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- Car
- car
Since we share the same exact motor (minus the upper oil pan on our AWDs) as the 350Z and G35s we do have some options for the crank pulley and aux pullies.
Lightweight crank pulley can relieve some of the drag on the main crank which is what turns the rods and pistons of the motor.
Underdriving your auxiliary pullies can relieve some of the drag on the main crank which is what turns the rods and piston of the motor.
Harmonic crank pullies theoretically balance and absorb the vibrations of the engine, this is an old world mod.
KJR Performance only comes in the standard lightweight crank pulley. I think the CNR might have come stock diameter and lightened but that became a huge fiasco.
Link to manufacturer site. http://www.kjrperformance.com/products.htm
Install pdf. http://www.kjrperformance.com/docs/KJR 350Z Crank Pulley Install.pdf
Unorthodox Racing has been around for a while and has a few options for the VQ35. They do show a standard sized main crank pulley if you search under FX35 vs 350z.
Link to manufacturer site http://www.unorthodoxracing.com/
The UR pullies would be the best bet for underdriving or standard sizing the pullies. They have been around and are built with the correct steel sleeve to not damage the main seal.
Link to Grubbs Performance for the pullies. http://www.grubbsperformance.com/c/G35CoupePulleys/G35CoupePulleys.html
Link to Stillen for the pullies. http://www.stillen.com/browse.asp?c=PE&s=PULLEY
Link to Everythinginfiniti for the pullies http://www.trademotion.com/partloca...rtInfo&PartID=437135&siteid=55&catalogid=3323
Link to mynismo for the pullies http://mynismo.com/products/?id=4366
There are 2 harmonic style crank pullies that I know of for the VQ35.
Fluidampr http://www.fluidampr.com/NISSAN.htm
ATI Performance http://www.atiperformanceproducts.com/products/dampers/charts/damnissan.htm
I have not seen the ATI in person or compared it to a stock crank pulley. I learned this from the Vortech supercharged guys and did compare the Fluidampr to a stock pulley. The accessory portion of the Fluidampr is actually larger than stock which in turn will overdrive the auxiliary pullies. This is not a big deal except if you're using the accessory side of the crank to drive a supercharger. You will build more boost since the supercharger will be turned at a higher rpm with each revolution.
I know of 1 Stillen that blew the motor soon after putting on the Fluidampr so beware if you're pulley boosted and using a pulley that is not stock or smaller.
Summit Racing link for Fluidampr http://store.summitracing.com/partd...=FLU-640902&N=700+4294907666+115&autoview=sku
Summit Racing link for ATI http://store.summitracing.com/partd...&N=700+4294839044+4294907666+115&autoview=sku
Wheh I had the Stillen supercharger the KJR felt great. It felt like the supercharger built boost faster and rev a little more freely. When we took the pulley off there were signs that is was wearing on the oil seal so we did not put it back on during the motor rebuild.
We opted to try the Fluidampr. Everything has been running good, no oil leaks or anything weird to report.
Lightweight crank pulley can relieve some of the drag on the main crank which is what turns the rods and pistons of the motor.
Underdriving your auxiliary pullies can relieve some of the drag on the main crank which is what turns the rods and piston of the motor.
Harmonic crank pullies theoretically balance and absorb the vibrations of the engine, this is an old world mod.
KJR Performance only comes in the standard lightweight crank pulley. I think the CNR might have come stock diameter and lightened but that became a huge fiasco.
Link to manufacturer site. http://www.kjrperformance.com/products.htm
Install pdf. http://www.kjrperformance.com/docs/KJR 350Z Crank Pulley Install.pdf
Unorthodox Racing has been around for a while and has a few options for the VQ35. They do show a standard sized main crank pulley if you search under FX35 vs 350z.
Link to manufacturer site http://www.unorthodoxracing.com/
The UR pullies would be the best bet for underdriving or standard sizing the pullies. They have been around and are built with the correct steel sleeve to not damage the main seal.
Link to Grubbs Performance for the pullies. http://www.grubbsperformance.com/c/G35CoupePulleys/G35CoupePulleys.html
Link to Stillen for the pullies. http://www.stillen.com/browse.asp?c=PE&s=PULLEY
Link to Everythinginfiniti for the pullies http://www.trademotion.com/partloca...rtInfo&PartID=437135&siteid=55&catalogid=3323
Link to mynismo for the pullies http://mynismo.com/products/?id=4366
There are 2 harmonic style crank pullies that I know of for the VQ35.
Fluidampr http://www.fluidampr.com/NISSAN.htm
ATI Performance http://www.atiperformanceproducts.com/products/dampers/charts/damnissan.htm
I have not seen the ATI in person or compared it to a stock crank pulley. I learned this from the Vortech supercharged guys and did compare the Fluidampr to a stock pulley. The accessory portion of the Fluidampr is actually larger than stock which in turn will overdrive the auxiliary pullies. This is not a big deal except if you're using the accessory side of the crank to drive a supercharger. You will build more boost since the supercharger will be turned at a higher rpm with each revolution.
I know of 1 Stillen that blew the motor soon after putting on the Fluidampr so beware if you're pulley boosted and using a pulley that is not stock or smaller.
Summit Racing link for Fluidampr http://store.summitracing.com/partd...=FLU-640902&N=700+4294907666+115&autoview=sku
Summit Racing link for ATI http://store.summitracing.com/partd...&N=700+4294839044+4294907666+115&autoview=sku
Wheh I had the Stillen supercharger the KJR felt great. It felt like the supercharger built boost faster and rev a little more freely. When we took the pulley off there were signs that is was wearing on the oil seal so we did not put it back on during the motor rebuild.
We opted to try the Fluidampr. Everything has been running good, no oil leaks or anything weird to report.
