I'm hunting down a cheap SU manifold on Ebay to get the measurements. Do you have the formula to calculate the length and diameter the runners need to be? I love to play with the numbers.
I'm definitly having head work done by either Rousch motorsports or Rebello Racing. They do phenominal work ...
Search found 2 matches
- Tue Oct 30, 2007 9:26 pm
- Forum: Injectors, Fuel & Air Supply
- Topic: Multiport injection vs. TBI
- Replies: 2
- Views: 479
- Tue Oct 30, 2007 10:00 am
- Forum: Injectors, Fuel & Air Supply
- Topic: Multiport injection vs. TBI
- Replies: 2
- Views: 479
Multiport injection vs. TBI
I have a 77 Datsun 280Z that came factory with Multiport injection. From what I've read, the intake runners are too small to support over 200 hp so I'm wanting to switch over to the older SU manifold (bigger runners). I have two options. Option 1: mate the two manifolds together so I have MPI and I ...