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Old 05-17-2019, 10:00 AM   #176
Turpid Porpoise
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Member#: 476573
Join Date: Oct 2017
Chapter/Region: MAIC
Location: Lovettsville, Virginia
Vehicle:
2008 Impreza WRX STi
Silver

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Quote:
Originally Posted by RicersWetDream View Post
Yeah, scoopless hood would be great. I wish he was making these parts when I did my seibon hood. His is quite a bit more but is 15 pounds less since it's a full CF piece.
After dealing with a few Seibon-equal carbon hoods I will always spend the extra coin for a high quality carbon fiber piece. I have carbon hoods and fenders on my C5 from Carbon Creationz and the fitment is about what I've come to expect when I don't go for the top of the line pieces.
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Old 05-30-2019, 08:28 AM   #177
RicersWetDream
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Member#: 245581
Join Date: Apr 2010
Chapter/Region: MWSOC
Location: Marshall, MI
Vehicle:
2009 WRX
2014 Forester XT

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Some better pics added to post #2, 2019 yearly progress pictures.


Potential 2020 Projects:

CF Front Doors & Hatch from MPH, Lexan Side and Rear Windows

OR

Tubular Subframes F & R from TSS Fab
KW Variant 1 or RCE SuperStreet Coilovers
Rear LCA's and Front Control Arms from Racer X
STM Drag Brakes F & R
Rota Slips 15x7 w/ Hoosier DR2's in 235/60/15

I need to stoke interest in GR front doors, he'd like three people to commit to putting down $500 deposits and he'll commit to making GR front doors. With more CF parts and gutting the rear doors I believe I can save close to 200 pounds. The suspension/brake phase would save about 150 pounds, 82 or so of it being rotating mass and 92 unsprung. Whichever project doesn't make the 2020 list will likely be completed in 2021. Ultimately I want to get this car in final configuration in terms of weight before I add power. I'd like to see how fast it'll go on the stock turbo, with a better driver and more aggressive tune I bet it would be a 10 second car but I'll shoot for 11.5 or quicker, maybe 117 mph.

If I go suspension and tire route, the tires are about 26" tall versus current 24.5". I'd only use them at the track, so I wouldn't always see the benefit of lighter setup, but the height will be way better gearing for the track. Here's how those tires will impact my gearing versus current.

Current Speed Per Gear @ 7k rpm:
1st - 35.79
2nd - 58.43
3rd - 85.72
4th - 114.29
5th - 134.32
6th - 171.43

Hoosier 26" @7k rpm:
1st - 38.29
2nd - 62.5
3rd - 91.7
4th - 122.26
5th - 143.69
6th - 183.39

Now, once I build the engine and rev it to 8k with the Hoosiers:

Hoosier 26" @8k rpm:
1st - 43.76
2nd - 71.42
3rd - 104.8
4th - 139.72
5th - 164.22
6th - 209.59

Basically the taller tires will keep me in 4th gear, in a better area of the power band with my current power levels. I'm currently riding the rev limiter at the end of the quarter with the short tires I'm currently running. 122 mph is pretty close to a 10 second trap speed, and once I raise the limiter to 8k with the better valve train I'll definitely be able to keep it in 4th since I don't see myself getting much faster than 135-140 in the quarter.

Last edited by RicersWetDream; 05-30-2019 at 08:51 AM.
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Old 05-30-2019, 09:00 AM   #178
Turpid Porpoise
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Join Date: Oct 2017
Chapter/Region: MAIC
Location: Lovettsville, Virginia
Vehicle:
2008 Impreza WRX STi
Silver

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Quote:
Originally Posted by RicersWetDream View Post
I need to stoke interest in GR front doors, he'd like three people to commit to putting down $500 deposits and he'll commit to making GR front doors.
Any idea on what the total would be?
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Old 05-30-2019, 09:12 AM   #179
RicersWetDream
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Member#: 245581
Join Date: Apr 2010
Chapter/Region: MWSOC
Location: Marshall, MI
Vehicle:
2009 WRX
2014 Forester XT

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Quote:
Originally Posted by Turpid Porpoise View Post
Any idea on what the total would be?
He said $3,000 for the pair of doors, full CF. Based on what his BRZ doors save and what the OEM doors were, I'd guess it's a 70-80 pound savings for the pair.

