

$59.95
What customers are sayingBONZI modifies and repairs Zenoah engines