Tubular exhaust manifold, pairings of primaries.
Posted: Sat Jan 28, 2012 9:05 pm
I am fabricating my own exhaust manifolds, I am intending to make a system with 1 5/8 primaries, going 4 into 2 at two collectors, at the merge into 2 pipes the pipe will change into 2 inch pipe, then go past the bellhousing and then into a 2 into 1 merge, this merge will also go up to a 2 1/4 inch pipe for the rest of the system.
After the last set of merges the 2 1/4 pipes will meet at a X pipe somewhere under the transmission and then go back out to a pair of pipes to the back of the car.
The engine is only a 3.5 but i intend to fit a larger capacity Rover V8 in the future so am keen to build the system I need for the bigger engine rather than re-do all this again.
Obviously there will be two manifolds, a left and a right, the firing order is 1-8-4-3-6-5-7-2, is there a tried and tested pattern for pairing the merges ?
After the last set of merges the 2 1/4 pipes will meet at a X pipe somewhere under the transmission and then go back out to a pair of pipes to the back of the car.
The engine is only a 3.5 but i intend to fit a larger capacity Rover V8 in the future so am keen to build the system I need for the bigger engine rather than re-do all this again.
Obviously there will be two manifolds, a left and a right, the firing order is 1-8-4-3-6-5-7-2, is there a tried and tested pattern for pairing the merges ?