Hey i'm not really new to the forums, i do more lurking than posting but my main question is I've been looking into a Vortech supercharger and have been trying to read everything i can about it. I know that it is supposedly the most reliable FI out there but my local shop is trying to convince me that the Single Turbo kits are the better buy because 7psi is 7psi whether it comes from a supercharger or a turbo. and in that 7psi i will be having more power and more torque. I'm trying to avoid blowing the engine seeing as i am only 20 and cant really afford to replace it. I also know that by putting FI on the car that it isnt going to last forever. so my main question is, is he right about 7psi being 7 psi whether it comes from the vortech or a single turbo?

 

Yup.. More torque for sure, thus faster acceleration.. 7psi with a turbo will be faster than 7psi with a supercharger. There are many threads on this.. Search function is your friend~

 

But which is safer? i know it has been discussed on here that the vortech is the safest because i have researched it. but he does have a point of 7psi is 7psi no matter where it is coming from. anyone care to explain the difference?

Thanks Jordan

 

if you are really worried about blowing the motor why not stick with N/A ?

 

i'm looking for more power, i'm getting used to being N/A. Money is an issue being a full time student plus my last car was a turbo so i'm used to boost and how fun it can be to drive. I'm eventually going to build internally but im strapped for cash while im saving for FI.

 

i have a question for you do you have supporting mods such as exhaust, plenum spacer and etc if not maybe you should do that first if money is an issue. If you turbo your car you will get more hp at 7psi with supporting mods then if you didn't have any supporting mods plus you can make you a car a bit faster before you plan on going FI.

 

not sure on this but maybe the 7 psi you get on vortech sc doesn't produce a lot of heat compare to the 7 psi that you get from a turbo. so i think that what's make the vortech sc more reliable. please do not burn me on this, i got n/a engine too, just wanted to help

 

no i'm buying all supporting mods at once to save on the tune. one tune is a lot cheaper than three. i'm pulling the exhaust from a friend off his Z and the spacers will be ordered same day as FI.

But aren't the single turbo's mounted a considerable distance away? not causing as much as heat as a twin setup ?

 

APS single turbo mounts near where the cat is located. TN is located where your air filter box is located. I don't want to start APS vs. TN war, but I highly suggest APS ST. You are gonna need at least 2.5" dual exhaust, forge actuator, HKS EVC boost controller to make the tuning go smoothly.

BTW, I beat the crap out of my stock engine with 10~11psi of boost for over a year. Engine is doing fine still... I used the default mapping that came with the APS ST kit as well. A tad bit rich, but safe.

 

Thank you Lee. If i keep a basic APS ST setup will it be relatively safe? i read all the horror stories about turbos but most are TT or pushing higher boost.

I know my engine isnt bullet proof and that it will go after a while but im just trying to prolong the life of it while being FI

 

Kinda interest as well, just ordered the Vortech myself! The numbers I see the Vortech putting down seem higher than the single turbo's, I know numbers arent all that, but their an indicator as to what you power you can make.

 

With a stock engine, it's a gamble.. So, no one can guarantee you anything.. but with 7psi, you are looking at ~330~350WHP and people consider that pretty safe on a stock engine..

 

now is that the same ESTIMATED WHP that you would get out of 7psi in a vortech? or would that same 7psi push a lower WHP? like sentry for example he is about 470ish i think and all he has INTERNALLY is a set of cams i beileve(been reading most of his work on the vortech). is that normal for a vortech with stock internals or is he pushing it? like TSG said i know numbers aren't everything but it's a good estimation on where i'll end up.

 

Sentry has loads of other mods to push 470whp.. smaller pulley to begin with... He is using alot more boost than 7psi to make 470whp. Vortechs make about 360~380 with 8~9psi AFTER TUNING. Before tuning, you are looking at 350~360WHP with rich as hell AFR. APS ST claims ~385whp with 8psi as well. Once again, it's all in the tuning...

In my opinion, turbo is alot more fun to drive than SC. I had a buddy with Vortech Z, who ditched his SC for a turbo after he drove my car around the block... I drove his SCed Z (370whp), and I felt as if I was driving a NA/stock car... No offense to SC owners..

 

i'm not trying to be a smart *** but if it is all in the tuning why are there so many horror stories about engines blowing after a couple thousand miles?

by the way totally off topic what part of NY you from?

 

Bad installation, incompetent tuner or owner... There are too many variables to list... Also, try to separate the "forged engine+turbo" horror stories from the stock engine+turbo horror stories..

I advise you to seek out a well known tuner for the installation and the tuning session. I believe you are near Sharif...

I really need to change my ID.... Not in NY anymore.. I used to live in Huntington (long island), NY though..

 

yeah i've been hearing A LOT of good things about him and im only about an hour and a half away. But your saying with a good tune i shouldn't see any problem with running 6-8psi on a ST kit relatively safely? would i come out with more power than say a vortech on a 6-8psi tune? my goal is to hit around the 450 mark. i know it's a stretch for the vortech but if it comes to a little more money for safety insurance i'd rather do that.

 

thats exactly why i love my sc, around town its a great daily. open her up she turns into animal.

 

like i said earlier i know numbers arent everything but if you dont mind me asking Nexx how much WHP do you have?

 

Alright.. You NEED to HIT that SEARCH BUTTON NOW! 450WHP on a stock engine and be safe????? I don't think so.. Now, you call that an oxymoron...