Got a question for you XB gear Masters out there Which of the two Turbo or Supercharging put the XB in performance class that sets the Bar? Is it a trade off between the two? I would think that they both require some sort of intercooler, and upgraded fuel system coupled with a piggyback computer? Or will $3300 spent on either work wonders ($3300 is not including the intercooler).


I have a 06 XB and was leaningtowards the supercharger setup but of couse the debet over which application gives or takes power to make power in what prompted this Question.

Thanks

 

from my knowledge i could be wrong...
turbos are high rpm gains, while a supercharger are low rpm gains.

 

with my limited knowledge, I think you are pretty much right. supercharger is always working, regardless of RPM, I think turbos kick in at full throttle....or something like that.



not that it was asked, but I'd say neither belong on an xb/xa.

 

Not trying to start anything by all means, but getting either would be just a waste of money... Think about it. $3000 for just a kit, which doesn't include half of the parts needed to setup forced induction correctly in a manner that won't blow your engine, is a lot of money. Even if you do infact buy all the necessary parts for a complete setup, the gains are not even close to being worth it. Your xB, stock, runs somewhere between 90-95 HP at the crank. You'll be putting enough money into it just to get it to perform up to other 4 cylinder standards, in which you could've bought a car that actually has horsepower to begin with.

I'm not saying don't go for it. It's your car, but its really a waste of money to do something like that to an xB. But, if you were to actually go and do it. I'd recommend a supercharger system, because if you're looking to run it and get results, god knows the xB wouldn't spool a turbo even if you reved the damn thing up all day long.. You might as well go with a supercharger, since its belt driven and will give you gains at lower RPMs.

Just my .02

 

Spectre_Blue your reply may be a homerun, but the truth be told Car+Import+Hard Week of Work+ Hopup = <I just can't leave good enough aloan>, And plus here in FL the dealers even are talking about on it as a dealer option the Supercharge I not sure about the Turbo.

 

FL dealers install as an option? It'd have to be a small boost then if they did it. Assuming they would have their own warranty for the parts. Still, if you decide to go through with it, find out a little bit more about it from the dealer before you invest into something like that. Make sure you know what you're getting for that kind of money.

If I were to spend the money on performance parts myself, I'd just end up going with some of the cheaper bolt-ons to possibly get a few more MPG out of the car. Maybe try to increase air flow through the car or fuel management. Our cars aren't really built for mass air induction, tC yea, but xB and xA, it's gonna be work. LOTS of work.

 

Moved to PH

 

i think its safe to say turbos almost always reveal the most gains..... although i cant really back it up and im not very knowledgable on the subject of FI.


when talking about gains and whether or not a turbo gets gains in the higher or lower rpms depends on the size of the turbo(i think)..... basically turbo lag right? smaller turbo, faster spool, resulting in higher gains in the lower rpms. larger turbo, slower spool but higher gains at higher rpm.

so it really comes down to the correct choice in turbo size in order to fulfill what you want to do. and with the supercharger, you kinda only have one choice.

someone correct me if im wrong on that subject.





also, all your assumptions are correct. but, i hear that intercoolers are not always necessary depending on the set up. fuel system upgrade is almost always a necessity. piggyback computer, of course! .you need to tune the ****



I hope im correct with most, if not everything, that i have said. If not, someone make it known.

 

You really dont know what your talkin about do you huu??
Your .02 seem to be worth just that....02.
xB wouldnt spool a turbo even if you reved the dam thing up all day long????
You know what, Im not gonna even touch this one any further
Tazman...to answer your question, its entirely up to you on what you should do...I did the turbo setup in my car and didnt regret it one bit. Put me up to anyone w/ a blitz s/c and I will show you wich is better. My turbo is at full spool at around 2800 RPM's, which means I pull hard all the way up to redline. Small turbos can make some good power.

 

Simply is right on. A small turbo will give u the best power results, but the S/C will give you the safer power with less wrenching.

Spectra...now ur comments are way off. Not worth it? Car is at 90-95 like u say and with a turbo or S/C u will get upwards of 140 to the ground. That is a 50 percent addition of horsepower to the ground. That is a great amount of increase of power.

And the Supercharged kit that is being installed factory is only on the TC. They have not make a TRD one that is for the xA/xB vehicles.

