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Old 11-04-2011, 01:06 AM   #1
SoCal11Subie
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Default Subie Newbie Q's. Accessport + SF + Torco

I have a 2011 WRX. Stock with about 2k miles.

My accessport is in the mail, and i plan on getting the SF and Airbox next week. I want to keep my 100k warranty intact since i drive alot for work so im planning on this being the extent of my mods for a while. I can unmarry the Cobb and pop the stock airbox on in 15 minutes if necessary before heading to the dealer.

I have read a lot all around this forum and others about Torco (http://torcoracefuel.net/pro-accelerator.html) for boosting my octane and it seems highly recommended, and since i live in Cali i am kinda stuck with the 91 around here. I have looked at the recommended mixture and it looks like if i add about 16oz of Torco at each full fillup i will have gauranteed 93+ octane (closer to 94+, but trying to be higher than lower). It will cost me about $10 addl per tank, or less if i buy in quantity. I always fill with Chevron or Shell 91 as it is my best local option.

I will flash the Stage 1+Cobb SF 93 map and do some initial logging to look for knock. I expect all will be well and will be satisfied. The increase in power over the ACN91 map is pretty significant according to the Cobb charts, and since this is all the modding i can really do i want all the power i can get.

Before I do all this, i wanted to see if anyone is doing the same thing utilizing Torco on Cali 91 with a similar setup, or ideally has been doing this for a period of time and has any feedback for me.

Thank you in advance for input. Im happy to be a new subie owner!
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Old 11-04-2011, 10:01 AM   #2
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Originally Posted by SoCal11Subie View Post
I have a 2011 WRX. Stock with about 2k miles.

My accessport is in the mail, and i plan on getting the SF and Airbox next week. I want to keep my 100k warranty intact since i drive alot for work so im planning on this being the extent of my mods for a while. I can unmarry the Cobb and pop the stock airbox on in 15 minutes if necessary before heading to the dealer.

I have read a lot all around this forum and others about Torco (http://torcoracefuel.net/pro-accelerator.html) for boosting my octane and it seems highly recommended, and since i live in Cali i am kinda stuck with the 91 around here. I have looked at the recommended mixture and it looks like if i add about 16oz of Torco at each full fillup i will have gauranteed 93+ octane (closer to 94+, but trying to be higher than lower). It will cost me about $10 addl per tank, or less if i buy in quantity. I always fill with Chevron or Shell 91 as it is my best local option.

I will flash the Stage 1+Cobb SF 93 map and do some initial logging to look for knock. I expect all will be well and will be satisfied. The increase in power over the ACN91 map is pretty significant according to the Cobb charts, and since this is all the modding i can really do i want all the power i can get.

Before I do all this, i wanted to see if anyone is doing the same thing utilizing Torco on Cali 91 with a similar setup, or ideally has been doing this for a period of time and has any feedback for me.

Thank you in advance for input. Im happy to be a new subie owner!
Hi there. Thank you for your purchase!

I would get some data logs when you are running the octane booster (see video below). Assuming that it does get you to 93 octane, remember you are starting with CA 91 octane which is worse than the "normal" 91 octane available in other states. We don't generally recommend octane boosters. Most of the store bought bottles won't do much for octane (rated in points, so 5 points will only give you 0.5 octane increase). I don't know a whole lot about Torco, but it does appear to different than the standard octane boosters. I would just make sure your calculations are correct based on the amount of gas you are putting in.


Bill
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Old 11-08-2011, 04:42 PM   #3
SoCal11Subie
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Thank You!

I received and installed my AP last night finally, Stg1 ACN91. Wow the driveability and pull in the upper RPMs is much improved. Very satisfied so far. I do have a K&N Drop-in filter however, so i will log for any side effects soon.

Also, I ordered the TORCO and called COBB SoCal to verify they had the SF for my car in stock (they did) so im picking it up in a week. At that time i will install the SF, mix in the TORCO, and flash Stg1 SF 93. Then i will log again and post for your (much appreciated) feedback.

TORCO: I have done so much research recently about it, talked to some acquaintences that have used it, and come to the conclusion that it does work for "boosting octane" although it does it a lil differently. Its not the exact same end result as mixing in 3 gallons of 100 with 11.5 gallons of 91 to get a tank of ~93. It is more of an "anti knock" solution per se, that would let the 91 perform with the same characteristics as higher octane. Going conservative to just get 93 octane out of 91 octane is really no problem for it, but if you are looking to bump up to 100 using alot of torco, performance will be different that actual 100 octane. And at high concentrations there will be a bit of MMT residue that wont all burn off.

To make a 14gallon fillup of 91 turn into suitable 93, you only need 12oz of TORCO. Actually 11.2 oz according to their chart, but since im starting with SoCal 91, im going to bump it up a tiny bit more. The levels of MMT according to their MSDS at this concentration is very, very low. Running a simple injector cleaner every few months or a yearly mild SeaFoam treatment would take care of anything that did build up i suppose.

