A look at some of the projects that have taken place in the JMR workshop

	Modifying a pair of 48 Dellorto DRLAs for use on the supercharged Type 4 engine pictured below. This entails machining the carburettor bodies to allow fitment of turbo seals to the throttle spindles
	A close-up view of the turbo seals installed
	2366cc Type 4 with Eaton M45 supercharger, blowing through two 48 DRLAs (pictured above). The blower installation and design was carried out by owner Richard Morgan (Moggy). Final blower belt routing was altered from that shown in the picture.
	A closer look at the supercharger. Moggy carefully designed the mounting of the blower and intake system in order to fit everything into a Type 1 engine bay with the engine lid closed - an impossible feat with the DLI blower kit.
	This 2276cc Type 1 street engine, fitted with CSP Porsche cooling kit made 166 bhp @ 6000rpm on the dyno. It's being fitted to Wendy Clegg's super clean Karmann Ghia. Exhaust header is 1 5/8" stainless steel.
	To achieve desired deck height, these Pauter Machine cylinders were trimmed to suit. The extra long cylinders avoid the need for spacers when using long stroke/long rod combinations and provide full piston skirt support at BDC
	John Rathbone's turbo race engine is based on a rare ARPM two piece aluminium crankcase
	Mark Thurston's Oval, now fitted with the turbo injected 2466cc Type 4. Check out this car if you can. Look out for the Volksworld feature.
	Turbocharged, fuel injected 2466cc Type 4 finally makes it onto the dyno. With water/alcohol injection fitted and set to come on at 10psi boost, the engine made 270bhp @5500rpm and 301 ftlbs of torque at 3500rpm. These figures were taken at 12 psi boost.
	This is the pump used for the water/alcohol injection system. Once fitted, this gave an increase in horsepower from 238 to 270 @ 5500 rpm as a result of the extra ignition advance it permitted me to run. It's made by ERL.
	March 2000 saw JMR back at the Volksworld Show. Here are just a few of the goodies we had on display. Lower right - 3 pce Autocraft case with DTA engine management and Jenvey fuel injection throttle bodies.
	A closer look at our Porsche cooling kit for the Type 1 engine. The engine is also fitted with a high volume induction box system. Superior cooling, a 75 amp alternator and superb quality.
	John Rathbone's Pro Turbo car took 'best race car' trophy. A popular win.
	This is a JMR 2165cc race engine that's been in service for 7 years. During a pre season freshen up, I found a few of the lifter bores were worn. Here you can see the bores being machined to accept custom inserts.
	Preparing to insert the new lifter bore sleeves. I make the bushes from phosphor bronze bar. They offer superior wear characteristics to the standard magnesium alloy case material and should be considered even when using a brand new case if intending to use a radical valvetrain.

more ....

---

......

back to contents