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[PhilCavSRi130]

Just a quick question.... are all the cams the same exh and inlet?

Just wondered as im looking to fit all g's to my 2.5 and wondered if they are handed so to speak.

thanks in advance 

[zirk]

Same, per side, ie, G's Left / Right inlet same, so if fitting some G's to the exhaust Left / Right. then you effectively juggle all 4 in the air for 10 mins before fitting.   

Ny the way, do you have the cams yet?

[PhilCavSRi130]

Thanks for that zirk.

Not as yet but i've a mate who's breaking his MV6 and hoping he will be breaking the engine and i can have the cams. Why do you ask?

[zirk]

Thanks for that zirk.

Not as yet but i've a mate who's breaking his MV6 and hoping he will be breaking the engine and i can have the cams. Why do you ask?

Unless he has changed them in the past he will have 2 x G and 2 x A Cams in there if 3.0 or 2 x G and 2 x J if 3.2.

Asking because I have a set of G Cams still for sale (2 x G) from a 3.0.

[PhilCavSRi130]

Ok. I was under the impression that all MV6's had all g's?? I already have a set of G and A's from a 3ltr elite so if worst comes to it i can use the g's from that and match with the other pair of g's.

[zirk]

Ok. I was under the impression that all MV6's had all g's?? I already have a set of G and A's from a 3ltr elite so if worst comes to it i can use the g's from that and match with the other pair of g's.

Nope, MV6 Engine spec were the same as any other V6 in other models.

Some but not all Ex Plods had a 4 x G Cam set up.

[PhilCavSRi130]

ah so the plot thickens!! So am i right in thinking the G's normally go on the exhaust side?

[zirk]

Nope, Inlet, G Cams fitted to Inlets on 3.0 and 3.2 as standard, no G's on 2.5 or 2.6.

[Diamond Black Geezer]

Hi, apologies to hijack... so does that mean in a 2.5 when people say they 'fitted G cams' they may have fitted 2x or 4x Gs? Presumably there's a performance increase by fitting 4, not just two?

[carswaps]

I fitted 4 x G cams in my 2.5 V6 vectra.
Some say it will run lumpy but I found it ran very smooth, just needs the timing to be spot on!
You will def need the cam & crank locking kit to do this.
performance wise I didn't really notice much of an increase...you would get more power increase by fitting a 3.0 or 3.2 instead.
Or you could go 'Balls out' and do the Saab turbo conversion to your V6! 

[zirk]

Hi, apologies to hijack... so does that mean in a 2.5 when people say they 'fitted G cams' they may have fitted 2x or 4x Gs? Presumably there's a performance increase by fitting 4, not just two?

No just upgrade the 2 x G Cams as per the 3.0 Set Up, if you have the A Cams, then fit them as well while your there and got the thing in bits. Also fit the Inlet dividers from a 3.0 . This Mod is claimed to give around +20 Bhp and is one of the cheapest and most effective ways to get more power from your 2.5.

Having said it that, Ive never owned a 2.5 or fitted the Cam Mod, so I cant personally say, my views are why get a 2.5 when theres a 3.0 Flavour available, sorry 2.5 owners but thats just me.

On the 4 x G Cams side, slightly different story, unlikely your going to get much Bhp increase, if any, but on a 3.0/3.2 it should slightly change the Torque behaver across the Rev Range, probably losing some Torque at the lower end and a slight increase at the top of the range, which could be beneficial if your thinking of doing other Mods.

I read in the past on the Veccy Forums about members trying out different Cams setups on there 2.5, 2.6 and 3.2 on their Vectras with mixed feelings and results, all I can do is comment on a 3.0 Ex Police Omega I had with 4 x G Cams fitted, it was bloody quick, I didn't actually know it had 4 x G's until the top end was stripped, it also had widened Throttle Bodies, some gas flowing and porting from the TB's down to the Heads, as well as an ECU re Chip.

Bringing it all back down to Earth, you could say that the best way to get some extra horses out of your car, is to get back the Bhp that youve lost or not lose them in the first place with regular Servicing and Maintenance.

The 4 G plus Mods 3.0 Plod I referred to earlier, was in fact a low mileage (60k ish on a W Reg) and hadn't long left the Force, the Service Printout showed it to be serviced to 120K, so more on timescales than millage, so some might argue it was quick due the good Maintenance history and not the Mods done, whilst I wouldn't argue with that one, I personally think the Mods did make a difference, whilst it wasn't the most responsive just poddling around it did scream into action when floored, and would see of any other 3.0 or 3.2 that Ive driven. Im guessing the Mods were done within the Force Ownership (Met DPG SO16 Mob) as the Log Book was still in there name with 1 owner, either way its a shame the cars not around anymore.   

 

[TheBoy]

4 Gs over 2 Gs and 2 As gives no benefit. Not worth the effort.

2 Gs in a 2.5 is beneficial, but nowhere near a 3.0l lump, not even close. I've owned both side by side, albeit briefly as the 2.5 couldn't hack it, and decided to give up.

[VXL V6]

2 Gs in a 2.5 is beneficial, but nowhere near a 3.0l lump, not even close. I've owned both side by side, albeit briefly as the 2.5 couldn't hack it, and decided to give up.

Agreed 2G's in a 2.6 is beneficial in that it gives you a little better performance higher up the rev range (useful for overtaking!) but as per above, I own a 2.6 with 2x G's and a 3.2 standard and the 3.2 is a far better performer anywhere in the rev range - from pulling away from stationary all the way to the red line.
 

[TheBoy]

2 Gs in a 2.5 is beneficial, but nowhere near a 3.0l lump, not even close. I've owned both side by side, albeit briefly as the 2.5 couldn't hack it, and decided to give up.

Agreed 2G's in a 2.6 is beneficial in that it gives you a little better performance higher up the rev range (useful for overtaking!) but as per above, I own a 2.6 with 2x G's and a 3.2 standard and the 3.2 is a far better performer anywhere in the rev range - from pulling away from stationary all the way to the red line.

And at cruising speeds, the 3.0/3.2 just effortlessly take off in a way that a superchipped 2.5 with 2 Gs just couldn't.

[VXL V6]

2 Gs in a 2.5 is beneficial, but nowhere near a 3.0l lump, not even close. I've owned both side by side, albeit briefly as the 2.5 couldn't hack it, and decided to give up.

Agreed 2G's in a 2.6 is beneficial in that it gives you a little better performance higher up the rev range (useful for overtaking!) but as per above, I own a 2.6 with 2x G's and a 3.2 standard and the 3.2 is a far better performer anywhere in the rev range - from pulling away from stationary all the way to the red line.

And at cruising speeds, the 3.0/3.2 just effortlessly take off in a way that a superchipped 2.5 with 2 Gs just couldn't.

Hmmmm.... Andy considers 3.2 Block with 2.6 Heads for his 2.6  ..... Mrs VXL considers Andy's life insurance policy and Pension fund followed by gentle but firm use of sledgehammer!