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Old 07-08-2017, 10:34 PM   #1
RicersWetDream
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Member#: 245581
Join Date: Apr 2010
Chapter/Region: MWSOC
Location: Marshall, MI
Vehicle:
2009 WRX
2014 Forester XT

Default Quarter Mile: 2009 WRX Stock Block & Turbo Goes 12.25 @ 111 mph

Event: Quarter Mile
Location: Lapeer International Dragway, Lapeer, MI
Ambient Temp: 75*
Elevation: 856'
Weather: Sunny, low humidity
Track and Conditions: Asphalt, not great prep
Tires: Dunlop Direzza Z1 Star Spec 235/40/17

Car: 2009 WRX
Tuner: Tank in Omaha, NE base map, me starting to tweak it
Transmission: 2015 STI Six Speed
Target Boost: 20.5 psi
Target AFR: 12.0
Fuel: E85
Engine/Power Modifications: Full bolt on's
Driveline Modifications: STI Six Speed with ACT HD clutch & streetlight fly, DSS CF driveshaft, DSS rear axles
Suspension Modifications: OEM w/ Perrin sways
Other Modifications: Lots of weight removal, before the six speed the car came in at 2799 with a half tank. I figure it was around 3000 today with me in it and a half tank (I'm only 140).

This was my first time at the 1/4 track so I'm pretty pleased with how the day went. Just swapped in the six speed earlier this year and got through the break in period on the clutch before I took it to the track. Each pass was better than the one before and I was able to get my 60' into the 1.6 range on street tires and crap prep. First two passes were really just shake down passes but still managed upper 12's.

Not going to lie I had a thought of trying to break into the 11's but I just don't think my MPH is there. The car is tuned pretty conservatively at 20.5 psi but I gave it hell off the line on my last pass to cut that 1.67 60'. I did one more pass and ended up throwing a CEL so it was a waste... Still went 12.4 so who knows what it would have been. P0031 and 37..... Log shows that I was only making 17psi so I think I popped a line somewhere. Either that or both O2 sensors went out at the same time, or I trashed the rear O2 with the drive shaft and that caused the front to do something weird too... Not sure, I'll have to trouble shoot it but the car seems to be mechanically fine, just dealing with wacky AFR's now.

I have drone and in-car videos for the 12.2 pass that I'll upload when I get them from my uncle.

Attachments:

1st pass:



2nd pass:



3rd pass:



4th pass:




Video of the 12.25 pass:

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Last edited by RicersWetDream; 08-12-2017 at 11:52 AM.
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Old 07-09-2017, 12:22 AM   #2
toph
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Nice time. Pop the 5-speed? 111 trap is pretty slow for the ET, good driving for sure.
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Old 07-09-2017, 08:23 AM   #3
RicersWetDream
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2014 Forester XT

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Didn't even want to attempt it with the 5 speed so I preemptively went six speed. After reviewing all my logs I'm only hitting 17 psi in 1st and 2nd gear, then hitting my target 20.5 by 3rd. Not sure why boost is low in 1-2 but I may need to look at that too. I was running all gears to redline so that may have kept my mph down. I also don't want to go much over this on the stock block. I was expecting 115 or so, so I'm guessing my lower boost and winding it out was holding me back. 2800# car should be faster and driver mod didn't hold me back as much as I thought. First time out, plenty to learn about how to run this car. I need to see what's up with the car and probably try again later this season.
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Old 07-09-2017, 09:41 PM   #4
silversurfer05
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Dgm

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Full sti 6 speed swap or the hybrid and kept it 5x100?
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Old 07-09-2017, 09:49 PM   #5
424wrx
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i did a [email protected] with just stage 2 mods and a vf52 swap on my 08. good job op!!
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Old 07-09-2017, 10:05 PM   #6
RicersWetDream
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2014 Forester XT

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Quote:
Originally Posted by silversurfer05 View Post
Full sti 6 speed swap or the hybrid and kept it 5x100?
Kept the 5x100. OEM WRX front axles, DSS 800hp hybrid rears. My swap thread is a sticky in the drive train section.
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Old 07-09-2017, 10:18 PM   #7
RicersWetDream
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2014 Forester XT

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Also figured out my problem.


Somehow managed to pull the bolts on the back end of the trans cross member clean through the stud plate or whatever it's called. Lost that plate and bushing on the track. That allowed the trans to punch and cut the wires to the rear O2. Crazy, but an easy fix.



