IH gas RPM

RV and bus conversion info since 1996.

Share Your Feedback

PRINT PAGE

RV Classifieds

		1965 Gm 4106 - $28,000
		1970 Eagle 05/15 - $50,000
		1977 Custom Built 2004 Conversion - $52,400
		2002 Beaver Marquis - $325,000
		2005 Coachmen Sportscoach Elite 401 TS - $174,000
		VIEW ALL
		Search RV Classifieds
		Classifieds Policies
		Benefits for Dealers
		Sell Your RV
		Dealer Signup

Useful Links

RV Community

		Discussion Groups
		RV Articles
		RV FAQs
		RV Classified Ads
		Virtual RV Park
		Shop at our Store
		RV Lifestyle Books
		Rate Your RV
		AllThingsRV.com
		MyRVGuide.com
		RVMechanic.com
		Advertise With Us

BECOME A MEMBER

RV Resources

		e RV Loans
		Sculptures for your RV
		Visit Rio Rancho, NM for Winter
		RV Dealers
		RV Manufacturers
		RV Rentals
		RV Glossary
		RV Types
		RV Ratings

IH gas RPM

Home > Discussion Forum > Mechanic's Corner (general)

email Will

reply to message

post new message

search forums

hidden layer

ATTENTION: All Postings that advertise items for sale will be deleted from the Discussion Forum. You may post sale items for free in the Classifieds section. Sign up now.

All Messages in Thread	Author	Date
IH gas RPM	Will	10-23-01
I have a 1984 IH bus with a 392 gas V8. There is no red line on the tach. What is max engine speed? I am using 3400 as max rpm and 3000 as max cruise rpm. Am I close?
Re: IH gas RPM	Bob	10-23-01
You are more then safe, I would say red line would be around 5 - 6 k if not more, guessing but top torque would be around 4700 I have a 1984 IH bus with a 392 gas V8. There is no red line on the tach. What is max engine speed? I am using 3400 as max rpm and 3000 as max cruise rpm. Am I close?
Re: IH gas RPM	Bob	10-25-01
Here is site with engine specs you need....I was wrong on red line http://www.binderbulletin.org/faq/7.htm#1 I have a 1984 IH bus with a 392 gas V8. There is no red line on the tach. What is max engine speed? I am using 3400 as max rpm and 3000 as max cruise rpm. Am I close?
Re: IH gas RPM	Mark O.	10-25-01
IHC gas engines are heavy duty truck engines, not glorified car engines like the GM 454 or Ford 460. The IHC engines are not designed to run at fast speeds. Redline on the IHC gas engines should be 3400-3500 and max cruise should be 3000-3200. Running an IHC up above 4000 is a sure way to have it end up in your lap in a zillion pieces. You go out of the max torque range at about 3200 RPM. You also do not want to lug the engine much below 1800-2000 RPM. Running any faster at cruise above 3200 will just waste gas. You won't notice an appreciable difference in the speed of the vehicle. Good luck and happy trails. Mark O.