5.4 engine limits?

[slick-svt]

I have had a lightning since last Nov. and have done some mods. (predator,mac intake, boost by pass, and mufflers don't know what kind on it when I bought it) and its still under warr. What kind of mods can a factory 5.4 handle before it shells out. It has almost 19000mi on it, I know some members have a lot more knowledge about this than I do.

[L8 APEX]

Generally about 410hp and 520tq reliably

. Most of an engine's life is up to the tune and the driver. I blew up my 01 with 390hp and a 2# pulley. Rob ran 500hp on his stock block and 17psi of KB boost. It is all how you treat it and a little luck.

[99WhiteBeast]

Come out to the Talon meeting this Wednesday night and you'll see a variety of trucks with different mod levels.

I been pushing 390HP/482TQ to the rear wheels for over 3 years with 90K on the ticker and it still runs strong and has never broke down.

There are a few in the club over 100k in miles and drive like they stole it everyday:burnout: .....cough...couch Jeffrey,Mike

[Alpine]

There are a few in the club over 100k in miles and drive like they stole it everyday:burnout: .....cough...couch Jeffrey,Mike http://www.svtperformance.com/forums/images/smilies/rockon.gif

[slick-svt]

I would like to but my wife works the night shift and I don't get home till about 5 and my 7 year old son is ready to play ball as soon as I walk in the door. I'll try to work in a meeting with every one in the near future. Maybe I could catch up with some of the ft worth guys aroud here

[03LightningRocks]

Generally about 410hp and 520tq reliably

. Most of an engine's life is up to the tune and the driver. I blew up my 01 with 390hp and a 2# pulley. Rob ran 500hp on his stock block and 17psi of KB boost. It is all how you treat it and a little luck.


LOL..........Rob never ran 500 H.P. on a stock block. Someone here did....but it wasn't Rob:rolleyes: .

Gawd...when a couple more years go by, you'll have that truck doing 10's in a head wind.


Rocks:rll:

[Shiner1]

490/603 with the spray, stock block.

[02BOLT]

LOL..........Rob never ran 500 H.P. on a stock block. Someone here did....but it wasn't Rob:rolleyes: .

Gawd...when a couple more years go by, you'll have that truck doing 10's in a head wind.


Rocks:rll:


Naw, It only made 485 RWHP on the stock block...;)

[Mark #2]

Naw, It only made 485 RWHP on the stock block...;)

Me either 498.1 HP at less than 10.0 A/F(it was off the scale rich), but that has been fixed a little bit now. 11.3 A/F, but I no longer need a dyno with the wideband.

[03LightningRocks]

Naw, It only made 485 RWHP on the stock block...;)


485 is close........;) . I just like to keep Terry in line when he's making entries in the history book.


Heck Mark...I didn't realize you where so close to it. Your about due for a new best time aren't you?


Rocks:D

[Mark #2]

485 is close........;) . I just like to keep Terry in line when he's making entries in the history book.


Heck Mark...I didn't realize you where so close to it. Your about due for a new best time aren't you?


Rocks:D

Yup, and that number was off the scale rich in the 90 degree temperture range, the new tune is still rich at 11.3 but that is with a 3.25 upper.
I will put the 3.0" on and data log soon in the cooler weather.
Mark

[03LightningRocks]

Yup, and that number was off the scale rich in the 90 degree temperture range, the new tune is still rich at 11.3 but that is with a 3.25 upper.
I will put the 3.0" on and data log soon in the cooler weather.
Mark


Let us know what she does....:tu: . When I hit 500 H.P. on my stock block, I was using the Apten ported heaton. My boost gage showed around 18-19 lbs of boost, if I am remembering right.

It's funny that it was such a big deal back then to run 475-500 HP on a stock block. Getting a stock block into the elevens was even considered special. Now it seems like it is no big deal to run mid elevens and lower on a stock block....I figure most of it has to do with the tuning getting better for the Lightnings.



Rocks:banana: