Flatlander937's 2009 Mazda3i autocross prep/progress thread - Page 2 - Mazda3 Forums : The #1 Mazda 3 Forum
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post #11 of 56 (permalink) Old 04-10-2013, 09:07 PM Thread Starter
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Originally Posted by Adam3s View Post
Keep plugging away Tony! Each event is a learning experience.
Thanks! Yes it is... I realized watching the videos that I forgot to pull my seat forward so my arms are at ~90 degrees on the wheel... I remember last year that made a MASSIVE difference in how well I could control the car, one of the pro drivers showed me that and it cut about 3 seconds off my lap time immediately.

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Totally awesome .. Keep it up ... Where are u competing ?
In the Cincinnati, OH region. I'm actually in Dayton, but the Western Ohio Region doesn't have such a great event site, though I'm going to make it a point to go once or twice since I can get more seat time in there(less participation = more runs).
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post #12 of 56 (permalink) Old 04-27-2013, 02:30 PM Thread Starter
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Well the temptation to go to STF and just have fun is far too great. My motor mounts are on the way out and I want to take care of them for good.

I'm also coming to realize I won't be competitive for probably a few years... but I want to actually drive faster in raw time more than anything... so I'm going to STF which will allow a few performance upgrades and suspension shenanigans.

I'll actually be registering in the local "STO" street touring open class... which is an attempt to be a catch-all for all of the street touring classes, to be lumped together and become a PAX class much like our wildly popular tire index class. Larger classes with more participation are more fun than single person classes.
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post #13 of 56 (permalink) Old 05-25-2013, 02:55 PM Thread Starter
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Had Points events #2 and 3 last weekend. I did OK on Saturday, I know I left some time on the course as I had 2 runs that were 1 sec faster than my cleanest, but I hit a cone in the slalom each time.

On Sunday I was real happy with my time considering I'm all bone stock on all season tires.




And the results are here.. click on the respective links for each event:

http://cincyscca.com/autocross/scheduleresults/



The track was just slightly different each day to change things up.

I was running in STF to start accumulating points for this season despite having nothing done to really be in that class YET...

However I've been working with Dynotronics and tuning the ECM... should have this done before the next event. Details on that are going on here:

http://www.mazda3forums.com/showthre...451105&page=29


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2009 Mazda 3i Touring /// Hawk HPS front pads /// Goodyear Eagle GT 205/50R17 on stock wheels /// Ghetto fabulous filled motor mount

Guinea pig for Dynotronics tuning.
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post #14 of 56 (permalink) Old 05-31-2013, 01:10 PM
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Well the temptation to go to STF and just have fun is far too great.

... but I want to actually drive faster in raw time more than anything... so I'm going to STF which will allow a few performance upgrades and suspension shenanigans.
This was my curse. I was never super competitive in STS2 with my Miata (had a guy in my class that podiums at the Nationals), but I held my own and had good PAX times. Then the mod/speed bug bit, and my mods would have pushed me into SM where an N/A Miata would just get murdered. So, I left AutoX behind and started doing track days.

Some guys are happy in AutoX, others it's like a gateway drug to other forms of racing. Either way, I think it's important to enjoy the car and the racing.

2007 Phantom Purple hatch; JBR RMM/busihgs/shifter plate, Koni STR.t's, Michelin Pilot AS3's, Spin on oil filter conversion, stubby antenna, Kenwood KDC-X997 hu + Sundown Audio SA12 + Infinity speakers + JL 320.4 amp, debadged and door edge guards removed, Lamin-X + indy fog mod, aluminum AC knobs, DIY SRI, TRS 5000K HIDs, more coming.
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post #15 of 56 (permalink) Old 05-31-2013, 08:32 PM Thread Starter
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This was my curse. I was never super competitive in STS2 with my Miata (had a guy in my class that podiums at the Nationals), but I held my own and had good PAX times. Then the mod/speed bug bit, and my mods would have pushed me into SM where an N/A Miata would just get murdered. So, I left AutoX behind and started doing track days.

Some guys are happy in AutoX, others it's like a gateway drug to other forms of racing. Either way, I think it's important to enjoy the car and the racing.

Oh I definitely know that is what it is leading to

However I think autocross is best for me right now because it requires minimal time dedication(more time with wife and baby), minimal $$ to participate(spend more to go faster of course, but it's still plenty fun learning the car as it is), and I'm learning the basics.

I'd like to eventually enter a LeMons race some time for the heck of it, but what I used to be into was 4x4/Jeep offroad stuff.



This was the Jeep that I bought when I graduated high school. I bought it thinking "eh I'm only going to put 31s on it and call it good" then a couple weeks later I left the Chrysler dealer I was working at for my current employer(a LARGE used car dealer... hint hint) with a huge pay raise... so I decided to go for 33s and a small lift...





