Water Pump Pulley - MMR or Steeda?

I am in the planning stages of installing an OPG and CS and came accross the water pump pulley upgrade. Couldn't find much on the forums and decided to ask.

I see a lot of information on MMR's water pump pulley, but not much on Steeda's water pump pulley. I am planning on a 3 bolt standard stock size. Is one better or more personal preference?

MMR: $69.99
13.7oz (30% over stock at 1lb 9.7oz)
Made from billet alloy

Steeda: $119.95
Claims 30% lighter than stock
Made from billet

Both appears to be vented designs and made in the USA

The Steeda unit is a great piece under the hood ... very good looking design!



Yes, our unit is manufactured in-house in Valdosta, GA with a nice finish from aerospace grade 6061 aluminum for strength and weight.

We have been at it for over 28+ years & stand behind our products 100% ... you won't be disappointed in the Steeda unit!

https://www.steeda.com/steeda-mustang-billet-3-bolt-water-pump-pulley-555-3367.html

Best Regards,

TJ

I have the MMR pulley. I wouldn't spend 120$ for a water pump pulley that won't even provide a measurable improvement . I bought one from MMR because I was already purchasing a damper through them and felt like wasting some money.

Is there any advantage to installing these?

NvrFinished said:

Is there any advantage to installing these?

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Probably not any noticeable difference. I also feel like wasting a little money since I'll have the whole front open for the opg install anyways.

NvrFinished said:

Is there any advantage to installing these?

Click to expand...

Less rotating mass makes the engine more efficient, thus making more power. Is this a measurable amount? I have no idea.

I have the mmr one. It's actually lighter than stock. Not worth $120 though.

We use/sell the mmr and steeda both Great looking pieces

beefcake said:

We use/sell the mmr. Great looking piece

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Any notes on the install of just this pulley?

its just 3 little bolts, pretty simple

I have the MMR one bought from Terry. It is a nice pulley and definitely weights less than the factory steel pulley. I didn't notice any seat of the pants difference but every little bit helps. I figured it would also run more true than the stock steel pulley. I have heard some say the steel pulley may have some run out in it.

I’m running the mmr pulley but all 5 of my idlers on the Whipple are the Steeda design. No reason I didn’t go with the Steeda wpp; I just already had the mmr one on.

Any cooling advantages with either of these?

I have the MMR with no issues