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Old 05-27-2015, 10:23 AM
DavidBoren DavidBoren is offline
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I do have a question about optimizing induction to compliment engine design.

Do you play to the design's strengths, or use the induction system to make up for weakness

With a stroker motor, you should have all the low end grunt you need as an inherent feature of the design, so do you put a single plane long runner intake on it to help improve the top end, or a dual plane short runner intake to further compliment the low end torque?

Same with adding boost. Do you put a turbo on a high revving short stroke engine to use those extra rpms? Or do you put a positive displacement blower on it to make up for the short throw and add some bottom end?

Or, in the case of my proposed undersquare 359" engine, would a dual plane rpm air gap intake be best to really compliment that 4" crank, and get as much low end as I can... Or do I throw a single plane victor jr intake on it to try get a little more up top? Same question about boost. Trust that the long stroke will provide all the low end I need, and put a turbo to give me some top end? Or just throw a blower on it and have all the low end torque ever?

I suppose it will depend greatly on my intentions. However, I find it very hard to believe that I will require anything extraordinary in terms of the redline for this motor. The supercharged LSA has a 6200rpm redline, the LS7 has a 7k redline, so I will split the difference and establish a theoretical 6600rpm redline for the sake of this discussion. My calculations from the other page put a projected top speed of 166mph @ 6500rpms, which I am okay with.

Any thoughts on induction versus architecture in general? Or in relation to my proposed undersquare six liter?

Last edited by DavidBoren; 05-27-2015 at 10:29 AM.
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