Under drive pulleys?
Safety Car
Joined: Dec 2008
Posts: 3,588
Likes: 10
From: North New Jersey
Im curious to hear from others with actual experience with them (install and running with them)!
Thread Starter
Melting Slicks
Joined: Jul 2006
Posts: 2,151
Likes: 0
From: Strongsville Ohio
I was reading summits website and the description says better gas milage and more horse power by slowing down the components.
I want to get all the goodies I can while everything is gone and out of the engine area..So no one else has imput
I want to get all the goodies I can while everything is gone and out of the engine area..So no one else has imput
Max G’s
Joined: Nov 2008
Posts: 2,751
Likes: 78
From: Monroe OH
NCM Sinkhole Donor
Worth it to get them if you are looking for better performance. The pullies reduce the amount of power it takes to spin the components, therefore, there is more power available for acceleration.
Le Mans Master
Joined: Mar 2004
Posts: 5,107
Likes: 171
From: Dublin CA
They are worth the $$ spent....if you are looking for additional speed at the track. Purchase the THREE SET series that includes the alternator pulley. When I changed over to the March under-drive pulleys which included the alternator pulley, I actually gained alternator output. I have never had any problems with the output dropping at idle or low RPM's. If you get the two set series, it will slow down the alternator and you may have problems at lower RPM.
You will not gain HP or MPG that will be measurable. They do allow the engine to spin up faster.
You will not gain HP or MPG that will be measurable. They do allow the engine to spin up faster.
Le Mans Master
Joined: May 2007
Posts: 8,448
Likes: 27
From: Valparaiso
Guys , a couple of months ago i was really thinking ..good or bad idea ?
i went and decided on the 4445 March Pulley set, this are called "Power and Amp Series"
i have an Automatic 87, im not sure if the power is worth or can be felt by the buttometer because i upgrade a lot of stuff at the same time but the engine does rev a lot faster
and the looks is KILLER ! Being a '94 Derek's car won't work with the 4445's
but make sure if you get this or another brand to include the alternator pulley.
I have zero problems and im very very happy with them !
i went and decided on the 4445 March Pulley set, this are called "Power and Amp Series"
i have an Automatic 87, im not sure if the power is worth or can be felt by the buttometer because i upgrade a lot of stuff at the same time but the engine does rev a lot faster
and the looks is KILLER ! Being a '94 Derek's car won't work with the 4445's
but make sure if you get this or another brand to include the alternator pulley.
I have zero problems and im very very happy with them !
Melting Slicks
Joined: Sep 2010
Posts: 2,422
Likes: 202
Calderone
is 100% correct the Power amp series works great
the weight savings is great.. way less rotational mass!!! looks awesome!!!
I have the Complete set including power steering!!! in Awesome shape only months old from MY 89 TA (Sorry) But I thought someone will like them????
is 100% correct the Power amp series works great
the weight savings is great.. way less rotational mass!!! looks awesome!!!
I have the Complete set including power steering!!! in Awesome shape only months old from MY 89 TA (Sorry) But I thought someone will like them????
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Le Mans Master
Joined: May 2007
Posts: 8,448
Likes: 27
From: Valparaiso
Calderone
is 100% correct the Power amp series works great
the weight savings is great.. way less rotational mass!!! looks awesome!!!
I have the Complete set including power steering!!! in Awesome shape only months old from MY 89 TA (Sorry) But I thought someone will like them????
is 100% correct the Power amp series works great
the weight savings is great.. way less rotational mass!!! looks awesome!!!
I have the Complete set including power steering!!! in Awesome shape only months old from MY 89 TA (Sorry) But I thought someone will like them????
Race Director
Joined: Sep 2003
Posts: 16,837
Likes: 338
From: Database Error Indiana
Guys , a couple of months ago i was really thinking ..good or bad idea ?
i went and decided on the 4445 March Pulley set, this are called "Power and Amp Series"
i have an Automatic 87, im not sure if the power is worth or can be felt by the buttometer because i upgrade a lot of stuff at the same time but the engine does rev a lot faster
and the looks is KILLER ! Being a '94 Derek's car won't work with the 4445's
but make sure if you get this or another brand to include the alternator pulley.
I have zero problems and im very very happy with them !
i went and decided on the 4445 March Pulley set, this are called "Power and Amp Series"
i have an Automatic 87, im not sure if the power is worth or can be felt by the buttometer because i upgrade a lot of stuff at the same time but the engine does rev a lot faster
and the looks is KILLER ! Being a '94 Derek's car won't work with the 4445's
but make sure if you get this or another brand to include the alternator pulley.
I have zero problems and im very very happy with them !
Melting Slicks
Joined: Sep 2010
Posts: 2,422
Likes: 202
The power steering Pulley is the best looking!!!! it looks similar to a 94-96 LT1 Pulley with 3
oblong machined slots>>> if you would like to see pic of mine I'll post them is a few
oblong machined slots>>> if you would like to see pic of mine I'll post them is a few
Last edited by THE 383 admiral; Jun 27, 2011 at 12:19 PM.
Thread Starter
Melting Slicks
Joined: Jul 2006
Posts: 2,151
Likes: 0
From: Strongsville Ohio
well you guys made my mind up on the pullies. I am going to get em..So all of you think I should get all of them or just a couple? They are not cheap. If they really only give looks, speed up the rpm raising and chage better at idle is it worth it? I don't know if $ 300 plus is worth it
Le Mans Master
Joined: Nov 2009
Posts: 6,882
Likes: 234
From: Bangkok, Thailand
I have a set of the March pulleys on my 84. I didn't do a before and after power test, but they say to figure about 13 hp at the wheels. No problems at all to report.
When driving at night with my 80w/100 headlights on, the heater blowing and the brake lights on, I will occasionally get a low voltage warning light HOWEVER, I think I still have the original 1984 alternator on the car with 130K+ miles on it. I'm sure a good alternator would have no problem keeping up with the system.
The March pulleys were $89, and a new (shorter) serpentine belt was another $40. Great deal for the advantages.
When driving at night with my 80w/100 headlights on, the heater blowing and the brake lights on, I will occasionally get a low voltage warning light HOWEVER, I think I still have the original 1984 alternator on the car with 130K+ miles on it. I'm sure a good alternator would have no problem keeping up with the system.
The March pulleys were $89, and a new (shorter) serpentine belt was another $40. Great deal for the advantages.
