You don't need really anything bigger than 63mm for the piping. I did some testing on pressure loss at 500bhp on my car and the loss in the pipes is pretty negligeable compared to the loss in the intercooler. The 1035 I used has 75mm connections so I just used 63-75mm bends to connect to the intercooler. The VLOG I linked to earlier did several tests on the TR8L and TR8C and the TR8L didn't come out that well in terms of cooling and pressure drop .
https://mygolfmk7.com/2021/03/treadstone-tr8l-street-data/ .
You need both low pressure drop and good cooling especially when running higher boost settings as this is when the highest heating of the intake air occurs.
I would be looking at the TR8C if you can fit the 75mm connections and are OK with centre feeds.
https://mygolfmk7.com/2021/03/treadstone-tr8l-street-data/ .
You need both low pressure drop and good cooling especially when running higher boost settings as this is when the highest heating of the intake air occurs.
I would be looking at the TR8C if you can fit the 75mm connections and are OK with centre feeds.