I agree with the shape of the trumpets, something I discovered many moons ago on my silly looking dyno, long before anybody else was willing to believe the shape of the large radius trumpets where wrong. By that time, more and more company's just started to produce these shape of trumpets. Despite I did informed already. And they still advertise the part as a high performance part, at least better as a standard radius trumpet. Mayby it does work on very high rev'ing engines like F1 and motorcycles, but for sure not on Pinto's and all the other engines I've ever been working on.
About Pinto's and inlet track length. Any real Pinto I had on my dyno made indeed better power and torque with trumpets we could never fit into the Escort chassis. There is still a very long inlet manifold available (and is also there for a very long time). Wondering these guys where miles ahead when they started to produce it.
I've also back to back tested the Pinto with Weber "bent" shaped manifold compared to an absolute 1000 straight inlet manifold with 4x ITB but sadly, we did not found any real increase. Despite I was hoping for 5 Bhp. At that time we did not found ANY real advance fuel injection over Weber carbs also. The lines where running over each other everywhere. This does not automatic means, it can not be different in other engine setups. Sadly, here did not
Bookmarks