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Old 04-15-2014, 06:02 PM   #26
chanomatik
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ISC coil overs! Nice.
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Old 04-15-2014, 07:16 PM   #27
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Quote:
Originally Posted by JSC Speed View Post
As a driver I like NJMP and Millville just fine, but if I was just hanging around...WGI wins everytime...at least in WGI my wife can keep herself occupied at wineries and the falls. If I didn't have a company to run and bills to pay...and an already overbooked schedule I would come up. In other news we just got some good news from one of our favorite suspension brands, ISC Suspension that they have confirmed fitment and will have a part number available this evening...so I will have coilovers on early next week.
Confirmed fitment as in the coilovers from the previous generation fit or they developed a new one?
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Old 04-15-2014, 07:27 PM   #28
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Originally Posted by Scoob1318 View Post
Confirmed fitment as in the coilovers from the previous generation fit or they developed a new one?
This is a good question that I've had since the 2012 Impreza came out regarding strut and coil over fitment. Curious to know if this really is an entirely new chassis.
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Old 04-16-2014, 08:18 AM   #29
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Originally Posted by JSC Speed View Post
Here are few shots from at NJMP...The T6S has a bit of contoured spoke shape that protrudes a little bit, but not much. There isn't any real poke to speak of though. Tons of room on the inside. I'll be putting 18x9.5 +40 Gram Light 57Xtremes with 255/35-18 Dunlop ZIIs tomorrow night. There should be enough room at the strut to clear--during a conversation with Jeff Perrin yesterday he said he fit the same size wheel with 265s on their otherwise stock WRX.


Thanks! I think that 17x8.5 or 17x9 et50 would be perfect size for me. Unfortunately there are only one or two wheels that exist in that size. There are lots of 18x8.5 options, and lots of 17x9 options. But I don't really want 18s, and I don't really want to go down to a 45 offset or below. I want the tires to stay in the fenders, and I don't want to sacrifice any steering feel.
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Old 04-16-2014, 09:54 AM   #30
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Quote:
Originally Posted by Scoob1318 View Post
Confirmed fitment as in the coilovers from the previous generation fit or they developed a new one?
Quote:
Originally Posted by chanomatik View Post
This is a good question that I've had since the 2012 Impreza came out regarding strut and coil over fitment. Curious to know if this really is an entirely new chassis.
08-14 STI coilover fit, but there are some minor modifications that need to made in order to install them....ISC will have a 2015 WRX specific part number and have specific components made, but their 08+ STI coilovers will work. Obviously spring rates and wheel rates are going to be different on the 15 WRX than on the 08-14 STI, but if you are just after a lower stance, you can get by with the 08-14 STI rates.

We are going to play with spring rates a bit to see what works for our needs.
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Old 04-16-2014, 01:06 PM   #31
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any idea of the weight of the 17x9 T6S wheels?

Edit: found out from Bryce at OAKOS. He says 21lbs for 17x8 for anyone interested.

Last edited by jonoc4; 04-16-2014 at 01:24 PM.
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Old 04-16-2014, 01:18 PM   #32
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08-14 STI coilover fit, but there are some minor modifications that need to made in order to install them....ISC will have a 2015 WRX specific part number and have specific components made, but their 08+ STI coilovers will work. Obviously spring rates and wheel rates are going to be different on the 15 WRX than on the 08-14 STI, but if you are just after a lower stance, you can get by with the 08-14 STI rates. We are going to play with spring rates a bit to see what works for our needs.
That's great news. Thank you for sharing
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Old 04-16-2014, 01:30 PM   #33
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any idea of the weight of the 17x9 T6S wheels?

Edit: found out from Bryce at OAKOS. He says 21lbs for 17x8 for anyone interested.
The 17x9 is just under 23lbs. The 18x9.5 Gram Lights that are going on tonight are only 21lbs (but the 265/35-18 tires that are going on weigh a good bit more than the OEM 235/45-17s).
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Old 04-16-2014, 01:34 PM   #34
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Can we get a side profile shot with the wheels? I want to check the poke factor. Any idea how much inner clearance do you have? I'm guessing lots...
offset calculator says 3mm less clearance on the inside and they extend 23mm outward.

factory wheels are 17x8 55 offset
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Old 04-16-2014, 01:37 PM   #35
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The 17x9 is just under 23lbs. The 18x9.5 Gram Lights that are going on tonight are only 21lbs (but the 265/35-18 tires that are going on weigh a good bit more than the OEM 235/45-17s).
awesome. thanks. ya 265 tires are going to weigh a lot.
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Old 04-18-2014, 10:26 AM   #36
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The JSC Speed 2015 WRX #jscredwrx and a 2015 STI from Subaru of America are on display, side by side at the blipshift Apex Everything NYC pop-up store.

