460 mpg question
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ok i did research...so its possible the previous owner modified the torc converter to pull his trailer more efficiently.....
so what should be my rpm range normally and what should it be with a stall converter?
so what should be my rpm range normally and what should it be with a stall converter?
Freshman User
Joined: Jun 2007
Posts: 36
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ok i did research...so its possible the previous owner modified the torc converter to pull his trailer more efficiently.....
so what should be my rpm range normally and what should it be with a stall converter?
so what should be my rpm range normally and what should it be with a stall converter?
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Joined: Mar 2006
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From: fargo, nd
normally you shouldnt revv more than about 2000-2500 rpm running around town... a stall converter just raises the rpm the engine runs. you should have good power starting at 1200-1500 and pulling through about 3000-3500 rpm... if you slam on the gas from a stop it shouldnt revv more than 3-400 rpm before it sets you back... if it does revv more than that id swap in a stock converter. some race converters have a 5000 rpm stall... most performance converters run around 2200-3000 rpm, my maverick is getting a 1700 rpm stall but its a small light car thats getting a 300-350 horse small block 347 stroker
Last edited by darrin1999; Jun 29, 2007 at 12:55 AM.
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Originally Posted by darrin1999
normally you shouldnt revv more than about 2000-2500 rpm running around town... a stall converter just raises the rpm the engine runs. you should have good power starting at 1200-1500 and pulling through about 3000-3500 rpm... if you slam on the gas from a stop it shouldnt revv more than 3-400 rpm before it sets you back... if it does revv more than that id swap in a stock converter.
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Originally Posted by darrin1999
nah it shouldnt revv to more than 1200 from a stop without accelerating if you slam on it... if it revvs to 3000 then youve got a stall
i do think i recall it rev-ing around 2500 just driving around 30 - 35 mph but i wasnt paying it any attention i will have to check and make shure
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From: fargo, nd
have you ever driven a newer ford truck? hit the gas slowly and watch the tach, it revvs a good 400 rpm- up to about 1100-1200 before it even moves... i rented one one time back in 2001, i went back to the rental company because i thought there was something wrong with it, but they said thats the way it was supposed to be, so i took their word for it and drove it. thats what a stall converter does
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Originally Posted by darrin1999
have you ever driven a newer ford truck? hit the gas slowly and watch the tach, it revvs a good 400 rpm- up to about 1100-1200 before it even moves... i rented one one time back in 2001, i went back to the rental company because i thought there was something wrong with it, but they said thats the way it was supposed to be, so i took their word for it and drove it.
I miss my old trucks, i had a 76, a 78, and a 79. best trucks i ever had.
I also have a 1977 chevy c60 dumptruck...think runs like a champ. Better then this new fiberglass crap they have out. I used to have a 1976 ford f700. man that this kicked some *** when it came to torc....i think it had a 390? i dont remember mabye it was a modified clevland 400.... wasnt that bad on gas.
Right now my 77 c60 weighs 12,500 lbs and running off a 350 5-2 speed i get better milage then this 460! i get probably get about 7 or 8 mpg empty city and 11 highway and 5 and 9 loaded to the gills
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From: fargo, nd
if the p.o. had the tranny rebuilt and put a "shift kit" in that will change the rpms the transmission shifts at and how hard it engages gears... all kinds of modifications it could have had that make it feel like its got more power than it has, and make it suck gas worse than anything
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Originally Posted by darrin1999
if the p.o. had the tranny rebuilt and put a "shift kit" in that will change the rpms the transmission shifts at and how hard it engages gears... all kinds of modifications it could have had that make it feel like its got more power than it has, and make it suck gas worse than anything
thats possibible but i dont think so....how would i know for shure?
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Originally Posted by darrin1999
i prefer the 1978... the last year they didnt require cats for any truck under 8500 lbs gvw 
hey to hell with it.....straight pipe it , smoke stack style , duel pipe , with performer headers and a duel plane intake with two quad edelbrok carbs....
oh yeah.