Not sure on hatch cost, but he is starting the mold on that soon so he said they'll be available in a few months. Based on $3k for the doors hatch will probably land around $1,500.
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Old 05-30-2019, 03:07 PM   #180
Scuby04STi
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Member#: 328635
Join Date: Aug 2012
Chapter/Region: NWIC
Location: Portland*
Vehicle:
2004 STi GTX3076R
Rally Blue

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LOL, I love figuring out the gearing/speed. But that extra thousand rpm helps a LOT!!! I currently am toping out in 4th at 129-130mph on my e-85 tune, thinking when I turn things up a bit I will need to hold that gear out even higher to avoid 5th gear.

Also I really like that you aren't doing the weight reduction and the power all at once, this will make it very interesting to watch the gains from each step.
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Old 05-30-2019, 03:37 PM   #181
RicersWetDream
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Member#: 245581
Join Date: Apr 2010
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Location: Marshall, MI
Vehicle:
2009 WRX
2014 Forester XT

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Quote:
Originally Posted by Scuby04STi View Post
LOL, I love figuring out the gearing/speed. But that extra thousand rpm helps a LOT!!! I currently am toping out in 4th at 129-130mph on my e-85 tune, thinking when I turn things up a bit I will need to hold that gear out even higher to avoid 5th gear.

Also I really like that you aren't doing the weight reduction and the power all at once, this will make it very interesting to watch the gains from each step.
You should see the calculator I built in Excel to try and quantify future quarter mile times based on ET/MPH changes from added power or weight reduction efforts.

The fact that the car will be 226ish pounds lighter than the 12.25 pass (w/o pass seat and harness, half tank), my calculator says 12.08 at 114. I only have a couple data points so as I get more runs in I can refine it with more data.

I'm guessing the tires themselves will make a big difference if I were to just pull the trigger on those.
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Old 07-27-2019, 09:10 AM   #182
RicersWetDream
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Location: Marshall, MI
Vehicle:
2009 WRX
2014 Forester XT

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Mini project. Not sure if I'll see any benefit from it but hopefully it will clean up the aero on the front end.

Since there's really no need for the lower grille area with no AC I've decided to clean up the opening and then cover it with a sheet of 1/8" abs. I'll use some left over panel bond from the roof to bond it from the back side. I may cover with left over cf di-noc from the tube protectors.

ABS panel shows up today so it'll be done tonight.





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Old 07-27-2019, 01:09 PM   #183
RicersWetDream
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Member#: 245581
Join Date: Apr 2010
Chapter/Region: MWSOC
Location: Marshall, MI
Vehicle:
2009 WRX
2014 Forester XT

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Panel showed up early in the day, so it's already curing out....





"Clamps"


I can pull clamps at 7, fully cured by tomorrow afternoon. Should have pics of the bumper fitted back up this evening. It's the same stuff I used for the roof panel so it'll be a solid bond, we'll see how 1/8" abs likes 115 mph... I figure it'll hold up since it's basically the same material and thickness as the bumper.
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Old 07-27-2019, 08:48 PM   #184
RicersWetDream
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Member#: 245581
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Chapter/Region: MWSOC
Location: Marshall, MI
Vehicle:
2009 WRX
2014 Forester XT

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Done.



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Old 09-06-2019, 08:48 AM   #185
RicersWetDream
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Join Date: Apr 2010
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Location: Marshall, MI
Vehicle:
2009 WRX
2014 Forester XT

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I'm starting to think I won't make it to the track this year... Work has been keeping me too busy.

I was doing some tuning on the car, working on boost control and raising it from about 20 psi to 22psi to see how it liked it. I also started adding more timing up top. I was running about 14.5 degrees at peak torque whereas most guys are running 18-ish. I've ramped it up to about 16.5 so far and will keep going as far as I see power gains.

I figure those changes plus 200 pounds off the car since my 12.25 pass should net a solid 11. Only ran into a random issue, the car started to run quite rich. Basically it seems to cruise at stoich but it was idling in the 12:1 range, and give it any gas and it dips into the 9-10:1 range and stumbles hard. I haven't had much time to diagnose, but there don't appear to be any air leaks (which typically would run lean at idle). I'm leaning towards the front O2 going out or a bad tank of E. This happened right after a fill up and seemed to get a bit better after I topped that tank off (from half). I'm curious if I drive around for a while and have to fill up again if it'll resolve it. If not, I guess I'll try a new O2 sensor.

If I can find time to figure out the problem and wrap up my tuning changes I'll try to make it out this year.... If not, there's always next year. I'm still hopeful that I can knock out either the suspension/brakes/race wheel setup, or shoot for more lightweight parts and finish up the body work on the car (hopefully front doors, hatch, lexan).
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