Pulleys

Patrick Boetticher · 02-16-2001, 01:24 PM

this guy at work who i thouht knew his stuff about stangs told me that putting pulley on my car will ruin the engine, bucause that it made the rotating mass diferent so that it will screw up the crank. also this guy from school told me that two. i think it is a bunch of BS...

------------------
PPG Torch Red 95GT, Ported Explorer Intake, E-303 cam, 75mm MAS, BBK Adj. fuel Reg & gauge, BBK Shorty Headers, BBK H-pipe, March Pulleys, 2 Chamber Flowmasters, Kenny Brown 6 point Roll cage, Kenny Brown Panhard Bar, Powerslot Rotors, Eibach Sportline Springs, 180* Thermostat, 1/2 Plenum Spacer, MSD 6AL, MSD Master Blaster, MSD 8.8 Wires, 19# Racing Injectors, AFS 10.5" Cobra R's, Nitto 555's, Eclipse & JL Stereo System... I just sold My K&N, It looks funny with Stock Air Box & filter!!!

95mustanggt · 02-16-2001, 04:09 PM

Tell you buddies they're morons. The only change to the "rotating mass" is the mass of the pulley itself, and if that messes up your engine, take the engine back to the honda dealer and get a 302 from the Ford dealer.

Pulley's will reduce the radial force (torque) required from the crankshaft. The force is then added to the crank on the backside (flywheel side). It has nothing to do with "rotating mass".

Tell these guys to stop smoking crack.

------------------
White 1995 Mustang GT
Dynomax Cat-Back, Offroad H-pipe, K&N Filters w/o Air Silencer
My 1995 Mustang GT

02-16-2001, 05:37 PM

Why don't you ask these "geniuses" why my extra blower pulley on the end of my stock crank hasn't ruined my engine yet! Am I just lucky? (along with the thousands of other blower cars out there!)

------------------
91 coupe
3.73's,long tubes,2 1/2" exh,ported stock t-body,ProM-77mm
cobra intake,edelbrock heads,B303,1.72 rr's
36lb inj's,tremec, & a Paxton NOVI 2000!!!
11.020 @128.95 on BFG Drag Radials (275/60/15)

chris91LX · 02-16-2001, 05:38 PM

Ditto, 95mustanggt!

All mine ever did was make my pony faster.

------------------
91 LX 5.0
Z t-5, 3:73 gear, Vortech 73mm Mass Air, Accufab 65mm TB, BBK underdrives, Crane HI-6S Ignition, BBK unequal length headers, Bassani x pipe, 2.5" Dynomax Super Turbo cat back, Kenny Brown Super Subs, Factory Five Control Arms, Mac cold air kit and more to come!

jonnyk · 02-16-2001, 06:34 PM

The 5.0L engine isn't affected by pulleys, but the 4.6's use them for balancing also. Maybe that's where some of the confusion came from.

------------------
1991 LX Hatch 5.0L

Patrick Boetticher · 02-17-2001, 04:29 PM

i keep sain He smoking a lot of crack but he keeps insisting thats he right, i ahve come back with all of those remarks exept the honda one but he keeps saying it... thinking back... i dont think he has ever done engine work to a 5.0 only 4.6 hes only done suspention work to 5.O and he does infact know his stuff about suspention....

thanks

95mustanggt · 02-17-2001, 07:46 PM

Quote:

Originally posted by jonnyk:
The 5.0L engine isn't affected by pulleys, but the 4.6's use them for balancing also. Maybe that's where some of the confusion came from.

Are sure jonnyk? I may not be a mechanic, but as an engineer I do know a lot about the laws of physics. Unless the pullies are weighted some how, the "rotating mass", more specifically the inertia of the pullies, would be insigificant.

Like I said I don't know $hit about the 4.6 L, but physically it would not add up.

