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View Full Version : Turbo vs. Supercharger


pandaspeed
02-07-2005, 06:38 PM
Which is better in your opinion, ie. how they handle boost, hp gains etc.

bcflick
02-07-2005, 09:27 PM
I'm not an expert on the subject but I did a little research and found a few sites to give you a little more infomation about your question... requires reading... Or atleast some cool technology that will read it for you...

http://www.superchargersonline.com/content.asp?ID=19

In short they say Supercharge is better, allows power with no lag... But I'm still getting the turbo.... There are a few other sites out there with information about Turbo Vs. Supercharger... Got my info from Google searching... Listed below are some other sites... Check them out..

http://www.eccompacts.ca/modules.php?name=News&file=article&sid=16
http://www.car-forums.com/s10/t4873.html

Everyone Please post, I'm just good with researching information... Don't have hands on experience with this subject yet so Please... please put your info out there... Thanks..

DTM
02-07-2005, 11:12 PM
well, the problem with superchargers is parasitic loss, basically, it takes a certain amount of horsepower to actually drive the supercharger. Also not all superchargers are the same. Roots type superchargers (the ones that sit on top of the intake manifold) are the famous instant boost superchargers, if you get something like a vortex, aka centrifugal supercharger, they behave much like turbos, in that they gradually build boost. I personally perfer turbos, the lag can be a bummer tho.

hey gotbo0st
02-07-2005, 11:12 PM
depends on several things:
what kind of car
plans for how much power
budget
time


Personally I would go turbo over supercharger. Yes, s/c provide more power earlier, but they are parasitic running off of a belt connected to the engine. There is nothing like the feeling of boost, and being able to turn a little dial and give your car more horsepower, where in a s/c you would need to change belts.

DTM
02-08-2005, 10:38 AM
depends on several things:
what kind of car
plans for how much power
budget
time


Personally I would go turbo over supercharger. Yes, s/c provide more power earlier, but they are parasitic running off of a belt connected to the engine. There is nothing like the feeling of boost, and being able to turn a little dial and give your car more horsepower, where in a s/c you would need to change belts.

yea, boost controllers are another plus, and theres nothing like the sound of an external wastegate :D

bcflick
02-08-2005, 02:38 PM
Question??? When a person gets a Turbo or Supercharger how can you change the Speed-o-meter to read to correct speeds??? Expecially when you hit the 150 marks.. most Standard cars go upto what 130; 140...

I could probably ask my mechnic and he would do it, but I want to know what exactly needs to be done.. If anyone could tell me...

Especially after I put in my ECU...

Chris
02-08-2005, 03:04 PM
You car is going to be gearing limited to something under those speeds probably. Otherwise, you'll look at an aftermarket speedo, or cluster.

Bossman429
02-08-2005, 03:34 PM
All depends on your budget and you car. I know there are NO turbo kits that work well with my car (00Mustang GT) but a huge SC market. But obvisously a DSM isnt gonna put on a SC when they have so many avail. turbo its etc.

Also generally TC is more expensive than SC i could spend 3grand and have a full SC set-up but would spend well over8grand on a custom TC set up its all depending on which car u have

hey gotbo0st
02-08-2005, 05:05 PM
my boost controller has a speed readout on it but my speedo goes to 160

oh btw, I found a pic from last years rally of my speedo buried well under the 160 mark, but I cant find my damn disk drive for my laptop and its on there with no way to get it out.

DTM
02-08-2005, 07:13 PM
Question??? When a person gets a Turbo or Supercharger how can you change the Speed-o-meter to read to correct speeds??? Expecially when you hit the 150 marks.. most Standard cars go upto what 130; 140...

I could probably ask my mechnic and he would do it, but I want to know what exactly needs to be done.. If anyone could tell me...

Especially after I put in my ECU...

theres no need to recalibrate it, but all stock speed-o's have a built in inacuraccy usually around 10mph once u start getting into the double digits. the only truly accurate way to measure speed would be a gps speedo

bcflick
02-08-2005, 08:43 PM
theres no need to recalibrate it, but all stock speed-o's have a built in inacuraccy usually around 10mph once u start getting into the double digits. the only truly accurate way to measure speed would be a gps speedo

So, once I upgrade the gear box, put in my turbo, work on the sespension, add the GPS speedo the skys the limit...

Of course I will have to weight her down, the regular lancer is too light...

