Centrifugal Superchargers

[NewyorkKopter]

I'm a Turbo guy and a N/A guy. I was saying that for an Exotic like the S7 a turbocharged musclecar V8 really doesnt go along with its appeal. Turbos are awesome and If Saleen was going to Turbocharge the S7 anyway, why didn't they just do it before. When it came out the car was N/A and made over 550 hp!, then when the compeitition was getting tough, they slapped on 2 turbos and called it a day.

[95_GSX]

Originally Posted by NewyorkKopter

When it came out the car was N/A and made over 550 hp!, then when the compeitition was getting tough, they slapped on 2 turbos and called it a day.

and in doing so, they have put up better numbers then about any other super-car. If they had dropped a massive v-10 or v-12 in the car, it would have required a lot of redesign work becuase they just f**ked up the weight distribution and stress on the chassis. not to mention the new suspension problems. So it made a shitload more since to put a twin turbo setup on the motor. Not to mention, I am sure they can now sell that kit to owners of older model saleens. So when you look at it from about any direction business or otherwise it was the right decision.

Saleen S7 Twin Turbo

[NewyorkKopter]

I guess business wise its good. But the thing that really amazes me is that the twin turbo version jumped 200 hp with only 5 psi boost. So I'm guessing the lag on a low boost system like this would probably minimal right? lol the twin turbo doesn't have much of a rear view either with that intake there.

[95_GSX]

Originally Posted by NewyorkKopter

I guess business wise its good. But the thing that really amazes me is that the twin turbo version jumped 200 hp with only 5 psi boost. So I'm guessing the lag on a low boost system like this would probably minimal right? lol the twin turbo doesn't have much of a rear view either with that intake there.

Truthfully I dont even think you would notice it, The car has a lot of displacement to spin the turbos' to that low of pressure.

[longlivetheZ]

Originally Posted by NewyorkKopter

I'm a Turbo guy and a N/A guy. I was saying that for an Exotic like the S7 a turbocharged musclecar V8 really doesnt go along with its appeal. Turbos are awesome and If Saleen was going to Turbocharge the S7 anyway, why didn't they just do it before. When it came out the car was N/A and made over 550 hp!, then when the compeitition was getting tough, they slapped on 2 turbos and called it a day.

So when the Yankees are doing not-so-hot, they slap on a Johnny Damon and call it a day. So what? Sometimes you do what's needed to fix a problem. Would it be the way we'd do it all the time? No. But at least they fixed the problem well...turbos are the single best power adder known to man.

[95_GSX]

Turbos the only replacement for displacement.

[NewyorkKopter]

True, I'm not saying turbos are a bad idea. I was just saying that if Saleen was going to turbo the car, they should've done it from the start. That way itd seem kinda like tradition, and not so much a loser's way out.

[95_GSX]

Well they could have raised compression, redesigned the heads, find some rotating mass to get rid of, etc. And kept the "traditional set up" but why? The turbos make the car more appealing. I guess I will always disagree with you on whether they took the "easy way out" or not. its been a fun discussion though.

[NewyorkKopter]

lol, yes it has. I really don't have anything against turbos, I was just saying that Saleen should've gotten an engine as exotic as the car itself

[95_GSX]

Originally Posted by NewyorkKopter

lol, yes it has. I really don't have anything against turbos, I was just saying that Saleen should've gotten an engine as exotic as the car itself

now they did.

[SaabJohan]

Originally Posted by NewyorkKopter

Hey, I have a couple of questions about centrifugal superchargers
1- Do they make the whistling noise simliar to Turbos?
2- Do they require something like a blow-off valve or turbo timer?
3- Do they provide good horsepower gains?
4- Are they good for long term use, like does the belt stretch or break in any situation?

1. Yes they will make the same whistling noise. The frequency (tone) of the sound will depend on number of blades and compressor speed while the sound level depends on factors such as pressure ratio.

2. They require a compressor bypass valve if the throttle is placed after the compressor, this to prevent compressor surge.

3. They increase power like any other form of supercharging. Centrifugal superchargers do however tend to cause driveability issues with some highly tuned engines. This since boost is increased as engine speed goes up, so if you got traction problems engine speed will increase and with that boost and torque and then you end up with more traction issues.

4. Belts stretch and can break like any other belt. Belts is however not the only way to power a centrifugal compressor, some use gears instead.

[NewyorkKopter]

yea belts do stretch and snap

[stwatson]

What kind of supercharger do you guys think is THE BEST? Ive heard that the vortech is for starters and not really a good buy. Ive also heard alot about ATI Procharger systems...are there any others that are good. Im lookin at putting one on a 00-04 GT Mustang if that helps with your thought process. Or are there any other cars that would take a supercharger and show good results? Let me know...later

[Black Lotus]

Originally Posted by stwatson

Im lookin at putting one on a 00-04 GT Mustang if that helps with your thought process. Or are there any other cars that would take a supercharger and show good results? Let me know...later

A centrifugal supercharger is a fairly good matchup to most American front engine rear drive cars. Since these cars have built-in traction issues on the street, and large engine displacements, they don't need the mid-range power that a turbo can give. Particularly if the dragstrip is your only racing venue. Since I don't associate with the Mustang crowd, (I consider them cannon fodder, the car, not the people), I can't tell you what works. IMO, the Mustang is a good choice to modify as it is well supported by the aftermarket.

[stwatson]

what about other kinds of cars...what kind of car would you guys buy for 15K or under that is reliable and can be modded easliy with a turbo or supercharger. Please give me a kind of car and brand of turbo or supercharger...thx