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Old 03-25-2012, 07:10 PM   #101
AllOutZX2
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Quote:
Originally Posted by DoomsdayFAN View Post
Let me ask you this... what is harder on your car overall: Flashing vs Power Breaking?

I seem to get pretty good thrust off the line when launching at 2k RPMs, but I get some tire spin when doing that. I've never tried flashing it, but maybe I'll give it a go. It just seems like it might be more of a shock to the system and that's what worries me. LOL, I know I'm being hard on it to begin with when doing this stuff either way but I'd still like to choose the lesser of two evils whenever possible.

Is it bad for your tires to run less air in them than is recommended? Like, I figure on track day, I let air out right before I go, then when I'm done, I'll stop by the nearest gas station and fill them back up. Hopefully that doesn't kill my tires.

Otherwise, random video.... why are these guys SO slow. The Focus is insanely slow, and for a Turbo, the Honda Element isn't much better. With just my CAI, I bet I could beat both of them and get a better time.

Focus Sedan vs Honda Element (Turbo)
(Skip to 0:30 for the race)

YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.
Flashing shocks the converter and the driveterrain but not nearly as hard as a manual transmission. I recommend upgraded motor mounts.
Power Braking means increasing the transmission fluid temperature while you sit on the gas and brake.

I have over 45 passes on my set-up and I know Flashing the converter equals a faster 60ft time traction permitting.

For those videos, do you know if these are being recorded in a high altitude track? Also the Focus driver misses a shift pretty good.
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Old 03-25-2012, 07:23 PM   #102
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2008 2dr focus 216whp/226ftlbs
stock motor, stock intake manifold, open diff, cm fx300, 17x7 wheels w/ 215/40 neo gens
fswerks stage 2 @ 11PSI GT28r, fswerks 2.5" exhaust w/ high flow cat

13.84 @ 124MPH

new times coming built motor, top speed turbo kit gtx3071r turbo 500+ whp
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Old 03-25-2012, 08:20 PM   #103
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Quote:
Originally Posted by DoomsdayFAN View Post
What exactly is there to know about driving an ATX? I thought it was as simple as stomping on the gas and going?



I know what power braking is, but what exactly is "flashing"? Is that where you just stomp on the pedal at green, instead of power breaking and launching?

flashing is for flash the ecu with the xcal

I think I have about 35psi in my tires now. What's wrong with more air in the tires? How does less air help?
with less air is gonna be alittle bit more flat so is gonna have more grip
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Old 03-25-2012, 08:34 PM   #104
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Quote:
Originally Posted by blindreap3r View Post
2008 2dr focus 216whp/226ftlbs
stock motor, stock intake manifold, open diff, cm fx300, 17x7 wheels w/ 215/40 neo gens
fswerks stage 2 @ 11PSI GT28r, fswerks 2.5" exhaust w/ high flow cat

13.84 @ 124MPH

new times coming built motor, top speed turbo kit gtx3071r turbo 500+ whp
im going to guess you meant 104mph?
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Old 03-25-2012, 08:43 PM   #105
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Quote:
Originally Posted by AllOutZX2 View Post
Oh there is a big difference in street tires when it comes to air pressure. If track prep is not correct you really need to rely on the correct air pressure to get your 60ft down. First time I ran at the track I burnt the entire 1st gear and halfway into 2nd gear in my automatic. 35PSI, the old school guys laughed and told me to drop it by 10 psi then keep going down till it hooked. I usually run 23 psi in my tires seems to work well.

Even with street radials when you drop the pressure you see the sidewall start to bulge and get soft, to me that's an advantage. It may be not the wrinkle sidewall that bias ply slicks give but it's still another advantage.
i suppose with a more consistant auto it is more easy to figure out what works, when i used to use street tires, could never prove anything to change by playing with the psi, went to slicks and gave up on street tires lol what a difference...
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Old 03-25-2012, 11:37 PM   #106
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Automatic with JRSC, 2.4'' S/C pulley, header 2.5'', exhaust 2.25'', short ram intake
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Hopefully run a high 13 after I make a 3'' intake and buy a 3'' exhaust. Also put on my sticky Hankooks.
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Old 03-26-2012, 02:45 AM   #107
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Quote:
Originally Posted by AllOutZX2 View Post
Flashing shocks the converter and the driveterrain but not nearly as hard as a manual transmission. I recommend upgraded motor mounts.
I have the CFM Lower Engine Torque Mount (Race Version) with me, I just need to install it. How much will this help?


