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General Car Chat / Modified Omega B
« on: 29 December 2013, 13:09:33 »
I still own a 1995 Opel (Vauxhall) MV6 since 2000. It is stopped since 2006 and I've done only about 10.000 miles with it. What a great car.
I also read with interest the first tree pages about performance, and I disagree with some members who have the opinion that there are not much to do to increase performance.
I did modify mine.
All the mods where carried out in 2001, my car was then dyno tested and showed 271 PS. I don't remember the maximum torque but, ok, it came up strongly at only about 4.000 revs, but the torque at low revs was not affected. Once going uphill (the tarmac was wet) the wheels started to spin in third gear and I almost lost control. I thought there was oil on the tarmac and went to check it but, I found no oil or debris.
Most of the mods were bought or carried out in Germany and I will summarize those that I still remember:
1 - Cold Air Intake filter (BMC) with 76mm hoses. The air came from the front wheel arch (a hole had to be cut for that) and there are aluminum panels to keep the air more dense or cold.
2 - New larger throttle bodies and new plenum chamber (with intake trumpets at the bottom of the plenum).
3 - Bosch performance Fuel Injectors
4 - Bigger air mass meter.
5 - Schrick camshafts with longer duration and lift for street use and adjustable cam pulleys
6 - Reworked heads (ported and gasflowed), Del West valves, compression increased by 1 point, standard springs.
7 - ARP fasteners for the standard conrods.
8 - New billet Flywheel weighing 4Kg to replace the double mass flywheel (14 Kg or so) and new clutch.
9 - Tubular exhaust manifolds (3 to 2 to 1) with exhaust heat wrap.
10 - 200 cell cats.
11 - Complete Bastuck 63mm diameter stainless steel exhaust (manifolds adapted). Only one tube from the manifolds to the silencer. Gorgeous sound within the law and TUV approved.
12 - Magnecor 8mm Ignition Cables and NGK R spark plugs.
13 - Different thermostat.
14 - Bosch high pressure fuel pump (5 Bar) with flow regulation.
15 - New chip installed in Germany. It took a day in the dyno.
16 - Steinmetz quick shift gear
17 - Front and rear strut bars
18 - Bigger discs front. All disks drilled and grooved.
19 - KW coilovers Variant 2
The rest is bog standard including of course the rev limiter. It looks like a normal lowered car.
Ok, I could go for turbos and would have much more power, certainly more than 500PS/BHP, but I would then need a new Engine management system from Motec or similar, a crank from Pankl or similar, connecting rods from Arrow or similar, forged pistons from mahle or similar, bearings, rings, intercoolers, cometic gaskets or similar, engine valvetrain, dry sump, Xtrac gearbox or similar, aerodynamic appendices, and so on.
But that's not what I wanted at all.
Performance 0-100Kmh (0-62Mph) 5.5 seconds
Maximum real speed (tested in Germany) 280Kmh (174Mph).
Being a mechanical engineer and passionate about cars and bikes I had to do something.
Now that I'm retired and old I'll do other things.
Nowadays I wouldn't have done it.
Just thought you'd like to know that it could be done.