Mort Posted November 28, 2012 Share Posted November 28, 2012 What is the max revs that a 350 can be taken to downhill? Quote Link to comment https://www.bigmacktrucks.com/topic/28582-max-engine-revs/ Share on other sites More sharing options...
Lmackattack Posted November 28, 2012 Share Posted November 28, 2012 2300 RPM (if my memory is correct of the shop manual). however that is the suggested max rpm. our sled pulling truck turns about 2600 with stock heads. someone had said old stock valve springs start to float near 3k RPM 1 Quote Link to comment https://www.bigmacktrucks.com/topic/28582-max-engine-revs/#findComment-148492 Share on other sites More sharing options...
rsb502 Posted November 29, 2012 Share Posted November 29, 2012 The old ones do a lot better than the newer ones, the aset AI engines had an issue with the ceramic rollers on the cam over 2100rpm they would bounce and crack then run the cam down, happened on a bunch of 04-06 trucks here drivers would over rev em on hills and kill em. Quote "Any Society that would give up a little LIBERTY to gain a little SECURITY will Deserve Neither and LOSE BOTH" -Benjamin Franklin"If your gonna be STUPID, you gotta be TOUGH" "You cant always get what you want, but if you try sometimes you get what you need" Link to comment https://www.bigmacktrucks.com/topic/28582-max-engine-revs/#findComment-148523 Share on other sites More sharing options...
mowerman Posted November 29, 2012 Share Posted November 29, 2012 not really good to run it past 1900,,,less your shifting..bob Quote Link to comment https://www.bigmacktrucks.com/topic/28582-max-engine-revs/#findComment-148549 Share on other sites More sharing options...
rsb502 Posted November 29, 2012 Share Posted November 29, 2012 I hope nobody is shifting past 1900 rpm, Thats a whole lotta revs, even if you had a 5 spd it still seems high to me, I prefer the low rpm smooth shift to the wind er till she pops shift! Quote "Any Society that would give up a little LIBERTY to gain a little SECURITY will Deserve Neither and LOSE BOTH" -Benjamin Franklin"If your gonna be STUPID, you gotta be TOUGH" "You cant always get what you want, but if you try sometimes you get what you need" Link to comment https://www.bigmacktrucks.com/topic/28582-max-engine-revs/#findComment-148552 Share on other sites More sharing options...
Vladislav Posted November 29, 2012 Share Posted November 29, 2012 I wish I know revs I'm shifting.The truck that runs has tacho out of service.The other truck has, but it can't run.Will look a sensor of a flywheel although at a warm time. Quote Никогда не бывает слишком много грузовиков! leversole 11.2012 Link to comment https://www.bigmacktrucks.com/topic/28582-max-engine-revs/#findComment-148619 Share on other sites More sharing options...
mowerman Posted November 29, 2012 Share Posted November 29, 2012 I hope nobody is shifting past 1900 rpm, Thats a whole lotta revs, even if you had a 5 spd it still seems high to me, I prefer the low rpm smooth shift to the wind er till she pops shift!well thats the way we used to do it with the old 1700 to 2100 engines,,,that was loaded down,and on a slight grade,,,otherwise by the time you made your shift,,,it was below 1600 1600,they would quit pulling...bob Quote Link to comment https://www.bigmacktrucks.com/topic/28582-max-engine-revs/#findComment-148620 Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.