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spuggy spuggy is offline
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Join Date: Jul 2003
Location: Glorious Pac NW
Posts: 2,793
I picked up 85 FWHP and 60-odd ft/lbs of torque with a K27/HF, GHL's and a Kokeln with a Brian Leaske adjustable WUR, boosting to 12.5 PSI on a VDO gauge (although as far as I know it's a factory spring in both wastegates).

It may depend on the model of K27 what difference it makes - and you might not get quite as much with stock cams - it makes peak power @ 6100 with that configuration and SC cams. I also went from an open muffer on the first run to a factory RoW muffler (still with a separate wastegate dump pipe), which apparently costs me 10-15 HP.
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'77 S with '78 930 power and a few other things.
Old 03-17-2008, 09:01 PM
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