We also have free goodie bags for the first 20 folks who show up to the Subi meet up on Saturday.
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Old 04-18-2014, 08:54 PM   #37
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Originally Posted by JSC Speed View Post
The JSC Speed 2015 WRX #jscredwrx and a 2015 STI from Subaru of America are on display, side by side at the blipshift Apex Everything NYC pop-up store.

We also have free goodie bags for the first 20 folks who show up to the Subi meet up on Saturday.
This thread needs more... Gram lights.

Edit: Nevermind found it on instalame. Those tires look enormous with that bright red WRX.

Last edited by Its Twix; 04-18-2014 at 09:00 PM.
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Old 04-18-2014, 09:06 PM   #38
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There will be a sizeable post on Monday documenting exciting things like Perrin CBE install, Gram Light fitting, changing oil, checking tire pressures, and what kind of car wash soap we used for the #jscredwrx's first bath.

*Actual content may vary. No car washing or oil changes were chronicaled by JSC Speed this week; however tire pressures were checked.
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Old 04-18-2014, 09:35 PM   #39
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Quote:
Originally Posted by JSC Speed View Post
There will be a sizeable post on Monday documenting exciting things like Perrin CBE install, Gram Light fitting, changing oil, checking tire pressures, and what kind of car wash soap we used for the #jscredwrx's first bath.

*Actual content may vary. No car washing or oil changes were chronicaled by JSC Speed this week; however tire pressures were checked.
Looking forward to this! I hope you guys had the chance to get a few sound clips of the exhaust as well. Debating whether or not to order it so it's here when my car arrives.
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Old 04-18-2014, 09:39 PM   #40
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Quote:
Originally Posted by JSC Speed View Post
There will be a sizeable post on Monday documenting exciting things like Perrin CBE install, Gram Light fitting, changing oil, checking tire pressures, and what kind of car wash soap we used for the #jscredwrx's first bath. *Actual content may vary. No car washing or oil changes were chronicaled by JSC Speed this week; however tire pressures were checked.
Very interested in the Perrin CBE thoughts and a video clip would be great!
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Old 04-19-2014, 12:19 AM   #41
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Awesome news, hope the car sounds like my old GR with elheaders
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Old 04-19-2014, 10:03 AM   #42
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The base WRX sounded very good with the factory equipped exhaust system. Subaru left out the mid-pipe resonator (there is a resonator in the downpipe just before it meets the mid-pipe) so volume was decent--just enough dBs to let you know it was there but not enough to wake the neighbors...until you started driving, then: Total silence. Wind noise and sound deadening made it impossible to hear what the engine was doing. No intake noise. No exhaust note. If you have the windows up or the radio on exhaust noise was imperceptible. On the race track not being able to hear the exhaust was odd and made driving a little trickier. I really had to monitor the tach to see where I was rather than relying on my ears to determine shifting points. I'm sure it didn't help that I was very new to the car and still learning its language.

The stock components are well made and really light weight, coming in at 38lbs for the 2.5" mid-pipe and two mufflers (2.0" inlets from mid-pipe). The mid-pipe hanger has moved ever so slightly from previous gen cars, but there are still five of them. Undo the six bolts and the five hangers and the OE CBE is off. Super easy. The Perrin Brushed Steel, Quad Tipped Catback PSP-EXT-347BR is very robust--you all know this already, it's been around for several years now. Install is easy and the same as on the 08-14 cars, except getting the alignment right is a little trickier thanks to that one relocated hanger. Because the Perrin is 50lbs I opted to swap out the OEM rubber hangers with Cobb 511312 Urethane Hangers. The Cobb hangers are firmer so the added weight won't induce premature sagging. Pix below are of the various exhaust components on a scale....missing is the OEM mid-pipe because I had to weigh myself, then weigh myself while holding the mid-pipe so I wasn't able to get a shot of the scale... trust me...the OEM mid pipe is right at 12lbs.


The Perrin CBE works on the 15 WRX and STI because of the three slip joints and the shape of the y-pipe. The slips allow for a decent range of adjustment and fine tuning so you can get the four tips centered in the openings. So, for install leave all of the slip joints and the one v-band loose. You need to remove the OE donut gasket from the downpipe to mid-pipe joint and replace it with a Perrin-supplied flat gasket...you can snug this junction up completely since there is no adjustment gained by leaving it loose. The second half of the mid-pipe attaches using a slip joint--make sure you put the clamp on before slipping the mid-pipes together and you consider the angle and direction you put it on with...this one comes really close to the driveshaft so if you do it wrong you will have a bad time. There is a hanger at the back end of the mid-pipe near the v-band, attach the hanger to the car then to the pipe.

