[essex_lad]

ok iv located and bought the correct manifold now thank god so the conversion should be done soon

[bmw888]

Do you need 330i throttle body for this conversion?

[mike-y]

Originally Posted by bmw888

Do you need 330i throttle body for this conversion?

no, they are the same

[bmw888]

Originally Posted by mike-y

no, they are the same

Thank you

[bmw888]

Is it possible to use the 330i Vent Hose if it come with the IM?

[essex_lad]

yes

[essex_lad]

ok this is going to be put on hold for a while as iv been done over by an Asian breakers in Birmingham for £250. Had my money, no manifold and no contact. I will get my money back but until then this is on hold sadly.

[mike-y]

Originally Posted by bmw888

Is it possible to use the 330i Vent Hose if it come with the IM?

Only if you have a 325i. The 328i changed the crank case ventilation system, and integrated the oil separater into the valve cover, so the vent hoses are different.

But I guess you might be able use the 330i hoses and oil separator, if the connection to the valvecover is in the same spot.

[Kent_E92]

Originally Posted by essex_lad

fitting the manifold tomorrow and getting the car remapped.

Hey mate I'm thinking of doing this to my 325 was it a lot of work? and what parts did you actually need?

[essex_lad]

all you need is a 330i complete inlet manifold then a company to reprogram the car to use the 330i inlet.

[Kent_E92]

What does the complete 330i inlet manifold comprise of? I'm not really tech savvy when it comes to car mechanics sorry

[BudVlad]

When I was deciding between 325i and 330i I was comparing all the differences and price of the different parts. Beside the intake manifold and software in the ECU there are other differences: transmission, differential, brakes, muffler. Since I was going to get big brakes and different exhaust in any case I figured that converting 325i makes more sense. I bought intake manifold and 2 DISAs new. The DISA valves are working without reprogramming ECU. However, there was no hp gain but gain in torque and much better torque curve. Loading 330i software was costly mistake. Engine run normally but with reduced horsepower. Software and tuning by DS Motorsport solved the problem and increased dramatically horsepower. I installed BMW Performance brakes, Performance intake with Pipercross filter, Supersprint exhaust and 3.46 diff. I was able to use SPEC kevlar performance clutch since Euro 325i has the same transmission as US 328i.

[essex_lad]

In the u.k the only difference between The 325I And 330I is the manifold. Brakes are the same and so is the auto tranny. Not sure On the exhaust but that would make the smallest difference if any. Yes you also require to have a remap to get any gain out of it.

[essex_lad]

The complete manifold consists of the manifold itself and the 2 electronic valves.

[Kent_E92]

Originally Posted by essex_lad

The complete manifold consists of the manifold itself and the 2 electronic valves.

Thanks mate your a star

[essex_lad]

No worries all I can say though is good luck trying to get hold of one.

[CYL]

May I ask if your car is N52B25?
What are the benefit to change the intake manifold? Better torque and increase acceleration?

[essex_lad]

no its n53 and on mine the manifold upgrade gives my 325i 330i power.

[CYL]

Originally Posted by essex_lad

no its n53 and on mine the manifold upgrade gives my 325i 330i power.

So, this mod is not suitable to N52B25 engine?
Though it is still inline 6 engine, I assume the displacement is different and couldn't do such mod?
I am noob in car mechanic...

[essex_lad]

The n53 325 is the exact same 3.0l engine that's in the 330 the only difference is the 330 comes with a 3 stage manifold which gives it the extra power.

[BudVlad]

Originally Posted by essex_lad

The n53 325 is the exact same 3.0l engine that's in the 330 the only difference is the 330 comes with a 3 stage manifold which gives it the extra power.

3 stage manifold doesn’t give you extra power. I had it on dyno before the ECU remapping. Manifold itself improved torque curve but no power gain. You have to reprogram the ECU to increase power. The power increase depends on who does the tuning. You can get more hp than untuned 330i.

[essex_lad]

Yes but you still need the 3 stage 330 manifold On the 325 to do the programing and remap to achieve getting extra power.

Obviously there's more to just sticking it on.

So yes it does give you more power because you won't get it without it.

All major engine mods require remap to take advantage of them.
Its like saying if I put a turbo on the car it doesn't give me extra power it's the remap and programing lol.