6# lower only 18hp???

[H8IMPORTS]

Expected gains from the 4 pound pulley is 40 lbs.-ft. torque and 15 HP.

Expected gains from the 6 pound pulley is 50 lbs.-ft. torque and 18 HP

Thats it? I was thinking more. Crap I think I will jug it before the pulleys if thats all I get. Am I looking at it wrong? :shrug:

Thanks
Chris

 

[Kellyo77]

Stock blower just starts running out of breath. Not to mention airflow restrictions. That's why switching to a KB or Whipple makes so much difference.

 

[Derek@Amazon]

not sure where you got that info but im pretty sure most of our trucks make more then 18hp off of a 6lber and a tune...

 

[red-light]

that info is not correct.........from stock to a 6lber its around 100hp gain and 80lbs torque.

 

[chrisheltra]

I believe the info is right if thats all you change and nothing else. Such as tune, ported blower, CAI etc...

 

[ecoastkid]

I dyno'd 390 with a 4#, plugs, and a tune. (K&N drop in filter with some holes in the bottom)

No way those numbers are correct.

I think its closer to 50 for a 4# and 60 or 70 with a 6#

 

[wigginwilly00]

Every vehicle will be different in making H/P from boost. I've seen a gain of from a 417rwhp to a 421rwhp. This was using a ported blower switching a 4lber to a 6lbler. Then agiain with my Whipple, I increased 478 rwhp to 509 rwhp just by switching the same pulley combo.. It all depends on how many pieces of the puzzle you have put together that will create more Hp from boost..

 

[99boltsvt]

423 RWHP with a 6lb lower and a tune.

 

[H8IMPORTS]

I took that right off Lightning Force Performance website. My plans are to get my stock one ported and add a 6# pulley. Thats why I was asking if this is correct or not. I don't think it's worth 200.00 for 18 hp. If it was more like 60-70 it would be worth it. IMO

 

[canugo12s]

i know i went from to stock to 4lber then to 6lber and its a work od difference bewteen them all!

 

[Fade 2 Black]

If you go from a 4# to a 6# then expect 10-15 rwhp gain and 35-40 rwtq. The torque is what you're after. ;-)

 

[rlearp]

I went from stock with CAI at 366rwhp 440 rwtq, to a 6 lber with 400 rwhp and 505 rwtq. So about 34 rear wheel hp and 65 rear wheel torque from the 6 lb pulley.

Knock those figures up 15% for the dyno to crank conversion and I could claim 40 hp and 75 ft lbs of torque.

R

 

[spyder1337]

Man.. our dyno around here must read pretty low. My friend has a 03 lightning with a 6lb, exhaust, c & l plenum, air filter, and a custom tune and made 376/489. My truck on the same dyno made 360/450. We must not have our converters locked or something. Because when we go to the track our times are pretty good for the mods when comparing the times posted on NLOC....

 

[BlackBolt9]

Man.. our dyno around here must read pretty low. My friend has a 03 lightning with a 6lb, exhaust, c & l plenum, air filter, and a custom tune and made 376/489. My truck on the same dyno made 360/450. We must not have our converters locked or something. Because when we go to the track our times are pretty good for the mods when comparing the times posted on NLOC....

What brand/type of dyno is it? There are two common types and they will come up with different numbers. Dynojet and Mustang are the two typical brands with some others scattered in there as well. Dynojets will show bigger numbers than a Mustang dyno FWIW.

 

[spyder1337]

Yea this is a DynoJet, that's what I can't really figure out. Dyno's are for tuning purposes anyway Unless you own a supra!

 

[BlackBolt9]

Yea this is a DynoJet, that's what I can't really figure out. Dyno's are for tuning purposes anyway Unless you own a supra!

What are the conditions when you have been on the dyno? I can't imagine you're very high, but was it hot and humid? Did they correct the numbers for those conditions? That will make a huge difference in power of course. And I agree nothing speaks louder than who crosses the line first:beer:

 

[Tazman1]

Lets see. I have a 6 # lower and a stock upper. Stage 3 ported eaton, cai, 2400 maf, Amazon dyno tune. I make 443rwhp/and 500rwtq. Yes my internals are stock too.
Oh, that is on Ricks Mustang Dyno too.

 

[203Cree]

I went from 360/430 to 380/480 with a 4lber to 390/499 with my 6lber. However, I had ignition issues, clogged cats and it was heat soaked when I tuned the 6lber. I'm positive it's higher than that, because it's a night and day difference btwn the 4 and 6. Most boost I ever saw with the 4 on was 13psi... 6 I've peaked at 17 a few times, and that was in 55 degree weather, lol.

Bottom line, it's worth the money.

 

[Outlaw99]

if i remember correctly, off my #5L and #2U and a good tune, i got 25

 

[spyder1337]

What are the conditions when you have been on the dyno? I can't imagine you're very high, but was it hot and humid? Did they correct the numbers for those conditions? That will make a huge difference in power of course. And I agree nothing speaks louder than who crosses the line first:beer:

These were SAE numbers... 80 out and humid!