Omega Owners Forum

Please login or register.

Login with username, password and session length
Advanced search  

News:

Search the maintenance guides for answers to 99.999% of Omega questions

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.

Messages - laney101

Pages: 1 ... 8 9 10 11 12 13 14 [15] 16 17 18 19 20
211
Omega General Help / Re: V6 plugs
« on: 22 November 2016, 12:13:40 »
Dont know how to cross reference part numbers haha

212
Omega General Help / Re: V6 plugs
« on: 22 November 2016, 11:41:53 »
Thats the ones im thinking of

Euro got a offer on at moment

Denso 2 prong set of six 15.52. Inc vat
Product code 408775340 says for 3.0

 When i put in reg for my 3.2
Denso 2 plugs for six are 18.31 inc vat
And product code changes to
408775310

 Though they would be same

Can anyone shed light

Thinking of just getting ngk ones of ebay haha


213
Omega General Help / Re: V6 plugs
« on: 22 November 2016, 11:17:21 »
I do mine every other service .. can get six two prongs ngk for like 20 quid so every two years for me which is only 14-16k


4 prong ones seem exspensive

I got trade card and cheap from vauxhall but local dealership doesnt accept it so i have to travel to use it

214
Omega General Help / V6 plugs
« on: 22 November 2016, 10:28:46 »
Are all v6 spark plugs the same 2.5,2.6.3.0,3.2

4 prong spark plugs ??

215
Omega General Help / Re: Key fob and car battery
« on: 22 November 2016, 10:28:09 »
Ok ill order new fob insert of ebay cherrs guys

216
Omega General Help / Re: Key fob and car battery
« on: 19 November 2016, 00:09:51 »
New battery in fob and switches are all good

Check state of fob battery holder, and its microswitches.

217
Omega General Help / Re: Key fob and car battery
« on: 18 November 2016, 16:47:38 »
Done that several times does not do anything

218
Omega General Help / Key fob and car battery
« on: 18 November 2016, 10:57:11 »
Left car on driveway for a week while on holiday came back car battery dead .. was going fujny anyways so replaced with new one all fine except key fob doesnt work now

Tryed the turning key and then pressing buttons and otuer things..

Anyone know what to do or what correct sequance is ??

219
Omega General Help / Re: injectors
« on: 10 May 2016, 22:31:42 »
Not really no and arsy sarcasm isn't welcomed

Who mentioned vxr injector because I didn't? They Wouldnt ever be of any use. be high flow rate for turbo application.

I asked about 3.0/2.5 because got offered a set simply seeing if same flow rate and work ok .. They aren't same so all good I'll hold out for 3.2 injectors

Altering spark plugs only good if altering thermal efficiency of engine or running forced induction to get right burn.

Air filter pointless half the time a cone will cause heat soak and a updated panel filter will kill a man sensor or not be as efficient as a genuine one



Vectra/Insignia VXR injectors and regulator will get more fuel in, but good luck getting the ecu to keep up...

You need to get more air in too, or you just get unburnt fuel, washing down the bores. Or filling up the pre-cats and causing flames out the back,,,,circa late 80's touring and rally cars..


I wonder if the next question will ask which hotter/colder/shinier/gimmicky sparkplug is 'better'?

Or which air-filter,, (KN,piper-cross, or big cone strapped to the airflow meter.

220
Omega General Help / Re: injectors
« on: 09 May 2016, 18:38:30 »
So the 2.5 and 3.0 injectors have a smaller flow rate.. is that at same pressure or different pressure

No because they're smaller ;) one of the reasons the 2.6/3.2 is marginally less economical...

221
Omega General Help / injectors
« on: 09 May 2016, 12:09:19 »
Im wanting to get a spare pair on injectors to have them cleaned and then swap mine out

Queation is is there any difference between 2.5,2.6.3.0and 3.2 injectors some blue some grey...

And is there any benefit to fitting blue ones from 2.5/3.0 to my 3.2?

222
Omega General Help / Re: exhaust v6
« on: 09 May 2016, 04:32:00 »
i run super unleaded anyways all the time. but shell v-power. i know it automatically adjusts timing says in handbook :>

they may not be overly restricted but it still hasa terrible restriction at precat the bend isnt smooth in downpipe due to it. so i think 3.0 cat pipes be best found new type approved on on cat2you.co.uk 80quid each so thinking of buying them and welding in second lambda boss.

then going to look into recon injectors to make sure they are spot on...

then a possible remap

223
after a pair of 2.5 / 3.0 downpipes for my omega im assuming both are the same. want to loose pre cats on my 3.2

224
Omega General Help / Re: exhaust v6
« on: 08 May 2016, 19:24:18 »
2" lovely that great to know. I wont be going bigger as that is pretty much spot on considering its a dual pipe system. if was converting to a single pipe system which im not 2.5" would be ok then hence not buying a jetex as 2.52 dual pipe system to big.

