I have the kit sitting in a BOX! lol

I'll let it go for $230 shipped! This includes the underdrive pulley and Belt.

 

whats going on here guys??? yeaa im bumpin this old thread, because i decided imma keep my car and still am thinking about the underdrive stillen pulley.


anyone actually install it yet?

 

I can sell you my new kit. I don't have any plans of installing it.

PM me a legit offer! No low ballin.

 

stillen underdrive crank pulley?

jus the crank or everything?

 

NIB pulley & belt. Install & go..

 

i still dont understand..... Y does the underdrive mess up the motor???

i had a underdrive on my rev up and it worked perfectly!

 

its only for some engines. Old American V8's had a Harmonic Ba lancer as a crank pulley, It basically absorbs the engine's Harmonic Resonance. by taking some of the load. same thing with the older Inline 6 Engines such as the Nissan RB and Toyota J series. the Crank Pulley also served as a Harmonic Balancer. it would take load from the bearings that's the understanding / theory behind the Harmonic Blancer.

Moving on to Modern engines. or the Smaller V6. We have been removing them from the VG30's and SR20's for years now. taking off heavy 17ish lb crank pulleys and installing light weight 3lb aluminum Under drive pulleys, without them causing any engines to fail. same thing with SR's the VQ already comes with a very light pulley so a 3lb savings on the pulley wont really show much effect and is not worth the time and effort IMO. I would put that money towards an Osiris tune.

-Juan

 

so the harmonic balance of the crank will be thrown off... interesting.

y didnt this happen to my rev up tho? its techically the same motor (almost).

 

lol i think i explained it wrong or you miss understood. Basically what i mean to say is that putting a light weight pulley on a newer nissan V6 engine won't throw the harmonics of the engine off. it wont even matter, the crankshaft is counter balanced from factory, and everything is very carefully machined and assembled. at the same time, the light weight pulley is more of a dress up item. you won't feel much / any difference from it.

 

what about an underdrive pulley?

 

that I have no experience with the VQHR, but from what other threads have said and show, there isn't any gains, I mean even DE's don't have any gains, the HR pulley is even lighter so I doubt we will get any gains from it check this thread out

http://www.g35driver.com/forums/revi...ht-pulley.html

 

the gain is like 1 hp... im not going for that. the underdrive makes the car rev a lil fast. thats what im going for. only reason

 

hay guys i have a 2008 350z whit nismo intakes and the HKS Exhaust and to day im giting my nismo headers and stillen crank pulley im just oputing it out there but my z is just the 350Z enthusiast i plan one puting the pulley on my Z to day i hop i well fill the power defrints but i do plan on geting a uprev tune for my car after and i well post up a review on it if yall would like me to

 

Dear god can I have your English teachers name address so I can smack them?

Practically impossible to understand, at first I thought it was autocorrect but not one period or full sentence in that whole paragraph.

 

Any results from the stillen pulley? I gotta change mine and have been thinking about stillen but reading the above posts got me confused.

 

I installed the Z1 lightweight and did the idler removal in 2-3 hours, with breaks. Gained 7 less pounds in the front of my car, lol. Do I regret it? No....

 

I've had Unorthodox crank pulley for about 10K miles now. Revs noticeably faster. I'm pretty sure no power gains. Would do again.