QwaktastiK's 2014 SWP STI Hatchback Build Thread

[QwaktastiK]

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[GK1707]

Originally Posted by QwaktastiK

That is a phenomenal power band!

[werk]

nice numbers homie! but it'll be a blast when you get it back

[Karlot]

dang that powerband is awesome. what type of boost levels are you running?

[QwaktastiK]

Originally Posted by werk

nice numbers homie! but it'll be a blast when you get it back

Thank you. Very happy with that powerband. I’m a huge believer in cars are so much more than their peak numbers. What the curve looks like is much more impressive to me than big numbers with tons of lag. Can’t wait to drive it.

Originally Posted by Karlot

dang that powerband is awesome. what type of boost levels are you running?

Yeah man. Couldn’t be happier. The boost levels are presented at the bottom of the dyno sheet. 23psi for Intelligent mode. 28psi for Sport Sharp. Im assuming R/T felt better about the longevity of the build at a lower boost level than the 30psi a lot of others run this turbo on.




Regarding the power portion of this build...
I still want to thermal ceramic coat the downpipe. I’m sure it will have a minimal effect on spool, but probably a very positive effect of heat soak, both of which will only help in real world driving situations. The thermal ceramic coating will take a minimum of 3 weeks turnaround time with Swain Tech. But I’m in no rush to do that. More eager to get the car back and drive it than anything else at this point.

Vince, the owner and tuner at R/T Tuning pointed out to me that the two other builds I was modeling mine after used Virtual Dynos, not actual dynos when posting their dyno graphs. So I take those with a grain of salt. But my powerband looks very similar to Pet3r’s 2015 STI. At this point, I’m not sure if the cams neither hurt nor helped. But perhaps they helped offset the UEL headers a bit.

[Karlot]

Originally Posted by QwaktastiK

Thank you. Very happy with that powerband. I’m a huge believer in cars are so much more than their peak numbers. What the curve looks like is much more impressive to me than big numbers with tons of lag. Can’t wait to drive it.

Yeah man. Couldn’t be happier. The boost levels are presented at the bottom of the dyno sheet. 23psi for Intelligent mode. 28psi for Sport Sharp. Im assuming R/T felt better about the longevity of the build at a lower boost level than the 30psi a lot of others run this turbo on.




Regarding the power portion of this build...
I still want to thermal ceramic coat the downpipe. I’m sure it will have a minimal effect on spool, but probably a very positive effect of heat soak, both of which will only help in real world driving situations. The thermal ceramic coating will take a minimum of 3 weeks turnaround time with Swain Tech. But I’m in no rush to do that. More eager to get the car back and drive it than anything else at this point.

Vince, the owner and tuner at R/T Tuning pointed out to me that the two other builds I was modeling mine after used Virtual Dynos, not actual dynos when posting their dyno graphs. So I take those with a grain of salt. But my powerband looks very similar to Pet3r’s 2015 STI. At this point, I’m not sure if the cams neither hurt nor helped. But perhaps they helped offset the UEL headers a bit.

well i'm dumb haha. to be fair i didnt have my coffee till later in the morning haha. but yeah that does look to be an incredibly nice powerband. I was pretty set on a garrett turbo but i may have to look into this with that powerband lol.

[wuuusaa]

Originally Posted by QwaktastiK

I am! Brakes are next on the list. Once I get my car back. Lol. Prolly going to wait until Black Friday sales to see if there’s any type of discount for what I’m planning to order. After brakes, I plan to do a fair amount of Cusco chassis bracing.

The brake kits I want to order come with calipers, pads, rotors and lines. I’ll just have to see about dust shields. And they’ll be custom order for the specific color combination I want.

Haha smart man with the upcoming black friday sales!

What brand of kit are you going to run?

[Dalessio]

As everyone has mentioned, that powerband looks great. Driving that is going to be amazing!

[QwaktastiK]

Originally Posted by wuuusaa

Haha smart man with the upcoming black friday sales!

What brand of kit are you going to run?

