Before you light up the flame throwers....I searched for an answer but couldnt find what I was looking for...

I am thinking about going FI but am on a limited budget. I'm probably going to have to go with a SC and I was just wondering how their reliability compares with a turbo kit. If I had to guess...I would say they tend to require less maintenance...but I could be completely wrong.

One more quick question...

Althought it might be "advisable"...is it required that you get a new exhaust with a SC kit?

Thanks for your help guys...I do appreciate it.

 

 

as far as the supercharger versus turbo debate. I won't comment since I don't personally own either.

but from what I read and searched:
exhaust not required...but recommended.
reliability is factored by how much boost/pulley, fuel management and tune.
i've read more oil issues/blower problems with the superchargers compared to turbo

 

A large shot of N20- is by far more reliable than either a Turbo or S/C. At least 150 shot with no tuning is cool

 

I have sprayed,blown and now boosted my Z And I agree with Alberto about nitrous. From experience with SC & turbo the turbo has given me less problems,do not have to check my belts all the time and don't have to watch my oil as much. And no noise like a SC. Glad I went Turbo...

 

hahaha,



anything can be safe and reliable if installed correctly....

 

Eternal September...

 

Superchargers put less stress on the connecting rods which is the weakness of the VQ. My biggest issue has been figuring out the right size belt to use with my supercharger, now that I have that figured out there have been no issues in 4000 miles of driving. Also there is no chance for boost spike with a supercharger. I do feel that a turbo is more fun to drive and the torque will make the car feel more powerful though. I can say driving around town a turbo would be nice for short bursts of acceleration. I notice that I have to really take my car to redline to get the power out of it with a supercharger. I do like top end power though and it sounds like a jet and turns lots of heads Bottom line though the most important factor is going to be the tune and a proper install.

 

https://my350z.com/forum/forced-indu...ion-noobs.html

 

limited budget I would go with sc because if something breaks(and it won't be the motor most likey with a sc)you can run the motor without the blower connected and take it out in a couple hours. but with belts breaking, slipping, and the blower failures with vortechs its gonna be more maintance. the procharger has its own oil resvouir that's one more maintance iteam

 

You must be rocking the s15 kit with the 25mm BB turbo. A spooled turbo is rather loud sir.

 

I have both supercharger and quad turbos installed. It became more safe when I ran 3 standalone ECU instead of 6 piggy backs.

 

I always thought superchargers were better for low end torque and have no lag issues...?

 

You are talking about root type SC like the Stillen... I thought you did your research?

 

Low end power is weak but there is no lag on the weak boost it builds if that makes sense. The Vortech makes all of its power on the high end. If you downshift on the highway and punch it though it pulls hard without any lag. Feels like a V8 then. Don't get me wrong though, I still eat C-5 vetts all day long, its not that weak!

 

Yes C5s taste good, lol

 

C6s aren't so bad either, just a little tougher.

 

What peak psi are you making?

 

i feel with a centrifical supercharger driving style matters alot on how quick it is and feels. with a turbo you can be so called "lazy" when you drive. the engine can be lugged at 2000 to 2500 rpm and then all it takes is the gas mashed to the floor and shortly after a mad rush of power and tourqe will follow suite. if a centrifical s/c car is driven in the same manner it will feel gutless untill the rpm band runs into the 4500 to redline range. i have run against a few twin turbo charged z's and g's that are running in the 400 to 500 whp range. i myself am running 430 whp ( GTM dynojet ) with the vortech . some people know here i am running a odd ball setup. i usually cruise at 3500 rpm when driving . by 4000 rpm i am making 6.5 lbs of boost and at 6600 i am hitting 14 lbs. and remember with moderate throttle application the bpv is full open so at 4000 rpm and light throttle there is no boost being made. but when the throttle is mashed for me it is a instant 7 lbs of boost and building. from a light to light run i am 1 to 2 car lengths ahead of the turboed car with myself performing a 3500 rpm lauch slipping the clutch out to get needed traction. i will say on a roll on run basis the s/c car is no match for the turboed car. what does help me at times to keep up with the turboed car in a roll on run will be to quickly side step the clutch to up my rpm and get into the high rpm/boost range quicker. in a nut shell rpm is your freind with a cetrifical s/c and if you drive it very aggresivley it will perform very well. i have taken local z club members for rides and they could not belive how a supercharger could feel or perform but they would also comment how i drove my z like it was stolen. just my two cents.

 

+1 to what JET MECH said for the vortech

With a lightweight aftermarket clutch that makes a lot of noise below 2200 rpms, I pretty much don't ever see under 2200 rpms anyway unless I'm taking off in first gear. Even then, I idle around 1200rpms so even just a light take-off I'm still starting to move the car at 1600-1800 rpms.

If you run a shorter final drive, reaching higher rpms happens pretty quick anyway. I probably drive around town normal around 2500-3300 rpms mainly to avoid the clutch vibration noise but also that's just where it feels good. I might be wrong, but I get the impression most drivers cruise around the streets at more like 1500-2500 rpms

You're going to downshift anyway if you really want some acceleration. This really is the wrong car for "lazy" style drivers who like to get on it real hard at 2000 rpms in 5th gear. If you're doing that, even a small turbo is going to lag slightly before it starts giving you much boost.

Bottom line is you're going to downshift into at least a semi-aggressive gear for semi-aggressive driving. At mid rpms, you can probably manage to keep a turbo spooled. Either FI method works well with the right driver. A big turbo will let you reach stupid levels of power, though not that many people are able to get traction to use it anyway, but at least it impresses other car guys