STU guys check in. Set ups

[GraverD]

Also funny story about yesterdays event. I got 2nd in STU but since there were only 3 cars I did not trophy. Funny part is there were 6 ASP cars and I raw timed them all......... fuuuuuuuuuuuuuuck

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[surfrdawg]

Originally Posted by BooYah11

ahhhh cheating, such a fun subject. If you beat somebody that is cheating then you don't care because you beat them. If anything you relish the fact that you must be a vastly superior driver to have won against someone that had an unfair advantage.

Flip that coin and now you are losing to someone that is cheating...couldn't possibly be that they are a better driver, it had to be that unfair advantage. Humans are funny.

Honestly you should take a look at yourself a bit if you are loosing to a WRX, tuned or not. And Xian is right, a well tuned STi on 100oct will make more usable power everywhere than an OTS 93oct tune.

I might mention to him in passing that there are more strict tech rules for national events and that he should consider trying to get legal before then.

When you get yourself and the car on the pointy edge of competition then maybe concern yourself with the fairness of it all, but until then just focus your energy on making yourself better.

edit ps.
Two years ago at a Match Tour a few out of state guys showed up to race. One had a WRX with an upgraded turbo, e85 and a FMIC. The other had a cool old school SVX with a flat six from an outback swapped in. Both very very illegal, so I asked them about other mods and they were both on stock suspension and had skinny old all season tires on them. Thanks for the class filler gents, you just increased my payout. Cha Ching!!

I'm also in a WRX -__- but point taken. He only got me by a second or so and I have more than that much in both car and driver mod left to do this year anyway

[~The_Duke~]

Most of the time on power courses, alil bit of bravery will make up for that horsepower deficit as well. I was down ~30-40 hp from my arch nemesis last year and we were about 1 or 2 tenths off each other all year.

[AustinTX]

What is everyone doing for headers? I'm still on the OE header and uppipe, but it's getting higher on my list. I know everyone says Killer B holy Header, but OMG $$$ for something that looks like an ebay header. Speaking of ebay headers... http://www.ebay.com/itm/Turbo-Equal-...hR~vBb&vxp=mtr

[~The_Duke~]

I would stay away from ebay headers in general specially for a turbo car... just because there is SOOOO much heat going through them that welds have a tendency to crack on them.

Perrin, Killer B, and Invidia have EL headers.

Grimmspeed has an up pipe to add on if the ones that you pick don't have one already.

[AustinTX]

Do you have any first hand knowledge of ebay headers? How about the other headers? Looking for direct feedback from owners.

[silverhks]

Originally Posted by subydude

ASP's not THAT bad. And you just need cutting wheels, not sawzall blades. SM is where you buy the Sawzall.

Geometry is actually about the same too between ST and SP with some recent rule changes. Really, you can do some power adders, lighter seats, UP/BD for lighter/better parts, aero, then at least 285 A7's. 315's are better, but harder to fit properly in SP because of some issues. I know of one successful ASP car on 315's right now though, so they apparently solved whatever was causing problems.

SM is like the wild west. XP is like the wild west of the wild west.

The big expense for a move to SP is the diffs, 3x$1500 (random number,I'm not sure what OSGikens run) is hard to swallow.

Originally Posted by Xian_1

Got the IAG AOS and Koyo radiator installed... not expecting any perceptible difference but it'll be a good thing for summer use down here. Also measuring up the bumpstops and travel since I've got pretty significant wheel to inner fender contact and rub.

Example of rub:

That doesn't look any worse than my 245s, I would say almost exactly the same. It's not an issue in class, depends on whether it bothers you.

Originally Posted by AustinTX

Do you have any first hand knowledge of ebay headers? How about the other headers? Looking for direct feedback from owners.

I have no personal experience with eBay headers. I do know several people who have cracked them though, and their power results are unclear. One of the reasons the Killer Bs are so expensive is they are made of 321SS not 304SS. He guarantees they won't crack, bare metal, coated, wrapped, or coated and wrapped. I'm not trying to sell you on them, just point out that comparing them to eBay headers is not fair for either.

[silverhks]

On the illegal tune at a local, I would just talk to him about it, or just leave it alone. If he misunderstands he will probably appreciate the correction. If not, beat him and enjoy.

Originally Posted by Xian_1

As an aside, I've seen/heard that the STi's can make north of 300whp on 100 octane so, although his car may not be legal, he may not be making more power than a legal car could put down with a legal 100 octane tune.

There is no need for 100 octane to clear 300, I'm running 93 pump gas at around the 315 mark on Topspeeds dyno in ATL. I don't remember what it was, probably an egojet though...

I don't know how much power the higher octanes yield, but I would imagine it helps lower end torque.

[rich260z]

If I didn't get a killer B I would get a tomei. They were the lightest compared to perrin and invidia. Probably because they use thinner walled tubes. Plus the price is competitive with Perrin and invidia.

I had ebay headers on a stock ka in my s13 and they cracked after 5k miles an like a season of autox. I know it's not subaru related, but they were total ***** lol.

