$1800 is more than enough to cover the install. I installed mine on my own and it was pretty easy. I sent ya a pm back.

 

just out of curiosity , how much does the 928 impeller spin the blower? 65K? I heard.

 

The 928 impeller is a better design and adds about 15% more boost across the rev range when compared to the stock vortech impeller. The bearings are the limiting factor on the speed. The 928 impeller is better balanced to spin towards 60+k rpm so long as the bearings can handle it. Someone on here post a link to a company that sold bearing upgrade kits for the V-2. I believe they made a ceramic bearing kit that could spin to 60+k.

 

I think.. www.superchargerrebuilds.com make the ceramic bearing kit

 

I'm currently @ 27K+ miles on my TN kit on the stock block, no major issues thus far. Tomorrow will be 2 years the kit has been on, and it's my daily driver UTEC tuned with 600cc DW injectors of course...

 

if these were the 2 only choices id pick TN ....

 

turbonetics would have my vote also

 

wonder if TN is carb legal in cali.

also, any one know what the stock vortech pulley number is? is the stock on that bad?

 

Thanks for all the great replies guys. I've kind of made my mind up which way I want to go.

I do fully agree that the powerband of a turbo is the best for all out performance. As well as upgradeability and being able to change boost levels on the fly with a boost controller. However I am placing a high priority on reliability and longetivity of the engine. The linear powerband of the supercharger does appeal to me and I think it would cause less stress on the engine than the huge low RPM torque a turbo brings.

I reviewed the install instructions for the Turbonetics kit and the Vortech and found that the turbo is a way more complicated install (no surprise to me.) I think I would rather not have all that extra heat the turbo creates under the hood of my daily driver, nor do I want to relocate components in the engine bay due to the space needed for the piping or spacing heat sensitive items like wires and hoses away from the high heat.

Question for the Vortech owners. How much difference does the 3.12 pulley make compared to the stock 3.33 and what other mods need to be made when switching to this smaller pulley?

 

read this (you prob already have), amazing post(s):

https://my350z.com/forum/forced-indu...questions.html

 

Nope...believe me, if there was such a thing as a CARB legal turbo setup in CA, I would be on it (although with all the mods I added to my Vortech, I'm technically not CARB legal either)...

As for the stock pulleys (its different depending on which motor you have):
non-revup: 3.33
revup: 3.12

You will defnitely get more power with the stock pulleys, probably about 350~360 whp @ about 8 psi boost stock...but if you want more power(as we always seem to) you will want to upgrade your pulley to get to the boost faster and increase your whp, at the cost of reliability and upgrades (new pulley, injectors, better tune, etc)

I realize I'm playing with fire with my 2.87 setup on a stock block engine...

 

i just switched from the 3.33 pulley to the 3.12 pulley. i upgraded to rc 440cc injectors, walboro 255 fuel pump, and retuned the SS box.

more info on swapping pulleys here:

https://my350z.com/forum/forced-indu...12-pulley.html

my car on a dyno here:

https://my350z.com/forum/forced-indu...tang-dyno.html

 

turbonetics kit will throw cel faster than u can blink normally and nope not carb leagal....

as far as 3.33 to 3.12 i switched to the 3.12 stayed stock injectors for the moment and had the ss box retuned and made 394whp safely..its alot of fun now and quite a bit more than the 3.33

imo do it right the first time though and get 600cc injectors a walbro and a utec and a vortech tuner kit....its gonna cost me more now to go back and retune with the bigger injectors and to swap out the inline pump for a walbro in tank and to put the injectors in and everything...i am safe right now but i am gonna go with the 2.87 eventually and id rather do the injectors for safety anyway...

vortech tuner kit, utec, walbro 255, DW 600cc, 3.12 pulley or 2.87,iridium 1 step colder plugs, tune

 

I heard Turbonetics is in the making of a Carb legal kit. That's the main reason they discontinued the Kit. I have a TN kit no problems besides AC line which is getting fixed in the next few weeks when it warms up. Another flaw is the kit power gets maxed out a little over the 400 whp mark. Stock block the TN is great. It's all in the Tune.