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Old 07-10-2017, 03:03 AM   #8
13idahosti
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Nice times! I would have liked to have seen this in person!
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Old 07-10-2017, 11:42 PM   #9
Yoda
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Nice time! Congrats!
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Old 07-11-2017, 02:51 PM   #10
JoeTX
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Damn fine driving for your first time at the track. You must have really given it the beans for that 1.677 60’. Good job.

The weight reduction is quite a lot. Did you weigh it before stripping it? Is this a street car? Any pics?
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Old 07-11-2017, 03:17 PM   #11
RicersWetDream
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2014 Forester XT

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Never weighed it before I started stripping it, just last summer at the local recycling center. Don't have any pics but imagine nothing behind the front seats, all ac/ps/evap/air pump, lighter wheels, cf drive shaft, bumper beams, cf hood. Future plans are for even lighter wheels and tires, drag brakes, lighter seats with no airbags (after the cage), all other air bags, lithium battery, then probably tubular subframes and maybe gutting doors and what-not. Depends how much the cage adds but it's feasible to see another 200+ pounds leave the car
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Old 07-14-2017, 03:32 PM   #12
RicersWetDream
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2014 Forester XT

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TSS Fab trans cross member is on the way. Also noticed my clutch starting to chatter over the last few weeks and took a look at the firewall welds. They're fried.

I'll be fixing the firewall, replacing the crossmember, and splicing the rear O2 back together in my spare time... Not high on my priority list right now and I'm guessing it'll be September until I can get back to the track.

Goal for September is 11's approaching 115 mph. Only major change will be adjusting my shift points... Figure 6500 1-2, 6200 2-3, 6000 3-4 and 4-5 (if needed) rather than winding all gears to 7k. I'm sure that cost me a lot.
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Old 07-15-2017, 05:34 PM   #13
kellygnsd
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LINK G4+ hybrid STi

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What's the dyno graph look like? Just wondering where you got your future shift points from.
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Old 07-15-2017, 05:47 PM   #14
RicersWetDream
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2014 Forester XT

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Double post

Last edited by RicersWetDream; 08-13-2017 at 10:19 AM.
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Old 07-15-2017, 05:47 PM   #15
RicersWetDream
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2014 Forester XT

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Just a VD of one of my logs so I don't take much stock in the #'s but the power falls hard after 6k.
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Old 08-12-2017, 11:52 AM   #16
RicersWetDream
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2014 Forester XT

Default

Finally got the video of the 12.25 pass and added it to the first post.
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Old 08-13-2017, 12:10 AM   #17
Junior2JZ
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9.1/157mph 2015 STI

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Your revised shift points should work better. Revving the stock turbo cars always made me go slower.

Good luck with your goals!

This was a pretty much spot on pass with a stock motor/turbo 10 WRX

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Old 08-13-2017, 12:43 AM   #18
RicersWetDream
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2014 Forester XT

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Thanks man! Hopefully I'll knock another quarter second off and gain a few mph.

Also got the car back together with the new TSS trans xmember, and got the interior all back together after the weld fix. Went back in a lot easier than I thought but I do have six left over screws from the dash 😨



I figure in September I'll make it back to the track. This time it'll probably be Milan dragway, which is a nice track. Lapeer is a good shakedown track 😁

Last edited by RicersWetDream; 08-13-2017 at 12:58 AM.
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Old 08-13-2017, 09:56 AM   #19
scoobyfast
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Throw those screws in the garbage, viola more weight savings.
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Old 08-16-2017, 09:39 PM   #20
RicersWetDream
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2014 Forester XT

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Now she's running real rich and throwing the P0172 code (running rich - thanks captain obvious).

Thinking it's just the rear O2 since it holds stoich while warming up then goes rich once it's past the warm up tables. Car runs fine in OL, just pig rich in CL. New O2 on the way to see if that'll fix it.

In the mean time I'll see if I have any exhaust leaks anywhere, clean the MAF, and maybe test the fpr.... Actually have a spare in my basement if it went bad. I'm guessing worst case it's a suck injector but the warm up tells me once the car starts using the O2's and not the warm up tables one of them is hosed (and most likely the one I spliced back together after thoroughly trashing it lol).
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Old 09-08-2017, 12:22 PM   #21
RicersWetDream
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Join Date: Apr 2010
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2014 Forester XT

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I think I got the car sorted out..... Finally. Replaced the rear O2 and that seems to have fixed the running real rich situation. I do think I was originally tuned with a slight vacuum leak because when I re-did some of my wiring and hose routing I must have fixed a leak. My AFR comps were real high (negative) at idle after getting it all back together.

