I was thinking that as well so I will not flame you.

First of all, when I cruise, I do that at 140Kmh, that's 87.5mph for you and since I have 4.57 gears, I see 5500rpm. The SC will spool depending on the engine speed, no matter what throttle posision you have, so I would see boost all the time (not full boost but still, not mentioning the use of a smaller pulley)
The turbo WILL spool up at 3500rpm only at WOB. When you keep your foot of the thottle, you can slowly reach 90mph, but since the butterfly in the throttle body is nearly closed, there will be only a small amount of air entering the intake manifol=smnall amount of gases exiting the engine=turbo will not spool fast....got it?

 

Supercharger Pros:
Bolt on installation
Proven off the shelf item
CARB legal (if you care)
Doesn't require a lot of knowledge/know-how

Supercharger Cons:
No setup flexability
Power delivery
Power output

Turbo Pros:
Bolt on kits available
Flexabilty: option for custom setup, different turbos
Upgradeability
More efficent design
Power output

Turbo Cons:
Requires some knowledge/know-how
Emissions legality


Contraty to popular belief a turbo kit is not going to blow you motor anymore than a S/C or nitrous would. It's only going to be as relaible as the installation and fuel/engine management will allow it to be. Ultimately given the same peak hp a properly matched turbo will have more torque and make more hp over a wider range. Read: the turbo car will be faster and you can keep the car in vac at light load. If you're going to go turbo you have to know what you want and how to go about getting it. You can have a 800HP dyno queen or a 350hp road racer, it's up to you. That kind of flexability is impossible with the S/C kits, you'll get the peak power of a road race setup with the power deliver of the dyno queen. But hey, it was a simple install... Off the shelf kits for both are around the same price but I'd suggest an EMS system no matter which way you go.

 

 

I took off my Vortech ( for sale ) and switched to a turbo and think it was the way to go. Not stuck on 8 or 9 lbs I can now run to 30 lbs. Sure it cost but I think it was money well spent.

 

what will you do to keep the engine in "safe mode" under 30psi???

 

From what I read here, if I was to do at Turbo or SC, it looks like a SC would work for me, since I want the power on the track (road corse).

 

Actually a nice sized turbo would likely give you a muchwider power band and make more power with lower boost.

 

How can it make "more" power with "less" boost?

Just a guess, but I'm thinking you meant to say, "more power in the lower rpm range." (??)

Drive Safe,
Steve R.

 

Modern turbos tend to have very efficient compressors and turbines, couple that with the fact that for a given boost pressure there's no parasitic losses that a belt driven supercharger has and it's easy to see how turbos can make the same power or more at a few less PSI. But, you're right they'd likely make more power in the lower RPM range as well.