 

i got off the phone with (i will not put the name of the shop, but a very well known shop here on the forum in the west coast) and they were actually trying to talk me out of vortech. they said, of course, that they will install whatever i like, but they said that they got something wrong with vortech setup about 70% of the time. so 2 out of 3 guys they install the vortech will eventually have a problem.

they said if i'm going vortech, try v3 and not v2. reason being if the blower blows, then i'm contaminating the same oil pan supplying oil to the rest of the engine, therefore taking a chance with that.

they said that hks is much safer, and had any no real issues with it. the catch will be that it is more expensive and prob less hp...

all i want (i know i will change this later) is ~100 hp the safest way possible. this will be my main commuter to work and am trying to get the cheapest, but also the safest 100hp (or around that, and yes i know cheapest and safest probably don't go together.) so safest, then cheapest possible set up, and it seems that hks might be it, at least according to the guru's at the shop.

any opinion on this?

 

if they mentioned HKS... im guessing it was GTM?

 

first off id have to assume u just called a hks dealer(GTM).. hence trying to stear u away from vortech and something they can sell u

vortech had a batch of bad blowers, it is not as common as some may think to get a blower and have bearing failure, and imo is not gonna harm the motor in any way possible if u have bearing failure in the charger...

the v3 kit is now offered by vortech so if ur gonna get a new kit then why wouldn't u get the v3, easier to install and its self lubricated, so that theory of contaminating the engine oil is out the window there...I truly beleive the v2 blower bearing problems are over with though and that it was just at that time they had the bad batch or batches, or from people going with too small of a pulley and overspinning them, i have a v2 because i bought it new from a vendor who had it left over from someone not coming through on a purchase, my kit was actually purchased in 04 but not used till i put it on not long ago and seems strong, my v2 is showing no signs of problems with over 1,000 miles on it now...knock on wood

 

I think if I go vortech, I'll go V3, although I've heard it might be a pain in the a$$ to change the oil on those due to lack of space. something about having to take the blower out, which is just crazy to do each time you wanna change the oil....

also according to the shop, they actually had a guy w/ 3 blown chargers and now a blown engine

not sure how HKS is w/ their oil change..

The base HKS goes for about 5.5k, about the same as V3/V2, but about half the HP gain. Man, I'm getting cold feet about Vortech now, thought I was pretty set on their set up...

 

Haha...I was going to say Stillen was the shop that tried to steer you away from the Vortech because they tried to do the same thing to me so I could get the Stillen Supercharger instead...but since you mentioned the HKS Supercharger, I would venture that it was probably GTM?

Not that it matters; I respect GTM and will probably get a built engine from them when mine goes...

Anyway, it really dosen't matter which shop said this (unless it's RA); I am biased as a Vortech owner, but I do realize that the full kit (with the FMU, Unichip/SS Box, etc) is probably not optimal in its initial form, and will you will need to make a lot of changes to get the best setup out of it (ie bigger injectors, Walbro, better tune/EM, smaller pulley, etc)...so out of the box it may not be the best...that being said, if you get the tuner kit and get all the other parts separately that I mentioned earlier, you will get a very good reliable daily driver...i daily drive my car and no problems...

I did notice that some shops didn't want to build my tuner setup with the injectors, walbro etc since it deviated from the basic setup, which is why I ended up installing it myself...

But if you want peace of mind, I don't see any problem with HKS for SC...just have $$...and the rortex blowers that come with the HKS SC are quieter than the rocks-in-a-can vortech blowers...


BTW, I have a V2 blower

 

i wouldn't let a oil change hold u up, and i doubt the blower needs to be pulled, but maybe.....( i wouldn't think u would have to do something like that)

for what u are looking to get a complete vortech kit will suit ur needs, theres no doubt...u said only 100 hp is what u are looking for...im on stock injectors still with complete vortech kit 3.12 pulley is the only change and made 394whp with just exhaust for my other mods basically...much more than a hks is gonna get u for the same price...don't worry so much these forums are filled with things and problems people have had, doesn't mean its gonna be u....even a stock vortech kit out of the box will perform for what u are looking to get