H2 - Busa engine
This is another fantastic engine design by John Hartley. And we are pleased to be a part of it and will offer this engine in 1485cc - 240hp, 1558cc - 260hp, or 1596cc - 270hp and 1485cc - up to 600hp turbocharged options to make the strongest and lightest engine available. This engine uses the brillaint Suzuki hayabusa topend on a billet bottom end which is fully dry sumped.
It can be supplied in kit form or complete to any of our tuned specifications. The bottom end is machined 6061-T6 billet. It can be mated to many gearboxes. It uses a 4 stage dry sump system which from bottom of engine to centre line of crank is 116mm. It uses a 140mm dia clutch and 215mm dia flywheel, it can be mounted a lot lower than a stock hayabusa engine. The engine only weighs 65kg (20 Kg lighter than stock busa engine with internal bike gearbox).
 |
 |
 |
 |
 |
 |
| H2 Busa 4 Cylinder engine prices and specifications | |
| 1485cc, 1558cc and 1596cc options available | |
| 1485cc (72mm stroke, 81mm bore) | |
| Suzuki required top end engine parts as below:- | £1,600.00 |
| · Cylinder head complete with valves, springs, valve buckets, shims, etc | |
| · Cylinder barrel | |
| · Throttle bodies with stock injectors | |
| · Cam cover, seals, inlet rubbers, gaskets, clamps, etc | |
| · Ignition coils | |
| Hartley bottom end , dry sumped, with parts as detailed below:- | £10,000.00 |
| · 6061-T6 Billet crankcase, dry sump, front cover and rear cover | |
| · 60 amp mini race alternator | |
| · Flywheel for 5.5" clutch and starter | |
| · 40mm billet velocity stacks, adapter seals and valve cover nameplate | |
| · Same parts as describe above for the H2 | |
| · 72mm 4340 billet and nitrided crank with 42mm journals | |
| · Carrillo Custom H beam connecting rods | |
| · Cylinder base shim plate with O-ring seals | |
| · Heavy duty 12mm cylinder studs | |
| · Cam chain, crank drive sprocket, side chain guides. | |
| Engine labour to fully build | £600.00 |
| Pace 4 stage CD 2000 oil pump with fittings for all 8 ports | £800.00 |
| Total | £13,000.00 |
| Available options for the H2 BUSA | |
| Ø Custom rear engine plates to match customer’s bellhousing. | £500.00 |
| Ø Plenum kit- clear polycarbonate plenum and base. | £200.00 |
| Available Engine options | |
| High Lift camshafts with adjustable cam sprockets for road and race | £350.00 |
| Race only camshafts with adjustable sprockets and uprated valve springs | £700.00 |
| High Compression CP Pistons (choice of 81mm, 83mm, or 84mm) | £500.00 |
| Oversize Barrel 83mm (1558cc on 72mm stroke) | £400.00 |
| Oversize Barrel 84mm (1558cc on 72mm stroke) | £400.00 |
| Gasflowed Cylinder head | £400.00 |
| high capacity billet fuel rail (-6 JIC fittings each end instead of stock push on type) | £100.00 |
| uprated 480cc fuel injectors and adaptors | £260.00 |
| Turbo low compression 81mm pistons | £500.00 |
| Electronics options | |
| 1. MBE full stand alone ecu, wiring harness, injector sub harness, etc | |
| MBE9A4 ECU plus wiring harness and sensors, etc | £530.00 |
| wiring harness | £420.00 |
| injector sub harness | £50.00 |
| total | £1,000.00 |
| Dyno and engine testing | |
| Dyno mapping, running in and test | £300.00 |
| Dyno fuel, oil, consumables | £50.00 |
| total | £350.00 |