New Turbo Kit Sneak Peek(Ptuning)

[Calum]

I really like this kit, but I've got to be honest, the shape of that curve looks like it would be hellish to drive. I asked about this the last time we saw a curve with that shape and was told that tuning wasn't finished. Is the tuning in the area between 3200 and 5000 rpm still not finished? Or is that the finalized tune?

[scraejtp]

What are your thoughts on the stock header with catalytic converter? At what power level should we be concerned with failure of the catalytic converter causing damage to the turbo with this setup?

[mnsayer]

So what to expect from the basic kit (without WMI) and regular pump gas is 300whp? This kit consists of?

What is the hottest temperatures it has been tested in?

Lastly when can we see some new on the road, in the car videos?

[ptuning]

Originally Posted by cmss2000

The only thing I would like to see improved is the TQ dip between 3200-4200 rpm. Do you think a GTX28 would fair any better there?

We have no immediate plans to test one at this time, but we will have no problems adapting the smaller turbo should a customer opt for it. It should improve the low end somewhat, but will likely be at the cost of top end power.

Keep in mind though that there is not really a torque dip, but rather a torque bump at 3.2K rpms. I want to say that there is no other forced induction system that can produce 200wtq at that rpm and still has the top end to crank out close to 300whp on pump gas at 6 psi on a DD Dyno.

Funny thing is I was debating on removing the 3.2K torque "bump" through the tune before posting the pic LOL. BTW, here is another common viewing perspective on the dyno chart. Looks a lot smoother.

[ptuning]

Originally Posted by Calum

I really like this kit, but I've got to be honest, the shape of that curve looks like it would be hellish to drive. I asked about this the last time we saw a curve with that shape and was told that tuning wasn't finished. Is the tuning in the area between 3200 and 5000 rpm still not finished? Or is that the finalized tune?

There is more tuning to be done, but at a later time. We've beat this car to death testing so many different things, including the WMI. We did get slightly better torque numbers in this 1K rpm range with the stock header, but outside of this 1k range, our 4-1 header definitely makes more power allowing for a usable 8K rpm redline. We'll experiment with a few tweaks to the header later on down the road, but overall, we are pretty satisfied with the results.

BTW, the header makes more power NA through most of the powerband with no loss anywhere, including the dip.

[ptuning]

Here is a comparison to show that a properly designed turbo system can make big torque everywhere, even off idle.

BTW, this comparison is in no way designed to put down other manufacturer's work as that is not our style. It only puts into perspective what people deem "instant torque", "linear torque", "linear power", etc. with different forced induction systems.

Blue - PTUNING
Green - Stock BRZ
Red - Centri-SC (raised rev limiter with no other mods)
Pencil - Upcoming Blower (converted KW to WHP and WHP to WTQ)

Note: We understand that these other numbers are preliminary, but we don't expect a sudden 40-90 WTQ gain throughout the powerband with future tweaks on pump gas in the near future. If need be, we'll make changes to the comparison if these numbers change. Either way though, take it with a grain of salt as it is just a quick and simple comparison of readily available data. :happy0180:

[Sonolin]

I think that dyno looks great. I'm not a fan of big turbos but 200wtq is plenty for around town driving. And when you ring it out it must get really crazy.

So... We'll say at least 470 flywheel horsepower, that's a 5.8 power to weight ratio with the stock curb weight! That's phenomenal.

Personally I think 400whp is a little too much for stock internals with track driving, but I guess we won't know the answer to that for another year or two at least.

[Sonolin]

Originally Posted by ptuning

Here is a comparison to show that a properly designed turbo system can make big torque everywhere, even off idle.

BTW, this comparison is in no way designed to put down other manufacturer's work as that is not our style. It only puts into perspective what people deem "instant torque", "linear torque", "linear power", etc. with different forced induction systems.

