Reducing the height of the Rover V8 Fuel Injection System

Page Under development. Will complete when I get time!

A common problem with the MGB V8's, especially the chrome bumper models, is insufficient bonnet/hood clearance for fuel injection systems.  Here are two methods of reducing the height of the Rover fuel injection system.

Example shown is a Range Rover early model with flap type air meter


Links to come to these 2 methods. I originally wrote them about 10 years ago and need to revisit linked pages as I was not happy with the descriptions

Method 1 Based on Roger Parker's experience while modifying an early hot wire system. This method involves machining both faces of the central ram stack and the base of the plenum chamber top to gain a combined height reduction of 27mm.  Suitable for flapper or hotwire type fuel injection systems.

Links to come to

Method 2 A greater height deduction is available of around 33mm from the center stack, by off-setting the flexible hose injector fuel rails. This modification only works with a  flapper type unit as the hotwire system has a fixed fuel rails, which can not be off-set. This modification was completed using an after-sale management system, these generally do away with all the extra air pipe work and many of the take-off points need to be blanked.  This method retains the plenum volume, although the stacks should still be reduced in height.

Combinations of the two can give greater height reductions, but the base of the throttle inlet housing attached to the plenum is already less than 1/4 and inch off the top of the rocker cover using method 2.

There are slight slight variations in casting between models so take these measurements as a guide only.