Turbo vs Supercharging Pros and Cons
04-09-02, 06:22 AM
#61
Actually I don't have all the cash yet...$10k is a lot of money!!! Especially for a college student 
...Yes my car is 5-spd and I would need to upgrade the clutch. I think that's about it for me.
I'm looking on getting this done about the end of summer. Right now all I could really afford is the fmax kit, but I rather save and get a kit that's more reliable and makes more power.
Another option I just thought about is Sound Performance. They they also make a very nice header but its very expensive, I think $2700 for header/3" downpipe/HKS GT Wastegate. I know they don't make a kit, but if you want them to piece together a kit they would be happy to do it. SP has done quite a few NA-T's that I have heard about and some are making some serious power.
...Yes my car is 5-spd and I would need to upgrade the clutch. I think that's about it for me.I'm looking on getting this done about the end of summer. Right now all I could really afford is the fmax kit, but I rather save and get a kit that's more reliable and makes more power.
Another option I just thought about is Sound Performance. They they also make a very nice header but its very expensive, I think $2700 for header/3" downpipe/HKS GT Wastegate. I know they don't make a kit, but if you want them to piece together a kit they would be happy to do it. SP has done quite a few NA-T's that I have heard about and some are making some serious power.
04-09-02, 09:11 AM
#62
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The technology for Supercharge has comes a long way. Now the modern SC have intercooler to lower the ambient temp. Special impeler to increase air flow at low rpm. Right now, sc can easily compete with turbocharger in power out put. SC will run cooler and lower intake temp. cooler mean more dense air which will produce more horse power.
Depending for A/R for turbo. Lower A/R will produce much low end, but exhaust back pressure is too great. Too large A/R, low end will suffer. Here is my list of pros and cons:
Turbocharger:
Pros:
1. Big WOW fractor
2. Efficient using waste energy for produce usfull energy
3. Spool at lower rpm-but depending on A/R
4. Turbo unit can be located anywhere
Cons:
1. Complexity-plumpings
2. Heat-destroy everything near by
3. higher intake temp
4. Exhuast pressure
5. Oil pain puncture for oil
6. Must run with intercooler if you want good HP
7. Higher cost
8. Higher labor cost
Supercharger:
Pros:
1. Easy of installation
2. Lower intake temp
3. Kits are lower in price
4. No oil pain punture - Modern SC are Self Contained
5. preditable power curve
6. lower heat produce my sc
Cons:
1. RPM determined HP-new blow off valves allow higher PSI setting and reach peak PSI much faster.
2. HP lost due to pulley drive
My vote: SC
I just installed my ATI Procharger F1SC into my built 98 Cobra. The impeler is double with one for low end and one for high end. The gear ratio is 5:1 with 1550 cfm. 1550 cfm is about the size of T76 turbo unit. It is setup for 18 psi (rated max at 32 psi) with 3 psi for blow off. That mean once the engine reach 15 psi, the rest is blow off and recycled. What it means is that i will get more power at lower rpm range. At 15 psi, i will be getting about 525-540 rwhp.
I had my older blower that ran 55,000 miles and it was running beautifull since day one before i sold it.
Depending for A/R for turbo. Lower A/R will produce much low end, but exhaust back pressure is too great. Too large A/R, low end will suffer. Here is my list of pros and cons:
Turbocharger:
Pros:
1. Big WOW fractor
2. Efficient using waste energy for produce usfull energy
3. Spool at lower rpm-but depending on A/R
4. Turbo unit can be located anywhere
Cons:
1. Complexity-plumpings
2. Heat-destroy everything near by
3. higher intake temp
4. Exhuast pressure
5. Oil pain puncture for oil
6. Must run with intercooler if you want good HP
7. Higher cost
8. Higher labor cost
Supercharger:
Pros:
1. Easy of installation
2. Lower intake temp
3. Kits are lower in price
4. No oil pain punture - Modern SC are Self Contained
5. preditable power curve
6. lower heat produce my sc
Cons:
1. RPM determined HP-new blow off valves allow higher PSI setting and reach peak PSI much faster.
2. HP lost due to pulley drive
My vote: SC
I just installed my ATI Procharger F1SC into my built 98 Cobra. The impeler is double with one for low end and one for high end. The gear ratio is 5:1 with 1550 cfm. 1550 cfm is about the size of T76 turbo unit. It is setup for 18 psi (rated max at 32 psi) with 3 psi for blow off. That mean once the engine reach 15 psi, the rest is blow off and recycled. What it means is that i will get more power at lower rpm range. At 15 psi, i will be getting about 525-540 rwhp.
I had my older blower that ran 55,000 miles and it was running beautifull since day one before i sold it.
04-09-02, 09:31 AM
#63
just for clarification on your list
superchargers create MORE heat than a turbocharger of the same size
intake temps on a similar size turbocharger with an intercooler vs a similar size supercharger with an intercooler; the turbo will have lower intake temps because it generates less heat in the first place
you might be running 15psi with a 3psi blowoff; but turbos don't have to do that
on a 2jz-gte with a T60-1; it'd spool full around 3500rpms; and from then on to redline, a boost controller puts in a HUGE power band that puts a similarly supercharged V8 to shame.
