8 pound pulley...
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From: orlando
8 pound pulley...
what are everyones thoughts about an 8 pound pulley.....thursday im either buying a 6 or an 8.....is the difference THAT noticeble between the 2? i know everyone is going to tell me run a 4 or 6 pounder but i like things in excess, and yes it is a stock block.....so i would like some input from people that actually have had both or one of them in...would a 8 pounder with a safe tune be better than a 6 pounder with a more "potent" tune....what kind of hp would i be putting out with an 8pounder wchip vs a 6 pounder w/chip...it is a daily driver by the way with the bimonthly track visit
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From: here
An 8 lb. pulley creates a LOT of heat and you're drastically overspinning the stock Eaton. Not worth it IMO and with pulleys, the bigger you go, the more apparent the law of diminishing returns will be.
Stick with a 4 lber. and find other ways to increase power.
Stick with a 4 lber. and find other ways to increase power.
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From: Paradise
I just purchased the KB with a 6 lb lower and 2 lb upper. After gathering a great deal of advice from guys who have lived it and tuners, this is the max.
I was told, even with a conservative tune I would be flirting with danger on a stock lower if I went with an 8lb on the bottom. Even at that I am pushing the limit, but what the hell, life is too short.
I was told, even with a conservative tune I would be flirting with danger on a stock lower if I went with an 8lb on the bottom. Even at that I am pushing the limit, but what the hell, life is too short.
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From: NEW JERSEY
Well from a guy who has been running that "crappy "8 # lower pulley now for 8 months with thousands of miles (just drove to Indiana and back and also Virginia and raced and drove back)and lots of 1/4 passes (many in the 11s) all I can say is so far so good.
As I do agree with the panel to a certain extent about the heat, BUT the low end torque is quite AWESOME and very addicting.
With that said I also do NOT recommend it. I am getting a built motor and Jim@JDM yells at me weekly about it still being on my Lightning after I promised him I would take it off last year after I ran my 11, (So I fibbed a little
). His take on it is the Kickdowns and the constant torque will eventually takes its toll on the rods and I agree.
Get the 6# . You will be more then happy.
VINNIE
As I do agree with the panel to a certain extent about the heat, BUT the low end torque is quite AWESOME and very addicting.
With that said I also do NOT recommend it. I am getting a built motor and Jim@JDM yells at me weekly about it still being on my Lightning after I promised him I would take it off last year after I ran my 11, (So I fibbed a little
). His take on it is the Kickdowns and the constant torque will eventually takes its toll on the rods and I agree.Get the 6# . You will be more then happy.
VINNIE
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From: here
Originally posted by VINNIE
Well from a guy who has been running that "crappy "8 # lower pulley now for 8 months with thousands of miles (just drove to Indiana and back and also Virginia and raced and drove back)and lots of 1/4 passes (many in the 11s) all I can say is so far so good.
As I do agree with the panel to a certain extent about the heat, BUT the low end torque is quite AWESOME and very addicting.
With that said I also do NOT recommend it. I am getting a built motor and Jim@JDM yells at me weekly about it still being on my Lightning after I promised him I would take it off last year after I ran my 11, (So I fibbed a little ). His take on it is the Kickdowns and the constant torque will eventually takes its toll on the rods and I agree.
Get the 6# . You will be more then happy.
VINNIE
Well from a guy who has been running that "crappy "8 # lower pulley now for 8 months with thousands of miles (just drove to Indiana and back and also Virginia and raced and drove back)and lots of 1/4 passes (many in the 11s) all I can say is so far so good.
As I do agree with the panel to a certain extent about the heat, BUT the low end torque is quite AWESOME and very addicting.
With that said I also do NOT recommend it. I am getting a built motor and Jim@JDM yells at me weekly about it still being on my Lightning after I promised him I would take it off last year after I ran my 11, (So I fibbed a little
). His take on it is the Kickdowns and the constant torque will eventually takes its toll on the rods and I agree.Get the 6# . You will be more then happy.
VINNIE
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From: NEW JERSEY
Originally posted by cyntaxx
Vinnie, when you get your stuff all installed and everything (built motor and KB was it?) do you plan on allowing for downshifts on the highway? I know some had their programming adjusted for this to try and save the tranny...
Vinnie, when you get your stuff all installed and everything (built motor and KB was it?) do you plan on allowing for downshifts on the highway? I know some had their programming adjusted for this to try and save the tranny...
Have not made that decision yet. Charlie ran a 10.74 on a stock tranny with only a line mod (of course he does not daily drive his L though)
For now I will leave it and see what happens, eventually I do see a monster box in my future, but for now I have a Wedding, Honeymoon in Hawaii (hopefully I will get to see some Ls there-Do you here me DJ1)and furniture to worry about.
