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Old Apr 18, 2006 | 01:35 PM
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Just Wonderin Guys On How Much Hp The Hd Trucks Have With The Supercharger And Also The Lightnings? My Boss Has A 02 Hd Crew Cab With Flowmasters A 8lb Or 12lb Pulley And Programmer, Just Wonderin On What Yall Think It Would Run In The Qaurter? Im Not Sure About The Pulley Exactly I Just Know He Went 1 Up From The Stock One. Also What Years Were These Trucks Made And The Differnces Between The Two. I Thought The Lightnings Had A 5.4 With 390hp , And The Hd's Had A Supercharged 4.6ltr With 260 Hp? What Times Do Yall See From Both These Vehichles Stock? Educate Me Please
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Old Apr 18, 2006 | 01:36 PM
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And By Hd I Mean Harley Davidson Trucks.
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Old Apr 18, 2006 | 02:15 PM
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The HD's and the Lightnings have virtually the same engine. Same displacement, same supercharger. The difference is the HD has a bigger upper supercharger pulley and makes 6psi of boost. The lightnings make 8psi.

From the factory the HD is rated at 340HP and 440ft*lbs I believe. The Lightning has 380HP and 450ft*lbs torque.

I doubt that your boss has a 8lb or 12lb pulley. I don't think a 12lb has ever been made? If he has one pulley up from stock which is a 2lb pulley which would put him at 8psi total, then basically he would make about the same power as a Lightning. I'd estimate 360hp at the wheels.
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Old Apr 18, 2006 | 02:35 PM
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Originally Posted by SnipeJDM
The HD's and the Lightnings have virtually the same engine. Same displacement, same supercharger. The difference is the HD has a bigger upper supercharger pulley and makes 6psi of boost. The lightnings make 8psi.

From the factory the HD is rated at 340HP and 440ft*lbs I believe. The Lightning has 380HP and 450ft*lbs torque.

I doubt that your boss has a 8lb or 12lb pulley. I don't think a 12lb has ever been made? If he has one pulley up from stock which is a 2lb pulley which would put him at 8psi total, then basically he would make about the same power as a Lightning. I'd estimate 360hp at the wheels.


As far as years go...

2000 - Ext. Cab -NA 5.4 - 260 at the crank
2001 - 4 Dr - Same motor - same power
2002 - Same - S/C 5.4 - 340 at the crank
2003 - Same - Same
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Old Apr 18, 2006 | 04:42 PM
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If I had to guess I'd say w/ a 2lb lower and a programmer he might have 330-340 at the wheels.
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Old Apr 18, 2006 | 09:17 PM
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anybody got any ideas on 1/4 mile times?
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Old Apr 18, 2006 | 09:25 PM
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I've heard stock 99-00 Ls are anywhere from 13.5-14 in the 1/4 w/ 01+ being in the 13.2-13.7 range.The HDs I have no clue.Maybe a sec or so slower because of the weight and lower power.
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Old Apr 18, 2006 | 10:09 PM
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Most of the HD's are in the 14's stock. He might be in high 13's, kinda hard to know exactly.
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Old Apr 19, 2006 | 02:21 AM
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He might have meant one up from stock meaning a 6# lower, which typically what they put on the HD's like tuners put 4# pulleys on the L's.

Like stated, hard to tell from what he has. I have seen a bone stock 01-04 Lightning run 13.1 in the 1/4, as well as bone stock 01-04 L's run mid to upper 13's. Every truck is different.

I think some L guys in TALON that have Harley trucks too were runnin in the 14's, but dont quote me on that.
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Old Apr 19, 2006 | 04:13 PM
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Originally Posted by BC Lightning
He might have meant one up from stock meaning a 6# lower, which typically what they put on the HD's like tuners put 4# pulleys on the L's.
Ok now I'm lost.I thought the HD's had the same setup as the L's but just w/ a different tune.
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