whoopass harley

[I8ACHEVY]

I have a 02 HD with a single bore throttle body and the ram air kit ithat i put on to take to the track and ran a 14.06 and everything else is stock but if i put the lightning stock pulley will anything happen to it

[mytquik]

It would be better for you change out the lower pulley rather than the upper because of the PITA it is to get off. The lower is much easier to swap. The Lightning stock upper is said to give you a real gain of 2 psi. So 20 hps.

[I8ACHEVY]

so if i get the lower pulley its ok nothing will happen right

[RhinoHD]

Depends on what size lower you go with. I increased 2# over stock using the stock program and it was OK. If you go to 4, 6 or 8# over stock you should have a chip or programmer to adjust your tune. I put mine on the dyno when I went to +6# over stock with a Diablo chip and custom tune. If you increase your boost too much without changing the tune, you can run too lean and then you could end up in the exclusive blown motor club.

[I8ACHEVY]

im planning to put on the lightning stock bottom pulley i think its only a gain of 2 psi right.

[CDN 02 HD]

the bottom pulleys are the same the top ones are diff,
L 2.93 HD 3.25 i put on the L pulley and what a diff, now im putting on a 4# lower and ill get a honset 4#s.

[RhinoHD]

Originally posted by CDN 02 HD
the bottom pulleys are the same the top ones are diff,
L 2.93 HD 3.25 i put on the L pulley and what a diff, now im putting on a 4# lower and ill get a honset 4#s.

That's what I did, put the L upper on 2.93" and then put 4# lower on with new tune on dyno.

[CaliHarley]

hey guys im new to all of this someone please explain what all of this 4# lower is. I have a Superchip procramer on the way.

[RhinoHD]

Originally posted by CaliHarley
hey guys im new to all of this someone please explain what all of this 4# lower is. I have a Superchip procramer on the way.

I don't know about the Superchip programmer. I know that some programers come with 4# pulley programs already setup. I have a chip, so when I added the 6# extra boost, I put it on a dyno and had a custom program burned on my chip.

So if you add a 4# lower pulley, you will increase the boost by 2# on the HD and 4# on the Lightning. That is because the HD stock upper pulley is 3.25" and the Lightning upper pulley is 2.93". Therefore the Lightning has 2# more boost than HD when stock.

I put the Lightning upper pulley on=2# over stock. Then I added another 4# using a lower pulley. So now I am around 6# over stock on the HD.
If I had to do it again I would just add a Lightning 6# lower pulley and not mess with the upper. It can be a pain to get off and on. However, you would end up with the same result. +6# over stock boost on HD.:drink: Hope this made sense

[OUT2WIN]

Originally posted by I8ACHEVY
I have a 02 HD with a single bore throttle body and the ram air kit ithat i put on to take to the track and ran a 14.06 and everything else is stock but if i put the lightning stock pulley will anything happen to it

What was your 60' on the 14.06? mph? What track did you run it at?

[OUT2WIN]

I have seen a few harleys with more mods run those times. You must have a "freak truck"

[RhinoHD]

It does depend on the truck and the track. I know Venom ran 14.2 w/ just a filter. 60 foot time is huge with these trucks...so track prep can play a big part.

[OUT2WIN]

That still doesnt answer my questions?

[I8ACHEVY]

does it really matter to u that much cuz i dont think it matters to u because i think that ur harley if u had one couldnt touch mine OUT2WIN i know who u are and if u want to know the answer to the question all u have to do is call me. LOL LOL LOL

[OUT2WIN]

I thought you might wanna give some info on here. I know its a phone call away but, that takes out the fun of an informative forum. I dont have a harley that can touch yours, but you know I got something that can. LOL LOL LOL