Blowing exhaust

[Andyman]

Does a blowing exhaust lose you much, if any, torque or BHP ??

My zorst is a bit of a mix and match and on the odd joint it does blow slightly.

I can live with this as its not mega bad but it is their.

Ive a 1/4 mile day coming up so would like to know if its work sealing it completly tight


Cheers

 

[Lagerlout]

Exhausts are quite an exact science. You need a certain amount of back pressure for torque as well as being free flowing to get the gases out quickly. If your exhaust is blowing, fix it. Although if it's a ramshackle job in the first place it could even be improving it. lol.

(says the man who's Prospeed is falling to f**king bits lol)

 

[dRUM]

Yeah it depends on how good it is in the first instance, it could well be improving the speed of the escaping gasses! However, I have had various exhausts over the years that have been blowing and on numerous occasions noticed a marked difference on the performance once fixed. IMO I wouldn't attempt a 1/4 mile with a blowing pipe

 

[Andyman]

Yeah it depends on how good it is in the first instance, it could well be improving the speed of the escaping gasses! However, I have had various exhausts over the years that have been blowing and on numerous occasions noticed a marked difference on the performance once fixed. IMO I wouldn't attempt a 1/4 mile with a blowing pipe

Is that with the Scooby you have in the photo tho m8??

Turbo cars rely on back pressure do they not?

Its blowing in 2 places where condensation drops out when its started from cold and if you put your hand over the area i can feel the gasses escaping.
Its not having a effect to the point where the zorst is noisy, but it is blowing

 

[Steve2004]

Turbo cars rely on back pressure do they not?

Turbos don't really rely on back pressure, not as much as n/a anyway.

When the exhaust on mine decided to fall off I noticed a large decrease in torque, especially low down. Really noticeable, felt gutless.

 

[dRUM]

Yeah it depends on how good it is in the first instance, it could well be improving the speed of the escaping gasses! However, I have had various exhausts over the years that have been blowing and on numerous occasions noticed a marked difference on the performance once fixed. IMO I wouldn't attempt a 1/4 mile with a blowing pipe

Is that with the Scooby you have in the photo tho m8??

Turbo cars rely on back pressure do they not?

Its blowing in 2 places where condensation drops out when its started from cold and if you put your hand over the area i can feel the gasses escaping.
Its not having a effect to the point where the zorst is noisy, but it is blowing

No not the scooby, But my 172 and R5GTT