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05-25-2017, 08:56 PM | #3026 | |
Scooby Newbie
Member#: 212664
Join Date: May 2009
Chapter/Region:
NESIC
Location: buffalo, ny
Vehicle:03 wrx sedona red |
Quote:
Yeah but why do my own leg work when someone else can do it for me?? I couldn't find it on eBay either so it had to have been custom. Thanks for the tip! ;-)
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05-25-2017, 09:16 PM | #3027 |
Scooby Specialist
Member#: 273868
Join Date: Feb 2011
Chapter/Region:
MAIC
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05-26-2017, 09:07 AM | #3028 |
Top Scoob 009
Member#: 68273
Join Date: Aug 2004
Chapter/Region:
MAIC
Location: IAG Performance
Vehicle:2012 WRX GD Race Car |
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05-26-2017, 09:18 AM | #3029 |
Top Scoob 009
Member#: 68273
Join Date: Aug 2004
Chapter/Region:
MAIC
Location: IAG Performance
Vehicle:2012 WRX GD Race Car |
In order to take full advantage of the paddle shift system, particularly on downshifts, I needed to get as much weight out of the flywheel and clutch as possible. Modulation wasn't much of a concern since I only need the pedal to get moving from a stop. A carbon clutch would have been sweet but well out of my price range at this time.
I decided to go with a Tilton 5.5" OT-III HD triple disc metallic, along with their hydraulic release bearing. This is mated to a billet "supalite" flywheel from TTV Racing in the U.K. I had never heard of these guys before but I learned they make the flywheels for a LOT of factory race teams. Everything from the BTCC Subaru Levorgs to the BMW M4 GT4 and even F3 and historic F1. They were extremely accommodating (as was Tilton) and can make pretty much anything you ask for. The flywheel is 3.5kg (7.7 lbs) and the clutch assembly is also 7.7 lbs, for a total combined weight of only 15.4 lbs! For comparison, the Exedy Twin that's in the car now is around 33 lbs for clutch and flywheel. This savings is going to make a huge difference in downshift speeds, not to mention improving acceleration. |
05-26-2017, 09:47 AM | #3030 |
Scooby Specialist
Member#: 245787
Join Date: May 2010
Chapter/Region:
W. Canada
Location: Canada
Vehicle:GD Race Car |
insane rotational weight drop! luckily you don't have to worry about how fast you are shifting LOL.
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05-26-2017, 11:19 AM | #3031 |
Top Scoob 009
Member#: 68273
Join Date: Aug 2004
Chapter/Region:
MAIC
Location: IAG Performance
Vehicle:2012 WRX GD Race Car |
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05-26-2017, 06:38 PM | #3032 |
Scooby Specialist
Member#: 6265
Join Date: May 2001
Chapter/Region:
BAIC
Location: Hayward, CA
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Damn wish I was a baller lol, looks badass mate!
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05-27-2017, 06:23 AM | #3033 |
Scooby Specialist
Member#: 117847
Join Date: Jun 2006
Chapter/Region:
NWIC
Location: Seattle, WA.
Vehicle:2005 Rotated DOM3XTR 460whp, 400wtq Pump Tune |
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05-27-2017, 08:17 AM | #3034 |
Scooby Newbie
Member#: 358395
Join Date: Jun 2013
Chapter/Region:
NESIC
Location: NH
Vehicle:05 STI White with Rubber marks |
Adding to the list of questions...
I just skimmed the thread looking for info of what your using for crank/cam whatever position tracking and didnt see anything. I spoke with Franz recently and he touched on how wonderful the oem pieces work (read: sarcasm) and before I go reinvent the wheel and build my own I may as well see what the big guys are doing. Are you using the oem stuff? A crank trigger wheel? some combination of the above? -Jacob |
05-27-2017, 09:57 AM | #3035 | ||
Top Scoob 009
Member#: 68273
Join Date: Aug 2004
Chapter/Region:
MAIC
Location: IAG Performance
Vehicle:2012 WRX GD Race Car |
Ballin on a budget mate! The Tilton metallic clutches aren't too bad, around the same cost as an Exedy twin. The true ballers use carbon!
Quote:
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06-14-2017, 01:45 PM | #3036 |
Top Scoob 009
Member#: 68273
Join Date: Aug 2004
Chapter/Region:
MAIC
Location: IAG Performance
Vehicle:2012 WRX GD Race Car |
I am proud to announce a new partnership with Cosworth! They have offered to supply their intake manifold to start with, but I will be adding some more of their parts later in the season, such as a billet crankshaft. Really thrilled to partner with such a legendary name in motorsport, and I'm looking forward to seeing some power gains with the manifold. More to come once it gets installed!
In the meantime, here's a pic of me hard parked at Boxerfest last weekend. |
06-14-2017, 02:02 PM | #3037 |
Scooby Specialist
Member#: 182415
Join Date: Jun 2008
Chapter/Region:
Tri-State
Location: New York
Vehicle:1999 RS Aspen White |
I got to check out the car out on sunday and it looks great! Theres always speed bumps along the road but im glad its turned out as well as it did, im probably one of the few people here who've seen this thing through the entire process from when IAG first got their hands on it, ive been to the shop a bunch as well as peeking at it from all the events they drag it around to, good work!
