Guaging interest in lightweight crank pulley for 1.8

andy

I have made plans to have some lightweight crank pulleys manufactured for the 1.8 litre engine found in the Nissan Sentra 1.8 as no company seems to make them. They are not underdrive pulleys (meaning they retain stock pulley size). I will sell them for 110$ CAN + shipping (maybe even less depending on how much demand there will be). If you are interested, please reply in this thread. Thank you!

I'll get back with the shipping/duty fees soon.

.cheese biscuits

.www.unorthodoxracing.com has made them for years, please support them as they've been some of the only aftermarket support the QG has gotten.

.The only pulleys listed on that site are underdrive.

.Two questions:

1. Who's gonna make them?
2. Newb question - What's teh difference between Underdrive and Stock diameter?  I know Underdrive is smaller but what are benefits/consequences of each?

.
Originally Posted by Sr20 RRI have made plans to have some lightweight crank pulleys manufactured for the 1.8 litre engine found in the Nissan Sentra 1.8 as no company seems to make them. They are not underdrive pulleys (meaning they retain stock pulley size). I will sell them for 110$ CAN + shipping (maybe even less depending on how much demand there will be). If you are interested, please reply in this thread. Thank you!
I'll get back with the shipping/duty fees soon.

ure proably using a cnc lathe? explain to me this stock diameter thingy and yeah id be game since the UR pulley sells for a ridiculous $250 and doesnt even give you 1whp....

oh yeah pics of the machine!!!

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Originally Posted by 1SentraNotEnuffoh yeah pics of the machine!!!

As I said before.... Picture whore.  

Price sounds right to me... now, just have a good product and you just might be in business.

.I have 0 interest.

.OK, seems like I didn't post a lot of details... here we go :

The reason why I am not going for an underdriven pulley is because most people upgrade their sound system and by reducing the diameter, you might lose some power for your accessories. Also, the reduced diameter accounts for only 10-15% of all gains obtained from using the lightweight pulley which seems negligeable compared to having the opportunity of upgrading your sound system.

The pulleys are going to be produced on a CNC machine with lightweight 6160-T6 aluminium (same as UR) and will only be available in ''natural'' color (brushed aluminium from machining). The tolerances for machining are set à 1/100000 of an inch. The plans were designed with Catia and tests were conducted in simulation to make sure the pulley wouldn't explose. The design does ressemble that of the UR site but I decided to retain the stock diameter.

By the way, I'm sorry if there is mispelling, my first language is french.

.vraimont?

.dude just knock off the UR wtf.  or make all the pulleys lightweight and do the crank pulley as an underdrive.  ill test all of the pulleys and do an install write up, dyno before/after lolz.

.
Originally Posted by Sr20 RROK, seems like I didn't post a lot of details... here we go :
The reason why I am not going for an underdriven pulley is because most people upgrade their sound system and by reducing the diameter, you might lose some power for your accessories. Also, the reduced diameter accounts for only 10-15% of all gains obtained from using the lightweight pulley which seems negligeable compared to having the opportunity of upgrading your sound system.
The pulleys are going to be produced on a CNC machine with lightweight 6160-T6 aluminium (same as UR) and will only be available in ''natural'' color (brushed aluminium from machining). The tolerances for machining are set à 1/100000 of an inch. The plans were designed with Catia and tests were conducted in simulation to make sure the pulley wouldn't explose. The design does ressemble that of the UR site but I decided to retain the stock diameter.
By the way, I'm sorry if there is mispelling, my first language is french.

what machine are you using? fanuc miyano swiss?

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Originally Posted by 1SentraNotEnuffwhat machine are you using? fanuc miyano swiss?

I'm not the one machining them...I don't remember the machines they are using but I'll try and find it out for you... you seem to have a fetish of some sort on those CNC machines don't you??  

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Originally Posted by 1SentraNotEnuffill test all of the pulleys and do an install write up, dyno before/after lolz.

I have someone ready to do that here so it will be done as soon as there is enough demand... I don't wanna go ahead and order 20 pulleys and be stuck with them...

.By the way, I should also have pulleys for the QR25DE and SR20DE soon. In fact the QR25DE plans are already done. I just need to have enough demand.