Guitar Jones
aka Angry Johnny
That is certainly very reasonable. If I didn't have a local guy that does great work and owes me some work done I'd certainly send you my W5's to install 2.08 valves and freshen them up.
how much was manifold porting?
Reading my statement, I said it will be a 6500rpm engine once in the car, not make HP to 6500rpm!
If you have an engine that makes 500HP at 5700rpm, and maintains within 10HP of that for 500rpm after peak, you need to run past peak in order to take advantage of that HP. .................................................................I had a customer dyno a 505 Mopar and made 768HP at 6400rpm and he said at the track it ran best shifting at 6200rpm....????
So I started asking him questions about what he changed and basicly he added an exhaust system with cutouts that unbolt and that's how he ran it.
Well they were 6" too short over the extensions we used on the dyno to get good HP so he dropped the system (which weigh'd roughly 60lbs.)and added the correct extensions and picked up 3mph and .2 with no other changes!!
it's called tuned exhaust....
Just like header pri tube length can effect power.
I tell people all the time, mark the pipe with shoe polish every 6 inches back from the collectors, on the last line that burns off, thats where the pipe ends or muffler hooks up.
Tuned exhaust.
what if your running and x-pipe?
It's probably too far out to matter.
It's more of a race thing
You'll find your mufflers end up right under you're seat, so no room for the ex pipe, unless after.he he
I wonder how many guys use an X/H pipe drag racing.
True on the primary tube length. It has been found that length is best working for the RPM range you want to run in. I have read and heard Dick Landy quip about the primary tube length being to long for what they were doing or a particular engine they had assembled. For the most part, it seemed they were to long for him.it's called tuned exhaust....
Just like header pri tube length can effect power.
I tell people all the time, mark the pipe with shoe polish every 6 inches back from the collectors, on the last line that burns off, thats where the pipe ends or muffler hooks up.
Tuned exhaust.
It's probably too far out to matter.
It's more of a race thing
You'll find your mufflers end up right under you're seat, so no room for the ex pipe, unless after.he he
I wonder how many guys use an X/H pipe drag racing.
I've done a lot of research on header primary tube size and length as well as collector size and length and what I found was most header builders agree that on a real race engine the primary tube diameter and length aren't nearly as important as collector length. Most race cars are pretty much set as to how long a primary tube you can fit in it and once that is set tuning can be done with collector length. This seemed to be proven true by several magazine articles I've read, one in particular that was an old (7 or 8 years ago) Car Craft article where they tested different tube diameters and lengths and as long as the tube wasn't too small the actual length and diameter had little effect on the power output but the collector length did. This of course did not take into account the shorty style headers which aren't considered a race header anyway.
Sounds like your on the ball. Now, about tieing knots in rope and pinning tarps down............
COME ON!!! Where's the tire frying video... LOL