Aiming for 400whp

[serialk11r]

Originally Posted by FreshFRS

Good points, i was basing off the engine being totally stock though, IF ECUTEK can figure out how to tune AVCS this could be really feasible with stock cams.

supercharger is my plan as i like throttle response over bigger dyno numbers. A rotrex C38-91 mounted between the A/C and alternator (flip HKS's design) and the stock intake manifold (with A/W integrated somehow) raised up (with custom pieces moulded to lengthen from the top of the inject placement to the bend to keep factory contours) as high as i need to run an intake duct under it routed the same way as Innovates supercharger (with a wider, shorter section under the actual manifold for consistent airflow. it would be only a custom silicon elbow from supercharger to throttle body. tuned at say 9psi (spinning about 65kRPM at redline) would be perfect IMHO :happy0180:

I am pretty sure ECUTEK can control the cam phasing system. It wouldn't hurt driveability if you just installed the new cam so that the intake opening points are the same though, since it wouldn't affect overlap.

I think you need a bigger cam to pull this off since the volumetric efficiency at high rpm is evidently quite good on the stock cam, and the duration is not all that high so it is likely near or at fully retarded position at high rpm for latest possible intake closing. A bigger cam would help bleed off volumetric efficiency. Say if you were planning on running 9 "traditional" psi (increasing mass airflow by 60%), a cam that closes 30 degrees later and opens a few degrees earlier (for pumping loss reduction, would need cam phasing remap) might reduce volumetric efficiency by 25% (probably an exaggeration) at the top end, so your absolute pressure goes from 1.65 bar up to something like 2.4 bar if you can maintain the same mass airflow rate, and now you're sitting in the centrifugal blower's maximum efficiency zone The intercooler now sheds twice as much heat off, so the final charge temperature is considerably lower.

With more modest power aspirations (such as 1.4x stock mass flow rate) then an Eaton TVS charger would be a bit more appropriate since the boost pressure will be about 0.8 bar, where the TVS is most efficient.

[FreshFRS]

Originally Posted by serialk11r

I am pretty sure ECUTEK can control the cam phasing system. It wouldn't hurt driveability if you just installed the new cam so that the intake opening points are the same though, since it wouldn't affect overlap.

I think you need a bigger cam to pull this off since the volumetric efficiency at high rpm is evidently quite good on the stock cam, and the duration is not all that high so it is likely near or at fully retarded position at high rpm for latest possible intake closing. A bigger cam would help bleed off volumetric efficiency. Say if you were planning on running 9 "traditional" psi (increasing mass airflow by 60%), a cam that closes 30 degrees later and opens a few degrees earlier (for pumping loss reduction, would need cam phasing remap) might reduce volumetric efficiency by 25% (probably an exaggeration) at the top end, so your absolute pressure goes from 1.65 bar up to something like 2.4 bar if you can maintain the same mass airflow rate, and now you're sitting in the centrifugal blower's maximum efficiency zone The intercooler now sheds twice as much heat off, so the final charge temperature is considerably lower.

With more modest power aspirations (such as 1.4x stock mass flow rate) then an Eaton TVS charger would be a bit more appropriate since the boost pressure will be about 0.8 bar, where the TVS is most efficient.

Rotrex C38-91 Peak Effiecency comes at a pressure ratio of ~1.8. or about 60Krpms (considering that as my torque peak) i'll hit a little over 65K at redline which is in the 73% zone. both The TVS and Rotrex have ~75% peak thermal efficiency in this area it's more of a toss up on having to space the manifold or have a custom one made. If Eaton's Next gen R1100 see's the light of day within the next year or so That will be the route i take (over 70% throughout the whole rev range. (2500-8000)

[Senna]

I just wish we didn't have to settle for less than an excellent turbocharger in a kit, No matter how driveable or power it has I wish I could use a GTX28r series turbo with UEL if not EL headers on 1.1 bars of boost at least, Not sure if stock motor can take it tho.. oh well. We'll get there when I find a BRZ in black around here for sale lol

[JDLAutoDesign]

Well you haven't seen our kit yet

[Tansey86]

Dream kit for this car, gtx3582r(in front of engine), big frontmount, UEL, V-banded, 3" single exit exhaust. Unless you can make your own kit, you gotta settle with what companies produce.

[JDLAutoDesign]

There are better pricing options than a GTX. Our kit is pretty modular so if you really want a 35R that will not be a problem

[Tansey86]

a 6262 will work just as well

[JDLAutoDesign]

Or a 6235

[Tansey86]

Originally Posted by JDLAutoDesign

Or a 6235

Based on what you have been saying im very interested in what you kit is going to look like, when can we hear details?

[JDLAutoDesign]

We will have more details in a week or so. Just need to dyno all our NA parts then we can wrap up the turbo kit. Check our website to see our work. We have been building high quality turbo kits for 10 years

[JoeBoxer]

Can't wait to see the twin scroll, I think a supercharger is more for me but all if them have one or more issues I don't like except maybe the litchfield.