this is not a all singing all dancing engine and there is nothing on it that cannot be improved.(as with any engine) yes its modern and designed well.. but as with all engines its compromised for the global market. i work for jaguar land rover as a engineer and even our engines out the box could be improved as can fords ecoboost we use. they are made and deisgned to work well in all climates and meet all emissions standard for the market its sold in. not optimised for one place.

with throttle bodies yes you would see 300bhp no problem i believe But power would be shifted up range and it would alter characteristics of engine drastically to something i wouldnt like..

even on engines with three angle valve seats you can still improve them by altering the angle of each section and maybe placing in a 4th angle to move from stepped seats to pretty much round seats with very little flat on for valve.. this is all normal tuning practice depending on how fat you want to go..

the omega engine develops ok power standard around 217bhp. removing pre cats, and swapping 400 cell cats for 200cell cats would make a noticable improvement plus removing pre cats you alter the bend in downpipe allowing for smoother flow. doing this and then having it mapped to suit the altered exhaust you will see easily a 10% improvement over std power.

a good remap (i know omega is n/a so gain not big) to set fuel and ignition up for our climate and fuel plus mods to engine will see a few % on its own so couple that with a improved exhaust system(even fitting 3.0 downpipes instead of 3.2 downpipes) will see a improvement. not to mention the fuelling map can sometimes be a little lean top end you would gain there.

all little improvements add up. if i can gain 20bhp id be happy as previously stated a 3.0-3.2 is very different so little power increases you do make difference..




The stock twin exhaust on my 3.0l is 52mm in diameter. That's pretty big for the 1.5 engine feeding each one! The chance of you liberating 20-30hp with your suggested 'de-restrictions' is very poor. I would actually want to see proof of such restrictions before going any further, all you're likely to do is to change the volume/tone of the exhaust. Getting that much power from an expensive aftermarket cam swap might be realistic on such a small engine.


I have 3.2 manifolds on my car, and they make a small but noticeable improvement to how the quickly the engine revs over 3500rpm, but I doubt there is any measurable extra power from them. I fitted them because they became available at a low price just before I lifted the heads to replace blown gaskets; having done that, the cost/benefit/hassle ratio doesn't justify the hassle of fitting them on their own.


The V6 is a carefully designed modern engine, made using high quality castings and machining techniques: most of the traditional porting procedures are redundant as there are no misaligned bores, steps, large valve guides, massive single-angle valve seats etc. Even the manifolds and plenum match effectively, so any improvements are likely to be small and come at the cost of of proper, time consuming  development rather than the  quick skim with a die grinder that makes such a difference to Mini engines(for example).


I would expect a fully developed 3.2 V6 with individual throttle bodies to make well over 300bhp, but with a ball-park cost of about £5000 it's never going to be cost-effective. Nor is it likely to be the sort onengine that would suit an Omega.

225
Omega General Help / Re: exhaust v6
« on: 08 May 2016, 15:25:34 »
I not changing exhaust manifolds and not mentioned changing them... there too much hassle invovled plus getting correct length primaries in such a small place isnt worth the cost of them. Plus most manifolds will alter power delivery where as standard ones are set to allow a flat torque curve across most of rev range so they are fine..

Cat back exhaust again i dont need a new one one thats one it completely fine not gonna swal for another md steel one... as in last post i decided might as well keep my system now as its quiet and works well..

3.0 downpipes yes i know are less restrictive one thwy have a smoother bend because of no pre cat and due to single cat is better designed.. however theu are all old now... so cats will be not as good as new plus most will be rusty not to mention hard to find.  Hence my reasoning behind getting a set of downpipes made with sports cats in them...

If i could find a good set of genuine 3.0 downpipes id fit them but not copys as copy cats are sh1 t .....

Head removal?? Where did thay come from never mentioned that at all.. this hread is about exhaust

Also i know not to vear to far from std port hence why when someone said fit jetex i said NO.... 2.5" bore on a twin pipe system to nig in my opinion ... on n/a anyways.
Hence my original question in first post what is std bire size and no one seems to know...


And when someone says withoit a supercharger or turbo theres not a lot of power to be had i say obviously not that into engine and tuning work...

Easy to get more power ... cams ..exhaust ..ported head... ported inlet... standalone management alter fueling and ignition ... .. cermaic coat valve train and pistons .. but this would shift power up rev range and takeaway from being a nice usable car hence why not doing it... plus cost

But i strongly believe derestricting the exhaust within reason shouldnt alter npise to much give better flow... have inlet and plenum ported and then maybe mapped..
Should see a good 20-30bhp which is only 10-15% increase but you will notice it. Same way you tell diffrrence between a 3.0 and 3.2


Pages: 1 ... 8 9 10 11 12 13 14 [15] 16 17 18 19 20

Page created in 0.025 seconds with 19 queries.