Oh and jonnyk, we have to meet up before I take off to Texas

------------------
White 1995 Mustang GT
Dynomax Cat-Back, Offroad H-pipe, K&N Filters w/o Air Silencer
My 1995 Mustang GT

Capri306 · 02-17-2001, 08:47 PM

I agree with the crack theory. He might know his suspension, but that doesn't count for jack squat when it comes to powertrain components. My best friend worked for a big suspension component company for a long time, and he's good with suspension setups, but he's not exactly an expert motor builder if ya know what I mean, no offense to him. Conversely, I'm great with motor building, but I'm only pretty good with suspension. Go figure...

------------------
Capri306, Moderator, The Mustang Works Online
1979 Mercury Capri, 5.0L -- C4 -- 2.73
1987 Mustang LX Notch

mitymerc · 02-17-2001, 10:08 PM

i bet they both drive lowered s-10's or ricers.......LOL!!!!!

Patrick Boetticher · 02-17-2001, 11:09 PM

One drives a 80?'s saleen the other drives a 98 gt with all the goodies but no engin mods.. i does sound like a Honda-guys thery though... CRACK HEADS!!!! i guuess thell bee looking at my tail light cuz i got the pulleys and they dont... (not like it makes any massive difference)

------------------
PPG Torch Red 95GT, Ported Explorer Intake, E-303 cam, 75mm MAS, BBK Adj. fuel Reg & gauge, BBK Shorty Headers, BBK H-pipe, March Pulleys, 2 Chamber Flowmasters, Kenny Brown 6 point Roll cage, Kenny Brown Panhard Bar, Powerslot Rotors, Eibach Sportline Springs, 180* Thermostat, 1/2 Plenum Spacer, MSD 6AL, MSD Master Blaster, MSD 8.8 Wires, 19# Racing Injectors, AFS 10.5" Cobra R's, Nitto 555's, Eclipse & JL Stereo System... I just sold My K&N, It looks funny with Stock Air Box & filter!!!

02-16-2001, 01:24 PM	#1
Patrick Boetticher Registered Member Join Date: Feb 1999 Location: Camarillo/Thousand Oaks Ca Posts: 223	Pulleys this guy at work who i thouht knew his stuff about stangs told me that putting pulley on my car will ruin the engine, bucause that it made the rotating mass diferent so that it will screw up the crank. also this guy from school told me that two. i think it is a bunch of BS... ------------------ PPG Torch Red 95GT, Ported Explorer Intake, E-303 cam, 75mm MAS, BBK Adj. fuel Reg & gauge, BBK Shorty Headers, BBK H-pipe, March Pulleys, 2 Chamber Flowmasters, Kenny Brown 6 point Roll cage, Kenny Brown Panhard Bar, Powerslot Rotors, Eibach Sportline Springs, 180* Thermostat, 1/2 Plenum Spacer, MSD 6AL, MSD Master Blaster, MSD 8.8 Wires, 19# Racing Injectors, AFS 10.5" Cobra R's, Nitto 555's, Eclipse & JL Stereo System... I just sold My K&N, It looks funny with Stock Air Box & filter!!!

Thread Tools
Show Printable Version Email this Page
Display Modes	Rate This Thread
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode	Rate This Thread:

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Underdrive Pulleys	stangbanger3	Modular Madness	2	04-26-2004 12:11 PM
pulleys	strokerman	Classic Mustangs	0	05-26-2002 07:23 PM
pulleys	strokerman	Classic Mustangs	2	04-25-2002 09:11 PM
Supercharging...remove underdrive pulleys??	quick89gt	Windsor Power	4	04-03-2001 10:15 PM
ASP underdrive pulley's	Shotgun28	Windsor Power	2	01-15-2001 12:55 AM

02-16-2001, 04:09 PM	#2
95mustanggt Registered Member Join Date: May 2000 Location: Kamloops, BC Posts: 2,875	Tell you buddies they're morons. The only change to the "rotating mass" is the mass of the pulley itself, and if that messes up your engine, take the engine back to the honda dealer and get a 302 from the Ford dealer. Pulley's will reduce the radial force (torque) required from the crankshaft. The force is then added to the crank on the backside (flywheel side). It has nothing to do with "rotating mass". Tell these guys to stop smoking crack. ------------------ White 1995 Mustang GT Dynomax Cat-Back, Offroad H-pipe, K&N Filters w/o Air Silencer My 1995 Mustang GT

