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Old 11-21-2017, 07:36 AM   #11526
wrxstefan
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Quote:
Originally Posted by iNfEk View Post
That's good numbers already. What are your goals.
I was wondering if 440-450 is achievable on a safe tune? Don't really wanna go much higher than that.. also dont wanna lose too much reliability.
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Old 11-21-2017, 09:01 AM   #11527
08wrx440
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Sold a few things from my twinscroll setup... but I have EJ207 pistons and a VF37 lying around, 30k miles on it before I sent it out to get cleaned / billett wheel.. if anyone is interested. :-)
Happy Thxgiving Nasioc!
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Old 11-28-2017, 06:22 PM   #11528
Cobrakai
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Anyone with a V7 have significant piston slap on cold starts?

I'm hearing a faint knocking noise that's rather disconcerting (IE early stages of rod knock) when the motor is cold and I'm backing up or taking off in first, the noise goes away once the motor is completely warm and doesn't appear in any other gear or RPM range, just post clutch engagement + load.

My higher mileage EJ205 made a similar sound that Irvine Subaru informed me was piston slap, sound went away when the motor was warmed up as well.

Unfortunately I'm the only person in my immediate circle of friends that notices **** like this, two of whom have EJ207 motors.

And to top it off I've exceeded my 30 day "start up" warranty.

"The power of OCD compels you!"




Last edited by Cobrakai; 11-28-2017 at 06:30 PM.
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Old 12-08-2017, 05:56 PM   #11529
Master467
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Quote:
Originally Posted by wrxstefan View Post
I was wondering if 440-450 is achievable on a safe tune? Don't really wanna go much higher than that.. also dont wanna lose too much reliability.
You're pushing the little 2 liter at 450. People have done 500 but i'm sure they didn't drive with that tune much, or if they did, it didn't last long.

v7 pistons are good, but you can still ringland them. At the amount of boost you need to do that you will probably be close to lifting the head on stock head bolts.

I've always said, if you're content with 400whp, the 2 liters are much nicer daily driving cars than the 2.5's. Buddy has a stock 206 (commonly known as the EJ20TT, incorrectly, but commonly none the less) at 325whp 310ftlbs on E85 with a vf39 and billet comp wheel. Fun, daily drive able, spins tires when it's under 40 degrees F. If you need 400+ to have fun, put a built IAG/Outfront 257 in the thing and call it a day. Have your heads chamber matched and you don't need special hybrid pistons or anything. Head studs, then you have a motor that will hold 700 and you're limited by injector and turbo only.

That's only ~5 grand though, so send it.
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Old 12-08-2017, 06:19 PM   #11530
johnfelstead
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Quote:
Originally Posted by wrxstefan View Post
I was wondering if 440-450 is achievable on a safe tune? Don't really wanna go much higher than that.. also dont wanna lose too much reliability.
If you are talking flywheel power then that's achievable on the stock engine with the correct turbo and tune.
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Old 12-11-2017, 07:52 AM   #11531
Samurai Jack
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Quote:
Originally Posted by Cobrakai View Post
Anyone with a V7 have significant piston slap on cold starts?

I'm hearing a faint knocking noise that's rather disconcerting (IE early stages of rod knock) when the motor is cold and I'm backing up or taking off in first, the noise goes away once the motor is completely warm and doesn't appear in any other gear or RPM range, just post clutch engagement + load.

My higher mileage EJ205 made a similar sound that Irvine Subaru informed me was piston slap, sound went away when the motor was warmed up as well.

Unfortunately I'm the only person in my immediate circle of friends that notices **** like this, two of whom have EJ207 motors.

And to top it off I've exceeded my 30 day "start up" warranty.

"The power of OCD compels you!"



https://www.youtube.com/watch?v=L4VvO1MZYzA
Can't hear a thing on that video. That engine is the quietest I have ever heard.
Did you have the sound on when you recorded
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Old 12-11-2017, 08:46 AM   #11532
Bansheeboy11
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Quote:
Originally Posted by 08wrx440 View Post
Sold a few things from my twinscroll setup... but I have EJ207 pistons and a VF37 lying around, 30k miles on it before I sent it out to get cleaned / billett wheel.. if anyone is interested. :-)
Happy Thxgiving Nasioc!
If your going rotated i have a GT3076 im looking to part ways with, ill trade for the VF37 plus cash if your interested
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Old 12-11-2017, 04:18 PM   #11533
Cobrakai
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Quote:
Originally Posted by Samurai Jack View Post
Can't hear a thing on that video. That engine is the quietest I have ever heard.
Did you have the sound on when you recorded
Haha yes, it's difficult to capture it with the iphone.

