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[106rallye]

There aren't too many true perf mods for the Omega, probably too heavy to use as a base for a sports car...

Do you think a single thread, perhaps read only so it doesn't get bogged down, frequently updated by a member would be enough?

No nessesarly, the weight definitely adds to the omegas drivability! I came from a car that weighed about 1000kgs less than the omega, it has to be driven completely differently but it still goes well in standard form. Also in Aus they are crazy about their holdens (and modifying them), which as far as i am aware are identical to the omega with only the body panels being different.

Naa i don’t think a single thread would do.

I've been thinking about this and I'll kick the ball rolling by trying to summarise the advice on the forum (mainly thinking about engine performance, as that's closest to my heart) into a single post. People will be better placed to add other areas - suspension, transmission, tyres, etc.

If it's there as a sticky it will perhaps stop the same questions being asked ad-nauseum.

Kevin

only i have a real hatred of stickies  

i reckon the faq section may be best place  :-/

yeah i hate stickies too, never read them n they just get in the way lol

How about something like taking the FAQ out of the General Omega Chat section and making its own sub forum (i think that’s what its called anyway lol like the for sale and wanted section) then having sections in there for things like MOT problems, General Problems, Performance. Also the ICE and Electrical, Maintenance Guides etc could be put in there.  (Baring in mind that i don’t know anything about modifying websites so if this is too much of a pain just tell me to shut up lol)

[TheBoy]

All ideas and suggestions are welcome, whether you know about websites or not

What I think we don't want is too many 'boards' (individual sections like ICE).  The current software we use cannot do sub Boards/Nested boards etc.  There is a fine line between having enough sections and having too many to that could 'split' the community.

Hence why we have to have sufficient interest in any new boards...

[Auto Addict]

All ideas and suggestions are welcome, whether you know about websites or not

...

www.acmerubbercrankshafts.com guaranteed to increase the compression ratio as the revs build up

[Kevin Wood]

I've been thinking about this and I'll kick the ball rolling by trying to summarise the advice on the forum (mainly thinking about engine performance, as that's closest to my heart) into a single post. People will be better placed to add other areas - suspension, transmission, tyres, etc.

If it's there as a sticky it will perhaps stop the same questions being asked ad-nauseum.

Kevin

only i have a real hatred of stickies  

i reckon the faq section may be best place  :-/

Good point. I meant available and easy to come across. Some forums I visit have a page of "stickies" to scroll through before you reach anything interesting

For what it's worth I think there are several topics that come up ad nauseum here, with the same answer being given every time, and this is one of them. Maybe people would look in the FAQ section and find the answer before posting. Maybe not. :-/

www.acmerubbercrankshafts.com guaranteed to increase the compression ratio as the revs build up

Now, if they could be convinced to do a rubber block that self heals after you've thrown a connecting rod through the side of it during a period of "red mist" I know a few people who'd be interested.

Kevin

[Minispud]

by performance do you mean 'chavvy' mods like exhausts and things?

"chavvy" would be sticking fiberglass on and bolt-on 5" jap cut tail pipes, thats nothing to do with performance lol

If you mean discussions on improving performance, its been discussed several times before.  Not a huge amount you can do though - mostly you're looking at rechipping for around 10%.  Air filter replacements generally do nothing (except noise), frequently lower real performance. Std exhaust is free flowing. Nobody makes manifolds (probably only 'mechanical' thing worth doing) for omegas. 3.0l cams in a 2.5 has been covered several times before.


Basically, it would seem not enough content to warrant it if that makes sense?

yeah thats the basic idea, i was thinking more along the lines of suspension (spring, shock, bushes ARB's tyres etc), engine, (exhaust, manifolds(which i can have made if theres enough interest), plugs / leads, remap's filters (which do increase performance if they are the correct part and in the correct place ) etc) then theres things like transmission (whats the best performing gearbox / diff oil, are there any bolt on diffs from other models to change the ratios, whether anyone has tried a welder in an omega, is there a short shift kit), then theres thing like weight saving, weight positioning etc.

i understand if there isnt enough members interested in the performance of their omegas to warrent its own section though. its just with the amount of posts on such few fourms, its hard to keep up if you dont visit for a few days. and the search function (have to wait 30 secs between) is just a pain in the ass lol

I agree the search is not brilliant.

There aren't too many true perf mods for the Omega, probably too heavy to use as a base for a sports car...

Do you think a single thread, perhaps read only so it doesn't get bogged down, frequently updated by a member would be enough?

 Is not the Omega as heavey, if not lighter then say a BMW 5 series or a E class Merc. Both of which have lots of tuning goods and I'm not talking about Chavvy bits, like 5" jap cut tail pipes

[TheBoy]

Is not the Omega as heavey, if not lighter then say a BMW 5 series or a E class Merc. Both of which have lots of tuning goods and I'm not talking about Chavvy bits, like 5" jap cut tail pipes

Ever thought that is because the standard cars are not properly tweaked, or use substandard components?

All the usual things - airbox/exhaust/fuel delivery - for more power are already hard to beat on a standard omega (excl exhaust manifold!).  Remapped chips can give up to 10% extra max on NA Omegas.