DTM
02-08-2005, 09:05 PM
weigh her down? weight is the enemy!

hey gotbo0st
02-08-2005, 09:31 PM
yeah, but with that monstrosity on the back its liable to get airborn

White Out
02-09-2005, 02:04 AM
Superchargers are good for motor's with large tq. outputs that can afford to loose some power to make more. SC's are also generally used for lower psi ratings and can only make so much more (pully size). Supers are run off the crank.
Turbo's allow for much more boost spectrums and don't use any power to make it. However they do run off exhaust so they do produce lag before they start spoolin in boost. This also lets the motor rev more freely, which is a reason for it being good for smaller motors.
Long story short with turbo v. sc. If you have a f.i. ford V8, chrys V8, or any big 3 gas truck, supercharge it. If you have a carb'ed V8, supercharge it. If you have a GM V8 turbocharge it (think lingenfelter). If you have a Diesel, turbocharge it. If you have a V6, I6, I5, I4, H4, or rotary, turbocharge it.

Nick

ibex37
02-09-2005, 07:22 AM
Superchargers are good for motor's with large tq. outputs that can afford to loose some power to make more. SC's are also generally used for lower psi ratings and can only make so much more (pully size). Supers are run off the crank.
Turbo's allow for much more boost spectrums and don't use any power to make it. However they do run off exhaust so they do produce lag before they start spoolin in boost. This also lets the motor rev more freely, which is a reason for it being good for smaller motors.
Long story short with turbo v. sc. If you have a f.i. ford V8, chrys V8, or any big 3 gas truck, supercharge it. If you have a carb'ed V8, supercharge it. If you have a GM V8 turbocharge it (think lingenfelter). If you have a Diesel, turbocharge it. If you have a V6, I6, I5, I4, H4, or rotary, turbocharge it.

Nick


Very well put, i couldnt have said it better myself
keep in mind the aftermarket is going to determine what is even availble for your car
ex. my car... 99 prelude, there are turbo kits and s/c kits but for a high reving engine i would turbo charge it and call me a ricer but i like the bov sound too haha
it you want simple power go nitrous a good 35 or 50 hp shot would do the trick for about $600 and still be safe on a stock engine. if you want big power and have big bling go with a custom turbo setup but be ready to dish out $7k plus...

White Out
02-09-2005, 12:13 PM
if you want big power and have big bling go with a custom turbo setup but be ready to dish out $7k plus...
The only turbo kits that I have seen that are over $7,000 are APS (350z, G35, GTO) and Lingenfelter. I don't think that I have ever seen a turbo kit for that much cash for a honda (non-NSX). A Greddy turbo kit for a honda should be under $4,000.

Nick

Chris
02-09-2005, 01:43 PM
Welcome to BMW and teh world of $11k turbo kits. Oh, and you still only make low 400s. WTF BMW!

White Out
02-09-2005, 05:06 PM
Welcome to BMW and teh world of $11k turbo kits. Oh, and you still only make low 400s. WTF BMW!
That is messed up. Glad I have a factory turbo'ed car.

Nick

DTM
02-10-2005, 10:24 AM
dude u can make ur own kit for like 2.5 grand, 600 for the turbo, 500-700 for a turbo manifold, 800 for an intercooler (on the expensive side) 100 bucks for piping and 150 for a bov, oh and if u going external wastegate, then another 150 for the w/g.

btw on the bmw note, some dudes in turkey (forgot the name of the shop, but m3forums.net has a thread on it on the e46 forums) are developing a turbo kit for the m3 for 12K dollars that gives you 750HP!!

Chris
02-10-2005, 11:19 AM
That will require lowering compression, and become very involved. Probably a full motor rebuild.

Maybe you can make your own kit for 2.5k for an e30 318 or something, but I am talking about an e36 m3. You're way off, and missing tons of parts. Fuel delivery, for starters, then fuel/spark management. Plus, your $600 turbo is going to be shit.

You can't do it cheaply for an e36 m3.

DTM
02-10-2005, 11:41 AM
yea im talking like a basic setup, cant boost more than like 5-9lbs w/ that on most motors, i was speaking about cars in general, not the e36

DTM
02-10-2005, 11:42 AM
alright maybe 3 grand and u ad in injectors and a pump

Chris
02-10-2005, 11:57 AM
And then what, a rising rate fuel pressure regulator? Ghettttto setup ;)

White Out
02-10-2005, 03:15 PM
And then what, a rising rate fuel pressure regulator? Ghettttto setup ;)
Nothin ghetto about that. Almost every GN/TTA owner is running one.

