TRD supercharger from Scion?

[silverRS]

hmm sounds really tempting but that alot of cash for such a small supercharger, aren't turbo's allot cheaper?? Cant I buy a TRD turbo or will that not fit either??? damn you Japan

[YarisHatch]

Originally Posted by silverRS

hmm sounds really tempting but that alot of cash for such a small supercharger, aren't turbo's allot cheaper?? Cant I buy a TRD turbo or will that not fit either??? damn you Japan

As i stated before, the trd turbo will not work with the usdm 1nz motors. The japan 1.5l's they use are a different engine code, different sensors, totally different ecu and their gas is much different. Why does this matter? The trd turbo puts out 136whp on the 1.5l bB, however that is with 101octane. Sounds so high here in the states but yeah, makes a huge difference. Point? Even if you could manage to run with it (impossible with the motor and usdm ecu) you wouldn't see gains above 30whp, i.e 110whp.

As a general rule, turbos are about the same if not more expensive than a supercharger. Also maintanence is much higher on a turbo than a supercharger. Very rare do you not have to tune a kit even if it does come "pre tuned" with a piggy back system. Even so, after a while tune ups are a must. Worth it? Turbos almost always make more power per psi than a supercharger. Design is everything when it comes to boost.

Here are some prices too for the boost applications i mentioned, keep in mind i still don't know if these will actually fit and work in the yaris bay. Even if it did, i believe the 1nz in the yaris shares the same ecu as the 2006. 95% of all kits out there right now are for 2005 or older. Ecu maps are different as well as a few o2 censors.

Blitz - $3,000
Power Enterprise - $3,200
Greddy s/c - $2,600
Greddy t/c - $2,800
ZPI turbo - $3,600
Custom - $2,200+

I just rounded to a middle average, some sell these kits for cheaper, some sell for more. ZPI you can only buy at zpi and one or two other websites, usually kenny will hook you up in deals.

Heres tack on prices that would be a must that most forget about: Upgrading injectors, performance belts, good fuel management, upgraded pistons, full synthetic tranny oil, full synthetic motor oil, stage 2+ clutch (manuals), shift kit (auto), atf cooler (auto). To get the most out of any boost application with our motor i'd also recommend motor mods, especially 2.5'' exhaust for boost. (2.25'' exhaust for n/a...not talking about tip, talking about piping)

All in all, you are looking at atleast $5,000+ after all the parts you need to have to ensure a long lasting motor under the extra power and stress, and tuning..some things i mentioned you don't have to have, some are usually included in the kits but not all.

[Calidrifter]

Originally Posted by YarisHatch

As i stated before, the trd turbo will not work with the usdm 1nz motors. The japan 1.5l's they use are a different engine code, different sensors, totally different ecu and their gas is much different. Why does this matter? The trd turbo puts out 136whp on the 1.5l bB, however that is with 101octane. Sounds so high here in the states but yeah, makes a huge difference. Point? Even if you could manage to run with it (impossible with the motor and usdm ecu) you wouldn't see gains above 30whp, i.e 110whp.

As a general rule, turbos are about the same if not more expensive than a supercharger. Also maintanence is much higher on a turbo than a supercharger. Very rare do you not have to tune a kit even if it does come "pre tuned" with a piggy back system. Even so, after a while tune ups are a must. Worth it? Turbos almost always make more power per psi than a supercharger. Design is everything when it comes to boost.

Yeah but a supecharger is constant hp throught the band and you do't get turbo lag. Also with any turbo upgrade if you plan on running over 7 psi you WILL need to get new internals. And from whtaI have been hearing the 1NZ has pretty weak internals already, so don't be surprised to see some dumb kids in here with a ""I blew up my engine" thread in here.

[YarisHatch]

Originally Posted by Calidrifter

Yeah but a supecharger is constant hp throught the band and you do't get turbo lag. Also with any turbo upgrade if you plan on running over 7 psi you WILL need to get new internals. And from whtaI have been hearing the 1NZ has pretty weak internals already, so don't be surprised to see some dumb kids in here with a ""I blew up my engine" thread in here.

I know of two xb owners that have run 8-9psi daily for over two years with no problems, with some internals upgraded. Yeah, it isn't the greatest motor in the world but its not that bad if you build the motor right. Unfortunately, most don't.

And some turbos have more lag than others, no one turbo design is the same as another. Do some research and you'll find the one for you.

[Yaris Revenge]

I'd much rather have the supercharger anyway. I like to bolt off the line, and it'd be even cooler in such a dinky car.

Honestly, I never have a need to run more than 75mph, and I'm sure it'll do that just fine without a turbo. Not like I'm gonna' be racin' for pink slips or anything!

~YR

[505zoom]

Originally Posted by YarisHatch

...Also maintanence is much higher on a turbo than a supercharger...

Care to elaborate on that one?... in my experience, that statement should be the other way around.

[SophieSleeps]

Originally Posted by 505zoom

Care to elaborate on that one?... in my experience, that statement should be the other way around.

You tend to hear that from people who are not boosted.
Perpetuated myths.

I too have had more problems with superchargers than with turbo's.
In fact I know a guy who has blown 13 superchargers on his car...leaving at least 2 motors needing a rebuild or replacement.

I have rarely seen a blown turbo.

[tca4]

http://www.k4.dion.ne.jp/~vitz/Compressor.htm

[why?]

