Turbo Charging Vs. Super Charger

[NakedAsaltGerbl]

What the title says, I was wondering what you ppl's takes were on which is "better" Personal experience is a plus :).

[tpb31]

for me the "better" choice was the most economical choice at the time and I went S/C

[sogood]

It depends on your situation and how much whp you want to acheive.

[ParadigmGuy]

What the title says, I was wondering what you ppl's takes were on which is "better" Personal experience is a plus :).
:lol

[M3/4 LIFE]

It depends on your situation and how much whp you want to acheive.


yes ... and also how much money you have to spend. do a search on this cause its been discussed soooooooooo many times. each setup has its pros and cons. you'll find quite a few threads discussing the benefits of each and also comparing the two.

very generally speaking with relation to an e36 M3 (my knowledge base) turbo setup's will cost more ($7-11k new) and provide more power (anywhere from 300-700whp) and TQ. superchargers setups deliver less power (anywhere from 280whp-450whp) but cost quite a bit less ($4k-$8k). you can make more power with each setup and the biggest limitation there is gonna be money. seriously tho ... do that search ... read up and good luck!

[Def]

hahahahahahaha

I love how BF.com FI section still has one of these threads every week!

[EEEEeeee36]

hahahahahahaha

I love how BF.com FI section still has one of these threads every week!
Yup. Search is your friend. If you still have questions, post them in one of the older threads.

[EEEEeeee36]

Here are a few decent sized threads on the subject. If you do a search for "turbo supercharger" you get literally 10+ pages of threads.

http://forums.bimmerforums.com/forum/showthread.php?t=150850&referrerid=&highlight=turbo%

http://forums.bimmerforums.com/forum/showthread.php?t=597009&referrerid=&highlight=turbo%

http://forums.bimmerforums.com/forum/showthread.php?t=436101&referrerid=&highlight=turbo%

http://forums.bimmerforums.com/forum/showthread.php?t=433260&referrerid=&highlight=turbo%20supercharger

http://forums.bimmerforums.com/forum/showthread.php?t=110960&referrerid=&highlight=turbo%

http://forums.bimmerforums.com/forum/showthread.php?t=410920&referrerid=&highlight=turbo%

That should start you off pretty good...

[highboostingm3]

If you get bored easily and need to stare death in the face to get your kicks, if you want to scare your friends until the shat themselves, if you want to be able to make pretty simple upgrades when you need much more power, if you want to have an excuse to get a deep tissue massage once a month by that chic who looks a lot like one of the Fitness RX covergirl models due to whiplash from getting slamned in your seat so hard....get turbo.

If you want to easily be able to moderate the gas pedal for power delivery, if you like good top-end power with a linear feel, if you like to track or autocross your car a ton...then maybe S/C is for you.

[agu845]

If you get bored easily and need to stare death in the face to get your kicks, if you want to scare your friends until the shat themselves, if you want to be able to make pretty simple upgrades when you need much more power, if you want to have an excuse to get a deep tissue massage once a month by that chic who looks a lot like one of the Fitness RX covergirl models due to whiplash from getting slamned in your seat so hard....get turbo.

If you want to easily be able to moderate the gas pedal for power delivery, if you like good top-end power with a linear feel, if you like to track or autocross your car a ton...then maybe S/C is for you.

LMAO!

[MrBlonde]

If you're interested in drag racing, I'd love to see you with a supercharger.

[EEEEeeee36]

If you get bored easily and need to stare death in the face to get your kicks, if you want to scare your friends until the shat themselves, if you want to be able to make pretty simple upgrades when you need much more power, if you want to have an excuse to get a deep tissue massage once a month by that chic who looks a lot like one of the Fitness RX covergirl models due to whiplash from getting slamned in your seat so hard....get turbo.

If you want to easily be able to moderate the gas pedal for power delivery, if you like good top-end power with a linear feel, if you like to track or autocross your car a ton...then maybe S/C is for you.


If you're interested in drag racing, I'd love to see you with a supercharger.


What these guys are saying in a nutshell is: Don't determine the project first and then the use; figure out what you want to do and then your options will become evident. Are you drag racing the car? Are you going to be doing any Auto-X, Race Course, or HPDEs? Figure out what you want to do first and then you can figure out what you need - each has their pros and cons.

[rootuddha]

this is interesting news to me. i just started autocrossing and plan on doing it a lot...as well as attending an HPDE or 2 and im also about to turbo my 95 M3. i can understand how the nice linear power from a supercharger might be better for autocrossing but how do turbo'ed m3s compare to supercharged m3s in autocrossing? by the way i'll be using a td06 20g which spools pretty quick

[highboostingm3]

td06 20g which spools fast
:confused That condradicts quite a few threads on here.

