View single post by gmgiltd
 Posted: 10-04-2014 10:54 pm
PM Quote Reply Full Topic
gmgiltd

 

Joined: 07-10-2012
Location: Whitehills , United Kingdom
Posts: 142
Status: 
Offline
Tim - fully agree with what you are saying, but it sounds like Jim's JH is pretty close to standard and the suggestion about the airbox was more to do with toning down the racket that K&N's make.
After a modern turbo dweezel, most 907s are going to feel gutless at low rpm. For example a Landrover 2.2 diesel produces 190 hp and 420 Nm of torque at 1750 rpm and gives 50mpg in a vehicle weighing almost double what a JH weighs.

I went to 2.2 in 1984 with 12.1 pistons, 104 cams, 45 delortos, polished rods , (Sunbeam rally parts)ported head and manifold, HD clutch, uprated cooling, oilstat, electronic ignition +++. A couple of years ago it was four wheel discs, last year fuel injection with 48mm bodies and crank triggered ignition, this year it was bigger valves and an HTD vernier kit. I found that the 92mm velocity stacks were a big improvement on the 40mm ones in terms of driveability - but this could well be because of this particular configuration.

Attachment: Jennymotorsmall.jpg (Downloaded 138 times)