Anyone running true equal length tube headers?

[Fordismyboss]

I think BBk makes true equal length shorty headers that may fit on a VooDoo engine, but not aware of anyone making long tube equal length headers for our engines. Any one got any info?

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[Bulldogs22]

Due to packaging issues Ford did not add equal length headers for this reason, and also did not add 2 equal length intakes which is why we have a different firing order than a Ferarri or the new Z06 flat plane engines. I do not believe a true equal length setup would fit and it one was custom made would easily be 10k. American racing headers are the closest you will get to equal length.

 

[Angrey]

I'm wondering if you could even fit a true equal length set of headers with the all the dimensional constraints. Between the steering shaft, the motor mounts, the starter, K-member, etc, it would be probably impossible to find an arrangement that didn't conflict or rub with something.

Interestingly the voodoo firing order is 1-5-4-8-3-7-2-6. Meaning the firing order is waves that move from the back to front of each bank (alternating each bank).

So if we examined the (straight line distance from each exhaust port to the collector, we'd find that 1-5 are the furthest away, 2-6 and next furthest, 3-7 are second shortest and 4-8 are shortest.

So if every cylinder on a bank fired at the same time and followed a direct path to the collector, there would be some natural separation because the rearward cylinders are closer.

What gives the voodoo such a unique sound is that it does have a secondary structure to the exhaust, but it's much more subtle and refined compared to the abhorrent flathead firing order of the coyote (which sounds generally awful).

The best sounding coyote I've ever heard had GT350 ARH headers on it (which would be an interesting analysis as to what the lengths for the voodoo firing order do for the coyote flathead firing order to make it sound so much better).

 

[Rev Happy]

Here's a short clip of an R with equal length headers. This was Hameedi's old car so the headers were probably custom done by someone at Ford.

I'm a huge Ferrari fan boy, but personally I think the Voodoo sounds better in the low and mid range than most modern Ferraris. The F355 is still the greatest sounding V8 ever in my opinion. Going back to the Voodoo, it doesn't really have the wail up top like a 458, but it sounds like you can get some of that with equal length headers.

Maybe one day we'll see photos of the headers on this car. I think it sounds awesome.

 

[Fordismyboss]

Due to packaging issues Ford did not add equal length headers for this reason, and also did not add 2 equal length intakes which is why we have a different firing order than a Ferrari or the new Z06 flat plane engines. I do not believe a true equal length setup would fit and it one was custom made would easily be 10k. American racing headers are the closest you will get to equal length.

Help me understand how two seperate intakes would change the firing order?

 

[Fordismyboss]

Here's a short clip of an R with equal length headers. This was Hameedi's old car so the headers were probably custom done by someone at Ford.

I'm a huge Ferrari fan boy, but personally I think the Voodoo sounds better in the low and mid range than most modern Ferraris. The F355 is still the greatest sounding V8 ever in my opinion. Going back to the Voodoo, it doesn't really have the wail up top like a 458, but it sounds like you can get some of that with equal length headers.

Maybe one day we'll see photos of the headers on this car. I think it sounds awesome.

Thank you for posting this video. It does sound different, not as "raspy", but it couild be the video.

If Hameedi sold the car, do we know who owns it now?

 

[ChipG]

Interesting video on CPC vs FPC vs GT350 FPC, including a discussion of the GT350 sound and impact of unequal headers on it.

 

[GTthree50]

Help me understand how two seperate intakes would change the firing order?

The intake, whether single or dual has no bearing on the firing order whatsoever. It will however contribute to the sound. The firing order of the Voodoo is primarily what gives it its unique sound. If I characterized it I’d say the Voodoo has a somewhat hybrid sound between a cross plane and traditional flat plane V8. I remember reading in the C&D article on the Shelby that Ford engineers spec’d this firing order to give the car a different sound and power spread. How actually true this is is unknown but clearly the Voodoo sound is one of a kind.

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