[rootuddha]

are you sure? from what i understand a 20g will spool fast as shit on my car

[DakarDave]

You'll need to specfy for what application: To me there are two categories:

1) Crazy Power (500-600+rwhp)

The only real answer here.. for our platforms.. is TURBO

0) A crazy custom turbo from ICS!!!!! :alright

2) Medium Power (400-500 rwhp)

Here are my choices in order of preference:

1) A properly sized turbo (think GT35...) kit
2) High Boost TS supercharger (ES stage II supercharger - still in testing)
3) Low Boost TS supercharger (ES stage I supercharger or AA Stage II)
4) Any turbo kit... even with an undersized turbo (think 20g)... well maybe not a mechtech :)
5) Low Boost TS supercharger without intercooler (AA Stage I)
6) CF supercharger (vortech based, aftercooled, running 10-11psi)
7) High numeric diff.. i.e. poor man's supercharger :)
8) low boost CF supercharger

-Dave

[CeeP]

you want torque?
get a turbo.

[EEEEeeee36]

you want torque?
get a turbo.
That isn't necessarily the case anymore. A good twinscrew supercharger provides 75% of it's peak torque before 2500rpm.

V8 power out of a six, linear, easier to control with throttle. It also stays cooler in most situations which is why a lot of guys run it on HPDEs and Road Coarse.

[highboostingm3]

are you sure? from what i understand a 20g will spool fast as shit on my car
Who told you that? I get 2 guesses...

1) the guy trying to sell you a used AA kit
2) AA

Turbo gets full boost at 3800-4000rpm. If you want full boost at that level then might as well get a t67 turbo and make 700whp.

[Concentric190]

turbo > supercharger

/thread

[rootuddha]

Who told you that? I get 2 guesses...

1) the guy trying to sell you a used AA kit
2) AA

Turbo gets full boost at 3800-4000rpm. If you want full boost at that level then might as well get a t67 turbo and make 700whp.

wrong and wrong. i had gathered that from some stuff i read...particularly on this forum but i guess you could consider it all just "hear-say"

in any event the question still remains....is a supercharger that much better than a turbo on the track? as mentioned i plan on autocrossing a lot and i'd like to be competitive so whats the take?

[e36'n]

Who told you that? I get 2 guesses...

1) the guy trying to sell you a used AA kit
2) AA

Turbo gets full boost at 3800-4000rpm. If you want full boost at that level then might as well get a t67 turbo and make 700whp.

ahahhaaha

:lol

[redflame]

wrong and wrong. i had gathered that from some stuff i read...particularly on this forum but i guess you could consider it all just "hear-say"

in any event the question still remains....is a supercharger that much better than a turbo on the track? as mentioned i plan on autocrossing a lot and i'd like to be competitive so whats the take?

im no forced induction specialist here..
but i think this is pretty easy to determine..


when autocrossing i think S/C would actually deliver more equal even power to the ground helping the driver control the car better vs. a turbo where power will peak at certain point and not be as linear as a S/C..


just my thought on it

-Sam

[M3/4 LIFE]

im no forced induction specialist here..
but i think this is pretty easy to determine..


when autocrossing i think S/C would actually deliver more equal even power to the ground helping the driver control the car better vs. a turbo where power will peak at certain point and not be as linear as a S/C..


just my thought on it

-Sam

you nailed it.

[pbonsalb]

A turbo or twinscrew that is properly sized should also be fine -- with proper sizing for the application (i.e., on the small size for autocrossing), the power curve will start early and you won't be driving in and out of an abrupt power onset. Consistency and control would probably be easiest with the centrifugal SC, but at lower rpm, it won't make the torque of a properly sized turbo or twinscrew because not much boost will be present. However, you might not be autocrossing in the 2000 to 4000 rpm range, but instead in the 4000 to 7000 rpm range.

I would post your question in the track forum. Some of the people there with forced induction who race might be best able to help you make your decision.

Philip Bradley

[NakedAsaltGerbl]

I probly should have mentioned that i plan on using this for Autocross, not drag racing, nothing personal but IMO bimmers seem much better suited for twisties than going in a straight line :). And on a diff subject im a lazy F*** so i didnt feel like reading through the old threads (Im sorry :( ). Oh and one other thing i have an 89 I motor that imm planning to do the hole i head to e block swap into my 86 325 es (if that has any bearing on what I should be running for auto cross, I was personally thinking of going s/c, but it would be a good setup for either with the low comp that ill be making.

[pbonsalb]

[QUOTE=NakedAsaltGerbl;7512388] And on a diff subject im a lazy F*** so i didnt feel like reading through the old threads (Im sorry :( ). /QUOTE]

Most people around don't particularly care to waste the effort helping people who are too lazy to help themselves. At least you are honest about it, but I won't be helping any further.

Philip Bradley