So in the end what exactly are u looking for. Pure power that will take mantienance: Small Turbo. Almost as much power but not pure all out power that doesnt take alot of mantienance: S/C.

 

I personally am a supercharger guy (my car has one), but if you are just looking for more power get a turbo. It is more complex, more of a pain to tune, and is less reliable though.
Dont listen to people that say dont do it because you will never get a lot of power out of it. If that was true there wouldn't be daily driven 300whp civics and focus's running around. With enough money you can do anything.

 

ok,
Supercharger: This is unit that compresses air by force of the engine. The engine turns a belt which turns the "fans" and compresses air into the manifold. This makes power no matter what RPM you are at. Which means no lag...at all.

Turbo: This uses the spent exhaust gasses to sip the "fans" which compress the air into the engines. This is why there is lag to consider. Now with new ball bering turbos and ceramic fans...turbo lag has been almost eliminated....almost. But, it is true that they shine at the higher RPM range. And yes, the smaller the turbo, the quicker it will spool.

As for mainteneace, they are both going to be a pain. Both set ups run really hot. They need more fuel to match the boost. So thats not really the issue. The issue is the type of driving you are going to be doing. For city driving i would have to say a supercharger simply becasue the boost is always there. We have 4 cylinder engins which do not produce much torque. A superchager will definatly do the trick here. Im talking about bellow 2800 RPM.
Either one is a sloid choice, you just gotta figure out what you want out of it. Remember, top fuel dragsters that run under 4.5 sec's in the 1/4 mile use superchargers, but....many of the land speed record people use turbos cause they build boost.
Lol, i dont know if ive made your decision easier or harder, but hopefully now you know a little more and your final decision will be one you wont regret.
If you have any other questions about turbos or superchargers, let me know.

 

lol sorry, one more thing...
A supercharger will loses more horsepower than a turbo does becasue of whats called parasitic lost...
This means that the supercharger loses a certain amount of horses due to the amount of horses it takes to turn the belts that run the S/C

 

yeah but the turn out from the what the supercharger uses is much greater.

 

having cars with both I still like the supercharger's broad power band...however nothing pulls harder than when your turbo spools up and whoosh....oh yeah I did blow up a 300ZX with 21lbs of boost...2 pistons through the motor....

 

whoooa boy...I know of some kid that just put a turbo on his brand new 350z and threw every rod in the block cause he hooked up his wastegate and bov wrong(didnt even have a boost gauge to show that he was pushin like 20 somethin psi lol) That car must have pulled real hard though for that one run

 

LOL..I manually turned the bost up.via the Haltech...and was seeing what boost I could max it out at.... it ran 16psi np....and poof the Pat Barret trans held np though

 

Guys I have to thank each one you for chiming in on this one, I was on the phone today this SparksTRD(A Scion Dealer) and flat out the guy in the paarts dept said go with the Supercharger. I'm just a Fl dad who's two year old enjoys dad's cars.. So If I where to what something for strip an XB wouldn't have been on the list. Thanks your president Bush I don't what to spend a car note in gas noway. I am thinking that the Blitz is the winner in my mind.

 

all of you guys saying turbos are not reliable have no idea what you are talking about. there are plenty of cars on the market that come with turbos from the factory. not to mention the thousands of aircraft and motorcycles and other vehicles using turbos. if reliability was a factor, no one would be using them in mission critical applications like aircraft. plus, you can't deny the fact that toyota has released a version of the bB with a turbo installed from the factory. also, turbos generally do not require any more or less maintenance than a S/C. as a general observation, engine internals are less reliable than turbos. how often do you hear of people blowing up their turbos compared to how often you hear about people blowing up their engine?
either way you go, your ECU should be tuned with a new fuel map to match the amount of boost you are running. and as long as you keep boost under control, you sould have a decent reliable increase in power either way. should be able to reach the 100hp / litre without much problem.
a lot of people complain about turbo lag when comparing turbo to S/C, but thats only a downside oh large turbos. small turbos (K03s for instance) spool up well under 3k RPM, provide plenty of TQ down low, and are good for around 200hp before they run out of steam.

 

another thing about s/c's I like is there is no need for something like a turbo timer.....