VINNIE
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From: Imperial Valley, Ca
Ok one more time!! You are not in max boost all the time. Under normal driving you hardly get into the boost. I dont see how a 8# pulley can create more heat when you are not using those 8#s all the time. If you could see when you are on the highway doing like 80 the boost needle doesnt move its at the bottom. So how could it create more heat than a lower boost pulley? The thing to worry about is the rods holding up not the heat. I myself run a 5# lower and a 2.7 upper. Im in the process of puting back a stock upper and switching the 5# for a 8#. Just my point of view.
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From: here
Originally posted by s.cal L
Ok one more time!! You are not in max boost all the time. Under normal driving you hardly get into the boost. I dont see how a 8# pulley can create more heat when you are not using those 8#s all the time. If you could see when you are on the highway doing like 80 the boost needle doesnt move its at the bottom. So how could it create more heat than a lower boost pulley? The thing to worry about is the rods holding up not the heat. I myself run a 5# lower and a 2.7 upper. Im in the process of puting back a stock upper and switching the 5# for a 8#. Just my point of view.
Ok one more time!! You are not in max boost all the time. Under normal driving you hardly get into the boost. I dont see how a 8# pulley can create more heat when you are not using those 8#s all the time. If you could see when you are on the highway doing like 80 the boost needle doesnt move its at the bottom. So how could it create more heat than a lower boost pulley? The thing to worry about is the rods holding up not the heat. I myself run a 5# lower and a 2.7 upper. Im in the process of puting back a stock upper and switching the 5# for a 8#. Just my point of view.
But you're still walking the ragged edge as far as the Eaton's efficiency.
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From: South Florida
pulleys
You can get away with a 6# or an 8#, I would recomend the 6# if you do a lot of highway cruising ,city and some strip, stop light to stop light the 8#, but traction and heatwill be a formiddable problem...I am personally overspinning the $%#^ out of my eaton, what I found is that my horsepower will not go up, even with the water-alcohol injection..my motor just keeps making more and more torque...therefore the efficiency of the eaton is at its end...its a lot of fun to blow your tires off, but I also like a strong up-stairs charge....and I think the 6# and chip will work the best for you.......PG
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From: Selden NY
Yeller916
It all depends on your driving habbits. True that the 8lbr will not always be at major boost, but it will boost quicker, and more often, at less pedal. Another words overall YOU WILL be putting lots of extra heat and pressure in the cylinders. If you don't use it as a daily driver,
( or drive like a whimp on the streets ""like V""
)
then it's no big deal since the track days will be the only time you truly kill it. But beware the 8lbs can actually slow you down, due to extra heat. Runing that much boost will demand you have electric fans, intercooler switch, long cool downs between passes, iceing it down, etc....
Otherwise, don't be surprised if it works against you, especially if you race in hot weather.
It all depends on your driving habbits. True that the 8lbr will not always be at major boost, but it will boost quicker, and more often, at less pedal. Another words overall YOU WILL be putting lots of extra heat and pressure in the cylinders. If you don't use it as a daily driver,
( or drive like a whimp on the streets ""like V""
) then it's no big deal since the track days will be the only time you truly kill it. But beware the 8lbs can actually slow you down, due to extra heat. Runing that much boost will demand you have electric fans, intercooler switch, long cool downs between passes, iceing it down, etc....
Otherwise, don't be surprised if it works against you, especially if you race in hot weather.
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From: Huntington Beach/CA
Originally posted by s.cal L
Ok one more time!! You are not in max boost all the time. Under normal driving you hardly get into the boost. I dont see how a 8# pulley can create more heat when you are not using those 8#s all the time. If you could see when you are on the highway doing like 80 the boost needle doesnt move its at the bottom. So how could it create more heat than a lower boost pulley? The thing to worry about is the rods holding up not the heat. I myself run a 5# lower and a 2.7 upper. Im in the process of puting back a stock upper and switching the 5# for a 8#. Just my point of view.
Ok one more time!! You are not in max boost all the time. Under normal driving you hardly get into the boost. I dont see how a 8# pulley can create more heat when you are not using those 8#s all the time. If you could see when you are on the highway doing like 80 the boost needle doesnt move its at the bottom. So how could it create more heat than a lower boost pulley? The thing to worry about is the rods holding up not the heat. I myself run a 5# lower and a 2.7 upper. Im in the process of puting back a stock upper and switching the 5# for a 8#. Just my point of view.
Go with a 4# lower and a 75 shot of juice.