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At what compression

This is a discussion on At what compression within the Internal Engine forums, part of the LSx Technical Help Section category; Should you run a colder plug?...

  1. #1
    Slow'er'Ass Mr. Luos's Avatar
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    At what compression

    Should you run a colder plug?

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    Senior Member ninobrn99's Avatar
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    I dont think its soley based on compression, static or dynamic. I think octane, power, and your H/C combo should be taken into consideration. Personally, I think once you reach over 400hp your running the motor harder and valve events change dramatically with a cam swap. In my cam only ls6 (for the most part a ls6 ) Im running the tr55's, but I think I should go ahead and throw the tr6's in there. When I get my new motor, I will be running tr6's based on all these factors. Id like to give you numbers, but that could easily contridict what I just said. You could easily have a DCR of 8.4ish, SCR of 10.2 and be making over 400rwhp...with your setup, Id try the tr6's and see how they work out for ya.

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    Member 408WS6's Avatar
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    I got tr6s and like 'em

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    Slow'er'Ass Mr. Luos's Avatar
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    Did you ever run with TR55's??

    Thinking about just getting the TR6's and trying them out.
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    Senior Member ninobrn99's Avatar
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    Ive been running tr55's. Ive been meaning to swap over to the tr6's, but just didnt find time. With my new motor going in in august, Im using the tr6's.

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    Slow'er'Ass Mr. Luos's Avatar
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    What compression are you guys running?

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    Senior Member ninobrn99's Avatar
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    just over stock on the current motor because I went with ls6 heads, but with the new motor, Ill be running 11.1 scr and about 8.4 dcr. Few other guys I know running Tr6's are running anywhere from stock compression to 11.4. .

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    11:1 for me scr.
    Suppose it wouldn't hurt eh?

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    Senior Member ninobrn99's Avatar
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    nope.

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