whats the difference in 5.3 hp rating??

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Sep 4, 2007 | 08:50 AM

#11

shandy294

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From: Cibolo Tx

Quote:

Originally Posted by badinfluencelsx

yea... i still havent figured that out for my 4.8 yet either. mine was rated at 255hp 285tq and somehow they are up 40hp 20tq since then. the cam changed but not enough for 40hp.

the 4.8 is 295hp now?

Sep 4, 2007 | 08:55 AM

#12

explorer5.0

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From: oxford, MS

Quote:

Originally Posted by shandy294

the 4.8 is 295hp now?

Yeah, in the 07's. I had a 07 4.8 crew cab rental while my F150(3v 5.4) was in the shop- now my truck stock has 300hp and 360tq, but the new 4.8 felt MUCH stronger on the top end than my 5.4. Part of it could be that the 4.8 revved to 6500rpm, while my 5.4 never sees 5000rpm.

Sep 4, 2007 | 09:42 AM

#13

Moddoo

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From: Forest Lake, MN

Quote:

the 4.8 revved to 6500rpm

Are you exaggerating a little bit?

Stock tune shifts at 5600 from 1-2 and 5200 from 2-3

Last edited by Moddoo; Sep 4, 2007 at 09:50 AM.

Sep 4, 2007 | 09:48 AM

#14

Coban

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From: League City, TX

They put high flow cats in the exhaust for 03-04. That was a 10HP gain.

Sep 4, 2007 | 10:38 AM

#15

explorer5.0

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From: oxford, MS

Quote:

Originally Posted by Moddoo

Are you exaggerating a little bit?

Stock tune shifts at 5600 from 1-2 and 5200 from 2-3

The tach on this truck was definately going past 6k.

Sep 4, 2007 | 11:03 AM

#16

Moddoo

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From: Forest Lake, MN

hey,
I guess I was looking at a 2006 tune.
the 2007 is listed as 295 hp at EDIT:5600rpm.
so they must be shifting a bit higher.
But 6500 would really surprise me.

Now I need to find out. LOL

Last edited by Moddoo; Sep 4, 2007 at 11:21 AM.

Sep 4, 2007 | 11:06 AM

#17

jakebdb56

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From: Houston, TX

Quote:

Originally Posted by Moddoo

hey,
I guess I was looking at a 2006 tune.
the 2007 is listed as 295 hp at 5800rpm.
so they must be shifting a bit higher.
But 6500 would really surprise me.

Now I need to find out. LOL

just go test drive one

The NBS truck motors are still the same blocks right? I know there's the 6.2 out there, but haven't really been able to look into the 07 trucks yet. The 6.2 is just for the escalade this year right?