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Old 06-08-2007, 03:15 PM   #11
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Atx

Driving style can make a huge difference with a ATX. I let a friend drive my ZX3 last month. He shifted early and drove 2/3 of the course in 2nd gear. I stayed in 1st for the first 2/3 of the course. He won HS and beat me by 2.2


When I got off the throttle I was losing speed going into the corners. The added acceleration from the lower gear couldn't make up the time I was losing.

Sunday I'll see if I learned anything from this.
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Old 06-08-2007, 03:17 PM   #12
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Quote:
Originally Posted by Impaled View Post
I'm pretty sure holding the brakes will put all the stress on the brakes/axle

Someone correct me if i'm wrong.
It iwll put some stress on those systems, but not enough to cause a failure. The engine simply doesn't have enough torque.
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Old 06-08-2007, 03:24 PM   #13
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I have a 2.3 automatic and if I did that brake launch thing my tires spin. So should I just step on the accelerator?
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Old 06-08-2007, 03:25 PM   #14
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Yeah I launch it like that a lot, 70K miles, still going strong. I need a fix though cause now I have a short ram, it bogs down when I rev from all the engine heat and goes up and down between idle and 2K.
I lost a lot of the hardware for my stock airbox so I'm screwed now. Anyone happen to know the size on the screws and junk so I can get replacements? I'm making a thread in tech now so maybe someone can help.
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Old 06-08-2007, 04:16 PM   #15
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Quote:
Originally Posted by WeeAsp View Post
It iwll put some stress on those systems, but not enough to cause a failure. The engine simply doesn't have enough torque.
Yeah i know, was saying it for the guy talking bout the ATX being weak, no worries with the brake launch cause the tranny isn't being stressed much.
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Old 06-09-2007, 10:58 AM   #16
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Quote:
Originally Posted by Carrera26 View Post
just read the signature, and good luck!
I have brother.....many many many times

Thanks for the tranny pep-talk guys, the weak comment was mostly in regards to shifting manually.

I've read on here that the ATX is built for about 170 crank hp or about 150% of an unmodified, well running SPI. It doesn't seem enough of a margin to account for the stress of racing to me, the uneducated newb.

But if a turbo SPI is in the works (and you know you are thinking about it.....03_SPI_Sedan.... ), might as well upgrade the ATX as well. Lentech in various stages or Level10.
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Old 06-09-2007, 02:16 PM   #17
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Keep in mind that with AX, you really aren't stressing the car that much. Most of the stress is going to be seen in the tires and in the brakes.

The tranny should hold with little or no issue. Even shifting it. Of course, down shifting from 2nd to 1st at 50 MPH on an AX course isn't advisable...
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Old 06-10-2007, 11:01 AM   #18
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So you're saying (sounding very Carrera26-like) that I should just get out and do it w/out worrying about the transaxle....

Someday......someday.
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Old 06-26-2007, 01:13 PM   #19
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Thanks for all the input. I was planning on continuing to mod my SPI and do my first AutoX in the upcomming fall, but my plans have greatly changed.

I do hope to be doing my first AutoX before 2008.

I know "street racing" talk is forbidden, but I wouldn't count this- I tried some of your advice to see what would have worked best for me, I went to a huge empty parking lot with not cars in sight and had at it. I put it in drive and held the brakes and launched when I heard some creeking and I spun for a second then caught traction, and I was really let down with how little power I had once I caught. Then I tried in 1st and 2nd just about the same result. I mostly focused on the launch which is dumb because I know its the corners that matter. I did practice a tip I saw in a video posted a while back of using one foot to lightly use the brake while still giving it throttle around corners and it works great!

But all in all, I'm back to stock and I'm changing my plans so hopefully I will still be able to AutoX in the fall but we will see how my finances turn out...
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Old 07-04-2007, 12:14 PM   #20
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I've done this before and I dont get any rags because my car is automatic. Well sometimes yes but who cares ! ! ! just go at it have fun. I do it for the thrill and for building up my skills. ! ! !
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