[xluben]

nice steelies man. i did that to my ex's eclipse for winter mode.
nice numbers too! 8)

Thanks. Steelies work great for me. Had them on my last car for winter tires as well. Easy/free to swap each season, and I think they look pretty good on a black car

The steelies look very nice. Very conservative tune but I like the plot. Most people would ask me to get highest average hp out of the tune which would result in more of a bell shape and flatter curve with as much power coming on earlier as possible. You have a plot similar to my personal STi. Good approach, easy to drive at WOT.

Here is a sample (not one of mine) of what most people tell me to do:
http://i806.photobucket.com/albums/yy347/cottrilla/STi/dynocomperison.jpg

Basically to peak the torque sooner, and then have it drop off more quickly? That's the only way I could see the hp curve flattening out. The plot you posted has the torque curve peaking at a higher RPM than my car, and it dies off sooner, not what I would want. Power delivery from this tune is smoother and strong up to the top, very nice for daily use. I'm really happy with how it feels around town and on the highways.

Nice numbers, car sounds amazing btw!

Thanks!

 

[xluben]

Ah, that makes sense. I'd be curious to see the boost, AFR, and timing for that tune.

The torque curve for the baseline run looks a bit off to me. Pretty much flat with the peak at 4.5k

I do agree that that Stage 1 shows about as much gain as my Stage 2. I'm OK with a conservative tune, still is lots of fun!

 

[xluben]

Did nuke talk to you about switching to E85? He did my E85 tune and man, i am happy i switched over.

Yeah, he mentioned you by screen name He had brought it up when he did my Stage 1 tune and I hadn't even thought about it at the time. Since then I've been looking up more about it and I am strongly considering it (and supporting mods) for sometime this summer.

We should meet up sometime so I can see what to expect

It would be similar to yours actually but applied at stage 1 as opposed to with stage 2 hardware. 18-19 psi 10-11afrs at boost with some advanced timing. However, this just means that it is running higher WGD to compensate and probably a bit more fuel to cool because of restriction from the DP not letting the gas out fast enough. Yours is definitely better for the long run.
If it was stage 2 they bump up to about 22-23psi on STi and to about 20-21 on the WRX just because of the WRX IC. This shifts the curve up to show gains of about 100whp and 120wtq against stock which IMO is pretty damn aggressive.

I prefer your approach

Yikes, that definitely doesn't sound like what I want. Those Stage 2 numbers sound pretty crazy. I'd be curious to see how long those cars last... I'll wait until I have some more mods (TMIC, BPV, Fuel Pump, and Injectors are planned for an E85 tune).

Nuke does a good job of talking sense into me while tuning (I'm sure I could be convinced into getting an aggressive tune, but I'd probably regret it later). He doesn't want to see brand new cars blown up any more than the owners. He doesn't even use the Virtual Dyno program to tune for big numbers. In fact the logs don't get loaded into it until he is done, and that's only because I like looking at graphs

 

[xluben]

Should only be 15 or 20 minutes away from me (and even closer from my work), so meeting up shouldn't be a problem. I've done both of my tunes with Nuke on the 16" steelies and winter rubber. Didn't seem too bad, but you have more power so it might be a little more iffy. 17's definitely feel more solid though.

 

[xluben]

Should only be 15 or 20 minutes away from me (and even closer from my work), so meeting up shouldn't be a problem. I've done both of my tunes with Nuke on the 16" steelies and winter rubber. Didn't seem too bad, but you have more power so it might be a little more iffy. 17's definitely feel more solid though.

Oh i still have fun in the snow. I have the same winter set up you do for tires... Generals and Steelies.... but mine are NEON GREEN w/ Yellow LOL. I am just saying you get a better idea of how much fun it is with the summers on. The car just has a lot more roll with the winters... in my personal opinion. But if you get the E85 bug before Spring we can go out anytime. If you really want to see what E85 can do you should have Fuji take you for a ride ;D


I am off of McKnight and 36

Where are the photos of this setup? I will have to keep an eye out for you around town. My car was still completely stock when I swapped to the winter tires, so maybe I'll be in a for a nice surprise when I swap back to my stock tires in the spring.

If you have time, maybe we could go out sometime in the next few months, when the weather/roads are better than they are now. I guess I haven't followed Fuji's build, just read the first post in his thread on MNSubaru, but I didn't think it made more than an E85 09+ WRX (I didn't even know it was on E85 actually).

I work off Industrial, so it should just be about 15 min down Hwy 36 to your place.

 

[xluben]

I'll have to see what I can do about getting to a meet eventually.

Now I need to read the rest of Fuji's build thread...

 

[xluben]

I had some free time today and did a few more 3rd gear pulls. Torque at 3k was nearly identical to the pulls during the tune, but today torque was peaking a little higher (but at a similar RPM).

The HP also held on a lot better on the high end (climbing all the way to redline). The higher RPM HP peak makes sense. Not sure why the other pull started dropping so soon.

Baseline:
Peak HP at RPM: 239hp@6,000rpm
Peak Torque at RPM: 259lbft@3,200rpm
Stage 1:
Peak HP at RPM: 251hp@6,000rpm
Peak Torque at RPM: 294lbft@3,400rpm
Stage 2 (during tune):
Peak HP at RPM: 275hp@5,600rpm
Peak Torque at RPM: 316lbft@3,400rpm
Stage 2 (12/24 pull):
Peak HP at RPM: 298hp@6,100rpm
Peak Torque at RPM: 342lbft@3,500rpm

 

[xluben]

Talked to my tuner and he reminded me that we did flash it one last time (after the log that I used to post the first plot). He tweaked the top end a little and it looks like it helped a lot!

 

[xluben]

Also temperature could be different, slightly altering the curve. Even a hotter uppipe from some hard running can cause a small spike in boost. Also the road needs to be perfectly flat to get the proper data.
This is why I don't like road dynos, they are truely uninformative. I think the only way to do it properly would be to use some accelerometers. Logging RPM is horrible for dyno plots, if you ever look at a rpm log its all over the place.

Sorry, I will refrain from posting uninformative road dyno plots in the future.

 

[xluben]

Ya'll are saying Mcknight road, industrial etc.

Are you from the Pittsburgh area???? Just wonderin cause im from that area as well if you are and those are roads here too lolol. Nice graphs though, i'm only at stg 1 software and TXS CBE. No down pipe yet

Nope, MN. I suppose those are pretty common road names though.

Get the downpipe, Stage 2 will not disappoint! Butt dyno said it was even more of a step up from Stage 1 to Stage 2 than it was from Stock to Stage 1.

 

[xluben]

I prefer tuning done with real loads and real airflow, but I can see the advantages of using a dyno for parts of the tuning process. All tuning and pulls are done on a bridge that is nearly a mile long and flat. Atmospheric conditions were definitely different for the Stage 2 pulls.