But the ports were also bigger... No?
Exhaust manifold from ebay
Collapse
X
-
I have original wagner evo, rs2 and original manifolds. Had them all on the table and when you look at runners then yes - ports are bigger and if you want to go grazy there is LOADS of material to port and grind to make it flow even better, but i didnt bother.1990 2.2 20VT Audi Coupe Quattro
*Hx35/k26, MaxxECU, Wagner EM/IC *RS2 Recaro *4pot-Brembo *3" turboback *Treser *Koni/H&R
1990 Audi 200 20v Avant 2.2 20VT *7 Seater *Full electric gizmosComment
-
Because cylinders 1 and 5 effectively doesn't blow exhaust gases onto the turbo. It is quite obvious if you look at the pictures in post #18. Ports ar le the same size but you get more flow, better flow at the turbo.'93 Audi 100 Avant - R.I.P
'92 Audi UrS4 Avant - SOLD
'93 Audi UrS4 Avant
'15 Audi A7 quattro 3.0 TDIComment
-
Comment
-
Right, I have an issue with the install.
It looks like the turbo and wastegate mount locations are different to the 3b manifold.
My downpipe does not mate up now.


The down pipe clashes with the subframe


Is it possible to get spacers fabricated to take up the gap?
Sent from my Pixel using TapatalkComment
-
Weird, I thought you had the two manifolds sitting next to each other and they measured up the same,
Did you change the turbo?
Is the motor sitting higher than before?Comment
-
To be honest, I measured the ports and bolt PCDs etc but not the location of the turbo/wastegate mounts in relation to the head. From looking at it on the car it seems they are 10-15mm towards the front of the car than the 3B manifold. Engine is on poly mounts but these were installed before I changed the manifold. Turbo hasnt been changed. I will split the exhaust as soon as I have time to see if the downpipe section will move any more but as its fowling on the subframe I doubt this will make any difference.Comment
-
I was expecting maybe a small amount of 'adjusting' would be needed but but not this much.
Admittedly the downpipe was always close to the subframe when the 3b manifold was installed, probably because it was fitted to a different car before mine.
I will try and take some more measurements of manifold whilst its installed as I dont really want to take it off again unless I really have to.Comment


Comment