12oz of TORCO costs $8.50 shipped (buying 6 quarts at a time, good for 16 tanks of gas), and much cheaper if you go all in for a 5Gallon pail... Ill test the waters prior to that purchase.

Thanks for reading.
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Old 11-08-2011, 04:57 PM   #4
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I'm interested in this as well. Look forward to seeing your results. Just did my sf acn91 map. Found that the hwg map was not the way to go. I got to 21.2psi. Hitting 16.8psi a of right now. I will do a few more logs to make sure.
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Old 11-08-2011, 05:12 PM   #5
SoCal11Subie
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16.8 on the normal wastegate map? that should be ideal. You should never try the HWG according to COBB unless boost is low and trying to get up to about 16.

How does the SF sound? I like loud intakes and i hear it blasts! With windows up cruising easy tho it like stock silent still right?
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Old 11-08-2011, 06:06 PM   #6
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At first it was only hitting like 14.9. I tried the hwg map because bill from cobb told me to try it. I think it was the gas I was running though. The intake sounds so sick. No bov needed, hands down best intake I've ever heard.
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Old 11-08-2011, 06:13 PM   #7
SoCal11Subie
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Understood!

I currently have the factory airbox mod (cut out the circle) and a K&N, it let me hear the turbo and the BPV a little bit finally. Stock was so silent i couldnt deal.

I really want the SF sound that you describe. The vids i watched on youtube about it are sweeeet!

Have you thought of trying to make some 93+ octane and trying that map? Normally id say "eh" to something like this... but according to cobbs OTS dynos its like 10hp/20tq between the 2! Ill take it if i can get it running safely for cheap.
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Old 11-08-2011, 08:34 PM   #8
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Yeah I have considered it, but I am going to wait for now. The sound of the intake is even louder than the youtube videos but it is so sick. My friend is hating right now. lol. I was in another friends sti that had the aem intake and it didnt sound as good at all. I will look into the octane booster later though.
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Old 11-10-2011, 04:43 AM   #9
SoCal11Subie
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When looking at a 3rd gear pull log, a decent amount of fine knock learning means I probably need higher octane right? I have 1s through 4s in rpms above about 4k. Everything else looks fine.

Ill try and post up the log tomorrow.

Thanks.
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Old 11-10-2011, 07:32 AM   #10
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Originally Posted by SoCal11Subie View Post
When looking at a 3rd gear pull log, a decent amount of fine knock learning means I probably need higher octane right? I have 1s through 4s in rpms above about 4k. Everything else looks fine.

Ill try and post up the log tomorrow.

Thanks.
What map are you running now? Is this with the torco?

Bill
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Old 11-10-2011, 01:01 PM   #11
SoCal11Subie
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This is on the 93 map in the realtime slot and the acn91 in the base.

I filled my empty tank with 3.5gal 100octaneVP and 11gal 91, before switching the realtime to 93.

https://docs.google.com/spreadsheet/...kM0Z3NnbHBqVlE

I think at cell 63 is where i flatfootshifted into 4th gear before letting off, and got a tiny feedback knock.

Torco tests next week.

Last edited by SoCal11Subie; 11-10-2011 at 04:20 PM. Reason: Added Log
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Old 11-10-2011, 07:58 PM   #12
SoCal11Subie
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I think my log looks good for the pull, but i am concerned about the Learned Knock. I did drive around a little easy after the initial flash to settle things in.

Please tell me what you think.
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Old 11-11-2011, 08:41 AM   #13
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I think my log looks good for the pull, but i am concerned about the Learned Knock. I did drive around a little easy after the initial flash to settle things in.

Please tell me what you think.
The learned knock is not good. The octane booster either isn't effective enough for the 93 map or you've had some issue all along. I would get a baseline by running your normal 91 octane fuel and reset the ECU (via troubleshooting menu). This will erase the 93 octane real-time map and you'll be running the 91 ACN map (verify this via the show current map function in the tune menu).

Bill
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Old 11-11-2011, 10:46 AM   #14
SoCal11Subie
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Thanks, yes i didnt think so. I have a K&N drop in on the car right now too, that could be causing some issues too? Im switching back to ACN91 this weekend and heading down to COBB SoCal to pickup an SF. Im also picking up the TORCO. We will see if i can figure out a mixture to iron this out after that. Will post back with some more logs later on.
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Old 11-11-2011, 10:52 AM   #15
SoCal11Subie
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Double Post, oops./

Last edited by SoCal11Subie; 11-11-2011 at 10:52 AM. Reason: Double
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Old 11-11-2011, 12:45 PM   #16
PearlRex11
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Nice. You are going to love that intake man. Sounds like a monster.
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Old 11-11-2011, 01:53 PM   #17
Cobb Tuning
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Originally Posted by SoCal11Subie View Post
Thanks, yes i didnt think so. I have a K&N drop in on the car right now too, that could be causing some issues too? Im switching back to ACN91 this weekend and heading down to COBB SoCal to pickup an SF. Im also picking up the TORCO. We will see if i can figure out a mixture to iron this out after that. Will post back with some more logs later on.
Generally speaking, you shouldn't have any major problems with an aftermarket panel filter, although it can impact flow around the MAF sensor in theory.

