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Discussion Starter #21
The damper needs more for comfort. It does not affect the life of the engine. Earlier, on millions of cars never had the dampers, nevertheless they worked.
 

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I just ordered one so I'll report back when it comes in. Definitely looking forward to it and testing a theory as to why I keep blowing through serpentine belts with my RRE UDP.
 

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Discussion Starter #23
I was told that it will take 14 to 20 days. Let's hope that you will get faster. Expect a report.
 

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Ok so I got the pulley in yesterday, got it installed this morning and then went on a nice couple hundred mile drive to break things in and get initial impressions.

First off, packaging is really nice and held up well on it's trans-continent trip. I think mine may have been tested prior to shipment because there was some grease on it, but no big deal.



The metal feels very similar to the OEM pulley metal which was nice and the v belt grooves feel grippier than the RRE UDP. Dimension wise it is bang on to the stock pulley like Stayer claimed.



I also weighed all three pullies so we can have comparison data. Weight difference between Stayer's pulley and the RRE UDP is 10.4 ounces.

Stock Pulley - 3 lbs 14.5 oz


RRE UDP - 9.6 oz


Stayer Pulley - 1 lb 3.8 oz


Size comparison of the RRE DUP and Stayer Pulley


Installation was incredibly easy, just like it would be for the RRE UDP. I do quite like using the stock belt length again as I don't have to remember the Gates part number anymore.



Initial impressions - I really like it. It is very well made and the only quibble I have with it is that it is missing the timing mark from it that RRE included on theirs. This could potentially be an issue when I take my car in to have the valves adjusted as that is how they determine TDC.

Driving wise it's super smooth. I may have lost 1 or 2 HP compared to the RRE UDP and it doesn't seem to rev quite as quickly, but it is still way better than the stock pulley. Compared to the RRE it makes the engine feel a little more refined, and steering feels better as well at lower speeds which I think is a direct response to having the PS pump pulley rotating at the correct speed again. All in all, I'm very happy with it and can't wait to get more time and miles on it so I can develop a better opinion of it.
 

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Discussion Starter #25
Very happy for you. I was worried a little for international shipping. But all is well.

Can offer you reflash the ECU. You are 100% will reveal the potential of the engine. For this you need an openport 2 cable. And e-mail. If you find it difficult to follow the instructions, we can do it remotely via TeamViewer.
 

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Good Day! I'm new to this page and my eclipse is 100% stock. I wanna start modding and your pulley looks like a good idea. How do I buy this?
 

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The RRE pulley makes more power _because_ it is smaller. That is the main benefit. It is not the problem. Stock parts are made with the assumption that you will not be driving so much with high spirits and mostly at lower RPMs. Yes our pulley spins the various accessories slower. That is how it makes more power and also how it adds to the longer life of the various accessories. I have yet to hear anyone complain about increased power steering effort, low battery voltage, A/C problems or cooling issues. I did not invent underdrive pulleys, they have been around for decades.

My pulley is proven for over 10 years. In my country Stayer we do not tear down another company's part to make our parts look better. I suggest that you prove your product standing on its own merits.

Mike Welch
Road Race Engineering
 

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Discussion Starter #29
Mike Welch excuse me. I have no purpose to sling mud at someone. I didn't mean specifically the pulley of your brand (RRE). If the pulley has a reduced diameter, no matter what the firm is made. If you did not write about the problems, it does not mean that they are not. Reduced pulley is not properly working units.
Stayer
 

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TireSlayer
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The RRE pulley makes more power _because_ it is smaller. That is the main benefit. It is not the problem. Stock parts are made with the assumption that you will not be driving so much with high spirits and mostly at lower RPMs. Yes our pulley spins the various accessories slower. That is how it makes more power and also how it adds to the longer life of the various accessories. I have yet to hear anyone complain about increased power steering effort, low battery voltage, A/C problems or cooling issues. I did not invent underdrive pulleys, they have been around for decades.

My pulley is proven for over 10 years. In my country Stayer we do not tear down another company's part to make our parts look better. I suggest that you prove your product standing on its own merits.

Mike Welch
Road Race Engineering
Woahh so I don't know if you meant to do this Mike, but this came across as pretty aggressive. Stayer is providing an alternative to your pulley, and that's exactly what everyone else in America does. Can we try to not be rude to each other? We all love cars and are part of the 4g community, lets appreciate each other's products =)
 

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Haydu: He says my pulley is all wrong. Yet we have been making people happy with more power for over 10 years with it. The exact reason it makes more power available is the same feature that he says is wrong about it. The smaller diameter.

His pulley does not increase power. So where is the value in that? Yeah it might look cute. I would be fine with him making his no power pulley and selling it to anyone that likes that is he didnt go around saying that my pulley sucks and is wrong. _That_ is aggressive and not cool at all.

Mike W
 

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Mike Welch excuse me. I have no purpose to sling mud at someone. I didn't mean specifically the pulley of your brand (RRE).
Stayer
Ummm... yeah you did:

^^^ the RRE pulley has a reduced size. It's not very good.
Sell your pulley standing on its own merits. Here in the west the RRE Pulleys work just fine. You have only speculation to offer. You offer no proof to any of your claims.

Mike W
 

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Basically Stock
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Math wise:

The lower weight of the Stayer pulley should allow the engine to rev up quicker, but not actually make more power due to the equilibrium of the inertia reached at the rev limit

The RRE one, being a smaller size, is turning the accessories at a slower speed which requires less energy as you now are no longer using energy to bring the mass of all the pulleys to the same speed as stock (reduced inertia) as well as by being lighter it in itself reduces the inertia of the main drive pulley. You also lower the friction load on each of the pulleys by turning them slower (fewer passes over a friction surface over time)

The Stayer one will not increase power, but will reduce load. Less load, more power to wheels
The RRE one should increase usable power due to less resistance. Less load by weight and rotation, more power at crank as well as wheels

I like how they both work by reducing the load on the engine instead of making the engine more powerful. Very safe upgrade whichever path you choose (no issues with my RRE pulley)
 

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There is nothing wrong per se with having an underdrive pulley as long as you take the time to change the pulleys of the other accessories for ones with a larger diameter. The RRE is one of the first that I've seen that does not and only comes with the crank pulley. By only replacing the crankshaft pulley you are are reducing the speed at which the alternator, water pump and AC are turning which increases the load on them. To counteract this, and which what most underdrive kits do, is to provide larger diameter pulleys for those accessories to speed them back up. Doing this allows you to reduce the weight on the crankshaft and parasitic drag while maintaining the same rotational relationship that the OEM pulley had with the other pulleys.
 

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There is nothing wrong per se with having an underdrive pulley as long as you take the time to change the pulleys of the other accessories for ones with a larger diameter.
Takes away the whole point of the underdrive. But I have seen it on cars both ways. The ones with multiple pulleys usually keep stock size and just reduce weight (eg, for an 09 civic)


I still pull 14v off my altenator at 600rpm idle with the RRE, so I'd say it's fine.
 

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Discussion Starter #36
Yesterday I was in Moscow on a chassis dynamometer. I felt a camshaft kit. And at the same time experienced your lightweight pulley. I will show charts later, I just arrived. My pulley gives 2 HP

Mike W do not get angry. Let's consider variants of cooperation? For example. You make parts for many brands of cars. I can provide a unique firmware for any car. Mitsubishi all, Nissan all, all Toyota, all Honda. And many, many others.
Some mods require intervention into the ECU.
If you are interested, write in PM. Discuss.
 
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