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dfelz |
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#1
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beach bum ![]() ![]() Group: Members Posts: 419 Joined: 7-June 12 From: San Diego Member No.: 14,538 Region Association: Southern California ![]() ![]() |
Just got the exhaust valves in I ordered from aircooled.net, that are supposed to be for my year 914 1700. They have a dome in the face, which my stock ones do not. Just curious if anyone has experience using these on the T4? Anything I should be aware of, any change in performance or setup or tuning when rebuilding the engine/head with these?? Thanks,
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914werke |
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#2
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"I got blisters on me fingers" ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 11,231 Joined: 22-March 03 From: USofA Member No.: 453 Region Association: Pacific Northwest ![]() ![]() |
OE Sodium filled
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barefoot |
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#3
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Senior Member ![]() ![]() ![]() Group: Members Posts: 1,369 Joined: 19-March 13 From: Charleston SC Member No.: 15,673 Region Association: South East States ![]() ![]() |
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bdstone914 |
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#4
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bdstone914 ![]() ![]() ![]() ![]() Group: Members Posts: 4,888 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 ![]() |
@dfelz
The disc will have a small affect on the chamber volume. Measure the volume of the disc with a medicine syringe and add thstvto the CR calculation.What did you compute as the compression ratio? |
dfelz |
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#5
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beach bum ![]() ![]() Group: Members Posts: 419 Joined: 7-June 12 From: San Diego Member No.: 14,538 Region Association: Southern California ![]() ![]() |
@dfelz The disc will have a small affect on the chamber volume. Measure the volume of the disc with a medicine syringe and add thstvto the CR calculation.What did you compute as the compression ratio? Thanks Bruce! I have not calculated CR yet, but will take the volume measurement of these valves before I install them. I’m still in the engine tear down and parts acquisition stage of the engine rebuild, and I don’t recall what we calculated the CR to be from the last rebuild (7 years ago now). |
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