Bill
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Old 11-12-2011, 04:46 AM   #18
SoCal11Subie
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Wow! TORCO is no joke! I was skeptical at first when I added only half a can (16oz added to 14 gallons of Cali 91) but I reset my ecu, did some easy and hard driving, then logged a completely smooth 3rd gear pull. This is on the Stage1 93 map.

Its better than 3+ gallons of VP100 mixed in... and much cheaper.

I'm going to keep an eye on the rest of the tank, and see if I can back down to 12oz which is the proper mixture according to TORCO to achieve 93.X octane.

Very satisfied tonight! Will be headed down to Rancho cucamonga to buy several quarts directly from the TORCO retail store on Tuesday.

Posting via my Droid, but ill attach log in the morning for Bill to hopefully have a quick look at to verify my findings.
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Old 11-12-2011, 11:30 AM   #19
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That's awesome. I might be looking into this in the future. Please update and post your logs, I will be looking forward to them.
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Old 11-12-2011, 02:43 PM   #20
SoCal11Subie
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Old 11-13-2011, 01:37 PM   #21
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I am new to reading these logs so take my words with a grain of salt. I am curious about the - Boost Error on M,35. I was told that you shouldnt have - Boost error at WOT. Maybe Bill will post a response to that log so that we can continue to learn to read these. Did you post this on the Cobb forum as well?
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Old 11-13-2011, 01:48 PM   #22
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I didn't post it there. He seems pretty active here so I figured I'd wait for him to get a sec to see it. I'm not sure about the error either.
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Old 11-14-2011, 10:02 AM   #23
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Log looks good. No knock. I would continue logging pulls, however, to see what happens with fine knock learning over time.

As far as boost error, it is just (target boost - actual boost), so positive values mean you are under your target and negative values means you over. Your goal is to be about +/- 1 psi within your target during your WOT 3rd gear run (given time for the turbo to spool after going WOT).

Bill
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Old 11-16-2011, 04:44 AM   #24
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Ok so i visited Cobb Socal today, and what a great shop! VERY friendly and knowledgable people! Even gave me a behind the scenes tour.

I bought and installed my SF intake and box, went without a hitch. The BPV sound is AMAZING and definitely my favorite part, but the intake is fairly loud for days where im just poking around town with the wife. She prefers when i drive chill tho, and if i shift all my gears at 2700rpm the intake is completely silent. 2700rpm is just enuff to get moving without being a total dawg too. Works for me! THANKS COBB!

Was running the S1 ACN91 SF in my base flash, and the S1 93 SF map in realtime slot. Everything was great, but could only get 16.2 psi (which is +/- "on target" i know, i know) so i flashed the HWG version of those 2 maps into my slots. Consistent 17.2 psi, no knock or FKL after some running around town and 2 pulls... everything is running GREAT!

I am currently still putting in 16oz of TORCO (half of the Quart bottle) to 14.5 gallons, but will try out adding only 12oz soon when i have a chance to go out logging again.

I went to TORCO in Rancho Cucamonga after leaving Cobb, and bought 2 cases (6 qt per case) of additive directly. Very nice employees there too! And i learned that if i sign up as a reseller then the torco gets MUCH cheaper and free shipping. My kinda mother-in-law has one so im going to see if she can hook me up.

I have my WRX right where i want it!!!
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Old 11-18-2011, 12:59 AM   #25
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I took about a 10 minute logging session tonight, all types of driving, but pretty aggressive overall. Several trips to redline in a variety of gears. Also bogged out 4th and 5th a little with some 2000-4000rpm WOT just to get logs of what might happen.

Logs look amazing! Not a single knock event or any learned knock. General boost at 17psi, with a max of 17.8 while bogging 4th gear. Power is very smooth feeling.

Bill, any chance i could post up such a long log or email it to you as a one time favor to just skim over and maybe look at the 100% throttle portions to let me know if i have anything to worry about or not? This is where im leaving my car for the next 3-4 years as a high mileage commuting daily driver, so id like to know im OK. Ill even paypal you a little cash for an in-depth look if needed.

Base flash: Stage 1 +SF ACN91 HWG
Realtime: Stage 1 +SF 93 HWG

Running 14.5 Gallons of SoCal chevron 91 with only 12oz of Torco added.

THANK YOU!
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