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post #1 of (permalink) Old 12-15-2003, 06:03 PM Thread Starter
 
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Reasonable Cruising RPM Max?

Ok, i've always wondered, what is an acceptable cruising RPM for my motor, say anywhere from 15 min to over an hour. I have the 94 TBI 350 with just over 100k on the odo. Anything below 2200? 2500? 3000?
Anything over about 2200 i start to think im pushing it a little hard, am i being a wuss?

Thanks!
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post #2 of (permalink) Old 12-15-2003, 06:10 PM
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Re: Reasonable Cruising RPM Max?

actually, i'm like you, i like to keep cruising under 2200(that's @ 75-78mph). i have read online though, that V8s cruise anywhere from 18-2600, and of course, that's including all gear ratios and tranny combinations, FI-ed or carbed.

stock 265s and 342s cruised me at 1900 @ 70mph
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post #3 of (permalink) Old 12-15-2003, 06:49 PM
 
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Re: Reasonable Cruising RPM Max?

Not sure, but i cruise at 80mph @2000rpm
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post #4 of (permalink) Old 12-15-2003, 07:00 PM
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Re: Reasonable Cruising RPM Max?

Hmm, mine pulls 1500 or less at 60mph
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post #5 of (permalink) Old 12-15-2003, 09:11 PM
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Re: Reasonable Cruising RPM Max?

Mine is at 1900 at 70 mph with 285 tires and 3.42 gears.
post #6 of (permalink) Old 12-15-2003, 11:19 PM
 
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Re: Reasonable Cruising RPM Max?

Hhaha, all you fullsizers.

At about 110 km/h, my tach reads 4000rpm! lol
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post #7 of (permalink) Old 12-15-2003, 11:56 PM
 
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Re: Reasonable Cruising RPM Max?

i think my suburban went almost 3000 at 90mph.
i love my engine now... low low rpms.
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post #8 of (permalink) Old 12-16-2003, 12:01 AM
 
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Re: Reasonable Cruising RPM Max?

rumming 4.10 gears i amrougly 2000R's @ 75mph. with 35" tires
i am about 2300 at same speed with 1 inch meats. anything undr 24000 i feel comfortable with. p ast that, i change oil every 1.K miles using nothing other than valvoline. aside from "V" mobil one. nothing else will ever be in a vahicle of mine. My family has been usin valvoline since 1866 when it as developed. great garandpops used it wen he went from blacksmith to fixing vehicles, grandpa used in his certified shop, pops uses it and i was borne and raised into it, nver had a problem with it aside from hitting a tree at 35MPH and crushid radiator adn hole in oil filter. no oil, and no cooolant makes for 4 miles and welded cam sgtt and lifters. "V" synpower and it ran like chap after, no rebuild, just breaking welds and new timing chain. "V" is the way to gfo
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post #9 of (permalink) Old 12-16-2003, 11:42 AM
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Re: Reasonable Cruising RPM Max?

Ya I also got 3.42's and 285's... Hey U4IA4, I must have missed something? Did you get a new truck or did you lift the other one??? OT- but I like the fact the 350 puts out 330lbs at 2800... These new engines put it out less clear up at like 4000+ thats retarded.
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post #10 of (permalink) Old 12-16-2003, 01:32 PM
 
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Re: Reasonable Cruising RPM Max?

Well I dont have a Tach so I couldnt tell ya and also my RPM range is probably different then you guys since I have a diesel but, my OD kicks in about 53 so at 55 IM barely over my idle speed. Even at about 75 it doesnt really seem to be reving hard.
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