Going to keep enjoying it for the time being and if something develops down the line oh well, I've always wanted to tear one of these apart.
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Old 12-11-2017, 08:12 PM   #11534
jdm05
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Hahaha true good luck and have you had an oil analysis yet to see how he motor is doing? Black stone?
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Old 12-16-2017, 04:26 PM   #11535
GarrettPlusBugeye
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Fellow Ej207 owners! I require some quick assistance! My gray plug on my engine was damaged when the engine was pulled, I don't know the layout to repin the plug. Here's a picture of it.

I'm also located in Oregon and interested in buying a 3" JDM downpipe from someone/trade for my Cobb 3" USDM downpipe. Thanks all!
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Old 12-16-2017, 08:36 PM   #11536
ether947
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Quote:
Originally Posted by GarrettPlusBugeye View Post
Fellow Ej207 owners! I require some quick assistance! My gray plug on my engine was damaged when the engine was pulled, I don't know the layout to repin the plug. Here's a picture of it.
[IMG]https://i.imgur.com/A4VzmTq.jpg[IMG]
I'm also located in Oregon and interested in buying a 3" JDM downpipe from someone/trade for my Cobb 3" USDM downpipe. Thanks all!
Hard to tell from the angle but it looks like this one.
https://www.iwireservices.com/produc...ock-receptacle
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Old 01-04-2018, 01:16 PM   #11537
86Dreams
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Whats the soonest you twin scroll guys can spool max boost? I was able to get 25psi at 3300 RPM. Im still refining this but i was surprised to see so much so soon.
https://i.imgur.com/v3sDcVF.png
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Old 01-04-2018, 01:33 PM   #11538
ether947
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Quote:
Originally Posted by 86Dreams View Post
Whats the soonest you twin scroll guys can spool max boost? I was able to get 25psi at 3300 RPM. Im still refining this but i was surprised to see so much so soon.
https://i.imgur.com/v3sDcVF.png
I hit full boost (18 psi) by 3800 RPM in 3rd gear (5MT). I noticed your pull was in 4th gear, do you have a 5MT or 6MT?
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Old 01-04-2018, 02:05 PM   #11539
86Dreams
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Quote:
Originally Posted by ether947 View Post
I hit full boost (18 psi) by 3800 RPM in 3rd gear (5MT). I noticed your pull was in 4th gear, do you have a 5MT or 6MT?
its a 5 speed.
Thats a good point, it might just be the amount of time that the turbo is spooling.
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Old 01-05-2018, 07:01 AM   #11540
Titter
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my max is 20psi and i see it just before 3000rpm (maybe 2900?)

custom built 4EAT, stock VF36
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Old 01-05-2018, 01:43 PM   #11541
ether947
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Quote:
Originally Posted by 86Dreams View Post
its a 5 speed.
Thats a good point, it might just be the amount of time that the turbo is spooling.
There's a higher load from the engine in 4th gear (it's also slightly overdriven), so the turbo spools faster. Most people do pulls in 3rd. Do you have any 3rd gear pulls? I'm curious to see how it performs.

Quote:
Originally Posted by Titter View Post
my max is 20psi and i see it just before 3000rpm (maybe 2900?)

