Intake elbow

[mcjjordan]

So where can i get a nice silicone intake elbow
One end needs to be 80mm the other 75mm
And i have no take offs so just a straight throught 90 degree pipe

Cant seem to find one that has the different size ends
Or have i got some wierd size afm or throttle body???

[DanThe]

Ideally you will have the correct throttle/MAF for your engine/management,

Samco is probably the best available, I have them on my cars but bought from the US

https://www.merlinmotorsport.co.uk/p/sa ... Alry8P8HAQ

[HairyScreech]

Viper performance do a massive range and I have found their stuff to be pretty good without the price of the samco stuff.
https://www.viperperformance.co.uk/subcats.php?xctId=36

I have one of their big 90 deg reducers and the taper on it is quite nice and smooth.

80 - 75 is a tricky size though.

You will fine it is all 80-60 or 83/89-75.

For an 80-75 I would be tempted to stick 2.5mm rubber around the diameter of the 75mm part and use a non reducer hose.

What engine do you have? I can confirm the size of the 328 M52 and 325 M50 MAF is the same, will check what that is later tonight.

[mcjjordan]

Its m52 2.8 but it has the m50 manifold but its a special doctored one apparently by alpina527
It may have a big bore throttle body but ive nothing to compare it to

[HairyScreech]

Take a measure of the outside of the throttle, the bmw based big bore throttles are made using the stock outer housing.

[mcjjordan]

I did think it was 75mm
But when i measured afm was 80mm



Maybe someone could measure theirs and comfirm

[HairyScreech]

You got a stock AFM?

If so the AFM I have here is 80mm

[mcjjordan]

80mm afm and 75mm throttlebody