After the two halves of the mid-pipe are up we moved on to the mufflers. There are two hangers per side and the one on the outside is a bit of a pain to reach, even on a lift. Again, we put the hangers on the car then hung the mufflers from them. Don't worry too much about where the tips hang yet. The Perrin y-pipe has a slip joint on either tail of the y—Perrin ships them all slipped together so you need to undo them and put the clamps on then slip them back together before putting the y-pipe in place between the mid-pipe and mufflers. Again, consider the angle and direction of the clamps before suring them up later on--don't bother tightening them yet. With the slip clamps in around the joints put the y in place. We snugged up the v-band first leaving it loose enough that we could rotate as needed the put the 2"gaskets in place between the y and mufflers. Tighten the four bolts (two per side). Now comes the tedious part of aligning and tightening.

We worked positioned the tips where we wanted them--centered in the openings and sticking out just slightly--then tightened the slip clamps around the y tails, then v-band , leaving the mid-pipe slip for last. It took a few times to get this right. Most difficult was getting the right side muffler in the right place as it wanted to hit the car at the forward edge. Took a bit of manipulating of the slips but it came out really nice.

I've now got 200ish miles on the Perrin CBE and can say the tone and volume is really pleasant...Perrin has a resonator in the mid-pipe, I imagine a system without this would be quite loud. No highway drone. No rasp. Even with the factory elh there is enough rumble to let you know there's a boxer under the hood. We also swapped the OEM intake filter for the Perrin filter. No noticeable performance gains from the intake and exhaust. But, the sounds are so much better. We will be going to a dyno in the week or so to get some numbers (we'll swap exhaust and intake back to stock for a baseline).

Last edited by JSC Speed; 04-21-2014 at 02:23 PM.
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Old 04-19-2014, 10:19 AM   #43
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While in NY for the NYIAS and blipshift's Apex Everything party on Thursday night I had the chance to talk to the North East Subaru field service engineer. We had a long conversation about the new WRX's FA20DIT and how easily (or difficult) it will be to tune. The ECU has a write only feature that will record data to a permanent file, much like how Porsche does, recording incidents such and max rpm, speed, engine temps, boost, etc. Basically, if you abuse the car Subaru will know. Passwords to reset this info are VIN specific and only given to engineers on a case by case basis.

The ECU also has some very sensitive knock sensors meaning it will pull timing very quickly if needed to protect the motor. I felt this at the track. Boost was being limited and performance hampered due to running 91 octane instead of 93. Oil starvation shouldn't be an issue however thanks to oil scavenging. Think of it like a poor man's dry sump...this is similar to what Porsche did with old air cooled turbo motors. Hopefully the Subaru engineer is able to make it back to tonight's Subi meet at blipshft. GTSpec and Ray's wheels might also stop over.
Some of the Jalopnik and Yahoo! Auto editors commented that they liked both the WRX and STi...Travis from Jalop said the new STI was the best car he has driven so far this year. They also complimented us on how much better the Gram Lights 57xtremes looked on the car compared to the stock atrocities, though we all agreed that the car needs to sit an inch or so lower to look right.

Last edited by JSC Speed; 04-21-2014 at 02:15 PM.
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Old 04-19-2014, 05:37 PM   #44
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...until you started driving, then: Total silence. Wind noise and sound deadening made it impossible to hear what the engine was doing. No intake noise. No exhaust note. If you have the windows up or the radio on exhaust noise was imperceptible.

I've now got 200ish miles on the Perrin CBE and can say the tone and volume is really pleasant...perrin has a resonator in the midpipe, I imagine a system without this would be quite loud. No highway drone. No rasp. Even with the factory elh there is enough rumble to let you know there's a boxer under the hood.
My thoughts exactly. So strangely quiet. Though I traded in an 05 2.5RS with a UEL header-back system. The '15 sounds like a Prius in comparison. Your comments sold me on the Perrin. Just ordered! Will GoPro it ASAP!
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Old 04-19-2014, 11:25 PM   #45
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Old 04-21-2014, 12:01 AM   #46
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Old 04-21-2014, 11:50 AM   #47
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Subbed!
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Old 04-21-2014, 05:34 PM   #48
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Subscribed, unsubscribed... Subscribed, unsubscribed... Subscribed, unsubscribed... Subscribed. Damn OCD!
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Old 04-21-2014, 08:48 PM   #49
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What is the latest on the suspension for the WRX?
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Old 04-21-2014, 09:14 PM   #50
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We have a set of 08 STI ISC coilovers on the way to us this week. We know they will fit with minor modifications we will document the install and post what needs to be modified.

We know the STI that is in the Mackin booth at the NYIAS is on 08 STI coilovers by KW.
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