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Author Topic: 3.0L cams in a 2.5?  (Read 1624 times)

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Andy the Scumballer

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3.0L cams in a 2.5?
« on: 11 October 2008, 14:19:54 »

Afternoon!

Does anyone know if there is a decent write up about this upgrade anywhere including info on software problems?

thanks
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ngrainqey

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Re: 3.0L cams in a 2.5?
« Reply #1 on: 11 October 2008, 14:24:37 »

apparently you only need the inlet cams (same as vectra gsi) wwhich produces 192 but it'll be slightly less on the omega (bout 180 bhp)
just have it remapped after, becareful of the timing though when swapping as it'll run rough at low revs
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HerefordElite

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JueV6

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Re: 3.0L cams in a 2.5?
« Reply #3 on: 11 October 2008, 15:54:32 »

The guy who had the 3.0 Elite lump from me for his Vectra has put 4 "G" cams :question :question
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HerefordElite

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Re: 3.0L cams in a 2.5?
« Reply #4 on: 11 October 2008, 17:43:57 »

Quote
The guy who had the 3.0 Elite lump from me for his Vectra has put 4 "G" cams :question :question


well the exhaust valves won't work to well with 4 inlet cams??? ::)
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amba

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Re: 3.0L cams in a 2.5?
« Reply #5 on: 11 October 2008, 18:56:11 »

Did the cam upgrade on mine about 3 months ago with a full set of 4 cams from a 3.0 thanks to Jamescdxv6.Difference is quite noticeable and car has alot more get up and go and will cruise at ...mph with out much effort.
Do agree with the bit about rough idling,as mine doesn,t seem to tick over smoothly until up to temperature(but may be another minor issue).
Would say a worth while upgrade but suggest you do it at the same time as a belt/tensioner replacement as all needs stripping out and you are reducing your work in the long run.When I did mine I also replaced all the cam seals.
Good luck with it
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markey mark

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Re: 3.0L cams in a 2.5?
« Reply #6 on: 11 October 2008, 19:22:34 »

from the 3.0 cams (inlets) you will gain 18/20 bhp ! standard the 2.5 pushes out 169 bhp iirc so a worthwhile upgrade ! a few other small mods like the 3.0 lower manifold the black part. Chip and exhaust you will easy get 210 bhp  :y :y

i will be fitting 4 g cams in my mv6 soon so will see if any advantage !!  :y
« Last Edit: 11 October 2008, 19:28:43 by markey_mark »
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ngrainqey

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Re: 3.0L cams in a 2.5?
« Reply #7 on: 11 October 2008, 19:27:26 »

Quote
from the 3.0 cams (inlets) you will gain 18/20 bhp ! standard the 2.5 pushes out 169 bhp iirc so a worthwhile upgrade ! a few other small mods like the 3.0 lower manifold the black part chip and exhaust you will easy get 210 bhp  :y :y

i will be fitting 4 g cams in my mv6 soon so will see if any advantage !!  :y

which is the "lower manifold" and the "black part chip"?
might be after some of that stuff for mine ;)
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markey mark

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Re: 3.0L cams in a 2.5?
« Reply #8 on: 11 October 2008, 19:29:39 »

Quote
Quote
from the 3.0 cams (inlets) you will gain 18/20 bhp ! standard the 2.5 pushes out 169 bhp iirc so a worthwhile upgrade ! a few other small mods like the 3.0 lower manifold the black part chip and exhaust you will easy get 210 bhp  :y :y

i will be fitting 4 g cams in my mv6 soon so will see if any advantage !!  :y

which is the "lower manifold" and the "black part chip"?
might be after some of that stuff for mine ;)

the black inlet divider uder the trumpets and injectors ! my grammer is crap sorry !  :-[
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ngrainqey

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Re: 3.0L cams in a 2.5?
« Reply #9 on: 11 October 2008, 19:32:14 »

Quote
Quote
Quote
from the 3.0 cams (inlets) you will gain 18/20 bhp ! standard the 2.5 pushes out 169 bhp iirc so a worthwhile upgrade ! a few other small mods like the 3.0 lower manifold the black part chip and exhaust you will easy get 210 bhp  :y :y

i will be fitting 4 g cams in my mv6 soon so will see if any advantage !!  :y

which is the "lower manifold" and the "black part chip"?
might be after some of that stuff for mine ;)

the black inlet divider uder the trumpets and injectors ! my grammer is crap sorry !  :-[

be r8 mark, i think its a sort of lower inlet/trumpet spacer kind of thing
got the general jist of what you meant, still dunno what that black part chip is though haha!
when i come to yours for odds n ends im there like.... "that thingy...yano"
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ngrainqey

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Re: 3.0L cams in a 2.5?
« Reply #10 on: 11 October 2008, 19:34:51 »

apparently its an inlet manifold gasket ;)
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markey mark

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Re: 3.0L cams in a 2.5?
« Reply #11 on: 11 October 2008, 19:35:04 »

aye bud ok !!  :y
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Andy the Scumballer

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Re: 3.0L cams in a 2.5?
« Reply #12 on: 11 October 2008, 19:56:41 »

Can anyone comment on garage hours for cam swap and timing belt change??
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Re: 3.0L cams in a 2.5?
« Reply #13 on: 11 October 2008, 20:03:15 »

Took me about 2 hours to strip engine down and remove the cams couple of days ago...cambelt change is about 2 hours but includes at least some if not all of the work involved in stripping down the engine for the cams...so whats left is just reverse which would be a bit quicker I would imagine and some timing up etc...3-4 hours?
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Andy the Scumballer

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Re: 3.0L cams in a 2.5?
« Reply #14 on: 11 October 2008, 20:16:38 »

Nice one - a picture is forming, please feel free to add anything that is relevant! Pics etc?
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