Nick

White Out
02-10-2005, 03:18 PM
Which is better in your opinion, ie. how they handle boost, hp gains etc.
My families turbo v. supercharger battle.
Grand National - turbocharged 3.8V6 (mine)
WRX STi - turbocharged 2.5H4 (mine)
Hummer - turbocharged 6.5 diesel V8 (mom)
Jaguar XKR - supercharged 4.0 V8 (mom)
300ZX - twin turbo V6 (bro's)

Nick

hey gotbo0st
02-10-2005, 03:20 PM
post a pic of your bro's Z

White Out
02-10-2005, 03:34 PM
I don't have one. It is a completely stock 90 or 91 black t-top. He wants to get a new exhaust for it sometime soon (it has like 70,000 mile on it). I am tryin to talk him into a turboback catless set up.

Nick

Chris
02-10-2005, 03:39 PM
Nick,

I was talking about newer vehicles with more complex engine management, i.e. e36 m3 ;) In that case, software is the proper way to do it, and RRFPR == ghetto. In the case of the GN, obviously it works, and works well ;)

Chris

Chris
02-10-2005, 03:40 PM
Also, just replace that XKR with an RS6, and concede to the turbocharger(s).

White Out
02-10-2005, 05:39 PM
I don't think she will ever get rid of it. 1 of 3 red hardtop XKR's for 2001. Hers was the first one in the country and used for 2 years on Jaguars web page.

http://img.photobucket.com/albums/v466/suboobaruWRseX/xkr3.jpg

Nick

Chris
02-10-2005, 06:03 PM
Fair enough ;)

DTM
02-10-2005, 07:27 PM
if you need, i can "get rid of it" for you

DTM
02-10-2005, 07:51 PM
And then what, a rising rate fuel pressure regulator? Ghettttto setup ;)

well, heres what u get when u spend a little cash

1000hp of supra killing glory
http://damsport.7host.com/mert/son5.gif
http://damsport.7host.com/mert/wwwww.gif
garrett gt42/51r
http://damsport.7host.com/mert/son8.gif
fashion red....w/e the fuck that means, looks like pink to me, but when its on a 1000hp car....i dont give three shits
http://damsport.7host.com/mert/mmmmm.gif

pandaspeed
02-10-2005, 07:55 PM
that is the biggest turbo i've ever seen

DTM
02-10-2005, 07:55 PM
then u havent seen much

pandaspeed
02-10-2005, 07:58 PM
oh hold up at first glance it looked bigger, my bad

DTM
02-10-2005, 08:01 PM
thats a 17in rim, i mean its BIG, but turbonetics makes some bigger shit, like the thumper

DTM
02-10-2005, 08:04 PM
those guys are also soon to be the home of the first 750+hp turbocharged e46 m3

hey gotbo0st
02-10-2005, 10:12 PM
oh hold up at first glance it looked bigger, my bad


lol


and that is a big ass turbo. That build had to be MAJOR $$

White Out
02-11-2005, 12:35 AM
It is as pink as my STi badges. :D

Nick

White Out
02-11-2005, 12:36 AM
well, heres what u get when u spend a little cash

1000hp of supra killing glory
http://damsport.7host.com/mert/son5.gif
http://damsport.7host.com/mert/wwwww.gif
garrett gt42/51r
http://damsport.7host.com/mert/son8.gif
fashion red....w/e the fuck that means, looks like pink to me, but when its on a 1000hp car....i dont give three shits
http://damsport.7host.com/mert/mmmmm.gif

One word... LAG!

Nick

hey gotbo0st
02-11-2005, 12:40 AM
It is as pink as my STi badges. :D

Nick


its as pink as ALL of chris araders shirts from last years rally

fagmo

DTM
02-11-2005, 01:17 AM
lol


and that is a big ass turbo. That build had to be MAJOR $$

well, their upcoming turbo kit for the e46 that puts out 750 is 12grand installed, quite the bargain for that kind of power. They make alot of the stuff in house, which keeps costs down to some degree, notice the handmade intake mani and fuel rail (theres also a handmade turbo mani). Plus, theyre in turkey, so labor must be dirt cheap

Chris
02-11-2005, 01:39 AM
One word... LAG!

Nick

Obviously there is gonna be lag, but I bet it isn't as bad as you think. BMW I6's make lots of power down low, so I bet it spools reasonably quickly. Think of the difference between the 2.0 wrx and the 2.5 STi.

