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Now I offer a piece of hope for increase HP that I have not mentioned before and I haven't seen mentioned in any of the postings since I joined last June. I haven't tried it myself and I am waiting for some more information. When doing the dyno testing and visiting with Chris I mentioned that I had a young friend, Grad Student at Texas A&M that we sponsored this summer, that has put himself through college by building race cars and doing high performance mods for the rich University students. (Gee I don't mean to insult anyone.) He grew up next to the Indy Car Race Way in Colorado Springs and has been in the garages since he was nine. He was a registered Porche mechanic at 18. Down in Texas he created a high performance shop and has a crew working for him. All this to establish the credibility of the tuning trick below.
OK all the things we do add maybe 8 to 10 HP at the wheel. That is OK. I will do test with the Bosch plugs but I don't believe their claim. I work with the process of electrical breakdown in high pressure gases and if you have four points to break down then on any given firing only one will break down with significant energy and the breakdown will move around the four points. This is Ok for increasing plug life time. If there is an increase in HP it is because the spark maybe more exposed.
Now let me know if you all know this trick.
First of all use the normal Champion Plugs. Second mark the plugs on the outside so you know which way the open gap points. You can get shim sets so that when you put the plugs in you can control the the direction that this gap faces. If the gap is set to face the major swirl pattern in the cylinder you will be more efficient in burning the fuel. My friend, and Chris agrees, that this can gain you ten to twenty horse power. Wow add that to the 8 that we already gained and we might see a total gain of 18 to 28 HP at the wheel. Corresponding to 271 to 281 at the flywheel. Now the reason I haven't mentioned this before is that my friend is trying to find out for our 3.5L engine what is the direction the gap should face. Now this is something that can be done as tuning runs on a dyno. One would begin by shiming all plugs so that the gap is pointing toward the intake manifold. Then do a dyno pull. Now add the more shims to turn all the plugs in same direction, going around the longest distance towards the exhaust port. Get the idea. Using a halving process for choosing the direction you will probably hit the sweet spot after five tries. So you got to record your position data carefully and watch the peak power on the dyno run. Now the "The Dyno's Edge" has a introductory offer of $50 for one run, $65 for two runs, and $75 for three runs and allows 15 mins of time to work on the car between runs. After the first hour the charge is $80/hour. And you can get about three runs in an hour. Hence to try and find the sweet spot may cost as much as $170 worth of dyno time. Well this is a lot but not as expensive as what we have been doing to gain that first 8 HP. I was planning on doing this on my own after I had made and tested the other mods first.
Well what do you all think??
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