Engine build continued...
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Printable View
Engine build continued...
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The car looks Great and a nice engine build...Just in case, and with the risk of repetition! ...."Intermediate and chain gears all in spec"...as Ed M and Gled49 have mentioned in the past.... I hope they are "previously used" and not recently supplied as New sprockets by Porsche from "SEBRO"...But, hopefully this is old news and most people know this by now...:o
Thanks for the kind words and reminder Lars! Yep, all in spec and good used, not new... :)
A few videos of first engine start, rough tune, then on the dyno with chart...
TEST STAND
https://youtu.be/dzdDWMyMbcw
https://youtu.be/ua17xcpk6GQ
DYNO RUN
https://youtu.be/08fWAu79OIE
RESULTS with and without air filter
WITH AIR FILTER
PEAK Torque - 260.3 NM (192 ft lbs) @ 5400 RPM vs factory specs - 254.9 NM (188 ft lbs) @ 5100 RPM
PEAK HP - 168.3 KW (225.7 HP) @ 6550 RPM vs factory specs - 156.6 KW (210 HP) @ 6300 RPM
Attachment 616740
WITHOUT AIR FILTER
PEAK Torque - 261.4 NM (192.8 ft lbs) @ 5600 RPM vs factory specs - 254.9 NM (188 ft lbs) @ 5100 RPM
PEAK HP - 172 KW (230.7 HP) @ 6750 RPM vs factory specs - 156.6 KW (210 HP) @ 6300 RPM
Attachment 616741
Interesting to see the peak torque and HP are slightly higher without the air cleaner (0.8 ft lbs and 5 HP difference), but both are slightly higher lower in the rev range with the air filter on the overlay graph... Also both with and without the air cleaner both peaks are higher than factory specs...
Attachment 616739
FACTORY GRAPH FOR COMPARISON
Attachment 616742
Very good info. Your builder doesn’t seem to drag his feet and gets the job done. When do you expect to be behind the wheel again?
Excellent results, I am sure you will enjoy your build. Great road car.
Thanks David! I'm very happy with the results! And keeping as near to stock as possible and a road car was the goal - kind of a counterbalance to the 2.8 RSR build... I just couldn't resist upping the compression while in there... we have the high octane fuel over here, so why not... :)
MFI engines just sound so good....even idling. Nice!