mgb-v8
[Top] [All Lists]

Re: MGB-GT V8 engine choice

To: "MGB-V8 list" <mgb-v8@autox.team.net>
Subject: Re: MGB-GT V8 engine choice
From: "Scott Pontius" <spontius@worldnet.att.net>
Date: Fri, 15 Jan 1999 08:57:15 -0800
Reply-to: "Scott Pontius" <spontius@worldnet.att.net>
Sender: owner-mgb-v8@autox.team.net
-----Original Message-----
From: Jim Stuart <jimbb88@erols.com>
To: Glen R. Wilson <GlenWilson@worldnet.att.net>
Cc: mgb-v8@autox.team.net <mgb-v8@autox.team.net>
Date: Thursday, January 14, 1999 4:26 PM
Subject: Re: MGB-GT V8 engine choice


>
>Glen-
>
>According to some tech article I have somewhere, both versions of the FI
>need modifications to fit under a stock hood. The early version has both
>the base & upper portion machined total about 1" I believe. An earlier
>post covered the later version.


There are 2 styles of engine mounts available, those that put the engine in
the stock location and those such as supplied by Glenn Towery, usually
called "A/C position" mounts, because they mount the engine as far back in
the engine bay as possible to allow space at the front for an A/C
condenser-about 1-1/4" farther to the rear than stock.  These have the happy
side effect of allowing a little more space for intakes, due to the slope of
the hood (bonnet).  Using  "A/C position" mounts from Glenn and a Federal
injection plenum from a 1980 Rover SD1 (same as 80-81 TR8), I found that the
underhood insulation would just touch the top of the plenum.  I took the
plenum to a machine shop and had 1/4" milled from the bottom surface which
should give just enough clearance to let the engine rock around a bit
without contacting the hood.  With the engine in the stock location, the
plenum would require more extensive milling and probably the removal of the
EGR fitting from the underside of the plenum, as it would then foul the
valve cover.

>
>If you are only a little way from clearing, loosen the nuts that hold
>the rubber motor mounts to the body, get a long bar & the BFH mentioned
>previously, & hit the steel base of the motor mounts, on the end towards
>the body. This downward  relocation will do 2 things: 1, lower your
>engine 1-4-1/2", 2, put your mounts under compression. They will live
>much longer this way, & the engine will not "rock" as much. Reducing the
>amount the rubber stretches is a good thing.
>
>Jim


Jim, (& Glenn)
I think this only works if you are using MGB 4-cyl rubber mounts with a V8.
I installed a set of MGB V8 rubber mounts, and they are FIRM.  I tried to
convince them downward, and they compressed very little if at all.  I think
this is probably very good, in that they should control engine movement
better and last longer.

Scott Pontius
'78 MGB V8 (just days from being on the road-knock on wood)
Los Angeles


<Prev in Thread] Current Thread [Next in Thread>