Accelerated Performance 2013 BRZ - FRS Turbo Kit Designing

[Don@Accelerated]

Originally Posted by WingsofWar

what kind of powerband gains are you targeting Don? Care to share your chosen compressor map?

I ask, because at the moment im talking with lots of turbo builders for this particular engine..and everyone's thoughts are on very far ends of the spectrum. It would be nice to know that someone out there is trying to build a purchasable turbo kit, built, priced, and proven for the average blue collar Joe, which the FRS-BRZ target market was originally made for.

Id be a shame to see shops miss the mark on this car because its easy to get caught up on the idea that customers want POWER and they will pay a premium for it. When i fear this isn't the case for this particular car.

Anyway, keep up the good work! cant wait to see more pictures, especially your chosen turbo location and compressor outlet clocking solution.

The turbo in the picture is a Garret GT28R. Its considered to be the "Disco Potato" line. If this turns out to be to laggy i'll switch to something smaller. In this particular size we can upgrade from 350hp capable to nearly 450hp with some of the new GTX lined turbos. However I believe that the standard GT will work far better at lower boosts than the GTX line. Same as the EFR stuff. Just requires you to work them to hard to get the results. I don't think this kit will be to far out of reach. I'm going to use the stock header. So no crazy expenditures there. I'm planning on fitting this behind the engine. Front mount intercooler is only up to 350hp at this time w/out cutting. Sure we'll make larger turbo kits, but I dont think this car needs more than 350hp. Its 160hp now and a blast to drive. I can't imagine what doubling the power to the ground will be and having a flatter torque curve from 3k-4k and rising on up. It will be some sort of a monster. We have 130-140ft lbs now peak. And no where near that in the torque valley. We should be able to get north of 200ftlbs in the valley I would think.

Now for those people who want 600hp, No problem, I can do this all the same, but we need to start somewhere and figure out whats going to work reliably for the time being.

-Don

[sirus]

[sdiver68]

Originally Posted by Don@Accelerated

Now for those people who want 600hp, No problem, I can do this all the same, but we need to start somewhere and figure out whats going to work reliably for the time being.
-Don

I think there would be a market for a very modest approach...250whp, flat TQ curve, reliable as hell for track and/or Auto-X use and proportianally lower cost than the more ambitious kits.

[Nezz]

Really nice to see that this is focussing on "no cut" for a basic kit. That's very important for us Australians, the moment we take a saw to something we have to get it engineered (prices go from $1000 upward, realistically). Also, most engineers don't seem to know that much about cars that don't involve enormous V8s. Trying to find one that'll approve little turbo projects is hard.

[FT-86GOD]

Originally Posted by Don@Accelerated

Now for those people who want 600hp
-Don

Yes please.... Subscribed...

[Kuzuri]

watching this

cant wait to see the finished product!

[jedibow]

Originally Posted by Don@Accelerated

I have something that I'm working with. I'm really not going to take any control from the ecu. The direct injection and the port injection work with each other and I see many issues with trying to fool with them. I'm just taking it one day at a time. Honestly I would love to just remove that direct injection bolshit!

Larger port injectors? and maybe an FPR?

Or are you planing on running a piggyback? My concern with running a turbo on this car isn't the fuel (mostly due to direct injection) but ignition timing, how do you plan to address the ignition timing?

If it is classified I understand...

Thank you,

G

[jedibow]

Originally Posted by Don@Accelerated

Picture of the peashooter chosen to do the job.

This is a Dual Ball Bearing Garrett Unit. Comes w/ the internal gate, but dont' know that it will end up that way.

-Don

That wouldn't be a GT-2871 would it

[jedibow]

Originally Posted by Don@Accelerated

The turbo in the picture is a Garret GT28R. Its considered to be the "Disco Potato" line. If this turns out to be to laggy i'll switch to something smaller. In this particular size we can upgrade from 350hp capable to nearly 450hp with some of the new GTX lined turbos.

-Don

There will not be any lag at all, I had one of these on my sentra, and I reached full spool by 2800 RPM's around 16psi, transient response was amazing, and top end pull was decent.

Good choice on the turbo! the EFR line would be to large (read no useable boost until past 4000 RPM) and they do not like small boost pressure ratios, until we have a bottom end option to say run 20 psi plus they shouldn't be considered...

G

[Don@Accelerated]

That particular turbo is a GT2860RS. The smaller of the two.

[Don@Accelerated]

I'm currently working on that. Ill make it known when its sorted out.

-Don

Originally Posted by jedibow

Larger port injectors? and maybe an FPR?

Or are you planing on running a piggyback? My concern with running a turbo on this car isn't the fuel (mostly due to direct injection) but ignition timing, how do you plan to address the ignition timing?

If it is classified I understand...

Thank you,

G

[xcelir8brz]

Current AP customer, now subscribed. So, Don, are you saying, this will be 30WHP gain on top of your exhaust system or with it?

[slow_frs]

Originally Posted by jedibow

There will not be any lag at all, I had one of these on my sentra, and I reached full spool by 2800 RPM's around 16psi, transient response was amazing, and top end pull was decent.

Good choice on the turbo! the EFR line would be to large (read no useable boost until past 4000 RPM) and they do not like small boost pressure ratios, until we have a bottom end option to say run 20 psi plus they shouldn't be considered...

G

?? efr are instant spool people switch their sc colbalts to efr turbos and make 20 psi all day instantly, and no im not a cobalt fan i dispise them

[jet86]

If the disco spud is too laggy I'd suggest to go with the GTX2863r. A size smaller but more efficient and same hp rating. I highly rate the new GTX turbos. All I ever use these days.