custom built 4EAT, stock VF36
I wish I could parse this (other than extreme jealousy) as I've never driven an automatic turbo car. I'm assuming that's in third gear on the 4EAT?
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Old 01-05-2018, 08:28 PM   #11542
Titter
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not sure which gear actually. dont have a graph from a dyno pull. just from me mashing my foot down and then looking at my boost gauge then rpm. its either 2nd or 3rd. prolly 2nd. thats where i spend most of my time. (i rarely drive in D)

also since in relying on my eyes and reflexes, i might be off a wee bit.
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Old 01-08-2018, 05:50 PM   #11543
D-Rodman
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Anybody running a vf48 on a ver 7 and want to share dyno graph ?
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Old 01-09-2018, 09:18 AM   #11544
08OBS
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My most recent oil analysis. Very happy with how these are turning out.
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Old 01-09-2018, 01:41 PM   #11545
Micro
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Quote:
Originally Posted by Gigs90 View Post
Easily , The stock STi clutch will handle almost anything except repeated hard launches.
I asked a few months ago if a dealer clutch could handle the 207... 250 miles into my break in period of the 6mt dealer clutch, tried revving it past 4k rpm to ‘test it’ and it slipped. (I instantly let go of the gas)

I’ve been babying the clutch since I got it changed. Local driving. Nice and easy.

Dealer clutch. Competition Clutch steel LW flywheel. Installed by a reputable tuner shop (which I contacted. They told me to bring it by)

Any thoughts?

Last edited by Micro; 01-09-2018 at 01:42 PM. Reason: Misspelled a few things.
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Old 01-09-2018, 08:25 PM   #11546
Gigs90
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Quote:
Originally Posted by 08OBS View Post


My most recent oil analysis. Very happy with how these are turning out.
That looks way better

Quote:
Originally Posted by Micro View Post
I asked a few months ago if a dealer clutch could handle the 207... 250 miles into my break in period of the 6mt dealer clutch, tried revving it past 4k rpm to Ďtest ití and it slipped. (I instantly let go of the gas)

Iíve been babying the clutch since I got it changed. Local driving. Nice and easy.

Dealer clutch. Competition Clutch steel LW flywheel. Installed by a reputable tuner shop (which I contacted. They told me to bring it by)

Any thoughts?
Could be the flywheel , Its weird cause I have had multiple friends track their cars with the stock STi clutch with no issues.
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Old 01-10-2018, 09:04 AM   #11547
Micro
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It’s kimda frustrating after spending over $1000 to have this thing not grabbing. Ugh.

I’ll post an update after I bring it back to the shop next week.
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Old 01-10-2018, 10:08 AM   #11548
Samurai Jack
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Quote:
Originally Posted by Micro View Post
I asked a few months ago if a dealer clutch could handle the 207... 250 miles into my break in period of the 6mt dealer clutch, tried revving it past 4k rpm to Ďtest ití and it slipped. (I instantly let go of the gas)

Iíve been babying the clutch since I got it changed. Local driving. Nice and easy.

Dealer clutch. Competition Clutch steel LW flywheel. Installed by a reputable tuner shop (which I contacted. They told me to bring it by)

Any thoughts?
Just how much power and torque are you running w/your EJ207?
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Old 01-10-2018, 11:01 AM   #11549
Micro
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Originally Posted by Samurai Jack View Post
Just how much power and torque are you running w/your EJ207?
basically stock V7. nothing to brag about.
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Old 01-10-2018, 01:19 PM   #11550
Samurai Jack
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If your 207 is basically stock, then the OEM STi clutch should easily handle the power level.

Could be a failing clutch - it happens, even when new
Could be some kind of contaminate got on the clutch / flywheel
Could be how you have been driving - no one was there to see how you drive
Could be a failing or wrong TOB.

Has this been slipping since the install or is it something that just popped up very recently?

I had something similar on a different car.
Car had an aftermarket clutch installed by a shop. 10 days after the warranty ( 90 days ), the clutch collapsed.
This time I took the car to the dealer and had them install an OEM HP clutch. From the moment I left the Dealer, the clutch was slipping like you describe.

Took it back the next morning and they spent all day trying to figure out what was wrong. They checked everything. Clutch, flywheel, TOB. They measured everything again. They checked with the machine shop who resurfaced the flywheel. They installed a whole new clutch.

I was standing there with the Tech the whole time so I know what was being done. Still the same.

So, I asked them what TOB they installed. Seemed like silly question, but ...

As it turned out, since the aftermarket clutch had a short TOB, so they just installed a short TOB.
Problem was, the OEM clutch required a long TOB.

Once they fixed that, problem solved.

Last edited by Samurai Jack; 01-11-2018 at 07:31 AM.
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