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len911 len911 is offline
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Join Date: Feb 2002
Location: Central NJ
Posts: 568
Gents, engine was dynoed at 260HP (@6.6K) & 194 Ft/# using a Dynapack dyno. I was not happy with the timing as was set on the car at the time. It was so far advanced that it would ping under load as soon as I got on the power. I have since adjusted timing to 26 deg @ 6k and I'm very happy.

Running 1 5/8 headers. Unfortunately, I do not know the venturi or emulsion tube size.

The engine pulls very strong from about 5.5k onwards (to at least 7.5k) and it is probably due to cam selection. I'm sure that it is probably making more HP now that at the time that it was dynoed since the runs were halted at 6.6K.

I'm not complaining or not happy about the way it runs, but since it was set up with open Supertrapps, I'm just trying to optimize mixture to compensate for the addition of the disks.

I'm leaning towards going with 155s instead of the 160s. Easy enough and relatively inexpensive to do. I was just looking from some direction from the experts since I do not want to muck with it too much.

I figured that if the 155s don't work, I can always go back to the 160s and live with it...

I probably would like to eventually go with a 2-in 2-out exhaust. At that time, I most likely take the carbs apart to get all pertinent info since it will be a brand new ball game...

Thanks for all your replies... Lou

My exhaust system...


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'76 911 "Moneypenny" daily driver
'74 911 "JLo" IROC DE Car
'03 CRV, '02 Jeep Grand Cherokee
'03 Holiday Rambler Admiral SE, 30ft, 8.1l, 340HP, 455Ft#
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Old 04-16-2007, 02:08 PM
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