Does anyone know what the boost is on a stock L?

I have an '02 Harley Davidson edition, which is rated at 340 HP, whereas the L is rated at 380. I've also read in various places that the engine is the same and the HP difference can be accounted for by a lower boost value on the HD version. (I believed that because I compared the upper pulley on my truck with an L and the L is noticeably smaller.)

I've also read that the engine control limits the boost to 8 psi on the L.

I put a boost gage on my truck, and I measured 7 1/2 psi. Doesn't seem like 1/2 psi will account for the 40 HP difference.

So I'm wondering if the difference is simply in the code

 

the difference is mostly in the engine itself. the L's have aluminum heads, forged pistions, etc etc. I believe that you have cast iron on most of those components

 

Are you certain? I'm having trouble finding documentation about anything. Is this documented somewhere?

 

Spade$: he is talking about the 2002 harley davidson super-crew.. you know, the one with the LIGHTNING engine in it?

differences:
larger upper pulley (less boost)
different computer program
longer ehxaust (more restrictive)




same heads, cams, crank, MAF, airbox, intercooler, ect.