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Please play nicely.  No one wants to listen/read a keyboard warriors rants....

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Author Topic: tuning  (Read 4332 times)

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Markjay

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Re: tuning
« Reply #15 on: 20 April 2007, 03:09:38 »
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mine ex cop car so what changes have been done to car ive been told uprated cams chip remap is this true that this gets done my meega is very fast after 2500rpm and i think lsd diff as slips well but tips on how to tell if right would help thanks


As far as I know Omega cop cars have uprated suspension and some had LSD, but standard engines. Having said that, I think that Mark DTM suggested some time ago that his ex-plod had a higher rev limiter than standard....
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Gaffers

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Re: tuning
« Reply #16 on: 20 April 2007, 04:57:19 »
How difficult is it to fit one of these lsd to a non MV6, and does it have any implications?
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Markjay

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Re: tuning
« Reply #17 on: 20 April 2007, 14:42:01 »
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How difficult is it to fit one of these lsd to a non MV6, and does it have any implications?


You'll have to find one first.....

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palmer3914

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Re: tuning
« Reply #18 on: 20 April 2007, 20:07:52 »
hi guys new to the forum .. but may well be able to shed some light on this issue ........

i have a 3.0 omega which i use as a track car...... was a cheap way of having fun..... but with everything i ever do i turn it from cheap to expensive .... without even trying..... ha ha ha

mine was a 1995 3.0 manual ELITE ex-cop ......... and in the last 9 months i have tried lots of strange things with it.....

early cop cars where infact elites not MV6's as they hadn't made Mv6's yet..... but the cop elites were pretty much a test bed for the MV6.... the shocks were MV6 items before they even existed... as were springs..... 120amp alt instead of 90amp..... and ALL came with a plated LSD diff.... ratio's were no different lsd to non lsd. manual were 3.70-1 and auto 3.90-1

i know what happens if you change diff's as i have 3 x LSD diffs 3.70-1, 1x 3.90 and finally 1x4.22-1

the 4.22 gave it quicker accel but only just and it topped out at about 140mph off limiter so you lose top end by about 10mph..... but your forever changing gear and really only bebifits a revvy engine not the lower revving 3.0... i think either stay with the 3.70-1 or go for a happy medium and grab 1 out of a 3.0 auto which is 3.90-1. ------- NOT a 2.5v6 estate auto though as these are the 4.22 ones.

BUT IT WAS A LITTLE RUSTY MY 95 M plater so have upgraded to a 2001 MV6 ex cop again and this is to be the new track car.

the only uprated suspension cop cars had was on estates and had higher poundage springs at back due to carrying more equipment.......

Engines are simply standard as is ecu no mods chips or anything.... may be a little quicker down to fact they have basic trim, no sunroof and no goodies so are infact a little lighter.

1 other thing that im still trying to track down is these face lift ex-cop estates 3.2 only mind you .... and mersyside police had 1 off closer ratio gearbox's that allowed the 3.2 estates break the 8 sec barrier 0-60mph.......... but as prob guess they are hard as fook to find.....

hope this helps a little...

thanks :)


oh and forgot all diff's interchangable LSD or NON LSD 2.0/2.2 all way to 3.2.... all that may be needed is a prop coupling if putting 3.0 diff on 2.0 etc etc...... as for problems ... none...... apart from if you fit a lsd diff ..... you may start spending more time in the car!!!!! ha ha ha
« Last Edit: 20 April 2007, 20:43:19 by palmer3914 »
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M-Tek Performance

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Re: tuning
« Reply #19 on: 26 April 2007, 11:55:12 »
If you want to go drag racing, buy something else!!

however, we can do a chip (£160.00 - not the cheapest, but then we arent some eBay fly by night company who wont offer you any backup etc) which has the latest ecu software, and its written to make sure its correct for you ecu, as the eBay ones arent!

you will not get 300bhp from an Omega V6 engine without ALOT of work and money spending, by which time you could've bought something that would be faster!
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TheBoy

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Re: tuning
« Reply #20 on: 26 April 2007, 18:31:41 »
Quote
mine ex cop car so what changes have been done to car ive been told uprated cams chip remap is this true that this gets done my meega is very fast after 2500rpm and i think lsd diff as slips well but tips on how to tell if right would help thanks
Generally no changes engine wise over standard.  Other mods such as uprated electric etc.  LSD makes it lower geared over non LSD...
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palmer3914

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Re: tuning
« Reply #21 on: 27 April 2007, 10:16:29 »
Sorry THE BOY i have to dis-agree ............... LSD MAKES NO DIFFERENCE IN GEARING  :-[

all manual 3.0 diffs are 3.70-1 ratio as is the LSD one... auto's are 3.90-1

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Dazzler

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Re: tuning
« Reply #22 on: 27 April 2007, 14:00:25 »
mine ex cop car so what changes have been done to car ive been told uprated cams chip remap is this true that this gets done my meega is very fast after 2500rpm and i think lsd diff as slips well but tips on how to tell if right would help thanks

LSD- Jack up the rear of the car and rotate one of the wheels, if the opposite wheel turns the same way then you have an LSD ;)
As far as I am aware there were no real performance mods to the old bill cars only that they were a bit lighter(less gadgets) apart from that and the LSD they were pretty much standard.
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palmer3914

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Re: tuning
« Reply #23 on: 27 April 2007, 20:05:36 »
the turn the wheel 1 way test doesn't work on omega as its plated ......  :(

works on things like a sierra cosworth due to viscous lsd.... but not a plated omega.
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