Ba Xr6 Supercharging

[useless]

Say there is a 250 rwkw turbo car vs a 250 rwkw supercharged car.. On the street the supercharged car will destroy and spit out the turboed car no problems. If you like having to spool up a turbo and then taking off then it is fine .By comparison the supercharger will have you frying tyres without the lag of a turbo. You will get boost as soon as you floor it. A turbo relies on the exhaust to drive the turbine and by that time..kaswoosh!! Youre gone with the blower !!

At the drag strip I can only assume the times will be similar though.

[dansedgli]

  useless said:

Say there is a 250 rwkw turbo car vs a 250 rwkw supercharged car.. On the street the supercharged car will destroy and spit out the turboed car no problems. If you like having to spool up a turbo and then taking off then it is fine .By comparison the supercharger will have you frying tyres without the lag of a turbo. You will get boost as soon as you floor it. A turbo relies on the exhaust to drive the turbine and by that time..kaswoosh!! Youre gone with the blower !!

At the drag strip I can only assume the times will be similar though.

that's not the deal with the centrifugal superchargers though Stav. Superchargers like the raptor, powerdyne and vortech make more boost as the rpm's rise.

If the supercharger tops out at 10psi, it will only be doing it high in the rev range. A well setup turbo system will see full boost low in the rev range while a supercharger might only be making half its peak boost at the same rpm.

As far as I know no-one makes a kit to fit the type of supercharger you mention to an I6.

[Azzman460]

your both right in saying that about the superchargers, they do make boost all the way through the rev range, however not full boost. And as the argument always is, the turbo uses engine waste to make more power where the supercharger takes away a fair bit of engine power to make more power. That said, the $10,000 you will spend to get a supercharged I6, by CAPA's dyno charts, will get you 250rwkw, where as if you were to spend that much turboing your I6, you could make in excess of 400rwkw. As I said ealier I am planning on spening $6-7000 with new internals (keeping in mind if you supercharge with a kit, the 10k doesnt include any internals) and I will make 300+, I could probably exceed the 350 rwkw mark. In the way of bang for your buck, I think the turbo is definately the way to go.

[useless]

  dansedgli said:

that's not the deal with the centrifugal superchargers though Stav. Superchargers like the raptor, powerdyne and vortech make more boost as the rpm's rise.

If the supercharger tops out at 10psi, it will only be doing it high in the rev range. A well setup turbo system will see full boost low in the rev range while a supercharger might only be making half its peak boost at the same rpm.

As far as I know no-one makes a kit to fit the type of supercharger you mention to an I6.

I have done the sums and if I were to supercharge my wagon I can try a 14psi vortech and should see around 300 rwkws. It would cost me around the 5 k mark wih me installing it. I already have big pump,regulator and valve springs to take 800 lift.

[useless]

A turbo charger is simply a cetrifugal supercharger driven by exhaust. The power reduction from modern superchargers is very minute .

[Azzman460]

You could argue forever about which is better but I guess in the end it comes down to personal preference, what your after from your car and how much your willing to spend! Ellisy let us know what you decide to do in the end!

[Dillz]

Sell yours for about 15 buy a T for about 20 and your done.

  Ellisy said:

considering the power delivery is pretty much linear all the way to red line, not to mention less torque.

Wheres the fun in that?

And Azzman your 6 speed box alone will cost around 6k

Edited 14/08/08 03:03 AM by Dillz

[Azzman460]

haha Dillz that little clip is an absolute pissa! top stuff. Yeah buying a T is all good and well, but I love my car and will thoroughly enjoy turboing it myself. Plus if you buy a T then your the same as everyone else that has a T, which isnt a bad thing, but I'm after something a little different and the fact that I can say "I did it myself" is even cooler. Yeah the box is going to be one of the most expensive parts of this project, but having people in the know I can hopefully pick one up for around 3-4k. Mine will be more expensive as I'm putting in a bulletproof bottom end to prevent any nasty things happening and having to pay more dollars again to fix it. And a fancy electronic boost controller. I still find it the cheapest way to make the most power.

[Dillz]

Good on you mate for wanting to have a crack at it yourself, I'm sure if you do your research and do it the right way you will have a wicked NA/T. All I'm saying is yeah it can be done and be done well but if your main reason for doing it is because of dollars rather then just because you want to then it probably won't work out cheaper then buying a bargain BF T for 23k. Sure you might have a Turbo but it just wouldn't be as good or have a warranty.

This is just my opinion, good luck with it either way.

[Azzman460]

yeah cheers man, nah definately not doing it just because of the money, just something differernt and hella quick haha! it should be a very nice unit when completed.