Brembo Gran Turismo

Originally Posted by Dalessio

As everyone has mentioned, that powerband looks great. Driving that is going to be amazing!

Thank you! I’ll definitely give you guys my first impression once I drive it.

[ProdriveWRC]

[quote=QwaktastiK;46458830]Brembo Gran Turismo

Just a heads up, if you go with the 350x34 front rotors (which you should) you will not be able to run dust shields. I tried fitting APR carbon dust shields, but they will not clear.

[QwaktastiK]

[quote=ProdriveWRC;46458852]

Originally Posted by QwaktastiK

Brembo Gran Turismo

Just a heads up, if you go with the 350x34 front rotors (which you should) you will not be able to run dust shields.

Do the 2018+ STI front dust shields not clear?

[ProdriveWRC]

[quote=QwaktastiK;46458856]

Originally Posted by ProdriveWRC

Do the 2018+ STI front dust shields not clear?

With the 355x32 rotors, yes - 350x34 HD rotors, no. The HD rotors were made specifically for the GR chassis.

[ProdriveWRC]

If you're going with the 4-piston rear, you'll need to cut the backing plates as well.

[QwaktastiK]

[quote=ProdriveWRC;46458859]

Originally Posted by QwaktastiK

With the 355x32 rotors, yes - 350x34 HD rotors, no. The HD rotors were made specifically for the GR chassis.

Originally Posted by ProdriveWRC

If you're going with the 4-piston rear, you'll need to cut the backing plates as well.

Well that’s a bummer. With the dust shield fitment issue, the rear backing plate issue and the aftermarket tie rod clearance issue, I think I’m gonna lean towards the R205 brakes instead. I know the Brembo GT kit is slightly cheaper and you get more rotor for the money, but if that just causes fitment issues, I think I’ll be better off with the optional OE equipment on this one.

[Waddlz]

Your graphs mimic mine as well.

[QwaktastiK]

Originally Posted by Waddlz

Your graphs mimic mine as well.

Can’t see your rpms. Definitely a good looking powerband for sure. Can’t wait to drive my car for the first time. Ever consider trying a different dyno that’s more accurate of a 20% drivetrain loss? I know CO is a lot higher elevation than the Philly area.

[Chief_WRX]

Originally Posted by QwaktastiK

This looks like the perfect setup. Almost, 80whp difference between [i] and S#, great contrast between the two. I bet this is an absolute blast to drive. I have been putting together my build list over the last few months. The EFR7163 from Full-Race in the stock location with a TMIC is one of the leading candidates. Seeing how your graph looks darn near solidifies that choice.

[Waddlz]

Originally Posted by QwaktastiK

Can't see your rpms. Definitely a good looking powerband for sure. Can't wait to drive my car for the first time. Ever consider trying a different dyno that's more accurate of a 20% drivetrain loss? I know CO is a lot higher elevation than the Philly area.

yeah I'll have to find a better pic of the graph

but, this is on a dynomite dyno which stock STis will dyno right around 200 whp. I was also having wastegate issues, where I was running out of WGDC. car would spike 29 psi but fall flat to 25ish.

*EDIT* Found a better pic

[yamahaSHO]

Originally Posted by QwaktastiK

Can’t see your rpms. Definitely a good looking powerband for sure. Can’t wait to drive my car for the first time. Ever consider trying a different dyno that’s more accurate of a 20% drivetrain loss? I know CO is a lot higher elevation than the Philly area.

Do you mean uncorrected due to DA loss? This is wheel hp, so drivetrain loss has little use here. Pretty much all dyno's are going to default to corrected numbers, unless you're specifically looking for uncorrected. Additionally, what that dyno cannot account for up at 5,000ft ASL is the turbo running out of steam, compared to the same boost at lower altitudes.

This dyno is one of my favorite, most consistent dynos I've used (on par with DynoJet consistency). What do you think is inaccurate?

[QwaktastiK]

Originally Posted by Chief_WRX

This looks like the perfect setup. Almost, 80whp difference between [i] and S#, great contrast between the two. I bet this is an absolute blast to drive. I have been putting together my build list over the last few months. The EFR7163 from Full-Race in the stock location with a TMIC is one of the leading candidates. Seeing how your graph looks darn near solidifies that choice.