Blue - PTUNING
Green - Stock BRZ
Red - Centri-SC (raised rev limiter with no other mods)
Pencil - Upcoming Blower (converted KW to WHP and WHP to WTQ)

Note: We understand that these other numbers are preliminary, but we don't expect a sudden 40-90 WTQ gain throughout the powerband with future tweaks on pump gas in the near future. If need be, we'll make changes to the comparison if these numbers change. Either way though, take it with a grain of salt as it is just a quick and simple comparison of readily available data. :happy0180:

Cool graph! Good to see innovate in there.

[ptuning]

Originally Posted by scraejtp

What are your thoughts on the stock header with catalytic converter? At what power level should we be concerned with failure of the catalytic converter causing damage to the turbo with this setup?

We would recommend the stock header for low boost pump gas tunes, probably around 6-9 psi. At these power levels, still in the low 300's, we don't foresee problems. We're aware of someone having problems with the stock header on a built engine running 18+ psi of boost. This, however, is not something that we'd recommend, hence our co-development of a 4-1 header.

Also, making sure that the tune is good (not too rich for instance), right off the bat, would be ideal.

[ptuning]

Originally Posted by Sonolin

Cool graph! Good to see innovate in there.

We're not sure what you're talking about.

Just kidding. Honestly, we think the SC looks awesome and very design is very very clean. We look forward to installing one in the near future for customers. We're just not sure if people are anticipating tire shredding V8 torque at 2-3K rpms the INSTANT they jab the gas pedal, because this is not going to happen with ANY FI system for this engine, including ours.

[ptuning]

Originally Posted by mnsayer

So what to expect from the basic kit (without WMI) and regular pump gas is 300whp? This kit consists of?

What is the hottest temperatures it has been tested in?

Lastly when can we see some new on the road, in the car videos?

We will continue to test the car during summer months and log oil and water temps. We hope to get some track time as well. The location of the turbo will give the car the best chance of being able to make it in extremely hot climates.

We'll try to get some new on-road videos up soon.

[Sonolin]

Originally Posted by ptuning

We're not sure what you're talking about.

Just kidding. Honestly, we think the SC looks awesome and very design is very very clean. We look forward to installing one in the near future for customers. We're just not sure if people are anticipating tire shredding V8 torque at 2-3K rpms the INSTANT they jab the gas pedal, because this is not going to happen with ANY FI system for this engine, including ours.

Yea definitely understand that! Personally if I wanted a v8 I would've bought a v8. I'm just excited for innovate as it really is the ideal package for my use (california , easy to install, and good range of power for track use). I just hope it shows potential past the base 220whp dyno.

Anyway, your guys kit looks awesome and I'd be buying it if its possible to get carb legal, but thinking more seriously the only way I could "get away" with a turbo is something small and concise like AVO.

Idk though I've been trying to convince the (soon to be) wifey to move to FL, we do have 5ish years before we have to get this car smogged haha

[ptuning]

Originally Posted by Sonolin

Yea definitely understand that! Personally if I wanted a v8 I would've bought a v8. I'm just excited for innovate as it really is the ideal package for my use (california , easy to install, and good range of power for track use). I just hope it shows potential past the base 220whp dyno.

Anyway, your guys kit looks awesome and I'd be buying it if its possible to get carb legal, but thinking more seriously the only way I could "get away" with a turbo is something small and concise like AVO.

Idk though I've been trying to convince the (soon to be) wifey to move to FL, we do have 5ish years before we have to get this car smogged haha

That's totally understandable. No CARB exemption is a deal breaker for most Californians. Again, that's why we've always believed that no one product will fit everyone's needs.

Having lived in CA and FL, I have to say that CA weather is so much better (no humidity), but then again, owning a modded car there is definitely a nightmare.

[Sonolin]

Originally Posted by ptuning

That's totally understandable. No CARB exemption is a deal breaker for most Californians. Again, that's why we've always believed that no one product will fit everyone's needs.

Having lived in CA and FL, I have to say that CA weather is so much better (no humidity), but then again, owning a modded car there is definitely a nightmare.

Thanks for the heads up! Yea everybody says that. We'll be visiting FL sometime soon, hoping to see how bad it really is. I've been down there before but it was during Winter so it was really nice.