I'm curious, what's the point of running long tube headers? Do they help to flatten/broaden the power curve?
I'm curious, what's the point of running long tube headers? Do they help to flatten/broaden the power curve?
They were on my car when I bought it.Originally Posted by fscott
Jerry
I've heard long tubes are needed to "make the power numbers". I have no idea since A) That information came from Ford 5.0 owners and B) I bought my car with them and have no experience with anything else.
Is anyone running a 2V and "making the numbers" with shorties???? (If so, what's changed from stock to get there?)
I think Frederic has the 2V engine with shorties that makes the numbers and won a national championship.
- Josh
CMC #50
To be clear, the car won the national championship. I didn't.
The 2v 4.6 made 260hp, and ran manifolds. Aluminum block Romeo with PI heads and intake manifold. It was down to 250 when I got it, due to a bad roller rocker that flattened a cam lobe.
But what is your torque? It seems the HP number is easy to make in a 4.6 but not TQ. When I got my 2V I was the only 4.6. Now there are several others and people are either 290TQ....or 310TQ and we can't figure out what is different (all are running longtubes).To be clear, the car won the national championship. I didn't.
The 2v 4.6 made 260hp, and ran manifolds. Aluminum block Romeo with PI heads and intake manifold. It was down to 250 when I got it, due to a bad roller rocker that flattened a cam lobe.
Torque average of the three runs was 289
MustangDynoRuns.jpg
Last edited by fscott; 04-06-2021 at 03:05 PM.
Thanks, I have the same issue with a iron block. I make 260 HP and my TQ is also around 290. I'm trying to find a way to increase it closer to 310.
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