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What's the different between the Lightning 5.4 and the regular F-150 5.4?
I know there are some...but what are they? Or did Ford just slap a supercharger on the 5.4?
Does the Lightning have a piston/connecting rod/valvetrain upgrade? |
NO...YES...YES...YES...
------------------ Red OO Lightning born 8-14-00 brought home 9-16-00 Mod are the usual suspects.Air Raid intake, R9 superchip,Duel Flowmasters,2" drop out back, 18x10 torq thrust II wheels. 13.4 sec at 100 mph |
Pistons are forged (not cast), with lower compression.
Conrods, crank the same. Camshaft and steering wheel from the Mustang GT. Unique upper intake, intercooler, exhaust, (not the headers), muffler. |
Not Ford, Eaton put a Lightning on there supercharger.
FD Black 2001 Lightning Mods: ARE Ls II Hard Tonneau Bedliner Airaid Intake System Big Mouth Power Unit Black 2001 F150 SuperCrew 4X4 Lariat Off Road Package Chip Jet Performance K&N Gen II Intake System Ravin Gailord Hard Tonneau and Liner Go Rhino Sumatra Series Husky Liners Cobra and much more. |
BlackLight-
I'm confused... <font face="Verdana, Arial" size="2">Conrods, crank the same.</font> |
The connecting rods are not the same.
------------------ 2000 Black Lightning #1326 of 4966 Born on 03/20/2000 PSP Chip PSP Filter Best time: 13.335 @ 103.91 mph |
The conrods and the crank are exactly the same as in the normal 260 hp 5.4L V8.
Just as in other 5.4's, the conrods are forged and fracture-split to ensure a more precise fit onto the crank. Here's a copy from Motor Trend when they first tested the 1999 L: "The heart and soul of the Lightning is its supercharged 5.4-liter SOHC V-8. Compared to other Tritons, it boasts new forged pistons (to handle the elevated combustion pressures and drop static compression ratio), new intake tract (including new manifold and big-bore throttle body), water-to-air intercooler, and the all-important Eaton Roots-type supercharger." "One of the more impressive aspects of this engine is how few modifications were made to handle the extra 100 horses.) The only internal changes were unique forged pistons and stronger wrist pins. The piston change drops the compression ratio from 9.5 to 8.4. Virtually everything else is stock, including rods, crank, block, and front cover. Even the stock cast-iron exhaust manifolds were used. Steel headers were tried but proved too "noisy"-too bad. The rest of the exhaust system consists of a California-calibrated catalytic converter and a single high-flow muffler plumbed with dual stainless steel pipes to just ahead of the right rear tire." http://www.motortrend.com/june99/ford/ford_svt_f.html |
Slightly different topic...
The pistons are lowered compression, and forged to handle the additional HP... The connecting rods are ALREADY forged, therefore require no upgrade... Is the crank forged? |
The crank, rods and pistons are forged, and the rods are fractured, not machined. I was pretty sure the regular 5.4 uses machined rods, but I can't find a source for that. THe vlaves are different and the roller finger followers and hydraulic lash adjustment are unique to the S?C 5.4, according to the SVT literature. Also, the 4R100 tranny is a purpose built miodel for the Lightning, and is the stongest variation of that transmission built (actually that would make it the strongest light/medium truck automatic anyone builds, including GM's new allison 5 speed).
G |
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