Accelerated Performance 2013 BRZ - FRS Turbo Kit Designing

[OrbitalEllipses]

Originally Posted by Coheed

recirc the wastegate back to the exhaust and it should make it very quiet.

Spool noise. Not blowoff noise, not wastegate venting. You still get that whine with aftermarket turbos, right? I remember when the GTX series came out Garrett made a big deal about them not being loud as fuck.

[Coheed]

Originally Posted by subatoy

yes but you are taking about COMPLETELY different engines. one that is meant to be turboed and one that it's not. Also NA Boxer engines don't take mods well, only forced induction will give you some solid results.

i do agree that the location of that intake is probably the worst unless people make a hoodscoop!

How does the design parameters determine whether gains are available with a cold intake charge? Because you lost me there.

Just because Subaru NA boxer engines don't take to mods well, doesn't mean that this one won't. I bet 200whp is well within reach of the majority staying NA, and it will come easily in comparison to earlier EJ motors.

Any engine can be turbocharged. These days, they are all practically set up to do double duty. NA or turbo. The biggest differences between a turbo engine and NA is the cam profile and compression ratio. Everything else remains largely the same. My comment was about the 28whp gains the AEM intake had on the MZR engine, by minimizing high temperature at the intake before the turbo. That point is completely relevant in this case.

[NickFRS]

I wont buy till there is a little more of a professional build out there. Waiting to see what this turns into down the road a couple months. Not saying this isn't professional but maybe you should play with different placements, different turbo's, and intercooler choices before hitting the market. This kinda just looks like a garage ebay turbo kit.

[Coheed]

Originally Posted by OrbitalEllipses

Spool noise. Not blowoff noise, not wastegate venting. You still get that whine with aftermarket turbos, right? I remember when the GTX series came out Garrett made a big deal about them not being loud as fuck.

The disco potato is relatively quiet. It's the 6-blade turbos that are loud when spooling. The GT3076r sounds like a loud turbine jet engine winding up.

The 7-blade turbos aren't really that loud. But the 11-full-blade setup on the GTX turbos is a bit quieter.

[Coheed]

Originally Posted by NickFRS

I wont buy till there is a little more of a professional build out there. Waiting to see what this turns into down the road a couple months. Not saying this isn't professional but maybe you should play with different placements, different turbo's, and intercooler choices before hitting the market. This kinda just looks like a garage ebay turbo kit.

I thought it was well-thought out, but to each his own I guess.

I like how the setup is designed around the factory manifold. This means a cat-less manifold should bolt right in without modification at all and open up a bit more. Add a cat after the turbo instead.

The piping is stupid simple, and the install looks clean. The intercooler is a bit small, but honestly you don't need much of an intercooler with lower pressure ratios. Even a really small intercooler can flow plenty air, it just can't cool the air charge when you throw 20+psi boost. I'm running air/water intercooler setup right now and the core is way small compared to a similar a/a setup, so flow isn't the issue. Just to set an example. But a larger heat sink takes longer to heat soak...

I would powder coat the pipes with a textured black finish, use black couplers, and go with a factory looking setup. Nothing flashy at all except the nice shiny front-mount.

[NickFRS]

I've never seen a build with the Intake right on top of the engine... I wonder what the intake teps get up to when the car is in traffic or stopped at a light....

[serialk11r]

Originally Posted by Draco-REX

Move the battery to the back, turn the intake pipe 180 degrees, and box in the area. You can draw air from the fender, or from the back of the hood (high pressure area) if you trim back the weather strip. More aggressive people could cut the fender behind the fake "vent" and turn it into a real intake.

About that, I wonder how well that actually works. There should be a separation bubble where the hood breaks abruptly for the space where the windshield wipers are, but then the air hits the bottom of the windshield and stagnates or something. Seems like you would be sucking air out of the separation zone, which I'm guessing is actually at comparatively "low pressure" but I might just be talking out of my ass.

[TOMIMOTO]

I haven't read through the whole thread, but shouldn't there be an air filter on the intake portion of the turbo? I bet it works as a good street sweeper.

[cobrabyte]

Originally Posted by TOMIMOTO

I haven't read through the whole thread, but shouldn't there be an air filter on the intake portion of the turbo? I bet it works as a good street sweeper.

There is. It sits behind the intake manifold. Look at the pics in this ginormous thread.

[TOMIMOTO]

Originally Posted by cobrabyte

There is. It sits behind the intake manifold. Look at the pics in this ginormous thread.

Ahhh.... I see. I just looked at the first couple pics real quick.

[Don@Accelerated]

Originally Posted by NickFRS

I wont buy till there is a little more of a professional build out there. Waiting to see what this turns into down the road a couple months. Not saying this isn't professional but maybe you should play with different placements, different turbo's, and intercooler choices before hitting the market. This kinda just looks like a garage ebay turbo kit.

I'm sorry you feel that way, but I stand behind allowing anyone to have there own opinion.

Consider this. This is the third design of the kit. I've had 3 different turbos, 3 different placements and settled on the V Band turbine Inlet set. Intercooler choice has little impact on performance if its near the target goal. The choice for this intercooler was driven from a no cutting perspective. Its capacity is up to 350hp. There is also a 600hp intercooler I have as well for the setup, but it requires the crash bar to be modified or sent to me to be modified.


I have larger turbo's i'm currently working on testing, but they are far to large for the stock engine!

-Don

[Don@Accelerated]

Originally Posted by subatoy

yes but you are taking about COMPLETELY different engines. one that is meant to be turboed and one that it's not. Also NA Boxer engines don't take mods well, only forced induction will give you some solid results.

i do agree that the location of that intake is probably the worst unless people make a hoodscoop!

The air intake could always be in a cooler placement. That is however the only place to put it without modification. I can't make people buy a hood. I can't make people cut the fender. Running it over the engine requires additional modification. For the little gain that could be had, I can't make the kit include unreasonable parts.

I can put the intake in a few other placements, but I can't expect the end user to have the type of tools required to make the modifcations possible.

If you do have the ability to make those changes, I'll sure make an available option to accomodate.

Remember this basic kit requires no cutting on the car!

[swift996]

Great choice on turbo and love the look of the car too.

Question (sorry with 66 pages, I didn't look through). Have you seen any increase in the transmission temp? Have you thought about placing some thermal wrap or a heat shield to help eliminate heat transfer from the turbo?

[Don@Accelerated]

Originally Posted by swift996

Great choice on turbo and love the look of the car too.

Question (sorry with 66 pages, I didn't look through). Have you seen any increase in the transmission temp? Have you thought about placing some thermal wrap or a heat shield to help eliminate heat transfer from the turbo?

The area the turbo sits gets plenty of airlow. I haven't collected any transmission temp data yet. I have driven the vehicle hard and then had it on the rack directly afterward. The external temp of the transmission wasn't any hotter than a normal spirited drive. Thats not to say the fluid is not hotter, but its not likely to have the case cooler and the fluid hotter.

The best option i've seen is the 2000 degree high temp ceramic coatings. They look great and functionally last much longer than the turbine wraps.

Don