running for 400+hp's
no sound or emission control
planning to install a straight line and only one straight silencer at the back.
i thought 75mm diameter pipe.what do you think about this app?
thnx
what should be the exhaust pipe size?
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markhalligan
- Neutral
- Posts: 10
- Joined: Sun Feb 09, 2003 7:27 pm
- Location: london
Re: what should be the exhaust pipe size?
Timucin,
I'm using a 3 inch (76mm) downpipe, and I think thats just about right, I also have a seperate straight through exhaust for the wastegate that exits just under the drivers door (right hand drive) although this is a bit loud when on full boost when the wastegate opens.
Mark.
I'm using a 3 inch (76mm) downpipe, and I think thats just about right, I also have a seperate straight through exhaust for the wastegate that exits just under the drivers door (right hand drive) although this is a bit loud when on full boost when the wastegate opens.
Mark.
1993 ABY Coupe
Turbonetics Garret/KKK hybrid BB turbo , MTM sport quattro exhaust manifold, Custom fabricated 3" downpipe, seperate wastegate exhaust pipe, Decat, RS2 inlet manifold, RS2 intercooler, RS2 injectors, 5bar-200lt/hr fuel pump, 5bar fuel regulator, Modified crankcase ventilation, 393.4 bhp @ 6798rpm, 356.2lbft (470.19NM) @ 4938rpm at 1.8 bar max boost pressure, mapped 'on the fly' at 28 deg C max ambient temp(hot day) by Mihnea.
18inch BBS RK II split rims,225/40 SO3's, 322mm front rotors with Brembo calipers, 280mm rear rotors with S8 calipers/carriers, Boost/EGT gauge. Whiteline rear anti-roll bar.
Turbonetics Garret/KKK hybrid BB turbo , MTM sport quattro exhaust manifold, Custom fabricated 3" downpipe, seperate wastegate exhaust pipe, Decat, RS2 inlet manifold, RS2 intercooler, RS2 injectors, 5bar-200lt/hr fuel pump, 5bar fuel regulator, Modified crankcase ventilation, 393.4 bhp @ 6798rpm, 356.2lbft (470.19NM) @ 4938rpm at 1.8 bar max boost pressure, mapped 'on the fly' at 28 deg C max ambient temp(hot day) by Mihnea.
18inch BBS RK II split rims,225/40 SO3's, 322mm front rotors with Brembo calipers, 280mm rear rotors with S8 calipers/carriers, Boost/EGT gauge. Whiteline rear anti-roll bar.
Re: what should be the exhaust pipe size?
this is excellent idea.lots of company do that.but there is a sensor after wastegate and exhaust connection.doesnt it cause any problems?
cause i was planning the same thing but they told me that there is a sensor there and i cant do that.....
cause i was planning the same thing but they told me that there is a sensor there and i cant do that.....
Quattro
Re: what should be the exhaust pipe size?
That sensor is the lambda == O2 sensor. Doesn't affect WOT behaviour.
Shouldn't cause problems otherwise either, part of exhausts passes through downpipe, there is no harm letting wastegate exit directly out -other than the emissions.
Shouldn't cause problems otherwise either, part of exhausts passes through downpipe, there is no harm letting wastegate exit directly out -other than the emissions.
Re: what should be the exhaust pipe size?
ok i will do that!
[img]images/graemlins/thumbs.gif[/img]
[img]images/graemlins/thumbs.gif[/img]
Quattro
-
markhalligan
- Neutral
- Posts: 10
- Joined: Sun Feb 09, 2003 7:27 pm
- Location: london
Re: what should be the exhaust pipe size?
Timucin,
I've attached a picture of the way mine has been fitted, but remember this gets very loud when the wastegate opens.
Mark.
I've attached a picture of the way mine has been fitted, but remember this gets very loud when the wastegate opens.
Mark.
1993 ABY Coupe
Turbonetics Garret/KKK hybrid BB turbo , MTM sport quattro exhaust manifold, Custom fabricated 3" downpipe, seperate wastegate exhaust pipe, Decat, RS2 inlet manifold, RS2 intercooler, RS2 injectors, 5bar-200lt/hr fuel pump, 5bar fuel regulator, Modified crankcase ventilation, 393.4 bhp @ 6798rpm, 356.2lbft (470.19NM) @ 4938rpm at 1.8 bar max boost pressure, mapped 'on the fly' at 28 deg C max ambient temp(hot day) by Mihnea.
18inch BBS RK II split rims,225/40 SO3's, 322mm front rotors with Brembo calipers, 280mm rear rotors with S8 calipers/carriers, Boost/EGT gauge. Whiteline rear anti-roll bar.
Turbonetics Garret/KKK hybrid BB turbo , MTM sport quattro exhaust manifold, Custom fabricated 3" downpipe, seperate wastegate exhaust pipe, Decat, RS2 inlet manifold, RS2 intercooler, RS2 injectors, 5bar-200lt/hr fuel pump, 5bar fuel regulator, Modified crankcase ventilation, 393.4 bhp @ 6798rpm, 356.2lbft (470.19NM) @ 4938rpm at 1.8 bar max boost pressure, mapped 'on the fly' at 28 deg C max ambient temp(hot day) by Mihnea.
18inch BBS RK II split rims,225/40 SO3's, 322mm front rotors with Brembo calipers, 280mm rear rotors with S8 calipers/carriers, Boost/EGT gauge. Whiteline rear anti-roll bar.
Re: what should be the exhaust pipe size?
Thnx for pic
[img]images/graemlins/smile.gif[/img]
[img]images/graemlins/smile.gif[/img]
Quattro
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