Hi i recently bought a boost kit for my 02 L. I orderd a 6#lower pulley, they gave me a 8# lower pulley, will it be safe to run the 8# lower pulley. The other mods i have is the Diablo Predator, exhaust, c&l intake pipe with cold air and mass air flow sensor. WILL IT BE FINE TO RUN 8# LOWER PULLEY. PLEASE HELPPPP!
17 Psi Of Boost
- Thread starter ford_lightning
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nope. I def. wouldn't. Send it back.
noooooooooooooo
I think you will be treading on thin ice. I personally wouldn't go over 14lbs. Might be a matter of time after you run the 17lbs that you experience parts of your engine exiting the block in a most harmful manner.
:lol: :lol: :lol: :lol:
OK i have the boost bypass so it has like 9 and a half pounds of boost, if i get the 6#pulley i will have 15 pounds thats safe isnt it.?
I ran a 6. But the 4lb is the way to go. The 6 gives very little gains over the 4 and over spins the Eaton.
Larry speaketh the truth I am running a 6#er and will switch to a 4 as soon as the right deal comes along .
As with many things bigger is not always better, The added heat all but cancels out the HP from more boost.
As with many things bigger is not always better, The added heat all but cancels out the HP from more boost.
thanks larry,so the 4# pulley will have me at 13lbs of boost, how does everyone i talk to have 14lbs of boost
a cai will usually let the truck breath better so you can get an other pound out of just that
I have a cai and i didnt gain any boost. With the boost bypass i have 9 and a half and right before it shifts, it hits 10 .
So will a 4# pulley get me to 14psi
Factory gauge?? They are very inaccurate. JFP
The technical term is "custom block ventilation''...........LOL:lol: :lol:
4# and Apten port job will get you 14psi. Thats what I am running right now.
then what times will a normal lightning b running w #4 pulley and a proper tune w the nomal mods such as boost bypass and cai?
Listen to larry. I almost made the same mistake a while back. I run a 4 now, and all is better.
Blown347Hatch
so long
I'm running a 6lb lower. JLP said it would be fine. I have noticed a lot of posters regurgitate the added supposed heat generated by the 6lb over the 4lb, citing the 4lb as being the better choice. However, nobody accounts for the added lower end - mid range power/torque you get from spinning the blower a little harder. On my low 9 sec Mustang, overspinning that blower netted me the fastest times. The 6lb lower is fine unless you are racing top end for an extended period of time. If that's the case, then I agree with the "added heat" concerns. But if the 6lb lower is worth 5-10 peak HP, I'll take it!
Totally agree with you. My truck picked up generous amounts of torque with the increase of boost. The hp did not jump as much but torque is what moves these trucks!
Josh
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