Re: engines

Posted by rich4 on August 12, 2007 at 11:42:55 from (74.60.110.90):

In Reply to: engines posted by chevy guy on August 11, 2007 at 18:17:10:

That 4.8 is a higher reving engine than the 5.3 ltr. The 5.3 isn't much better, it developes peak torque at 4200rpm. The 4.8 Peak torque at 4800rpm sounds more like a race engine then a truck engine. High rpm torque curves does not translate into great fuel mileage. Drag racing is one thing, real world torque pulling something from a dead stop is something else. The factory stickers should give you an indication of what to expect for gas mileage. (both should be similar) My little 4.0 Ford has but 60% the hp as the 4.8 but it developes peak torque at half that rpm so can pull a trailer just as well, as it is allways in it power/torque band. Many manufacturers are getting into a HP war and the real truck pulling power is getting lost. I think the new 300hp high rpm engines are not what you may have experienced with your older 5.7 liter.

Replies:

Add a Reply Name: E-Mail: Subject: Comments: Optional Link URL: Link Title: Optional Image URL: Email Notification: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.

TRACTOR PARTS	TRACTOR MANUALS

We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]