[subydude]

Originally Posted by GraverD

Also funny story about yesterdays event. I got 2nd in STU but since there were only 3 cars I did not trophy. Funny part is there were 6 ASP cars and I raw timed them all......... fuuuuuuuuuuuuuuck

That just means there were 0 ASP cars there

Originally Posted by AustinTX

What is everyone doing for headers? I'm still on the OE header and uppipe, but it's getting higher on my list. I know everyone says Killer B holy Header, but OMG $$$ for something that looks like an ebay header. Speaking of ebay headers... http://www.ebay.com/itm/Turbo-Equal-...hR~vBb&vxp=mtr

You want the KillerB headers.

Originally Posted by silverhks

The big expense for a move to SP is the diffs, 3x$1500 (random number,I'm not sure what OSGikens run) is hard to swallow.

You "only" need 2 diffs. The center is just fine from the factory. OSG's can supposedly be had for less than that. I bought my Cusco's for $1k each so it's only $2k instead of $4,500.

Originally Posted by silverhks

There is no need for 100 octane to clear 300, I'm running 93 pump gas at around the 315 mark on Topspeeds dyno in ATL. I don't remember what it was, probably an egojet though...

I don't know how much power the higher octanes yield, but I would imagine it helps lower end torque.

Topspeed's dyno seems to read in the middle...but more on the high side from what I've seen. High octane allows more timing and leaner mix which is more torque/HP.

[silverhks]

Originally Posted by subydude

High octane allows more timing and leaner mix which is more torque/HP.

Yes, but how much? Ballpark? 10%?
It might be worth it if you have everything else, otherwise I feel it's a lot of added cost/complication for limited gain. I think there is more variability in times for even a great driver run to run, on 245s, than the difference between pump gas and 100.

Now I think 265s might change that variability. I really need to get on a set and see.

[subydude]

If you're at 95% of the build a 100 octane tune isn't hard to justify when you can see the difference of 30hp in data.

[Xian_1]

Originally Posted by silverhks

Yes, but how much? Ballpark? 10%?
It might be worth it if you have everything else, otherwise I feel it's a lot of added cost/complication for limited gain. I think there is more variability in times for even a great driver run to run, on 245s, than the difference between pump gas and 100.

Now I think 265s might change that variability. I really need to get on a set and see.

IMO, where I noticed the difference was in the mid-range... the car is easier to drive with the extra power/TQ letting you adjust the balance more easily and making lag seem pretty close to non-existent. If I have time later this season maybe I'll try running different maps to see what the time difference is between them.

[Illini_STi]

Originally Posted by Xian_1

IMO, where I noticed the difference was in the mid-range... the car is easier to drive with the extra power/TQ letting you adjust the balance more easily and making lag seem pretty close to non-existent. If I have time later this season maybe I'll try running different maps to see what the time difference is between them.

I data logged my road tune session with my DL1. I've got some graphs of acceleration with the different maps. I'll see if I can post that.

[Illini_STi]

And here they are speed vs. time:


Speed vs. Distance


Basically the 100 octane map behaves like the 93 open boost map lower in the rpm. At the top all three end up about the same.

Obviously this wasn't a 2nd gear pull, so not entirely apples to apples, but still a relevant data point.

[Xian_1]

That's a massive difference between the 93 and 100 octane maps. Eyeballing it, the 93 map takes about 35-40% longer to get to the same speed/distance as the 100.

[~The_Duke~]

So I see 93 STU and 93 Open, I assume 93 open is unrestricted boost tables?

[Xian_1]

Originally Posted by ~The_Duke~

So I see 93 STU and 93 Open, I assume 93 open is unrestricted boost tables?

Yep, it shows STU legal 100 octane, STU legal 93 octane, and then a higher boost (open) map 93 tune.

[~The_Duke~]

So after I did downpipe, then did the fiddling with the OTS tune to make it STU legal I am still over boosting to close to 19 PSI... That is with factory boost tables.

I can only imagine how awesome a 100 octane map is...

I wish I could find 100 octane around here to be able to official run that. I think there might be 1 station near road Atlanta that sells it and maybe one on the way to the mountains.

[Xian_1]

Keeping in mind that I hadn't seen the plots above before now, it's interesting to see that my seat of the pants was reasonably well calibrated... the 100 octane tune felt faster than the 93 "Stage 2" map.

[Rizen]

Originally Posted by ~The_Duke~

So after I did downpipe, then did the fiddling with the OTS tune to make it STU legal I am still over boosting to close to 19 PSI... That is with factory boost tables.

I can only imagine how awesome a 100 octane map is...

I wish I could find 100 octane around here to be able to official run that. I think there might be 1 station near road Atlanta that sells it and maybe one on the way to the mountains.

Run some Torco. You can get up to 100 octane pretty easily with it, but it might be a bit expensive depending on how often you do events.

[Rizen]

These showed up today ...

[Xian_1]

Can't wait to help get these on your car!

[silverhks]

Originally Posted by Illini_STi

And here they are
Basically the 100 octane map behaves like the 93 open boost map lower in the rpm. At the top all three end up about the same.

Obviously this wasn't a 2nd gear pull, so not entirely apples to apples, but still a relevant data point.

OK that is significantly more than I was expecting. It seems subydude was right. One more thing to get sorted this year.

Originally Posted by Rizen

These showed up today ...

Very nice. What were you on before?

[Rizen]

Originally Posted by silverhks

OK that is significantly more than I was expecting. It seems subydude was right. One more thing to get sorted this year.



Very nice. What were you on before?

Stock