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Old 11-15-2011, 10:58 AM   #301
imprezaL2345
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Quote:
Originally Posted by BeBop86
Which month issue is that?
December 2011
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Last edited by imprezaL2345; 11-15-2011 at 02:23 PM.
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Old 11-15-2011, 08:28 PM   #302
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Old 01-14-2012, 11:49 PM   #303
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So- as more power is at least $2.5K away I'm sticking with some wheel and suspension changes this year. Spending to help my son out has taken all funds away from power mods.

I'm working on custom front control arms and I'm finally addressing the brakes. The stock 2.5RS calipers are HEAVY! The 4 pot wilwoods I'm replacing them with will save me about 15 lbs. I'll lose some of that in the switch from 16x10's to 16x12's, but it will be pretty close.

Overall I'm hoping to move the weight balance rearward about 1.5% this year while weighing in under 2000 lbs at nats. Maybe there's more power in the works, we'll see how the tax returns come out this year. The GTX 2876 looks awesome. Paired with a set of 1200 cc injectors and a tune the 2.0L looks like it would be an awesome combination.
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Old 01-15-2012, 01:15 AM   #304
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If those are the old style Dynalite calipers, you will HATE them. Don't toss your stockers until you're sure you aren't going to hang yourself because of the lost pedal feel of the flex-a-lites.
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Old 01-15-2012, 12:11 PM   #305
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If you're looking for a place to get rid of the 10" wheels, let me know.....we are thinking of going up to 16".

Good luck with those upgrades, and keep us posted on how they work out!

Jay
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Old 01-15-2012, 10:53 PM   #306
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Quote:
Originally Posted by speedyHAM View Post
So- as more power is at least $2.5K away I'm sticking with some wheel and suspension changes this year. Spending to help my son out has taken all funds away from power mods.

I'm working on custom front control arms and I'm finally addressing the brakes. The stock 2.5RS calipers are HEAVY! The 4 pot wilwoods I'm replacing them with will save me about 15 lbs. I'll lose some of that in the switch from 16x10's to 16x12's, but it will be pretty close.

Overall I'm hoping to move the weight balance rearward about 1.5% this year while weighing in under 2000 lbs at nats. Maybe there's more power in the works, we'll see how the tax returns come out this year. The GTX 2876 looks awesome. Paired with a set of 1200 cc injectors and a tune the 2.0L looks like it would be an awesome combination.
I'm curious about your front controls arms. Going tubular for weight savings or are you changing dimensions?

I've heard bad things (as others have said) about the wilwoods. I looked into them a while ago when I thought about selling the Brembos and they really weren't good enough to justify swapping.
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Old 01-16-2012, 09:21 PM   #307
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2.1L stroker
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Old 03-06-2012, 11:59 AM   #308
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It is time to vote. SpeedyHAM FTMFW. C'mon guys, you know he deserves it.

Doo-eeeet! Dooo-eeeet nowww!

http://forums.nasioc.com/forums/show....php?t=2309192
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Old 03-07-2012, 06:23 PM   #309
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I voted for him instead of myself!!!!


Jay
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Old 03-07-2012, 06:29 PM   #310
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It was really tough choice for me since several of the cars belong to friends of mine. But I have enjoyed this thread so much that I voted for speedyHAM.

-Paul

'95 Frankenpreza will be ready soon for SM.
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Old 03-07-2012, 11:07 PM   #311
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Thanks for the votes guys. Top Scoob of the month or not, I'm going to keep on improving this Impreza year after year and one day hopefully it will be able to win XP.

The car really still needs to go on a diet and start doing some heavy lifting (getting moar POWER). This year is going to be a bit lighter, with further improved weight balance, suspension geometry, and contact patch. Maybe next year I'll have the $$ to bump up the power.

AtomicRacer, send me your built thread and I'll see if there's any pointers I can give you to help you out in SM. (a 6 lb alternator helps, as long as it doesn't burn up)
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Old 03-08-2012, 07:31 AM   #312
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It is a '95 Impreza coupe with a full 2007 STI drivetrain swap. I haven't started a build thread yet (lazy) but I will tomorrow and link it here.

What 6 lb alternator?

-Paul
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Old 03-08-2012, 11:15 AM   #313
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I think we all know who I voted for

Sean, with your current (since it's always changing) what's your cap on displacement? Or should I really be asking with your target weight?
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Old 03-18-2012, 09:28 PM   #314
speedyHAM
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My current weight is just under 2000 lbs, my current displacement is 2.0L, and my minimum weight with the 2L is 1900 lbs. My target weight is 1900 lbs with a 50/50 weight distribution.

The 6 lb alternator I referred to is a powermasters 8152. To run it you need custom wiring, mounting for it, and a custom pulley. For me the 6 lbs of weight savings was worth the work.

Now on to recent progress...

The 16x10's just were not wide enough to properly handle the hoosiers I ran last year. Since I really like those tires and plan on running them again, it was time for a 16x12.



The front suspension (while having much better geometry than stock) needed further improvement, so more geometry improvements were in order. The new control arms also save me 2 lbs per side vs. stock. Bonus.



For even more weight reduction and hopefully better brake feel, the new calipers were mounted and a quick clearance check was in order. 3-piece wheels are nice for things like this.


Last edited by speedyHAM; 03-18-2012 at 11:03 PM.
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Old 03-19-2012, 08:03 AM   #315
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Good stuff Sean! Can't wait to see how the changes work out!

