3.73s would make first gear completely worthless in the T5, as you said about the .8 overdrive, I've got the wrong T5 for that...first in the T5 is 3.35. I think it would be like what we used to call a super granny low gear in farm trucks, just to get it rolling, then shift into second. I believe I'm going to have to rethink all of this and maybe go with a milder cam, one that gets the cruise revs down around 2000 and likes it. Anybody need a 272 H10 Cam dynamics cam for an AMC V-8?? Thanks everybody. Armand ----- Original Message ----- From: "Sandwich Maker" <adh@xxxxxxxxxxxxxxxxx> To: <amc-list@xxxxxxxxxxxx> Sent: Monday, March 22, 2010 12:48 PM Subject: Re: [AMC-list] Energizer Cam > " From: "Armand Eshleman" <aje1@xxxxxxxxxxxxxxx> > " > " > " Hey guys, > " > " The specs I received from Crane on the 272 H10 cam don't look suitable for > " my uses. > " With the T-5 transmission in fifth (.63 overdrive) and the rear end gearing > " (2.87-1) and 245/45-17 wheels/tires, the engine is turning about 2000 rpm > " at about 70 mph. I would have to drop down into 4th gear (1 to 1) to get > " the revs up into the cruising operating range of 2600 rpm or more where the > " cam likes to be. Many of the local roads aren't 70 mph speed limits either. > " Many are 60 or 65 mph, which lowers the rpm more. I'm not so convinced I > " want to do this cam swap........what do you guys think? > > yeah, without regearing it doesn't look so good. advancing the cam - > as with a cloyes multi-position timing set - would bring the happy > cruising revs down, but not 600rpm. with the 0.63 5th, you need 3.73s > in the rear to do that. > > [btw, anyone know if jeep 3.07s or 3.31s will or won't fit car amc20s?] > > fwiw, there are both 0.72 [gm f-car] and 0.80 [brit ford, warner oem] > 5th gears for the 2.95 t5. based on 2-3 and 3-4 splits, 0.8 is just > about where 5th ought to be... and it'd put you right about on the > button for cruising revs with your 2.87s. > http://www.britishv8.org/Articles/Borg-Warner-T5-ID-Tags.htm > ________________________________________________________________________ > Andrew Hay the genius nature > internet rambler is to see what all have seen > adh@xxxxxxxxxxxxxxxxx and think what none thought > _______________________________________________ > AMC-list mailing list > AMC-list@xxxxxxxxxxxx > http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com > > > -- > Internal Virus Database is out-of-date. > Checked by AVG. > Version: 7.5.560 / Virus Database: 270.12.26/2116 - Release Date: 5/15/09 6:16 AM > > _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com