1)
Is there a way to improve engine plenum on a omega 3.0 v6?
Someone has told me fitting a Saab 3.0v6 Plenum will help increase performance.
(or would a Vectra one be better or any other?)

2)
Also, Would forcing the multi ram to stay open (but clipping it open) increase performance.
or
Would by-passing the Muliram system and connecting the throttle body via a pipe to the air box increase performance?

Raj

1) I think you'll find they're the same ;) ;)

2) Don't you think that Vauxhall would have done that to start with if it was better ::) ::)

Is the 3.2 plenum any bigger/longer/better than the 3.0 or are they identical ? :-/

Albs wrote on 15. Apr 2011 at 22:32:

Is the 3.2 plenum any bigger/longer/better than the 3.0 or are they identical ? :-/

identical ...... apart from no EGR fixing point and DBW throttle  ;)

Cheers Andy - I lie awake at night full of curiosity about these things. :D ;D

Albs wrote on 15. Apr 2011 at 22:39:

Cheers Andy - I lie awake at night full of curiosity about these things. :D ;D

I think the fixing points for the cable throttle & DBW are actually the same ................ I was being pedantic  :y ;) ;)

Andy B wrote on 15. Apr 2011 at 22:42:

Albs wrote on 15. Apr 2011 at 22:39: Cheers Andy - I lie awake at night full of curiosity about these things. :D ;D I think the fixing points for the cable throttle & DBW are actually the same ................ I was being pedantic  :y ;) ;)

You meant no EGR and no ICV ;) ;)

Lazydocker wrote on 15. Apr 2011 at 22:58:

Andy B wrote on 15. Apr 2011 at 22:42: Albs wrote on 15. Apr 2011 at 22:39: Cheers Andy - I lie awake at night full of curiosity about these things. :D ;D I think the fixing points for the cable throttle & DBW are actually the same ................ I was being pedantic  :y ;) ;) You meant no EGR and no ICV ;) ;)

errrrrrr! Yes! That's what I meant  ::) ::) ::) ::)

Andy B wrote on 15. Apr 2011 at 22:59:

Lazydocker wrote on 15. Apr 2011 at 22:58: Andy B wrote on 15. Apr 2011 at 22:42: Albs wrote on 15. Apr 2011 at 22:39: Cheers Andy - I lie awake at night full of curiosity about these things. :D ;D I think the fixing points for the cable throttle & DBW are actually the same ................ I was being pedantic  :y ;) ;) You meant no EGR and no ICV ;) ;) errrrrrr! Yes! That's what I meant  ::) ::) ::) ::)

:D :D :D :D :D :D :D

Ultimately Raj needs to accept that he drives a 1700kg car that is never ever going to be a sports car!  ;) ;) ;) ;) :y even if it does have a spare pedal  ::)

Andy B wrote on 15. Apr 2011 at 23:18:

Ultimately Raj needs to accept that he drives a 1700kg car that is never ever going to be a sports car!  ;) ;) ;) ;) :y even if it does have a spare pedal  ::)

Indeed... If he wants to make it quicker, start with weight loss ;) ;)

rajveer.sandhu wrote on 15. Apr 2011 at 21:51:

1) Is there a way to improve engine plenum on a omega 3.0 v6? Someone has told me fitting a Saab 3.0v6 Plenum will help increase performance. (or would a Vectra one be better or any other?) 2) Also, Would forcing the multi ram to stay open (but clipping it open) increase performance. or Would by-passing the Muliram system and connecting the throttle body via a pipe to the air box increase performance? Raj

1) No
2) No

Both the 2.5 Vectra and the 3.2 Vectra have different plenums to their Omega counterparts, though on the Vectra, this is a compromise for space reasons.

Andy B wrote on 15. Apr 2011 at 23:18:

Ultimately Raj needs to accept that he drives a 1700kg car that is never ever going to be a sports car!  ;) ;) ;) ;) :y even if it does have a spare pedal  ::)

I put my mig on a weighbridge today, no load in the car but 3/4 full of go juice, it tipped the scales at 1860 kg :D,no wonder it likes a drink :'(

raj make up a new direct air flow path like a mantzel resonator , i did to mine made a great difference , alto no one on here will agree with me because they like slow slosshy migs , vauxhall never intended the majority of things that people modify on cars , also cut the cats out of it , another nice gain , also i put on a light weight flywheel and that has made the best difference of all , it revs no bother now up threw all the gears , totally different to drive now much more acceleration out of it , next im going putting the mig on a diet and losin some weight , go for it m8 im sure vauxhall didnt intend what i did but they really should have lol

Have you taken your car for an MOT since removing the cats?? What did you replace the cats with?? My understanding is that a car that was made with cats...must have cats or it will fail the MOT??

I think its car made after a certain year (1994 ?) have a certain limit on emmissions, and that is achieved by fitting cats. The Senny had cats, but afaik there was nothing to stop you removing them.
An Omega would be a different story though. ;)

Albs wrote on 17. Apr 2011 at 20:47:

I think its car made after a certain year (1994 ?) have a certain limit on emmissions, and that is achieved by fitting cats. The Senny had cats, but afaik there was nothing to stop you removing them. An Omega would be a different story though. ;)

K reg onwards ie 1992 and as they made a Senator up to M reg it means that late Senators needed their cats fitted at least once a year for MOT.  ;) ;) ;)

Nobody likes a smartarse Andy. :D ;D ;D ;D :y

Albs wrote on 17. Apr 2011 at 21:12:

Nobody likes a smartarse Andy. :D ;D ;D ;D :y

I tried my best to rid my K reg 92 Senator of its cats legally, but  failed. I still have a pair of cat pipes in my garage ............ just incase.  :y :y :y

Hang on to them for when you get your next Senny.Or I might buy them off you when I get mine. :y ;D

Albs wrote on 17. Apr 2011 at 21:23:

Hang on to them for when you get your next Senny.Or I might buy them off you when I get mine. :y ;D

Will do  :y :y :y :y

If your taking the cats of a petrol motor make sure you have a friendly MOT Tester ;)

davethediver wrote on 18. Apr 2011 at 13:11:

If your taking the cats of a petrol motor make sure you have a friendly MOT Tester ;)

Yep, not a chance of it passing the emissions test without them (and these days they don't sap a lot of power).

Kevin