Super vs turbo
 

Alright so I've been lurking on this sub forum for awhile now. I've been doing a ton of reading on what the best forced induction solution would be for my car.

I had thought I was going to settle on a supercharger because it was a simpler setup, would provide boost at lower rpm, and be easier overall for me to deal with since this is my first nice car.

But this past weekend I was talking with a friend about going with a super charger kit and he mentioned that he thought a turbo would be s better choice given that we have such a small engine.

I'd really appreciate your guys' thoughts on the matter. A little more background, this vehicle is my dd so reliability is the most important aspect, I'm honestly looking to get just a bit more torque, not a ton.

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Header.

It depends on what your looking to get out of the car. I see you say you just want the car to be a daily driver and your not looking for to much hp/tq increase.

If that's all your looking to do then, in my OPINION a supercharger would benefit you for your needs. It keeps your curves more "n/a feeling" wich for a daily driver would be nice.

As far as keeping it reliable, thats going to depend highly on your tune...no matter what forced induction you choose. Its been proven these engines can last quite some time with boost, but get a bad tune and it might not last the drive home from the dyno.


Now, I would also like to say that even though I gave my opinion that a supercharger would benefit your needs, I am in no way saying its a better choice then a turbo. With a small enough turbo you CAN achieve CLOSE to the same "instant boost" as a supercharger, however you'll always have that slight lag due to the need of exhuast gas pressure to spin your turbine as opposed to a pulley thats connected to the crank via a belt.

Ah, the good ol' SC vs turbo debate. I prefer a SC. As stated before, it gives instant power as soon as you step on the gas. While small turbos can spool fast, they will still not give you INSTANT power (but close to it). I'm not a peak HP kinda guy. I like steady, linear power that I can use to weave in and out of traffic and take off from a stop light without having to rev my engine to achieve boost. While the BRZ I bought the wife is not currently FI, if she wants more power after the warranty is up, I will end up installing a SC.
Both turbos and SCs are great. It really does depend on what you want out of the car and how you intend to drive it.

Nitrous

lol...

Maybe the search function doesn't work on Crapatalk:

http://www.ft86club.com/forums/showt...ighlight=turbo
http://www.ft86club.com/forums/showt...ighlight=turbo
http://www.ft86club.com/forums/showt...ighlight=turbo
http://www.ft86club.com/forums/showt...ighlight=turbo
http://www.ft86club.com/forums/showt...ighlight=turbo

There are five threads just in the last year. If you want reliability and a bit more torque, not a ton. Then this is not the section for you. Go get yourself a nice header/exhaust setup and a good tune.

You should stay away from FI then. By putting either a supercharger or a turbocharger on your engine you're completely voiding any portion of the warranty that the dealer can tie to the significant increase in power. So if your engine shits itself on the dyno (this has happened) or just driving down the street (also happened), then you're out a functional car. These cars seem to be reliable below 300 hp, but accidents happen.


The dealer will likely void your warranty for a header and tune as well, so you still need to consider what's more important to you. I stopped at a stage 1 reflash, because I like my warranty. They could still void it because of the reflash, but that's a lot harder to detect than a shiny new header. Once my warranty is up then I'll probably throw a header on there.

I know it doesnt work on my Samsung Galaxy Note II :bonk: Which sucks!

Header + FP + E85 done

If you want low RPM power, don't get any of the centrifugal super chargers (JRSC, Kraftwerk, Vortech). You'll need something like the Cosworth kit or something similar.

Do you like the feeling of a nice linear powerband that pulls right to the top? Centrifugal blower. Do you like the feeling of lots of torque in the mid range? Turbo. Do you want a bit of a mix that may fall off up top slightly? Roots style blower.

IMO.

Really really appreciate the replies guys.

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Oh gawd an S/C vs turbo thread again?

http://malottdesign.bagcaddystore.co...11/office3.jpg

There's always that electric supercharger...

http://forums-cdn.appleinsider.com/3...andelbaum.jpeg

Why not both?

Never been disappointed with my choice of a supercharger. I've had it for over a year with no issues. Daily drivability and reliability is not an issue.

How big was the difference in you gas mileage?

I have had 3 different FI setups on the 86 platform. I first started out as one of the first Innovate kits with a JDL EL header, Greddy axle back on the stock pulley and e85. The car responded very well down low and mid range. The top end struggled a little but wasnt a big deal to me for what I used the car for. Mpg on ethanol for daily driving was down to roughly 18mpg at best not even really going WOT on the car. I moved to a JDL single scroll, EL manifold, PTE DBB 5558 w/ full 3in exhaust on flex fuel. The car had amazing power throughout the rpm band. Mpg's were anywhere between 19mpg-29mpg depending on fuel and driving habits. The down fall for me was the heat that came with the kit in the hot AZ desert. Due to an engine failure from pushing the stock block to the limits, the turbo came off and was sold. I am now on a custom wastegated Vortech V3 setup, 2.87 pulley, 2.5in catback and pump gas. The vehicle drive ability on this setup is literally like stock. My max boost setting on 91oct pump piss is 10psi with very little timing in it. The wastegate helps a lot with a meatier tq curve and am able to adjust boost levels via the EBCS on Ecutek. I have zero heat issues, IAT's are good and it pulls nicely all the way to redline. Mpg is around 24-25 right now which isnt bad.

Moral here is I have had way to many setups and never can make up my mind but hopefully it's some insite on what there is. PM me for any further details on each.

go turbo

If you want a reliable DD. don't go forced induction. Otherwise get the best tuner you can find.

^Sage advice there...

I would like more information on how you put an electronic boost controller on a Vortech. What kind of wastegate is it? Is it actually exhausting the unwanted boost or are you using it to bypass the compressor? It also sounds like you're tuning this yourself?

PM'd

What I did. Definitely makes the car more peppy and fun. I also cut nearly a second off my quarter mile time.

You don't strike me as someone with strong mechanical knowledge. This car is your DD and therefore I am assuming you don't have lots of disposal income either... Like me. Do yourself a favor, keep reading, dreaming and reading. The more you read the more you will steer yourself away from this treacherous roadway tuning a car will take you.

What will you do if one morning you fire up your car and the check engine light comes on? What? Take everything off you car and bring it into the dealer and play that game? What if its totally trashed but you still owe $20k on a car that doesn't work? Just imagine the nightmare. If you want more power sell it and but a wrx or something. Of, make your wife by a 2015 wrx 6 speed and have the best of both worlds. .. Like i did.. Ps I like the 86 more

I would like to know this information as well.

Centrifugal Rotrex type SC just moves the torque and HP curves up to a higher level, same overall feel with more power.
Sprintex scroll type provides more low down power but peters out up top.
Turbo moves everything up from mid onward, except twin scroll which kicks in lower and peters out toward the top.

Tune is essential for safety.

Pick your flavour.
,
S/C is simpler mechanically as you don't have to divert engine oiling and coolant and there is no exhaust modification necessary.

I went centrifugal for simplicity, keeping my header and it easily met my power goal without extreme stress on engine and drivetrain. The torque dip is gone and the engine maintained its personality, just more of it.

Don't remember. Didn't do it thinking of fuel economy.