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I have read that there are seven clutch packs in the PowerFlites in the 300’s vs. six in the NY’s & Imp’s. Rich From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On Behalf Of Don Verity Hi Narve, I have to agree about the adjustment of the throttle linkage probably being off. The only differences between the regular New Yorker/Imperial trans and the 300 trans is a slightly higher line pressure (95-105 verses 85-95) and a different direct clutch spring according to the 56 manual I have. Both were to give increased load capacity, and were not related to up shift speed. 55 is likely the same or very close. I doubt either of these parts are easily found. The 56 book lists wide open throttle up shift at 55-65 mph. I would check the throttle linkage adjustments and line pressure first, and then check the valve body itself to see if something was not put together correctly in the rebuild. Don Verity From: Rich Barber Sent: Saturday, November 09, 2013 9:45 PM To: 'Narve Nordanger' ; '300 Group' Subject: RE: [Chrysler300] Wire wheels caps and Powerflite transmissions Narve: I’m no expert on the ’55 PowerFlite, but some combination of internal or external adjustments must control that shift point. Until you get those fine-tuned, I’d suggest you lower the dagger on the dash to L for Lunge. Member Don Verity advertises service on PowerFlites as #21 here: http://www.chrysler300club.com/rcmstuff/partsforsale.html Fun with numbers: 5,200 RPM, 3.54 axle, 29” OD tires>126.7 MPH—close to its record speed in 1955. With a 1.72 low gear ratio, the Brute ought to do about 73.7 MPH @ 5,200 RPM. That would be screaming but seems to provide a reasonably-high passing gear. 55 MPH in low would be 3,880 RPM –all numbers assume 0% slippage in the torque converter. I’d expect that slippage to be on the order of 5% at maximum RPM. I hope you get a few more warm days to enjoy the ride with fewest possible annoyances. C-300’ly, Rich Barber Warm and (too) dry in Brentwood, CA From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On Behalf Of Narve Nordanger Rich thanks for the tip, I’ll give that a try. The C-300 is at hand if weather should turn fair for a short day, in the meantime I am dealing with annoying issues like this one which the car has more than enough of. Another issue: George Riehl used to advertise that he could 300-ify your transmission if the original had been replaced at some earlier stage with a standard one. The opposite has apparently happened to my transmission, when it would previously hang out in 1st to at least 50 mph now after a rebuild that number is only 35 mph and highly unsatisfactory when using the car in the spirit of George. Is there anyone currently doing the 300-ifying of transmissions that could e.g. rebuild a standard Powerflite to correct 300-spec? My idea would be to get hold of the trans in the US and ship it to Norway after the rebuild. C-300ly Narve with #3N551161 __._,_.___ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to http://autos.groups.yahoo.com/group/Chrysler300/join and select the "Leave Group" button For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang
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