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06-14-2017, 04:34 PM | #3038 |
Scooby Specialist
Member#: 260314
Join Date: Oct 2010
Chapter/Region:
NESIC
Location: S central CT, New England
Vehicle:2007 STI silver gray metallic |
Nice! Anything helps, right? Better than a sharp stick in the eye.
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06-14-2017, 05:15 PM | #3039 | |
Top Scoob 009
Member#: 68273
Join Date: Aug 2004
Chapter/Region:
MAIC
Location: IAG Performance
Vehicle:2012 WRX GD Race Car |
Quote:
Agreed, new intake manifold>partial blindness. |
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06-16-2017, 03:30 AM | #3040 | |
Scooby Guru
Member#: 158864
Join Date: Sep 2007
Location: Aussieland
Vehicle:2003 SOHC destroker |
Quote:
Aside from *some* stuff on the engine I'm genuinely struggling to come up with something you HAVEN'T done to this car now the sequential is on the way. I'm interested to know why you chose the fuel you did, was it just an endurance/capacity thing? I would have thought 100% ethanol would be the way to go for the cooling benefit. |
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06-16-2017, 11:06 AM | #3041 | |
Top Scoob 009
Member#: 68273
Join Date: Aug 2004
Chapter/Region:
MAIC
Location: IAG Performance
Vehicle:2012 WRX GD Race Car |
Quote:
I'd say that every part of the car has been touched in some way but there's still a lot left that can be done. Going forward, I think aero development is where the most will be gained. The Ignite Red is really amazing stuff, I can't see the need to run anything else. It's effectively E90, 114 octane, and if you buy it by the 55 gallon drum, it works out to $5 something a gallon which is a steal for race gas. Hell, it's cheaper than 93 octane at the trackside pump! There's a good reason it is so widely used in time attack and formula drift. |
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06-17-2017, 10:12 PM | #3042 |
Scooby Guru
Member#: 158864
Join Date: Sep 2007
Location: Aussieland
Vehicle:2003 SOHC destroker |
Yes aero's one of those things that benefits more the faster the rest of your car is. Woo physics.
What non-aero stuff do you still have planned? About the only things I can really think of left are engine headwork, maybe some kind of abs wizardry? and I can't remember what you did for diffs but I'm sure they were changed |
06-18-2017, 08:24 AM | #3043 | |
Scooby Newbie
Member#: 458149
Join Date: Nov 2016
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Quote:
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06-19-2017, 03:32 PM | #3044 | |
Top Scoob 009
Member#: 68273
Join Date: Aug 2004
Chapter/Region:
MAIC
Location: IAG Performance
Vehicle:2012 WRX GD Race Car |
Quote:
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06-19-2017, 03:33 PM | #3045 |
Top Scoob 009
Member#: 68273
Join Date: Aug 2004
Chapter/Region:
MAIC
Location: IAG Performance
Vehicle:2012 WRX GD Race Car |
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06-19-2017, 05:31 PM | #3046 |
Scooby Specialist
Member#: 260314
Join Date: Oct 2010
Chapter/Region:
NESIC
Location: S central CT, New England
Vehicle:2007 STI silver gray metallic |
This is of great interest to me. I am using custom tuned OS Giken diffs. Stock center diff with DCCD Pro controls. With my use of the 430WHP setting on 11 inch wide Goodrich G-Force R1 tires I felt like I was getting some slight slippage (as in slight RPM rise) in a couple spots on tight uphill turns. I suspect the center diff but don't know if that's realistic. I also might not be at full lockup on the diff controller. Do not think there's any way it's the clutch slipping.
My OS Gikens: Front diff: "1.0". The one way settings are 3 degrees on deceleration (effectively zero) and 45 degrees on acceleration side. Lock timing is 184 kgs. Rear diff: "1.5". 25/38 degrees, cam angle and 376 kgs. negative resistance to lock. . Why, for you, the choice of the two different brands of diffs? Last edited by Scargod; 06-20-2017 at 11:13 AM. |
06-21-2017, 10:35 AM | #3047 | |
Top Scoob 009
Member#: 68273
Join Date: Aug 2004
Chapter/Region:
MAIC
Location: IAG Performance
Vehicle:2012 WRX GD Race Car |
Quote:
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06-21-2017, 11:21 AM | #3048 |
Scooby Specialist
Member#: 260314
Join Date: Oct 2010
Chapter/Region:
NESIC
Location: S central CT, New England
Vehicle:2007 STI silver gray metallic |
Same here with the DCCD Pro. I've yet to go through the process of finding a level spot for the car and zeroing the dual axis G sensor. Did you zero everything per their instructions?
And you're running the stock center diff?? |
06-21-2017, 04:57 PM | #3049 | |
Scooby Newbie
Member#: 101309
Join Date: Nov 2005
Chapter/Region:
South East
Location: Atlanta, Ga
Vehicle:2002 Corvette Z06 Satin Pearl Nero (avery) |
Quote:
I gotta go back and read through this thread. Haven't been on this forum in yrs. Just tryin to see what's happening in various parts of the scene. |
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06-22-2017, 03:12 PM | #3050 | |
Top Scoob 009
Member#: 68273
Join Date: Aug 2004
Chapter/Region:
MAIC
Location: IAG Performance
Vehicle:2012 WRX GD Race Car |
Quote:
Currently running stock center diff, apparently some of the upgraded center diffs don't work so well on tarmac. |
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