200 whp. Man that would be tempting.

[YarisHatch]

Yeah, it is tempting. The only issue i have with their kit right now is the fact its still unreliable. Once they get it tuned and see how the afr is and everything, i might feel better. Relying on a learning ecu isn't exactly the best reliable way, but so far they have impressed me.

On the yaris, 200whp would be an incredable amount of power, power to weight would be right around 10.5-11 (without actually doing the ratio figures), which is enough to put the yaris in the high 12's with a proper driver and swapping the gears, with the stock gears you could easily do low 13's. You wouldn't need that much power for autocross and road course's, but yeah. Definitely something to consider.

[SophieSleeps]

Honestly, ever supercharged car I've ever worked on I have never liked.

I would never go with a supercharger.
Nowadays, they've been far surpassed by turbo technology.

A turbo'd car is tons more fun to drive and much much more versatile for power adjustment.

Hitting 140rwhp would be unreasonable for 3500.
You could run nitrous for 1k and do the same.

[TRD_Yaris]

Originally Posted by SophieSleeps

Honestly, ever supercharged car I've ever worked on I have never liked.

I would never go with a supercharger.
Nowadays, they've been far surpassed by turbo technology.

A turbo'd car is tons more fun to drive and much much more versatile for power adjustment.

Hitting 140rwhp would be unreasonable for 3500.
You could run nitrous for 1k and do the same.

Yup. Superchargers run off the engine, sapping power and have to USE a LOT OF STEPPER gears to get NEAR 50,000 rpm..
TURBOS run off UNUSED EXHAUST GAS, which is UP TO 70% of the energy of the Air/Fuel Explosion...and can easily spool to 80,000+...

superchargers are kinda nice on s2000s since they rev to 9K...but not on yaris.
3500 and only 40 whp gain? NOS would be much more efficient. Though, the new Blitz Vitz superchager can be turned completely off..that's not bad for fuel efficiency, either.

[SophieSleeps]

Originally Posted by TRD_Yaris

Yup. Superchargers run off the engine, sapping power and have to USE a LOT OF STEPPER gears to get NEAR 50,000 rpm..
TURBOS run off UNUSED EXHAUST GAS, which is UP TO 70% of the energy of the Air/Fuel Explosion...and can easily spool to 80,000+...

superchargers are kinda nice on s2000s since they rev to 9K...but not on yaris.
3500 and only 40 whp gain? NOS would be much more efficient. Though, the new Blitz Vitz superchager can be turned completely off..that's not bad for fuel efficiency, either.

Yeah, but you don't supercharge a car for fuel efficiency.
40whp gain sucks. Not worth the money.

[pennystocks]

A newb comment but turbos sound better too =D

[SophieSleeps]

Originally Posted by pennystocks

A newb comment but turbos sound better too =D

I hate supercharger whine...

whirrr whirrr whirrr...belt slippage and stuff.

[eight_heads]

i personally like both, but turbos are easier to fix and expand upon.... if you have a supercharger and want more boost, you have to buy another supercharger(the whole setup)... if you have a turbo and want more, you can either rebuild the turbo for more boost or buy a bigger turbo..but a new turbo(just the turbo) is alot cheaper than a new supercharger.... and being that most of us won't be running a whole lot of boost, you can get some of the smaller turbos that will spool very fast and barely have any turbo lag... superchargers however will always rob power

[SophieSleeps]

Originally Posted by eight_heads

i personally like both, but turbos are easier to fix and expand upon.... if you have a supercharger and want more boost, you have to buy another supercharger(the whole setup)... if you have a turbo and want more, you can either rebuild the turbo for more boost or buy a bigger turbo..but a new turbo(just the turbo) is alot cheaper than a new supercharger.... and being that most of us won't be running a whole lot of boost, you can get some of the smaller turbos that will spool very fast and barely have any turbo lag... superchargers however will always rob power

Err not really.

If you have a supercharger and want more boost, you can change the supercharger's drive pulley to a smaller one. You just have to make sure you don't boost past what is recommended for the compressor unit. Pulley size determines boost.

For a turbo you simply control boost with a boost control. You can go up and down whenever you want. There is no need to rebuild a turbo.

I run my turbo anywhere from 6-15 psi...and I can change that when I'm in the car, whenever I want.

New turbo technology reduces turbo lag significantly.
My current turbo is dual ball bear, water and oil cooled. Spins so damn easily that after you shut the car off the turbine wheel will still be spinning.

[eight_heads]

Originally Posted by SophieSleeps

Err not really.

If you have a supercharger and want more boost, you can change the supercharger's drive pulley to a smaller one. You just have to make sure you don't boost past what is recommended for the compressor unit. Pulley size determines boost.

For a turbo you simply control boost with a boost control. You can go up and down whenever you want. There is no need to rebuild a turbo.

I run my turbo anywhere from 6-15 psi...and I can change that when I'm in the car, whenever I want.

New turbo technology reduces turbo lag significantly.
My current turbo is dual ball bear, water and oil cooled. Spins so damn easily that after you shut the car off the turbine wheel will still be spinning.

i quess i should have elaborated, i meant the overall boost setting, you can change your boost alot more with a boost controller on a turbo than changing pulleys on a s/c... i too have dealt with both alot of various cars from '03 Mustang Cobras to turbo'd SOHC civics... in other words, turbos(on average) have higher overall boost compared to a s/c