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[DOC23]

i have a 3l mv6 omega and i want to get more power out of her at lower revs.
iv been looking at the intake system and wondering if i can get rid of the 2big downward plastic ducts and put in 1 big main feed. i plan to keep the afm just after the air filter on this mood in case anyone is wondering
wud this be possible?
will the car run as well if i do this mod?

any help is much appreciated with any other tips on increasing the bhp and torque (without of course spending BIG bucks on it )

cheers
daniel

[MutantCav]

What year is it?

[DOC23]

97-99 not sure lol

[joshwyatt]

What is the registration?

[feeutfo]

youll loose multi ram and gain a step(flat spot) in power curve. ie loose power and economy, leave it be imho...

[bappy]

there is little/nothing you can do to the intake to improve power imho, thats something GM did a good job of on the x30xe.

best place to look is the exhaust, I think. there is no manifold, just a plenum instead. If you can get a proper 3 to 1 manifold made up for each side, even if only a simple one, you should get a huge improvement in power... I don't know of anyone who has actually bothered mind...

The other option is to try and make the car lighter... LOL

[DOC23]

What is the registration?

i dont have the reg to hand, as it is a drift car so i never kept the plates!

[DOC23]

youll loose multi ram and gain a step(flat spot) in power curve. ie loose power and economy, leave it be imho...

i hear what you are saying....is it possible to get rid of the butterfly valve on the upper part of the intake? i.e have it fully open all the time?

as its a drift car im not to worried abot fuel economy

[DOC23]

there is little/nothing you can do to the intake to improve power imho, thats something GM did a good job of on the x30xe.

best place to look is the exhaust, I think. there is no manifold, just a plenum instead. If you can get a proper 3 to 1 manifold made up for each side, even if only a simple one, you should get a huge improvement in power... I don't know of anyone who has actually bothered mind...

The other option is to try and make the car lighter... LOL

cheers for the info

anuda wee question, is it wise to leave in the cats? iv read somewhere by de-cating you lose power because of the lose of back pressure??

[Kevin Wood]

If it's power at low revs you're interested in, then the last thing you want to do is remove the multiram ducting. That's exactly what that is there for.

Not much you can do, really, I'm afraid. Most tuning work is only going to give you a little more at high revs, sometimes at the expense of flexibility at low revs, and there's not much to come there from a 3.0 anyway.

Might be worth chipping it, but not sure how much of a difference that'd make.

Kevin

[feeutfo]

youll loose multi ram and gain a step(flat spot) in power curve. ie loose power and economy, leave it be imho...

as its a drift car im not to worried abot fuel economy

Well why the didnt you say so? And you will be when you go half as quick for almost twice the fuel. Imho;
1, vxr8, failing that,
2, stick a bigger lump in it,
3, supercharger(search you tube)
4, Noz
5, stop mincing about with intake lad, you need cubes!

[Kevin Wood]

Well why the didnt you say so? And you will be when you go half as quick for almost twice the fuel. Imho;
1, vxr8, failing that,
2, stick a bigger lump in it,
3, supercharger(search you tube)
4, Noz
5, stop mincing about with intake lad, you need cubes!

Never a truer word said. Torque is proportional to litres at the end of the day.

Kevin

[NiallyV6CDX]

youll loose multi ram and gain a step(flat spot) in power curve. ie loose power and economy, leave it be imho...

as its a drift car im not to worried abot fuel economy

Well why the didnt you say so? And you will be when you go half as quick for almost twice the fuel. Imho;
1, vxr8, failing that,
2, stick a bigger lump in it,
3, supercharger(search you tube)
4, Noz
5, stop mincing about with intake lad, you need cubes!

Haha yeah stick a big chevvy V8 in these ....or supercharger...if you have a spare 2K to spend!

Seriously though, like Kev said leave the intake alone. The multi rams are configured to give the engine optimum torque and flexibility throughout the rev range so if you remove it or start blocking the flaps open/closed you will ruin the torque curve and lose driveability. :-/

As yours is a 3.0 it has the restrictive cast iron exhaust plenum/manifold. DOC is right, a custom made exhuast would be ideal, but a cheaper option would be to swap your ones for the improved pressed steel items that were fitted to the 2.6 and 3.2 engines, de cat it, and remove the mid section silencers too...then after all that, remap to take advantage of the improved flow. There is minor scope for improvement with the throttle bodies too

[DOC23]

youll loose multi ram and gain a step(flat spot) in power curve. ie loose power and economy, leave it be imho...

as its a drift car im not to worried abot fuel economy

Well why the didnt you say so? And you will be when you go half as quick for almost twice the fuel. Imho;
1, vxr8, failing that,
2, stick a bigger lump in it,
3, supercharger(search you tube)
4, Noz
5, stop mincing about with intake lad, you need cubes!

Haha yeah stick a big chevvy V8 in these ....or supercharger...if you have a spare 2K to spend!

Seriously though, like Kev said leave the intake alone. The multi rams are configured to give the engine optimum torque and flexibility throughout the rev range so if you remove it or start blocking the flaps open/closed you will ruin the torque curve and lose driveability. :-/

As yours is a 3.0 it has the restrictive cast iron exhaust plenum/manifold. DOC is right, a custom made exhuast would be ideal, but a cheaper option would be to swap your ones for the improved pressed steel items that were fitted to the 2.6 and 3.2 engines, de cat it, and remove the mid section silencers too...then after all that, remap to take advantage of the improved flow. There is minor scope for improvement with the throttle bodies too

cheers for all the info guys

now use have got me tinking of a v8 transplant!lol..i better start saving ...out of interest, wat v8 cud i fit in the omega??

so my only real scope for improvement is in the exhaust system, so i will look out for the manifolds off a 2.6 or 3.2.
also iv read somewhere is bad for the 3l v6 to decat it as it relies on back pressure to run right. is there any truth in this and shud i go ahead and decat, take the middle boxs and put on a straight pipe to 2 seprate back boxs?

[DOC23]

bump, can anyone answer my q's above?