turbo or supercharger?

[hasa68mustang]

so now i suppose the question is supercharge it or turbo it?

maybe like, pros and cons?

TURBO!!! cause they sound cool... lol hmmm Turbos are a little more difficult to plumb I guess, but no big deal. ummm it all depends on placement and goals and I am ALWAYS hearing about how I shoul ddrop a v8 in it, then they hear that I have a TURBO ON AN AMERICAN MUSCLE CAR?!?!?!? I never hear the end of it... while others think that its just the cooest thing ever. either way we'll accept you here.

 

[Anlushac11]

8)

Turbos make more power but usually not til over 2500rpm and have the associated problem of exhaust and low end bog til boost builds. They also usually require a oil line run and very prompt and on time oil changes or the bearings will cook and be ruined. Worst thing you can do to a turbo car is drive it hard and then pull in and park without a cooldown period.

Superchargers are prized for their off idle neck snapping throttle response and good power making. Downside is the brackets and mounting hardware and lining up pulleys. A number of superchargers have internl oiling and IIRC a few like Powerdyne use ceramic bearings that never need oiling.

Not sure if its still true but in the past rule of thumb was 75% power added for turbo and 45% power added for a supercharger. Modern technology and computer aided designs have kinda blurred the performance differences so both are good.

 

[Anonymous]

Turbo of course! But I'm biased.
Superchargers take more power to turn.

I'm biased, too

To really understand the differences, you need to look at BSFC numbers on the dyno. HP for HP, the supercharged engine will burn MUCH more fuel (I have seen over 30% more in some cases) to make the same HP. That means the engine is working that much harder.

Also, that supercharger is running all the time. The turbo, ay cruise speeds, is just along for the ride.

8)
Turbos make more power but usually not til over 2500rpm

Mmmm...it depends on how the set-up is built. A proper built header with a divided tangential housing on a ball bearing (BB) turbo will give INSTANT boost.

8)
1) They also usually require a oil line run and very prompt and on time oil changes or the bearings will cook and be ruined.
2) Superchargers are prized for their off idle neck snapping throttle response and good power making.
3) Downside is the brackets and mounting hardware and lining up pulleys.
4) A number of superchargers ... like Powerdyne

1) so do most superchargers
2) ONLY the POSITIVE displacement ones (like roots),
centrifugal superchargers are usually worse than turbo for lag.
3) BIG downside. :thumbdown:
4) Flowerdyne are complete trash. They're VERY cheap used for a VERY good reason

 

[Anonymous]

Use both! Turbo pushing through an intercooler then run into a roots supercharger. Instant off idle boost from the super with boost "stacking" at high RPM. You can get away with a pretty large turbo as exhaust pressure will be higher because of the super. I was thinking about an Eaton blower from a super coupe or gm 3.8L with a big Garret T4 pumping into it on a 4.9L. This is an extreme performance setup (i.e. drag car only) and plumbing would be a nightmare bit it'd be kewl!

Nate

 

[Bort62]

See, Thing is with a setup like that however you would almost certainly make the car faster by ditching the super and just using a bigger turbo and adjusting the gearing and rpm characteristics of the engine to match.

There really is no limit to how much power you can make with a turbocharger. That's not really a productive question.

 

[wallaka]

True that. No reason to more than double the complexity of a system just to be complex.

 

[Anonymous]

and they dont make roots blowers for our cars do they?

i thought roots blowers were the screw type like directly on the manifold.
so thats not really an issue...lol

but i still dunno. i got dual exhausts so that helps with turbo, since it wouldnt have much backpressure. it y's near the engine, so if i put turbo, it could y after the turbo like now. lalala. idk it will be a while. very good question i think tho, the comparison.

thanks 8)

 

[hasa68mustang]

but i still dunno. i got dual exhausts so that helps with turbo, since it wouldnt have much backpressure. it y's near the engine, so if i put turbo, it could y after the turbo like now. lalala. idk it will be a while. very good question i think tho, the comparison.

thanks 8)

I ran with just a small amount of exhaust exited about where my pacemaker headers would when ran open and it was actually pretty quiet, the turbo makes for a great muffler and apparently so does the inside of a car right linc?

 

[Anonymous]

yeah i guess it makes sense that it would quiet it. thats also a wicked idea leaving it open like that hehe!

i have mine run through the rear rollpan, so i'm gonna stick with my exhaust routing, but i can always remove the glasspacks and run it straight where they were. that would help it spool up quicker too - having less backpressure...

if not for the rollpan i bought and had painted from a GT, i'd run straights under the doors right before the back tires like a viper.
I saw it on another six and it was neat