Turbo OR Supercharger????

Nick06tC · #41 (**permalink**) Fri., Oct 05, 2007

I REALLY REALLY REALLY want to. If someone local had the cash to buy the supercharger, i would in a heart beat!!!

Did I mention I want a turbo?!?!?!?!?!?!

ac3 b00gi3 · #42 (**permalink**) Sat., Oct 06, 2007

lol lol .. i think u did

Idiaz28 · #43 (**permalink**) Thu., Oct 18, 2007

nick how are you? where do you live because if the price is right, I would buy your S/C

ac3 b00gi3 · #44 (**permalink**) Thu., Oct 18, 2007

looks like u gotta sale bro

monkeyzz510 · #45 (**permalink**) Sat., Oct 27, 2007

lol i would so get a turbo, but the supercharger sounds more efficient
cause i use my car to commute alot

bwood87 · #46 (**permalink**) Sat., Oct 27, 2007

You can "turn off" your turbo. You get an auto boost controller and it can open your wastegate when you do not want much boost.

tc_man · #47 (**permalink**) Sat., Oct 27, 2007

hi guys, i have question . i found turbo kit on ebay for $1500. worth it buying.i am thinking to buy tc 04 or 05 automatic and need some power. add 50 -100 hp not more then that. i want to keep it daily drive. i want to know if this kit is full kit not any part is missing.

need your help. thanks

http://www.getpartsusa.com/ebay/Turbo/Kit/XB-T33.jpg

sorry my english is bad

ac3 b00gi3 · #48 (**permalink**) Mon., Oct 29, 2007

i heard about that .. is it expensive

navylife59 · #49 (**permalink**) Mon., Oct 29, 2007

Ah yes, those hidden costs of a turbo kit.

bwood87 · #50 (**permalink**) Mon., Oct 29, 2007

Depends on a lot of things. the unit itself that manipulates the wastegate is pretty cheap, but you need a way to make it move. Some standalone ECMs have a function that allows you to attach and control such a device.

Overdrive23 · #51 (**permalink**) Tue., Nov 13, 2007

maybe my brain isn't working correct today so i appoligize if this is an obivous ? but:

what is so "unreliable" about a s/c in comparison to a turbo? i would think that a s/c is more reliable. but that's probably b/c i've had a wrx and other friends have too and they have busted their turbo (i didn't!)

so yeah....??? anyone?

bwood87 · #52 (**permalink**) Tue., Nov 13, 2007

A S/C is more reliable in as it usually does not strain an engine as much. There are arguments on either side though. It is not a 100% true statement. Generally a S/C is easier to run with fewer supporting mods.

Who said a S/C is unreliable in comparison to a turbo?

Ahriman · #53 (**permalink**) Tue., Nov 13, 2007

how much boost can you throw at a tC before you need to start swapping internals?(pistons/rods/etc)

monkeyzz510 · #54 (**permalink**) Tue., Nov 13, 2007

i think after 9.5 psi you gotta rebuild your motor do some stuff to it that i don't know
so it can withstand all that force induction

ac3 b00gi3 · #55 (**permalink**) Wed., Nov 14, 2007

i plan on building my motor before anything .. wheather i S/C or Turbo *NOT SURE YET* .. i don't want to even know that i'm at risk of blowing my motor .. so to prevent it all i'll jus re-build it with lighter pistons .. new cam and crankshafts .. a lil fuel management .. all topped off with a GOOD tune .. then i'll drop in my F/I

Nick06tC · #56 (**permalink**) Wed., Nov 14, 2007

For the supercharger unreliable. That is just a Scion tC thing. TRD has had MAJOR issues with the supercharger. I am on my second.

And I know 3 people personally who have gone through 3 EACH. All different shops installing them.

As far as how much boost for a tC. People have done up to 14PSI, without doing anyhting internally. but that isnt the norm. Usually 11-12 PSI is the limit. That is turbo tho.

Supercharged, it can handle more because it isnt a sudden boost, and its only at redline so the engine isnt stressed through the entire RPM range.

Ahriman · #57 (**permalink**) Wed., Nov 14, 2007

Quote:

Originally Posted by Nick06tC

For the supercharger unreliable. That is just a Scion tC thing. TRD has had MAJOR issues with the supercharger. I am on my second.

And I know 3 people personally who have gone through 3 EACH. All different shops installing them.

As far as how much boost for a tC. People have done up to 14PSI, without doing anyhting internally. but that isnt the norm. Usually 11-12 PSI is the limit. That is turbo tho.

Supercharged, it can handle more because it isnt a sudden boost, and its only at redline so the engine isnt stressed through the entire RPM range.

in my experience, superchargers are more reliable than turbo set ups... thats why you used to see more OEM superchargers than OEM turbos, at least untill recently, there are ALOT of new cars out there that are turbo from the factory now.... ALOT

i partially agree with what you said about turbo seeing high boost throughout the RPM range, but depending on the setup the same can be done with a supercharger.... take my setup for example, i have a 2.7" pully that is capable of putting down 20psi at redline, but when i run it i usually limit boost to 17 psi via the bpv(cracked and melted the stock piston in cyl 4 @ 19psi

) , but i hit 17psi just over 4k rpm's, so i see 17psi for most of the power band. theoretically i could throw a smaller pully on there and still limit the boost to 17psi, and would see that 17psi throughout the RPM's, BUT that would greatly increase the amount of heat the blower would make from being spun out of its efficiancy range.

the thing thats nice about turbo's is they dont have any parasitic loss. belt drivin superchargers take power to make power... think about driving with the a/c compressor on, a supercharger has the same effect, and the faster you spin a blower the harder it is to spin and thus takes more power. if you had two cars that were identicle in every way, and you put a turbo on one and a supercharger on the other, and all factors were the same for both setups(cfm, boost, intake temps, etc), the turbo setup would make more power b/c it doesnt use up any power to make its boost. but generally a supercharger is more reliable b/c often, considering the whole set up, there are fewer parts to break or leak or whatever. and usually with a supercharger there is a much smoother power delivery, turbos can tend to be more punchy, esp if theres lag.

Nick06tC · #58 (**permalink**) Thu., Nov 15, 2007

I agree with you on cars. EXCEPT THE TC.

The tC uses a centirfugal supercharger, meaning it makes max boost at EXACTLY redline. Then you have the issues of you cant use a pulley smaller than 14 PSI due to clearance issues of the belt and other parts.

I agree a supercharger USUALLY is more reliable than a turbo, but for the tC its just not the case. I know why they went the route they went, but it sucks.

Ahriman · #59 (**permalink**) Thu., Nov 15, 2007

Quote:

Originally Posted by Nick06tC

I agree with you on cars. EXCEPT THE TC.

The tC uses a centirfugal supercharger, meaning it makes max boost at EXACTLY redline. Then you have the issues of you cant use a pulley smaller than 14 PSI due to clearance issues of the belt and other parts.

I agree a supercharger USUALLY is more reliable than a turbo, but for the tC its just not the case. I know why they went the route they went, but it sucks.

well like i said, i dont know anything about tC's, we just picked one up a few weeks ago for my woman and im here to learn more about it. iv always been into superchargers more than turbos, and i was hoping to eventually s/c my girls car, but from what i have been reading abou the trd kit, i may just take it the turbo route.

i didnt realize it was a centrifugal supercharger you guys are running, im used to dealing with positive displacement roots type blowers, and twinscrews and whatnot. my nighbor has a pro-charged mustang, if im not mistaken the prochargers are centrifugal.