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supercharger vs turbocharger

orange395w

OG MEMBER
Staff member
GT400SC said:
Uh, I think you have that 100% BACKWARDS!

With a turbo you can tune when your boost comes on and make sure you get the right size for your combo. I don't think David was talking about the roots style blowers, he's talking about the centrifigal style. Which has to do with a few different variables as does the turbo.
 

Bullitt5055

Well-Known Member
as per Superchargersonline.com

Lag
This is perhaps the biggest advantage that the supercharger enjoys over the tubo. Because a turbocharger is driven by exhaust gasses, the turbocharger's turbine must first spool up before it even begins to turn the compressor's impeller. This results in lag time which is the time needed for the turbine to reach its full throttle from an intermediate rotational speed state. During this lag time, the turbocharger is creating little to no boost, which means little to no power gains during this time. Smaller turbos spool up quicker, which eliminates some of this lag. Turbochargers thus utilize a wastegate, which allows the use of a smaller turbocharger to reduce lag while preventing it from spinning too quickly at high engine speeds. The wastegate is a valve that allows the exhaust to bypass the turbine blades. The wastegate senses boost pressure, and if it gets too high, it could be an indicator that the turbine is spinning too quickly, so the wastegate bypasses some of the exhaust around the turbine blades, allowing the blades to slow down..
A Supercharger, on the other hand, is connected directly to the crank, so there is no "lag". Superchargers are able to produce boost at a very low rpm, especially screw-type and roots type blowers.
 

orange395w

OG MEMBER
Staff member
Bullitt5055 said:
as per Superchargersonline.com

Lag
This is perhaps the biggest advantage that the supercharger enjoys over the tubo. Because a turbocharger is driven by exhaust gasses, the turbocharger's turbine must first spool up before it even begins to turn the compressor's impeller. This results in lag time which is the time needed for the turbine to reach its full throttle from an intermediate rotational speed state. During this lag time, the turbocharger is creating little to no boost, which means little to no power gains during this time. Smaller turbos spool up quicker, which eliminates some of this lag. Turbochargers thus utilize a wastegate, which allows the use of a smaller turbocharger to reduce lag while preventing it from spinning too quickly at high engine speeds. The wastegate is a valve that allows the exhaust to bypass the turbine blades. The wastegate senses boost pressure, and if it gets too high, it could be an indicator that the turbine is spinning too quickly, so the wastegate bypasses some of the exhaust around the turbine blades, allowing the blades to slow down..
A Supercharger, on the other hand, is connected directly to the crank, so there is no "lag". Superchargers are able to produce boost at a very low rpm, especially screw-type and roots type blowers.


That's what I said LOL!. just not in as much detail.
 

Sinful

Well-Known Member
Bullitt5055 said:
as per Superchargersonline.com

Lag
This is perhaps the biggest advantage that the supercharger enjoys over the tubo. Because a turbocharger is driven by exhaust gasses, the turbocharger's turbine must first spool up before it even begins to turn the compressor's impeller. This results in lag time which is the time needed for the turbine to reach its full throttle from an intermediate rotational speed state. During this lag time, the turbocharger is creating little to no boost, which means little to no power gains during this time. Smaller turbos spool up quicker, which eliminates some of this lag. Turbochargers thus utilize a wastegate, which allows the use of a smaller turbocharger to reduce lag while preventing it from spinning too quickly at high engine speeds. The wastegate is a valve that allows the exhaust to bypass the turbine blades. The wastegate senses boost pressure, and if it gets too high, it could be an indicator that the turbine is spinning too quickly, so the wastegate bypasses some of the exhaust around the turbine blades, allowing the blades to slow down..
A Supercharger, on the other hand, is connected directly to the crank, so there is no "lag". Superchargers are able to produce boost at a very low rpm, especially screw-type and roots type blowers.


Lag is almost non existant when adding the right size turbo for a given combo.
 

Bullitt5055

Well-Known Member
they both have pros and cons that you will need to decide from, you should be the one to choose which setup is right for your car, everyone has their own opinions
 

Bullitt5055

Well-Known Member
this sounds soooo much better, but once again it's my personal preference, you might not like how it sounds over a turbo...
 

Bullitt5055

Well-Known Member
sounds to me like your leaning more towards turbo, which is awesome either way you go, it's your choice man, good luck in which ever direction you go...
 

beejay31000

BULLWINKLE
as much as i like the idea of turbo, i am leaning towards staying with the s-trim. it will provide more than enough power for my application, and its easier to tune, and install.
 

Sinful

Well-Known Member
aah check this last vid I'm going to post.

I'm not trying to prove I'm right, it doesn't matter, I don't care. I like both, but turbos are just something else, different, insane in some combos and that's all I'm trying to say.

this is an awesome vid for those who have 03-04 cobras


 

VP_07SRT8

Tell the cops nothing!
Staff member
Board Member
just saying all the stangs setting records these days and hitting the numbers are turbo'd stangs plus supercharger boost almost immediately thats why if oyu get your turbo tuens to spool at 3-3.5k its more streetable imo
 

GT400SC

PM for Decals
Sinful said:
aah check this last vid I'm going to post.

I'm not trying to prove I'm right, it doesn't matter, I don't care. I like both, but turbos are just something else, different, insane in some combos and that's all I'm trying to say.

this is an awesome vid for those who have 03-04 cobras



Without stating whether you were talking about roots blowers or cetrifugal, no one would have known. I have NEVER seen ANY turbo provide instantaneous boost from an un-revved stand still idle like a roots supercharger can. Having two cars with roots superchargers and a third car witha turbo, I have to say, the throttle responds much faster on the two with roots blowers.

Centrifugal is another story and I agree with you there. But I couldn't see ANYWHERE where the type of blower was mentioned.
 

yosemiddysam

Well-Known Member
Donator
I have more HP and Tq than the Cobra playing death games with the semi and mine dont sound like that lol.
 

VP_07SRT8

Tell the cops nothing!
Staff member
Board Member
yeah supercharger gives boost quicker but watch the vids the turbo alwaysruns them down ftw
 

VP_07SRT8

Tell the cops nothing!
Staff member
Board Member
anything being said in here is pointless anyways both choices are bad ass and any car over 500 hp with any set up will be a force to be reckonned with. NOS, superhcarger, turbo, or even a big block with gears. to me anything that is low 11's or lower is fast imo
 
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