As for handling, again, not much to improve on, as long as system is kept working well.  Advantage of RWD is you don't have to sacrifice ride comfort of handling as you would in a rock hard FWD.

[Minispud]

Is not the Omega as heavey, if not lighter then say a BMW 5 series or a E class Merc. Both of which have lots of tuning goods and I'm not talking about Chavvy bits, like 5" jap cut tail pipes

Ever thought that is because the standard cars are not properly tweaked, or use substandard components?

All the usual things - airbox/exhaust/fuel delivery - for more power are already hard to beat on a standard omega (excl exhaust manifold!).  Remapped chips can give up to 10% extra max on NA Omegas.

As for handling, again, not much to improve on, as long as system is kept working well.  Advantage of RWD is you don't have to sacrifice ride comfort of handling as you would in a rock hard FWD.

 Has any one had their induction system checked for CFM just to see if any inpovements could be made, same with the exhaust  

[TheBoy]

Is not the Omega as heavey, if not lighter then say a BMW 5 series or a E class Merc. Both of which have lots of tuning goods and I'm not talking about Chavvy bits, like 5" jap cut tail pipes

Ever thought that is because the standard cars are not properly tweaked, or use substandard components?

All the usual things - airbox/exhaust/fuel delivery - for more power are already hard to beat on a standard omega (excl exhaust manifold!).  Remapped chips can give up to 10% extra max on NA Omegas.

As for handling, again, not much to improve on, as long as system is kept working well.  Advantage of RWD is you don't have to sacrifice ride comfort of handling as you would in a rock hard FWD.

 Has any one had their induction system checked for CFM just to see if any inpovements could be made, same with the exhaust  

The exhaust manifold is the weak link, but it seems nobody makes them.

I have seen a couple of ones with enlarged intakes and bigger TBs, made cock all difference imho.  I've seen one with a more direct intake - not sure it produced more power, but was flatter at low revs.  Same with the exhasts.  Haven't seen a properly tuned decat yet though.

[Minispud]

There are lots of high flow cats on the market, just look at say VXR8, it will have two cats that can flow more than any Omega's cats, as for the induction system the car maker will do it's best to give you best of all worlds, as we all know, it's a trade off, power = noise, Car makers love QUIET Comfortable cars  

[TheBoy]

There are lots of high flow cats on the market, just look at say VXR8, it will have two cats that can flow more than any Omega's cats, as for the induction system the car maker will do it's best to give you best of all worlds, as we all know, it's a trade off, power = noise, Car makers love QUIET Comfortable cars  

There may be small improvements to be had in the cats, but I've yet to see any improvement to the unduction system.  Most of the 'improvements' increase noise and decrease performance...

[Minispud]

There are lots of high flow cats on the market, just look at say VXR8, it will have two cats that can flow more than any Omega's cats, as for the induction system the car maker will do it's best to give you best of all worlds, as we all know, it's a trade off, power = noise, Car makers love QUIET Comfortable cars  

There may be small improvements to be had in the cats, but I've yet to see any improvement to the unduction system.  Most of the 'improvements' increase noise and decrease performance...

Taking off the cats will gain more power as the exhaust will flow better.
 I bet if someone was to have the whole lenght of the induction system tested for flow, you will find that you could impove on what Vauxhall has done and the same for the head/s and exhaust system, but it's all about the cost and time and a very good workshop

[Kevin Wood]

There are lots of high flow cats on the market, just look at say VXR8, it will have two cats that can flow more than any Omega's cats, as for the induction system the car maker will do it's best to give you best of all worlds, as we all know, it's a trade off, power = noise, Car makers love QUIET Comfortable cars  

There may be small improvements to be had in the cats, but I've yet to see any improvement to the unduction system.  Most of the 'improvements' increase noise and decrease performance...

Taking off the cats will gain more power as the exhaust will flow better.
 I bet if someone was to have the whole lenght of the induction system tested for flow, you will find that you could impove on what Vauxhall has done and the same for the head/s and exhaust system, but it's all about the cost and time and a very good workshop

The problem is, in any system, there'll be one component that is the weakest link. Change anything else and this component will still be your achilles' heel.

Yes, you might get a horsepower or two by changing other parts but it won't be worth the effort.

GM clearly went to a lot of trouble with the induction system. They didn't have to fit the complex multiram setup and it's there to give good torque over the whole rev range, particularly at low RPM which is important for a heavy car. I don't doubt that a few BHP could be gained at high RPM by removing it, but it'd be at the expense of a lot more at lower RPM and wouldn't result in a faster car on the road.

The throttle bodies are plenty large enough for 200 BHP, IMHO.

The weakest link is reckoned to be the exhaust manifolds which are how they are for packaging reasons rather than performance. Unless you change them for a tubular manifold with properly designed primary lengths rather than a "3 into 1" at the cylinder head you may as well leave the whole setup standard IMHO.

Kevin

[cem_devecioglu]

a section "how to earn more money"  will be more useful

I know what I'll do  

[motmann]

sounds a good idea to maybe list performance section if it can be done? but hey guys how fast do you want to go?? the bigger engined omegas aint disgraced by much on the roads these days and handle ok for a big old bus!!!

[Kevin Wood]

Just remembered. I have been putting all these performance musings together into a document. Watch this space.

Kevin