I've had about zero time to work on the car since I put the cross member in... Pretty sure I've driven it less than 5 miles since July. Either way, I've been at least spending a few minutes a week logging and re-scaling my MAF at idle and I think I've got it dialed in. Hopefully this weekend I'll get out and do some more logging and see how the AFR's are in open loop. They seemed to be fine before, just not great at idle. I'll keep an eye on my compensations though and adjust if I start to see anything more than 5% or so.

I also still think my clutch is too chattery, and grabs really high off the floor now that I've fixed my firewall welds.... I've adjusted the pedal but I still don't like the way it feels. Unfortunately I think that's more normal now that my entire pedal assembly isn't moving. I may pull out the damper thing that's inside of the clutch slave if the STI's have them (I know the WRX slave did) to help with the chatter.

If it looks good this weekend I may try and get to the track yet this month and try for a pass in the 11's without adding any boost or timing.

Last edited by RicersWetDream; 09-08-2017 at 12:28 PM.
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Old 09-09-2017, 06:47 PM   #22
taxkourel
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Default Quarter Mile: 2009 WRX Stock Block & Turbo Goes 12.25 @ 111 mph

Hope u make it if not this month at least before the winter! Keep us posted! Cool car!
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Old 10-05-2017, 12:24 PM   #23
RicersWetDream
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2014 Forester XT

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Starting to lose hope for making it out this year. I tried to take the car in to work last week (early morning commute and about 72 miles of highway - great for logging MAF to check the scaling)... and the battery was dead. It was on the battery tender so the battery was definitely smoked. I figured it was on its way out when the tender could never get into "storage" mode starting in the last couple months, it was always charging.

The upside is I lost 23 more pounds with the new EXT-14 AGM. 220CCA and weighs 11 lbs versus 35.



I just need to get a new die to re-thread the tie down J-hook and I should be fine. I'll probably do that this weekend, then maybe next week get around to re-scaling the MAF to see if that fixes my problem. If not, she's being put into storage mode for the winter and I'll think about dealing with it in the spring.

Last edited by RicersWetDream; 10-05-2017 at 12:30 PM.
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Old 10-10-2017, 11:03 PM   #24
PoonSlayer69
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So glad i ran into this thread. Im on a similar journey, although it is in the beginning stages and just looking yo get into 11 secs ( equivalent) . The car will also be used for autocross.

The car is full boltons and road tune with open source. It is on a low output tune. Stocks 5 speed & clutch

I have access to 1/8 mile only. On 18inch wheels on 75 degree day in SF the car went 8.38 @ 84.49 With a 1.97 sixt ft.

Friday we'll be back at the 1/8 mile( weather permitting) with some weight savings

Removed rear seats
16x8 rota slipstreams on 215/40 Kuhmo v710 ( 32 LBs total for each)
Deca lightweight battery

Hoping for a 8.0 - 8.1 with a 1.8 sixty ft
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Old 10-11-2017, 09:15 AM   #25
RicersWetDream
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2014 Forester XT

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Looking at my slips in the first post, it looks like my 60' savings were doubled in the 1/8th ET so you should be pretty close if you can save .1-.2".

Either way, while those tires seem quite capable for auto-x, they're really short and will hurt you in the straight line due to the gearing changes.

You probably saved at least 100 pounds with just what you mentioned above so there's another .05-.1" (in theory).

Have fun and try not to break anything!

Back to the car - turns out my battery probably wasn't dead... Wups. The in-line fuse was blown, and I only figured that out after the new battery wouldn't charge either. At least I got a new battery out of the deal?

New battery is in, and I filled the hole in the roof and my dash.

Did a quick boost leak test and she held 25 psi so there are no more leaks.

I've started to re-scale my whole MAF, honestly just starting from the stock map's MAF curve. Once I plotted the current scaling out in excel it looked like garbage (I didn't do it, I promise!), so I just scaled the stock curve about 5% above the current curve as a starting point. We'll see if that gets my OL AFR's in the right spot (was seeing 12.6... bit too high), and starts to shrink my AF corrections. It'll probably be a few iterations but the last log I pulled after just replacing the rear O2, I was pulling timing the entire time I was full throttle... Anywhere from 1.5-3.5 or so degrees which is hopefully due to the crazy high AFR, which is hopefully because I fixed a small leak that the car was tuned with and is now getting more air than the ECU is aware of and running lean. Boost was perfect though, so that's good.






Last edited by RicersWetDream; 10-11-2017 at 09:28 AM.
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