VQ37VHR Harmonic Balance
#16
Get the stock diameter pulley. It shaves about 7.5lbs off of the stock crank pulley, but keeps the diameter the same so your accessories are not altered or under-driven. It does not throw off the balancing of our engines. Do a search on here for either stillen pulley or unorthodox pulley, they are actually the same. This topic has been debated, explained, and dynoed before.
#18
Ah.. gotcha! Makes sense..
Yes there is a standard sized pulley mirroring the factory cast steel pulley, and we also offer an underdrive pulley to also slightly slow the accessories to reclaim HP as well, and requires a shorter belt.
Yes there is a standard sized pulley mirroring the factory cast steel pulley, and we also offer an underdrive pulley to also slightly slow the accessories to reclaim HP as well, and requires a shorter belt.
#20
I haven't heard of a customer even with a built stereo system having any issues.. it's not like the older cars where you get dimming lights (which would happen with built stereos).. but if you're looking to supercharge or have a killer sound system, our advice would be to definitely go with the standard sized pulley..
If you're not, you can take advantage of the additional gains with an underdrive pulley.. A/C also works just fine, we're not talking about a huge percentage of underdriving..
If you're not, you can take advantage of the additional gains with an underdrive pulley.. A/C also works just fine, we're not talking about a huge percentage of underdriving..
#22
It's a good upgrade, and the install doesn't take that long, with the proper tools and setup to lock that pulley in place, and if you have the super long breaker bar / wrench combo. There is a lot of force being applied to secure that nut. Definitely take a look at the instructions so you know what's involved. I believe I saw a DIY thread around here or on the 370Z site..
#23
Registered User
iTrader: (8)
I'm running the Stillen pulley now (stock diameter) and IMO, the engine felt as though it revs quicker. No issues to report and am happy with the product. I ran their underdrive on my last car (Maxima) and I felt as though the A/C didn't pump as hard...makes sense b/c it's being under driven. Also, since you have to run a shorter belt with the underdrive, its more of a headache when replacing belts as alot of times the dealer may not have it readily on hand. Eitherway, happy with the product.
In regards to DIY- good luck. Both times I've had the dealer do it and they said it was a PITA.
In regards to DIY- good luck. Both times I've had the dealer do it and they said it was a PITA.
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