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#Post#: 2085--------------------------------------------------
New engine build: 1588cc Flat tops chambered, Judd Longman 48's.
.interesting?
By: Jon Olds Date: January 9, 2015, 11:54 am
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Well the bloack has just come back from a fresh +0.25mm
bore/hone to suit the new flat top Mahle's forged pistons. Build
will be 12.5:1 comp. The crank and rods are std EG. Bottom end
is all new but fundamentally std with windage tray and baffled
sump. Head is a chambered Judd/Longman 40:35 semi downdraft
design, ex Button or a sister car. Ported to match an inlet
manifold that's nearly all port mating to 48DCOE's. Cam is a
reground race profile of unknown parentage, but belongs to the
engine. Valves must be longer, as the solid lifters have no
centre stud, so there should be plenty of valve spring travel.
Vernier obviously. Dizzy is a clockwork EG with more swing on
the timing. Exhaust is a side exit large bore 4:1 with four
separate inlet pipes. It will be modified to rear exit.
All these bits and pieces are going to be combined into an
engine, as I'm sick of seeing them on a shelf here.
It may go into my mk1, I'm not sure really. If I'm honest I
don't need another race engine at the moment, but I'm curious
just how much power a full race 1600VW had 'back in the day'
Do you want to be kept up to date?
Jon
#Post#: 2086--------------------------------------------------
Re: New engine build: 1588cc Flat tops chambered, Judd Longman 4
8's..interesting?
By: mitlom Date: January 9, 2015, 5:41 pm
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Hell yeah of course we do....or at least I do! I had a 1.6 EG
back in the day and loved the way they revved ;D
#Post#: 2087--------------------------------------------------
Re: New engine build: 1588cc Flat tops chambered, Judd Longman 4
8's..interesting?
By: Jon Olds Date: January 9, 2015, 6:25 pm
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It potentially could be an EG, as I have a full race flat EG
head also. I could chamber the pistons and fit the EG head. But,
I am dying to see if this semi downdraft head works.
So its going together as a chambered lump. If it has no power, I
can convert it!
Jon
#Post#: 2088--------------------------------------------------
Re: New engine build: 1588cc Flat tops chambered, Judd Longman 4
8's..interesting?
By: GEL Date: January 10, 2015, 12:36 am
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Yes please Jon ... keep it coming ;D
PS ... what do you get up to in your spare time, sleeping ? ;)
:D
#Post#: 2089--------------------------------------------------
Re: New engine build: 1588cc Flat tops chambered, Judd Longman 4
8's..interesting?
By: Jon Olds Date: January 10, 2015, 6:19 am
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I have Christmas day off, the rest of my time is 'allocated'
Jon
#Post#: 2092--------------------------------------------------
Re: New engine build: 1588cc Flat tops chambered, Judd Longman 4
8's..interesting?
By: JMR Date: January 10, 2015, 5:10 pm
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I think I should dyno it here Jon! ;)
#Post#: 2094--------------------------------------------------
Re: New engine build: 1588cc Flat tops chambered, Judd Longman 4
8's..interesting?
By: Jon Olds Date: January 11, 2015, 2:43 am
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We need a Tardis like machine to bring Sunderland closer to
Cornwall. I have bought two cars from down there in the last
year, and it takes forever to get there with a trailer on the
back
Other than that the job's yours.
#Post#: 2097--------------------------------------------------
Re: New engine build: 1588cc Flat tops chambered, Judd Longman 4
8's..interesting?
By: JMR Date: January 11, 2015, 1:56 pm
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Engine...pallet...rachet straps... ;)
#Post#: 2099--------------------------------------------------
Re: New engine build: 1588cc Flat tops chambered, Judd Longman 4
8's..interesting?
By: Jon Olds Date: January 11, 2015, 2:57 pm
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Possible. Engine dyno then. Let's get it built first and take it
from there...
Jon
Block arrived back yesterday. Some nice red paint....Will try
and pic document as we go
#Post#: 2336--------------------------------------------------
Re: New engine build: 1588cc Flat tops chambered, Judd Longman 4
8's..interesting?
By: Jon Olds Date: April 27, 2020, 2:52 am
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Not been on here for a long long time.
Anyway, that promised update, somewhat late..
Like everyone, at home tinkering..
The race EG got finished, built and is in my very light, very
old competition car.
Spec: went with the longman flat head, near flat piston tops,
GS6, 45 DCOE's and 4:1
Surprisingly flat torque curve at the top end, sounds good
Only 150hp ish though, slightly disappointing.
Used it a Croft British championship sprint, but it got rained
off, easter couple, few years ago.
The car is ready to sprint, rallycross, autocross (configuration
tweeked to suit obviously..) but
a real lack of clubman events around these days.
Being 1600 doesn't really fit 2020 classes any more.
Anyway, two other additional reasons for posting;
1. Need a 020 JMR gear linkage for the new project
2. New project is another race/rally/track/etc mk1, maybe post a
new thread, if anybodies interested..
Jon
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