Chris

Gixxer2k4
02-11-2005, 01:43 AM
what size turbo is it? what redline?

Gixxer2k4
02-11-2005, 01:44 AM
used to have a e35 and hell, it had a lot of low end power, but redline was only , if I can remember right 8300

Chris
02-11-2005, 01:55 AM
What is an e35?

Gixxer2k4
02-11-2005, 01:58 AM
didn't have the car long and don't know much about the BMW but it was a 535is, only thing I knew about the car is that it had a trip-tronic shifter and insurance was high as shit at the time

Gixxer2k4
02-11-2005, 01:59 AM
don't know much about the engine name like e36, ? i was just guessing due to it being as older car

Chris
02-11-2005, 02:09 AM
e28 bodystyle, but I don't tihnk it revved to 8300. Cool car, regardless

Gixxer2k4
02-11-2005, 02:12 AM
wished i kept it.. i loved that car, it was such a sleeper. Didn't know they didn't make many till I sold it. No wonder I got got money for it

n0denine
02-11-2005, 04:17 AM
my boost controller has a speed readout on it but my speedo goes to 160

oh btw, I found a pic from last years rally of my speedo buried well under the 160 mark, but I cant find my damn disk drive for my laptop and its on there with no way to get it out.


Thats weird my speedo goes to 180 i thought yours did too, Ill check my friends 90' 300z TT. What kind of boost controller do you have that reads the speed? and is it acurate?

n0denine
02-11-2005, 04:27 AM
I believe that everything said about SC's are correct, I would prefer the Turbo route because of

1. Love the sound
2. Can run higher amounts of boost
3. Lag really isnt that bad
4. None of this "you will loose torque because its belt driven" crap
5. In a SC the only advantage really is instant boost down low but you have to relize what that means
- You WILL spin the tires easily
- You loose some of your engines power to make the power
- Low end power wont matter at any speed higher then 10-30MPH because your turbo will have spooled by then
- When your rpms in 2-5th or 6th are above 2500-3500 RPM (assuming yur turbo spools at those rpm's) low end power doesnt matter there either


So your only advantage with a supercharger really is around idle-2500 or 3500RPM in 1st gear. Now how many times will you be off the line racing duing the highway dominate rally?

White Out
02-11-2005, 08:51 AM
Obviously there is gonna be lag, but I bet it isn't as bad as you think. BMW I6's make lots of power down low, so I bet it spools reasonably quickly.
Chris
That turbo is huge, like 1/4 of the size of the long block. It is gonna definatly not get boost untill damn near 4,000 rpm. When it hits boost it will make up for all the time w/o it but will still have a bit of it. That is what my GN does.

Nick

hey gotbo0st
02-11-2005, 12:17 PM
Thats weird my speedo goes to 180 i thought yours did too, Ill check my friends 90' 300z TT. What kind of boost controller do you have that reads the speed? and is it acurate?

You can check if you want, but 300zx's come with speedo's up to 160. The avc-r reads speed, rpms, boost, etc. I don't know how accurate the speedo is, I never rely on that, but the rpm's and boost are dead on, even more so than my stock gauge cluster.

n0denine
02-11-2005, 01:55 PM
White out: Your GN i would imagin gets Spinnage like a beast already i would think how much more would you spin with a SC'er. Nice cars BTW

Got Boost: The AVC-R Is a really nice Boost controller, wish i had one. I just couldnt justify myself spending close to $500 for one but since you have one im curious is it really all that much better then an average EBC? I might pick one up.

hey gotbo0st
02-11-2005, 05:45 PM
eh, its ok. It's real difficult to understand and learn, its not measured in PSI. There are some cool features, like the displays and the ability to control boost separately in each gear. Overall it is a good b/c, but I regret getting it now because it is less than optimal for my car's setup with the twin turbos.

DTM
02-11-2005, 07:01 PM
That turbo is huge, like 1/4 of the size of the long block. It is gonna definatly not get boost untill damn near 4,000 rpm. When it hits boost it will make up for all the time w/o it but will still have a bit of it. That is what my GN does.

Nick

yea but it probably revs at least to 8 grand so thats plenty of powerband

White Out
02-12-2005, 02:40 PM
White out: Your GN i would imagin gets Spinnage like a beast already i would think how much more would you spin with a SC'er. Nice cars BTW
The car already has a turbo.. It dosn't need to be twincharged with the turbo's availble for it.

Nick