It looks like you're new here. If you want to get involved, click one of these buttons!
Check this out: http://www.gm.com/automotive/gmpowertrain/engines/vortec/apps/vehicle/images/lm7curve.jpg
As you can see the 5.3L makes it max torque of 325lb-ft @ a high 5200 rpms but is still putting out 300lb-ft @ just over 2000 rpms! Don't make the mistake of comparing engines based on maximum torque output alone. The maximum output of all the new Vortec motors comes at high rpms but there's plenty of power down low too.
Check out a torque curve for the iforce Tundra V8 and see what torque it's making at 2000rpms...that is if you can find a graph for it. I've never been able to locate one. I'd like to see it.
Here's your 4.8L graph-well the link won't copy so just click on the 4800 Vortec:http://www.gm.com/automotive/gmpowertrain/engines/vortec/apps/vehicle/vortec4300_lg3.htmLooks like you conveniently forgot to post the mighty Tundra's 4.7 iforce graph, huh? Anyway the point of my last post went over your head. No surprise there but the point I tried to make was that it's useless to judge an engine based on maximum toruqe alone. The 5.3 and 4.8 torque curves are fairly flat, and the 5.3L makes 300lb-ft at 2380rpms to be exact since you insist on it. I said it gets 300lb-ft at a little over 2000rpms, not 2000 as you knowingly misquoted me as claiming-get your stuff straight. Now, I'll let you go back to comparing the Tundra's V8 to the GM 4.8L since you get so upset when we compare it to the 5.3L!! BTW-I made an error in my last post. I stated the 5.3L reached max torque @ 5200rpms and that's wrong obviously. It's actually much lower @ 4000rpms. Sorry.
Help | About Us | Contact Us | Careers | Affiliate Program | Dealer Center | Privacy Statement | Visitor Agreement | Membership Agreement
Your Ad Choices | Site Map | Glossary | Mobile | Developers
© Edmunds.com, Inc.