Quote:
I have over 45 passes on my set-up and I know Flashing the converter equals a faster 60ft time traction permitting.
So then you recommend that instead of power breaking, I just sit with my left foot on the brake, and my right hovering above the gas, and right as the light turns green, I let off the brake and simultaniously STOMP on the gas? I'll certainly try it, but it sound dangerous, as far as hurting the car. I'll take your word, but it still just sounds like it would be putting a massive strain on the car, even more than power braking.

As for the lower tire pressure, I'll certainly drop my two front tires down to 25 PSI and see how that works. I just hope it doesn't hurt my tires, as in, aren't they more protected when at 35 PSI?



Quote:
For those videos, do you know if these are being recorded in a high altitude track? Also the Focus driver misses a shift pretty good.
Of the Focus vs Element? I have no idea. It was just a random video I found. Of the Ricers, I was there that night (Type R vs Red Ricer & Type R vs Corvette) Those were not at high altitude; only at a 495 foot elevation.

I thought the Focus in that vid was an ATX?
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Old 03-26-2012, 04:46 PM   #108
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Quote:
Originally Posted by DoomsdayFAN View Post
I have the CFM Lower Engine Torque Mount (Race Version) with me, I just need to install it. How much will this help?

So then you recommend that instead of power breaking, I just sit with my left foot on the brake, and my right hovering above the gas, and right as the light turns green, I let off the brake and simultaniously STOMP on the gas? I'll certainly try it, but it sound dangerous, as far as hurting the car. I'll take your word, but it still just sounds like it would be putting a massive strain on the car, even more than power braking.

As for the lower tire pressure, I'll certainly drop my two front tires down to 25 PSI and see how that works. I just hope it doesn't hurt my tires, as in, aren't they more protected when at 35 PSI?

Of the Focus vs Element? I have no idea. It was just a random video I found. Of the Ricers, I was there that night (Type R vs Red Ricer & Type R vs Corvette) Those were not at high altitude; only at a 495 foot elevation.

I thought the Focus in that vid was an ATX?
Stiff engine mounts keep the driveterrain from flopping around, they also keep wheel hop down, they also improve traction.

As with anything if your worried about hurting your car you should leave it in the spectator area. Please don't take it the wrong way just Drag Racing to some degree isn't easy on a car but it's no different then your average street racer pounding the shit out of his car from stop light to stop light and admit it you've done it... everyone has.
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Old 03-26-2012, 07:19 PM   #109
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Well, I'm keeping my figures crossed that assuming I get a near-perfect launch with these mods:

CAI
67mm TB
4-1 Race header
2.5 Flex
Stealth Exhaust
Tune
Lower Engine Torque Mount

Empty Car (take out the spare tire/jack/tools/etc)
25 PSI in the front tires
Flashing (during the launch)


...that I'll be able to run at least somewhere in the mid-15s.
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Old 03-27-2012, 01:41 AM   #110
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power braking... you don't do that at the lights...maybe in the burnout box

YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.


brake-torquing... you do do this at the lights.
You;ll need to practice and find the cars sweetspot.
This is used to load the torque converter, trans, and driveline before launching. Do not load before the lights start dropping, the longer you do, the hotter the tranny gets. light hits let loose and throttle it. you want the torque converter to flash over just after you throttle it. you'll know when your launching at the right rpm as you should get some slight tire squeel with street tires, keep throttling it and let them grab. If you get wheelhop, get out of the throttle immediately and let the race go, its not worth breaking the car to try to win something you've pretty much lost already. If your tires break loose back of and get right back into it. Don't try to push through the burnout, you'll lose more time than backing out and getting back into it.
Also a tip I don't see anyone telling you, don't pull up to the light in the track everyone is using, its plenty wide to launch with your tires slightly out of the tracks where the tac isnt worn off.
YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.


Oh, and please explain how your supposedly flashing a converter with the method you described
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