plus the boost levels that turbos can run is far higher than any supercharged car because the turbos have lower intake temps (more pressure = higher temperature)
and if you wish to have proof; back in the turbo F1 days, when they had 1300cc and 1500cc 4bangers and V6s making 1300 and 1500hp; they were running CRAZY boost numbers; like 80psi I believe... not that they used normal gas or anything
superchargers create MORE heat than a turbocharger of the same size
intake temps on a similar size turbocharger with an intercooler vs a similar size supercharger with an intercooler; the turbo will have lower intake temps because it generates less heat in the first place
you might be running 15psi with a 3psi blowoff; but turbos don't have to do that
on a 2jz-gte with a T60-1; it'd spool full around 3500rpms; and from then on to redline, a boost controller puts in a HUGE power band that puts a similarly supercharged V8 to shame.
plus the boost levels that turbos can run is far higher than any supercharged car because the turbos have lower intake temps (more pressure = higher temperature)
and if you wish to have proof; back in the turbo F1 days, when they had 1300cc and 1500cc 4bangers and V6s making 1300 and 1500hp; they were running CRAZY boost numbers; like 80psi I believe... not that they used normal gas or anything
04-09-02, 10:12 AM
#64
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ok....let me get this right......a supercharged.....V8.....built motor.....and a T76 sized blower makes only 540 hp....lets see what my stock motored 3.0l 6cyl makes on a T70 turbo........and whats the twin impeller deal..?.......ill take my nice quiet turboed motor...and destroy s/c mustangs all day 
......wanna play Jeff
......wanna play Jeff
04-09-02, 10:34 AM
#65
Lexus Champion
Jeff, that's the best point of all, his built V8 with T76-sized blower is going to put out in the same ballpark what you were making on your old setup, with a stock I6, no way to argue with that. Looking forward to the new dyno numbers. Sammy, I was wheelin' and dealin' in college just to pay for N2O refills - bartending, racin', parting out cars, and taking detailing jobs, all while studying for Business Management. I totally agree, wait and save for the better kit, I believe in doing things only once, so it's gotta be right the first time, right?
- Jon
- Jon
04-09-02, 10:50 AM
#66
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Guys,
Dont get too excited. My car is pumping 15 psi because i dont want to abuse my car. If you want to pump 1000 psi be my guest. I have friends with mustang pumping 27 psi making over 1200 rwhp.
Dont get too excited. My car is pumping 15 psi because i dont want to abuse my car. If you want to pump 1000 psi be my guest. I have friends with mustang pumping 27 psi making over 1200 rwhp.
04-09-02, 12:03 PM
#67
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and my friend with a stock supra motor only adding cams made 903 rwhp with only a single turbo...no nitrous........on a whimpy 3.0l 6cyl..and this is a full street car.......a/c...power steering....TV and all......and the mustang?........Jeff
04-09-02, 12:07 PM
#68
Originally posted by SC300TURBO
and my friend with a stock supra motor only adding cams made 903 rwhp with only a single turbo...no nitrous........on a whimpy 3.0l 6cyl..and this is a full street car.......a/c...power steering....TV and all......and the mustang?........Jeff
and my friend with a stock supra motor only adding cams made 903 rwhp with only a single turbo...no nitrous........on a whimpy 3.0l 6cyl..and this is a full street car.......a/c...power steering....TV and all......and the mustang?........Jeff
healerhand,
the point is, the turbo is more efficient than a supercharger, end of story... first the T76 example, then this? running 27psi on a gargantuan blower to make 1200rwhp? while a very small 3.0l I6 put out 903rwhp on just a big turbo; prolly running the stock bottom end; not to mention the car is still drivable
04-09-02, 02:31 PM
#71
Healerhand wrote:
A Little wrap and coating makes this a moot point.
WRONG.....no difference
This is a con? Engine require some backpressure to properly scavenge exhaust gases and a turbo does not provide TOO much BP. You'd be surprised how little BP a turbo causes.
Never had to do this
WRONG.... exactly same as a supercharger... Compressing Air creates heat no matter how you do it.
WRONG
AGREED, very low.
WRONG.
3. NOISY
4. INEFFICIENT
5. Poor air Intake quality due to exhaust from TurboCharged SC300 in front
Originally posted by healerhand .......
Turbocharger:
Pros:
1. Big WOW fractor
2. Efficient using waste energy for produce usfull energy
3. Spool at lower rpm-but depending on A/R
4. Turbo unit can be located anywhere
Cons:
1. Complexity-plumpings
2. Heat-destroy everything near by
Turbocharger:
Pros:
1. Big WOW fractor
2. Efficient using waste energy for produce usfull energy
3. Spool at lower rpm-but depending on A/R
4. Turbo unit can be located anywhere
Cons:
1. Complexity-plumpings
2. Heat-destroy everything near by
3. higher intake temp
4. Exhuast pressure
5. Oil pan puncture for oil
6. Must run with intercooler if you want good HP
7. Higher cost
8. Higher labor cost
Supercharger:
Pros:
1. Easy of installation
2. Lower intake temp
8. Higher labor cost
Supercharger:
Pros:
1. Easy of installation
2. Lower intake temp
3. Kits are lower in price
4. No oil pain punture - Modern SC are Self Contained
5. preditable power curve
4. No oil pain punture - Modern SC are Self Contained
5. preditable power curve
6. lower heat produce my sc
Cons:
1. RPM determined HP-new blow off valves allow higher PSI setting and reach peak PSI much faster.
2. HP lost due to pulley drive
1. RPM determined HP-new blow off valves allow higher PSI setting and reach peak PSI much faster.
2. HP lost due to pulley drive
4. INEFFICIENT
5. Poor air Intake quality due to exhaust from TurboCharged SC300 in front
Last edited by sc300tt; 04-09-02 at 02:35 PM.
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