Search found 23 matches

by topsparks
Thu Aug 18, 2011 4:45 pm
Forum: Engines Area
Topic: 4.0 TO 4.6 IN DISCOVERY 2 WITH MOTRONICS M5.2.1
Replies: 13
Views: 7447

I know where it is Kevin,its a pig to get to I bought a rolled Disco 2 for spares and removed it so I have 2 bites of the cherry! .Got to see if I can get it to run without cats as I run on LPG (Cat not needed for MOT) and the OEM manifolds run 2 pairs of lamda's,I have a nice pair of headers I can ...
by topsparks
Mon Aug 15, 2011 8:53 pm
Forum: Engines Area
Topic: 4.0 TO 4.6 IN DISCOVERY 2 WITH MOTRONICS M5.2.1
Replies: 13
Views: 7447

There's no way two people can be that ugly!
by topsparks
Sun Aug 14, 2011 10:23 pm
Forum: Engines Area
Topic: 4.0 TO 4.6 IN DISCOVERY 2 WITH MOTRONICS M5.2.1
Replies: 13
Views: 7447

My friend works for Autologic and has the leads for our car,where abouts are you? he's near me in Iver Heath.Have a Piper 270 cam and in a private deal with Shaun (who works for a V8 specialist in Lincs) had the heads ported ,got the chap whos doing my engine to rework them as despite telling me me ...
by topsparks
Fri Aug 12, 2011 8:08 pm
Forum: Engines Area
Topic: 4.0 TO 4.6 IN DISCOVERY 2 WITH MOTRONICS M5.2.1
Replies: 13
Views: 7447

Let me know how you get on I should be collecting my tophated 96mm block this weekend,once its all put back together with an off set ground 4.6 crank will be going in my 03 Disco 2.
by topsparks
Thu Jun 30, 2011 7:57 pm
Forum: Engines Area
Topic: Which camshaft for a landy
Replies: 8
Views: 3520

Real Steel Stump Puller is the way to go,masses of torque from tick over to 5000rpm
by topsparks
Sat Dec 04, 2010 6:48 pm
Forum: Engines Area
Topic: Whats my block worth?
Replies: 13
Views: 6754

Where did you get 96mm pistons for the same cost as standard 94mm jobbies? It depends of your stroke :wink: . With 86mm stroke you can use flat top Chevy 305 + 0.04'' (95.9104mm) pistons who are avaiable in hypereutectic or forged from KB-Silvolite. An set of hypereutectic costs around 120USD on Eb...
by topsparks
Sat Dec 04, 2010 6:43 pm
Forum: Engines Area
Topic: 4.6 block swap
Replies: 13
Views: 7088

Thor and Gems are different,they are Tig welded in,but you can swap them over ,I have an aloy mig welder,but need some more practice!
by topsparks
Sat Dec 04, 2010 10:13 am
Forum: Engines Area
Topic: DISCO 4.0 THOR REBUILD TO 5 LITERS
Replies: 6
Views: 3214

Yes its me did the 5.5 give it away!,Rob wants £1800 for a short tophat lined 4.6 short engine s/h crank and rods,Elles wants £1880+vat for a short 4.6,standard new block and parts . Thought it would be cheaper getting Chessmen to do my block and as US bits are so cheap,use bigger pistons and rods a...
by topsparks
Sat Dec 04, 2010 8:31 am
Forum: Engines Area
Topic: DISCO 4.0 THOR REBUILD TO 5 LITERS
Replies: 6
Views: 3214

There are now other standard performance pistons than chevy 305 available for large bore conversions. Various comp ratios are possibly available. What are they and how much do they cost?,I found an old thread on here about using Chevy 305 pistons,my 5.5 I had in my Griff used custom Diamond pistons ...
by topsparks
Fri Dec 03, 2010 11:50 pm
Forum: Engines Area
Topic: DISCO 4.0 THOR REBUILD TO 5 LITERS
Replies: 6
Views: 3214

DISCO 4.0 THOR REBUILD TO 5 LITERS

I need to re-build my Disco 2 engine as its dropped a liner,I'm thinking of getting the block tophat lined to 96mm,using some chevy 305+40"pistons and rods(not sure of length)and a stroked 4.6 crank 85mm? need a high comp ratio as it runs on LPG,any input would be greatly appreciated
by topsparks
Wed Nov 24, 2010 6:23 pm
Forum: Engines Area
Topic: Late Disco 2 4.0 air injection engine Bosch Motronic
Replies: 2
Views: 1831

Thats the one ,they have extra boss's cast into the heads,I have an early Disco 2 engine,it has the boss's but there not machined,just blanks.
by topsparks
Tue Nov 23, 2010 10:07 pm
Forum: Engines Area
Topic: Late Disco 2 4.0 air injection engine Bosch Motronic
Replies: 2
Views: 1831

Late Disco 2 4.0 air injection engine Bosch Motronic

My engine has dropped a liner and I'm going to build a 4.6 to go in it.The engine has the Bosch Motronic system that has air injection.I would like to fit a nice pair of 28cc chamber ported heads I have.Does anyone know if you can remove the air injection or will bugger up the ecu.
by topsparks
Fri Feb 29, 2008 10:31 pm
Forum: Exhaust, Cylinder Heads, Fuel And Intake Area
Topic: Highest torque / cid ?
Replies: 9
Views: 4524

My V8D 5.5 made 370 bhp and 430 ftlb of torque!,fitted with a 404 mechanical cam,Rob reworked my standard 500 heads,GroupA rockers ,Emerald ecu and ACT triple plenum.
Griff was as quick as an LS6 powered Chim!
by topsparks
Thu May 24, 2007 9:59 pm
Forum: Forced Induction
Topic: vortech supercharing a griffith 500
Replies: 58
Views: 28395

Robs 5.5 engines are bullit proof,mine once reved to 7,200 with no problem,and trust me if I can't break it no one can!

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