Then I wanted more and found Pirate 4x4 and decided to learn how to weld/fab/etc(and some of it shows) and put a D60 and D70 under the Jeep, stretched the wheelbase, and all the other stuff that comes with that. Overall it was a solid performing rig. I really needed to add on to the roll cage and I had a winch that I never got around to installing before I sold it... the only mistake I made was that I did this crap to it before it was paid off... so I sold it once I could get what I needed to be rid of the $200/mo payment since the baby arrived and daycare is about $800/mo. The wife didn't make me sell it, I wanted to sell it because I just lost interest in offroading as I couldn't afford to drive out to places and really wheel much, let alone feel like fixing what breaks and do the extensive upkeep when returning. I daily drove it for a year when we moved from VA Beach to Ohio since the only other car we had was my wife's Lancer(I had a 0.5mi commute from our old apartment... ha).






One of my favorite pics... it's a shame it was on a cell phone though:




Compared to a mostly stock Jeep for reference:




So you guys have an idea of where I came from. I have an addictive personality when it comes to automotive stuff... when I want to get into racing again, I'm going to build a buggy with intention of running the King of the Hammers. Watch this video... it is the most badassedness packed into 8 min you'll probably watch online.



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2009 Mazda 3i Touring /// Hawk HPS front pads /// Goodyear Eagle GT 205/50R17 on stock wheels /// Ghetto fabulous filled motor mount

Guinea pig for Dynotronics tuning.
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post #16 of 56 (permalink) Old 06-14-2013, 12:01 AM Thread Starter
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Been meaning to upload this pic... this is from the base dyno run before tuning:




Here was the dyno graph of my bone stock car. I'm fairly sure this dyno is pretty generous, but whatever... it's a base line tuning tool, not a dick measuring tool... especially not since it's a freaking Mazda3


Still finishing up the tune stuff, I have another auto-x event this weekend and I'll have this installed by then. I bought an OEM Mazda passenger motor mount since mine feels like it's made of jello... taking off from a stop in normal driving feels like you have to wind up a rubber band before it takes off

A lot of the aftermarket mounts are poorly designed or just too stiff. Plus all it will really take to make the stock mount good is to fill the giant air gaps with material so it's not able to stretch itself to the point of breaking.


Started off by taping off the one side to contain the mess:



Then used this 3M Window-Weld to fill in as best as possible from the side shown here. The stuff is THICK so once it's stuck it's not going to run or anything... so I filled it best as possible, then flipped it over, peeled off the tape, filled from the opposite side, then used my fingers in a glove to smooth it out a bit so it doesn't look like complete crap:






I did this on 6/11... going to let it cure until 6/15 and install it... auto-x on 6/16.

Going to buy a rear motor mount and do the same thing with the remaining window-weld at some point in the near future.


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2009 Mazda 3i Touring /// Hawk HPS front pads /// Goodyear Eagle GT 205/50R17 on stock wheels /// Ghetto fabulous filled motor mount

Guinea pig for Dynotronics tuning.
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post #17 of 56 (permalink) Old 06-14-2013, 11:02 AM
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Tony, what is happening between between 5.5-6K rpm? The line stops then takes back up again? What is going on with the torque curve? It doesn't look smooth and varied quite a bit from run to run?
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post #18 of 56 (permalink) Old 06-14-2013, 01:24 PM
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I did this on 6/11... going to let it cure until 6/15 and install it... auto-x on 6/16.

Going to buy a rear motor mount and do the same thing with the remaining window-weld at some point in the near future.
I did this my my RMM on my old car (before it got totaled.) It definitely helps, and it's a happy medium between suck and poly. That windshield weld is pretty thick stuff even before it sets, so I'd advise anyone using it to have a decent quality caulking gun ( I bent the handle on my cheapy just squirting the stuff into the mount). I believe 4 days to cure is probably conservative, as I gave mine 8 hours and reinstalled it. I did let it set for 24 hours before driving though.

2007 Phantom Purple hatch; JBR RMM/busihgs/shifter plate, Koni STR.t's, Michelin Pilot AS3's, Spin on oil filter conversion, stubby antenna, Kenwood KDC-X997 hu + Sundown Audio SA12 + Infinity speakers + JL 320.4 amp, debadged and door edge guards removed, Lamin-X + indy fog mod, aluminum AC knobs, DIY SRI, TRS 5000K HIDs, more coming.
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post #19 of 56 (permalink) Old 06-14-2013, 01:30 PM
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i'm going to do the same thing with JB Weld and see how it turns out. i looked on their website and the breaking points are way higher than anything it would see in this application
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post #20 of 56 (permalink) Old 06-14-2013, 02:11 PM
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Are you changing classes - the 'work' you did to he motor mount is not HS legal.

2008 New England Region SCCA HS Class Champion
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