Exhaust for z4 3.0si (VLN)
- Ersteller Demonf
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Demonf
Testfahrer
- Registriert
- 26 Oktober 2009
AW: Exhaust for z4 3.0si (VLN)
Is there a real difference in hp with modifying of exhaust system without changing stock exhaust manifold?
Do you use stock differential?
I've notice that z4 has the same front lower control arms as BMW e46 (Pt.N. 31 12 6 777 851). Is it possible to use control arms from e46 with sport package (Pt.N. 31 12 2 282 121) for z4? Will I feel a difference?
Thanks a lot!
Do you talking about this? (SS Front exhaust with metallic kat. cod: 981302)
Is there a real difference in hp with modifying of exhaust system without changing stock exhaust manifold?
Do you use stock differential?
I've notice that z4 has the same front lower control arms as BMW e46 (Pt.N. 31 12 6 777 851). Is it possible to use control arms from e46 with sport package (Pt.N. 31 12 2 282 121) for z4? Will I feel a difference?
Thanks a lot!
- Registriert
- 2 August 2004
- Wagen
- BMW Z8
AW: Exhaust for z4 3.0si (VLN)
Modification of the exhaust, especialy replacing the cats, will increase torque in midrange revs. We are not allowed to increase the top power, so that stayed the same in our case.
I don't have a part number here, sorry.Do you talking about this? (SS Front exhaust with metallic kat. cod: 981302)
Is there a real difference in hp with modifying of exhaust system without changing stock exhaust manifold?
Modification of the exhaust, especialy replacing the cats, will increase torque in midrange revs. We are not allowed to increase the top power, so that stayed the same in our case.
yes, mandatory by the rules.
I know that the Z4 uses a lot of suspension parts from the E46. In our case, we have a racing suspension and a race setup, so that is very different from the package that you describe. I have no experience with that one.
OP
Demonf
Testfahrer
- Registriert
- 26 Oktober 2009
AW: Exhaust for z4 3.0si (VLN)
Did you feel noticable advantage in aerodinamic with OEM rear rear diffuser? With front aero-bumper? With rear spoiler? Or is it just cosmetic Modifications?
P.S.: If I asking too much questions that previously answered or if you have special modifications thread in here please give me a link. I don't speak german and it's very hard for me to search in your forum
Thanx!
Did you feel noticable advantage in aerodinamic with OEM rear rear diffuser? With front aero-bumper? With rear spoiler? Or is it just cosmetic Modifications?
P.S.: If I asking too much questions that previously answered or if you have special modifications thread in here please give me a link. I don't speak german and it's very hard for me to search in your forum
Thanx!
- Registriert
- 2 August 2004
- Wagen
- BMW Z8
AW: Exhaust for z4 3.0si (VLN)
Don't worry, no problem to answer questions in English here.
The diffusor and the aero bumper do not make a noticeable difference, however, the rear spoiler does in fast
ers at high speed (>150 km/h). There it helps a bit to calm down the car just enough to make you feel better.
Don't worry, no problem to answer questions in English here.
The diffusor and the aero bumper do not make a noticeable difference, however, the rear spoiler does in fast
ers at high speed (>150 km/h). There it helps a bit to calm down the car just enough to make you feel better.
OP
Demonf
Testfahrer
- Registriert
- 26 Oktober 2009
AW: Exhaust for z4 3.0si (VLN)
We have Electric Power Steering instead of hydraulic one in our cars. Do you have problems with EPS when racing?
When driving on the racetrack and spinning the steering wheel fast in opposite ways I felt some loss of EPS efficiency.
We have Electric Power Steering instead of hydraulic one in our cars. Do you have problems with EPS when racing?
When driving on the racetrack and spinning the steering wheel fast in opposite ways I felt some loss of EPS efficiency.
- Registriert
- 2 August 2004
- Wagen
- BMW Z8
- Registriert
- 2 August 2004
- Wagen
- BMW Z8
AW: Exhaust for z4 3.0si (VLN)
it is mandatory to use stock sway bars in class V5. Otherwise we would certainly exchange them.
it is mandatory to use stock sway bars in class V5. Otherwise we would certainly exchange them.