02-16-2001, 05:37 PM	#3
SisuStang Guest Posts: n/a	Why don't you ask these "geniuses" why my extra blower pulley on the end of my stock crank hasn't ruined my engine yet! Am I just lucky? (along with the thousands of other blower cars out there!) ------------------ 91 coupe 3.73's,long tubes,2 1/2" exh,ported stock t-body,ProM-77mm cobra intake,edelbrock heads,B303,1.72 rr's 36lb inj's,tremec, & a Paxton NOVI 2000!!! 11.020 @128.95 on BFG Drag Radials (275/60/15)

02-16-2001, 05:38 PM	#4
chris91LX Registered Member Join Date: Oct 1998 Location: Suburban Chicago, Hanover Park Posts: 695	Ditto, 95mustanggt! All mine ever did was make my pony faster. ------------------ 91 LX 5.0 Z t-5, 3:73 gear, Vortech 73mm Mass Air, Accufab 65mm TB, BBK underdrives, Crane HI-6S Ignition, BBK unequal length headers, Bassani x pipe, 2.5" Dynomax Super Turbo cat back, Kenny Brown Super Subs, Factory Five Control Arms, Mac cold air kit and more to come!

02-16-2001, 06:34 PM	#5
jonnyk Being stroked is great Join Date: Oct 1998 Location: Alberta, Canada Posts: 772	The 5.0L engine isn't affected by pulleys, but the 4.6's use them for balancing also. Maybe that's where some of the confusion came from. ------------------ 1991 LX Hatch 5.0L

02-17-2001, 04:29 PM	#6
Patrick Boetticher Registered Member Join Date: Feb 1999 Location: Camarillo/Thousand Oaks Ca Posts: 223	i keep sain He smoking a lot of crack but he keeps insisting thats he right, i ahve come back with all of those remarks exept the honda one but he keeps saying it... thinking back... i dont think he has ever done engine work to a 5.0 only 4.6 hes only done suspention work to 5.O and he does infact know his stuff about suspention.... thanks

02-17-2001, 08:47 PM	#8
Capri306 Moderator Join Date: Sep 1998 Location: Grand Rapids, Michigan, USA Posts: 1,001	I agree with the crack theory. He might know his suspension, but that doesn't count for jack squat when it comes to powertrain components. My best friend worked for a big suspension component company for a long time, and he's good with suspension setups, but he's not exactly an expert motor builder if ya know what I mean, no offense to him. Conversely, I'm great with motor building, but I'm only pretty good with suspension. Go figure... ------------------ Capri306, Moderator, The Mustang Works Online 1979 Mercury Capri, 5.0L -- C4 -- 2.73 1987 Mustang LX Notch

02-17-2001, 10:08 PM	#9
mitymerc Registered Member Join Date: Jan 1999 Posts: 53	i bet they both drive lowered s-10's or ricers.......LOL!!!!!

02-17-2001, 11:09 PM	#10
Patrick Boetticher Registered Member Join Date: Feb 1999 Location: Camarillo/Thousand Oaks Ca Posts: 223	One drives a 80?'s saleen the other drives a 98 gt with all the goodies but no engin mods.. i does sound like a Honda-guys thery though... CRACK HEADS!!!! i guuess thell bee looking at my tail light cuz i got the pulleys and they dont... (not like it makes any massive difference) ------------------ PPG Torch Red 95GT, Ported Explorer Intake, E-303 cam, 75mm MAS, BBK Adj. fuel Reg & gauge, BBK Shorty Headers, BBK H-pipe, March Pulleys, 2 Chamber Flowmasters, Kenny Brown 6 point Roll cage, Kenny Brown Panhard Bar, Powerslot Rotors, Eibach Sportline Springs, 180* Thermostat, 1/2 Plenum Spacer, MSD 6AL, MSD Master Blaster, MSD 8.8 Wires, 19# Racing Injectors, AFS 10.5" Cobra R's, Nitto 555's, Eclipse & JL Stereo System... I just sold My K&N, It looks funny with Stock Air Box & filter!!!