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[orion]

Hi orion from essex i need to know if there is anything i can do to up grade my 2.5 v6 to get more power and speed perhaps turbos or bigger engine 3ltr or v8 if this is possible and turn gearbox into paddle shift is any of this possible and how much aggrovation and cost any help would be appreciated

[biggriffin]

anything is possable if you have lots of cash.

[guncharmer]

Methinks you ought to be buying a different car!

[biggriffin]

think its called a hsv

[Entwood]

I suppose an LS2 with an electronic gearbox and paddle shift is doable ... followed by a rear axle change, to handle the power, brake change so you can stop, suspension change so it handles correctly, wheel change to absorb the power ....

Whats left ....?? aaaah  its an Omega Shell 

and a very very large bill .... 

Oh .. and you probably won't get insurance for it so track use only ... 

[biggriffin]

yup that be an HSV thenhttp://www.hsv.com.au/hsv/landing/

[Kevin Wood]

3 litre cams are a useful upgrade for a 2.5. Beyond that a swap to a 3 litre engine is probably the most sensible upgrade and then things get expensive and/or quite involved as said.

Welcome to the forum.

Kevin

[TheBoy]

Yeah, 3l cams in the 2.5 heads. Still won't beat a 3.0 though, so engine swap probably more effective.

A V8 Omega was nearly released, so is possible, but it is going to cost.

A member here, Omegatoy, did stick in a Lotus Carlton 3.6 into his 2.0l Omega, and by all accounts it went rather well

[cem_devecioglu]

imho this will give some idea..

http://www.v6calibra.net/tuning/v6_calibra_tuning.htm

[Martin_1962]

imho this will give some idea..

http://www.v6calibra.net/tuning/v6_calibra_tuning.htm

A lot more restrictive than the Omega on inlet and exhaust

[cem_devecioglu]

imho this will give some idea..

http://www.v6calibra.net/tuning/v6_calibra_tuning.htm

A lot more restrictive than the Omega on inlet and exhaust

yep.. but mods are same..

[2woody]

I recently took 3.0 cams out of my 2.6 and gained 4 horsepower.

thinking standard fueling not up to changed requirements of 2.5 with bigger cams

[SteveT528]

as said, anything is possible if you have the cash. plus if you like the omega why not! fit a 3.0 v6 engine, and while its out port/polish the heads, fit custom manifolds or use the 3.2 manifolds at least , a decent exhaust, and if you have the money , fit an external oil cooler with a stat controlled mocal sandwich plate to sort cooling, then go throttle bodies.

there is loads you can do but it costs big money. 1.6 solid lifters, cams , steel rods/arp rod bolts.  c20let pistons fit if you want to go for loads of power eg: supercharger/turbo

the crankshaft and block start getting weak with big power though but this can be solved!

probably cheaper to fit an ls2 

[Kevin Wood]

I recently took 3.0 cams out of my 2.6 and gained 4 horsepower.

thinking standard fueling not up to changed requirements of 2.5 with bigger cams

Interesting...

I understood the fuel system is the same between 2.6 and 3.2  - same fuel pressure and injector flow rate so it should be up to delivering the same fuel.

2.5 and 3.0 apparently have the same map in the ECU, not sure if that holds for 2.6/3.2 though. :-/

I don't suppose you have before & after dyno plots? Might give some clues as to what was going on?

Kevin

[Kevin Wood]

fit an external oil cooler with a stat controlled mocal sandwich plate to sort cooling

I wouldn't bother with this, personally, unless planning to fit coolant unions to the cooler cover plate for extra coolant flow to the rear cylinders. (apparently advisable above 250 BHP)

I doubt the oil cooler is going to dump a huge amount of heat into the coolant in the overall scheme of things, fitting of an external oil cooler is going to be difficult without disturbing the air flow into the main rad. anyway, so cheaper and easier just to ensure adequate radiator capacity. IMHO, of course.

Kevin