Jay
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Old 04-01-2012, 07:25 PM   #316
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SpeedyHam-

If you don't mind sharing this information how do you like the Hoosier radial slick vs the A6? You are running the R75 compound right, does it work well for a single driver? Any set up tips would be helpful, I think you are one of the few that have run both of these tires on a Subaru. If you don't want to share for competitive reasons I understand, I'm in XP too but no threat to you.

Are you planning on going to Packwood this year? What about you Storm?

Pic of my car last year for reference-
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Old 04-01-2012, 11:25 PM   #317
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In my opinion the R75's are poorly suited to a single driver in a mild to cold climate. Zust makes them work on the Lotus VERY well, but he is mostly in hotter climates always with two drivers. When I ran the R75's on my car I had a lot of trouble getting enough heat in them. Once they had heat they did work very well though.

Now I run Hoosier C4000 R35's. It's a bit softer compound and still likes a fair amount of heat without the downside of needing heat to work. They are bias ply tires as opposed to radials, so tuning the suspension is a little different with them than with radials.

Compared to the A6's, the slicks have more grip. Between the R75's and the A6's the suspension tuning is very similar. You need to run a bit more camber with the R75's as they are very sensitive to camber changes, and with a strut front end out cars change camber pretty rapidly.

The biggest thing between the A6's and the tires I run now is that while the A6's I ran felt like they had a lot of grip, the slicks in the right conditions feel like magic. Just make sure you have enough clearance if you decide to run slicks, they are expensive and the sizes are all different than "normal" tires.

I'm not trying to be competitive and keep secrets, I just do this for fun.

Love the picture of the car BTW.
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Old 04-02-2012, 01:26 AM   #318
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Thanks for the info and good luck this year. Your build is very impressive, I think you can catch Zust. This is my first year trying to race competitively and I am trying to learn from those with more experience.
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Old 04-22-2012, 06:53 PM   #319
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Have you got a chance to run the car yet this year SpeedyHam? How where the off season changes?

Also had another question, do you still run the stock dash beam? I'm trying to find in the rules if we are allowed to delete this item in XP?
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Old 04-22-2012, 07:16 PM   #320
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our local autocross season starts with a double headder may 5th/6th.. SpeedyHam is registered, i imagine that will be his opener...
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Old 04-27-2012, 10:50 PM   #321
speedyHAM
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I have not done any events yet this year as Shane mentioned. The 5th and 6th will be the first event out, at this point I'm just hoping to have the car ready to go at that point.



I haven't even had time to bolt the suspension together yet, and the event is next weekend. It's going to be a fun week finishing getting everything together. At least I've solved the starting issues it was having last year. It still needs quite a bit of little things before it's ready to go. We shall see if I can pull it off.
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Old 04-27-2012, 11:05 PM   #322
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What geometry changes are you going for with those?
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Old 04-27-2012, 11:12 PM   #323
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In the brilliant words of Colin Chapman:

1) Simplify; then
2) Add Lightness.

What a car, sir.
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Old 04-27-2012, 11:15 PM   #324
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Quote:
Originally Posted by speedyHAM View Post
In my opinion the R75's are poorly suited to a single driver in a mild to cold climate. Zust makes them work on the Lotus VERY well, but he is mostly in hotter climates always with two drivers. When I ran the R75's on my car I had a lot of trouble getting enough heat in them. Once they had heat they did work very well though.

Now I run Hoosier C4000 R35's. It's a bit softer compound and still likes a fair amount of heat without the downside of needing heat to work. They are bias ply tires as opposed to radials, so tuning the suspension is a little different with them than with radials.

Compared to the A6's, the slicks have more grip. Between the R75's and the A6's the suspension tuning is very similar. You need to run a bit more camber with the R75's as they are very sensitive to camber changes, and with a strut front end out cars change camber pretty rapidly.

The biggest thing between the A6's and the tires I run now is that while the A6's I ran felt like they had a lot of grip, the slicks in the right conditions feel like magic. Just make sure you have enough clearance if you decide to run slicks, they are expensive and the sizes are all different than "normal" tires.

I'm not trying to be competitive and keep secrets, I just do this for fun.

Love the picture of the car BTW.
I'm doing the same as you as are doing, along with Okiedude moving to a 23.5 or 24 x 11.5 or 12 x 16 C200 GT2/1 Hoosier. I've got couple sets of 11.5 tires but need to get my Real Racing three peice's modified for the new widths. So I know Okiedude is using (I believe) a 6" back spacing with a adapter for the 5x100 to wide five wheel that have 1 1/8 offset to make his 16x11. On my 16x9 Real Wheel Pro6 3pcs I have a 5"s of back spacing using JDM STI aluminum control arms and 12" Willwoods. So I was going to get the outer rim piece for the 3pc rims to make mine 16x11 and keep the 5" backspacing and make some custom LCA with an adjustable lower ball joint made from a 1" uniball and cup. Can I as ask what your back spacing is on the 12" wide wheels?

Thanks
Dave
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Old 04-27-2012, 11:34 PM   #325
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My wheels have a 7" backspace right now, but I have to use a little bit of spacer on the hub to fit them. I've run 6" backspacing in years past with no problems, took a lot of measurements this winter and these fit just barely. There were a few other small changes that had to be made such that they will work.

The geometry change with the new arms is to increase caster and move the wheels a bit forward. They also have the end link mounting points attached to be able to run standard WRX and STI front sway bars, although that may be wasted effort as I'm thinking about making some quick changeable custom front swaybars. They are also stronger and lighter than stock arms, so that helps.
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