Accelerated Performance 2013 BRZ - FRS Turbo Kit Designing

[Visconti]

Originally Posted by Baker

So don u said that the disco was capable of 350hp, u also said 280whp was not ur highest u pushed out of it. Did u run out of turbo to keep pushing it higher? With a bigger turbo is there more to gain..?

There's more turbo , we just weren't chasing a number.

We wanted realistic whp numbers for a car with stock injectors.

10 psi is max for stock injectors.

I don't trust direct injection just yet, it needs to prove itself to me.

No one knows the limits of these motors yet and I don't plan on finding out until Don has his piston and rods on standby.

John

[chuy21]

Originally Posted by sierra

On the site I looked at the 2012 5.0 Mustang had 400bhp The GT had 440bhp and they weighed 3800Ibs = 9.5Ibs/bhp and 8.6Ibs/bhp

The GT 86 had a baseline of about 160bhp at the wheels from 200bhp at the flywheel and weighs 2670Ibs = 13.3Ibs/bhp

The GT 86 turbo had 280bhp at the wheels. 280 x 1.25 = 350bhp at the flywheel and call it 2700Ibs = 7.7Ibs/bhp

No contest!
Then there's the handling we mustn't mention.

The site you looked at is really off. The Mustang GT has 420 HP and the Boss 302 has 444hp. There is NO mustang 5.0 it's called the GT and it is also a pretty damn good track car so actually it would be a pretty good contest. Sorry for off topic.

[Don@Accelerated]

Originally Posted by Baker

So don u said that the disco was capable of 350hp, u also said 280whp was not ur highest u pushed out of it. Did u run out of turbo to keep pushing it higher? With a bigger turbo is there more to gain..?

Around 94-95% duty the injectors became unpredictable. John and I both wanted reproducable figures on stock fueling. This is why we stopped around 280whp or so. The turbo has more in it. The 2860 is more than capable of 350whp. Will it do it on this car, I don't know.

[2forme]

Don, you're making it really hard to ride out my warranty.... That torque curve is sexy...

[Don@Accelerated]

Truth is we can be far more aggressive with the torque, were just taking little steps to insure reliability.

[Don@Accelerated]

I should also mention that we have a dynojet. Its harder for us to produce the low end torque on the graph because I don't have the eddy current version. And we only do pulls in 4th gear. I don't like running the tires that fast on the dyno. I've had a tire blow out on me and it scares the hell out of me.

[wcbjr]

Originally Posted by Don@Accelerated

Around 94-95% duty the injectors became unpredictable. John and I both wanted reproducable figures on stock fueling. This is why we stopped around 280whp or so. The turbo has more in it. The 2860 is more than capable of 350whp. Will it do it on this car, I don't know.

Makes sense when looking at this graph.

[Visconti]

Originally Posted by wcbjr

Makes sense when looking at this graph.

Looks about right..

I have 4 different sets of 'Spray it Racing' injectors on their way to me right now for testing.

I also have what should be a drop-in replacement pump to try out.

-John

[Visconti]

Originally Posted by Philly

Let's get our cars to 400 hp Don, my stock tires haven't broken a sweat yet. Although they squeal from 2nd to 3rd now... I couldn't do that before.

I dont see that being a huge problem.

You'll need more octane.

Do you have e85 by you?

If not a Aquamist kit with failsafe wired to ECU would work great.

John

[wcbjr]

Originally Posted by Visconti

I also have what should be a drop-in replacement pump to try out.

-John

Standard Walbro 255lph high-pressure?


edit: hmmm, walbro may not be short enough to drop in

[Synack]

Originally Posted by sierra

On the site I looked at the 2012 GT Mustang had 420bhp The Boss had 444bhp and they weighed 3800Ibs = 9.0Ibs/bhp and 8.6Ibs/bhp

The GT 86 had a baseline of about 160bhp at the wheels from 200bhp at the flywheel and weighs 2776Ibs = 13.9Ibs/bhp

The GT 86 turbo had 280bhp at the wheels. 280 x 1.25 = 350bhp at the flywheel = 7.9Ibs/bhp

No contest!
Then there's the handling we mustn't mention.

The problem is that you are looking at printed magazine/website numbers. These numbers are generalized bhp numbers.

I was looking at true actual real life dyno numbers. The average 2012-2013 Mustang GT makes around 370whp. I've seen ~350-390whp. Also, the new Mustang's handling is very good.

You are confusing bhp and whp.

Whp (wheel horsepower / to the wheels) is what you see on a dyno where someone is in the car and flooring it while the wheels spin.
Bhp (break horsepower) is the horsepower an engine gets sitting OUT of the car (not attached to the car) on a motor dyno. These are the numbers that you will usually see when on auto websites and magazines.

Whp, car dyno


Bhp motor dyno


There is no such thing as bhp to the wheels. We just call it whp.

[ed209]

Sierra sounds like a de-facto magazine racer to me. Lol, where did you pull those figures from, your ass? My car weighs 3550 and a 25% drivetrain loss on a modern car really? Sounds like you should stick to video games and reading all the magazines at your local 7/11...

[Gen]

Originally Posted by ed209

Sierra sounds like a de-facto magazine racer to me. Lol, where did you pull those figures from, your ass? My car weighs 3550 and a 25% drivetrain loss on a modern car really? Sounds like you should stick to video games and reading all the magazines at your local 7/11...

No need to get all defensive there.

[sw20kosh]

Curious about what IAT's you were seeing with this kit at 10 psi. Are you able to see this while you are tuning John?

Might be able to increase the longevity of the factory internals with water/meth injection to cool things down?

Also, did you guys monitor oil temperature at all like Perrin? They claim that oil temps were getting really high on the dyno. I can imagine oil temps surging even more with a turbo. For anyone tracking this turbo kit, would it be advised to install an oil cooler?