Boost pattern with 3071

[th.b.w.]

Hy,

it is a single pipe 70mm after the cats.
No cats, they look only like one....

Lambda is about 0,80

BN-Pipes say: single 70mm is good for 450HP max. ....

It is an 3b/coupe so i don't know if it is impossible to get 2x63 or 2x70mm over the reardiff.....
I think 1x76mm must go.


Thomas

[Bram]

Hy,

it is a single pipe 70mm after the cats.
No cats, they look only like one....

Lambda is about 0,80

BN-Pipes say: single 70mm is good for 450HP max. ....

It is an 3b/coupe so i don't know if it is impossible to get 2x63 or 2x70mm over the reardiff.....
I think 1x76mm must go.


Thomas

What is the EGT reading @ 0.80 lambda and say 6500 RPM?

[Jamo]

Hy,

it is a single pipe 70mm after the cats.
No cats, they look only like one....

Lambda is about 0,80

BN-Pipes say: single 70mm is good for 450HP max. ....

It is an 3b/coupe so i don't know if it is impossible to get 2x63 or 2x70mm over the reardiff.....
I think 1x76mm must go.


Thomas

Ah it's a Coupe, I wouldn't have had it done like that it should be 76 mm up to rear diff then you can step down to 70mm over the diff, gasses are cold enough by that point for it not to have a significant effect on flow.

[th.b.w.]

Egt shows about 800 deg. So it should be o.k. Thomas

[A80Avant]

where is the sensor located though? and what gear?

[th.b.w.]

Hy, sensor is 5cm after the turbo....

4. gear shows ~780° C
5. gear ~ 800°C
6. gear ~ 830°C

...shows in the VEMS gauge.
In my seperate gauge it shows ~ 20°c deeper and with this i setup the motronic with Erdal to max 830°C at Lambda 0,82-0,83...