The Full Race kit is a great way to go. I know there were some people having issues with the internal wastegate, where they needed to run a dual port wastegate actuator to help hood boost up top. So definitely look into that if you go that route.

Originally Posted by Waddlz

yeah I'll have to find a better pic of the graph

but, this is on a dynomite dyno which stock STis will dyno right around 200 whp. I was also having wastegate issues, where I was running out of WGDC. car would spike 29 psi but fall flat to 25ish.

*EDIT* Found a better pic

Nice! Hell yeah man. Dyno graph great. Did you ever get your wastegate issues ironed out?

[yamahaSHO]

Yes, he did.

AFTER:


BEFORE: This is from the dyno above.




I had the Full Race kit with an EFR 6758 (it's the 05 STi on their site for the stock location kit) and I had to get a 2-port actuator and run the preload at 7mm. For a single gear pull starting at a lower RPM, it could build enough load to hit target.





On the strip, while shifting gears and not getting the load seen at a lower RPM, I ran out of WGDC and was shy of target boost. I was planning on putting a 4-port in, but sold the car before doing that.




My S2000 (also seen in the background of my picture on Full Race), I have an EFR 7064. I have a 2-port actuator with 7mm preload and I do have a hard time holding boost here at altitude. I picked up a 4-port to install. I only need the ability to hold 12 PSI flat as that's around 450whp. At 10 PSI, you can see the WGDC run up high and I still drop boost. This pull was 400whp with it tapering to 8ish PSI.

[QwaktastiK]

So doing a bit more research and consideration on brakes...

Initially I was planning on doing the Brembo Gran Turismo 6 piston fronts and 4 piston rears.
The Gran Turismo kit offers more for less when compared to the R205 brakes.
SpeedMasterLee did a great comparison of the GT6 vs the R205 fronts here:
https://forums.nasioc.com/forums/sho....php?t=2821654





But with ProdriveWRC letting me know that the HD kit doesn’t work with dust shields, rear backing plates and aftermarket tie rods, I’m leaning away from this kit since my car is a daily driver.

Next up is the R205 kit:


This kit is great for that OEM+ fit and finish. It also utilizes 6 piston front calipers and 4 piston rear calipers like the GT kit. The front rotors drop down from 350mm to 340mm when compared to the GT6 fronts, but allow the use of dust shields. And it’s still a big step up from the stock 326mm front rotors. It’s the same calipers that comes on the Type RA, Series Grey and Series White STI (and obviously the same as the 2018+ STI’s, only silver instead of yellow.) As stated, it was the stock brakes on the R205 STI, a special edition hatch in 2010 exclusive to Japan.
The rears are a step down as well from 345mm to 326mm when compared to the GT4 rears, but allow the backing plates and no fitment issues with aftermarket tie rods. And it’s still a step up from the stock 315mm rear rotors.
This is a great option that comes as a complete kit, but is the most expensive of the bunch.

Last up are the Type RA brakes:

The calipers can be purchased directly from Subaru and the rest of the parts can be purchased separately through any number of aftermarket suppliers that we’re all familiar with. They are the same front calipers and utilize the same rotor size as the R205, but the rears drop to 2 piston rears, but still larger than the 08-14 STI rear calipers. Lancaster did this upgrade on his ‘14 STI GV and is very happy with it.

As I said, I’m definitely leaning away from the Brembo GT kit at this point, but am trying to decide if I should do the Type RA front a rear calipers, or do the Type RA fronts with the R205 rears (4 piston).

[werk]

you ever thought about doing the c6 corvette brake swap? they're getting more affordable just like the ctsv calipers

[QwaktastiK]

Originally Posted by werk

you ever thought about doing the c6 corvette brake swap? they're getting more affordable just like the ctsv calipers

Nah. I’m not really a fan of when people put other cars brakes on their car. I prefer the brake kits that are specifically meant to go on a specific chassis.

[sayunkl]

Nice progress as always!