Break-in mileage of street tires prior to AutoXing with them

Chris Landi · **Joined:** Mon Mar 08, 2004 6:31 pm **Posts:** 579

Graham,

I was running new Carbotech Bobcat pads and was progressively braking later and later. They allowed me to go deeper than the stock pads. Now that I've been racking my mind, I was in 4th gear the one time I overdrove that right hand turn immediately following the straight. I needed it to go the extra distance. I should have done some trail braking but I'm not experienced enough to brake smoothly during a turn yet. Hell, I should have tried during the T&T!

The STi is *very* fast to 80mph and then just fast after that. The gains that the initial traction related acceleration bring about will diminish between 80 and 100mph. As compared to a vette, the top end is weak and the gearing is too short.

Chris Overcash · **Posted:** Tue Mar 01, 2005 2:43 pm

Graham Jagger wrote:

Opinion On:

I beleive you had to be darn close to 80mph. If you topped out 3rd gear and held your braking to the very last second. I managed to get to about 68mph. I couldn't get the car to sit still coming out of the offset and lost acceleration time. I also had street pads still on the car so I backed off on my braking distance for the turn onto the runway.

The C5 and STi may run the same 1/4 mile times. But I would love to see the side-by-side split times for 60ft, 200ft, 800ft, and final trap. I would expect the STi to be quicker out of the gate. AWD and a fast winding 4cyl. I would expect the C5 to catch it mid track where the V8 comes into its own and traction is no longer an issue. Even in Competetive Mode the C5 still gets wheel spin if launched hard.

I would expect the same to happen on that element. The STi transitions quicker and winds up faster. Then the C5 catches it down the straights.

Opinion Off:

Now I got a few rides in that new C6. It makes my C4 look bad, very bad... The car never felt like it was going to loose control. On EMT runflats no less. He almost hit 80mph when I got him to brake a little deeper.

Graham

I agree. I haven't seen the split times either but I believe the Sti is definately faster up to 70 or so. My car seems to pull the hardest based on what I feel in 3rd from 75 up to a little over 100 where it redlines.

FYI: If/when you buy a C5/Z06 competitive driving mode DOES NOT stop wheel spin at all. It is yaw control only. It will straigten the back end out if it steps waaaayyyy out on you. If you can keep the back end behind you they will spin until you burn em off.

Vincent Keene · **Posted:** Tue Mar 01, 2005 2:53 pm

Chris Overcash wrote:

If you can keep the back end behind you they will spin until you burn em off.

Bragger! :mrgreen:

Chris Overcash · **Posted:** Tue Mar 01, 2005 3:03 pm

Vincent Keene wrote:

Chris Overcash wrote:

If you can keep the back end behind you they will spin until you burn em off.

Bragger! :mrgreen:

LOL....Nah just don't want to see Graham attempt a high rpm sti-type launch in competitive driving mode thinking it will minimize wheel spin if/when he gets a Z06.

I don't have anything to brag about unless we can brag about DFL's. I should have plenty of those this season trying to chase that C6 and Elise.

Brian Herring · **Posted:** Tue Mar 01, 2005 3:07 pm

Chris Landi wrote:

Chris,

You still me be correct .. It's a matter of if I was in third which Dick may be correct in stating that it tops out at ~76, or if I was in 4th to get above 80. I *know* I saw higher speeds than 76 but I can't recall which gear I was in. If third..then most likely not. I do recall some mis-shifts during the following turn but have no clue as to what gear I was in..I'm confused now

but could swear I was going faster. I'm going to set up my digicam at the next event to follow my speedo, so hopefully the vette guys are doing the course and hopefully they'll make a fast section.

Just for reference:

- I was hitting the rev limiter WAY before the end of the back stretch in 3rd gear.

- My wife rode along with me the first time, until she saw I was going into 4th on the back stretch, and then opted out of anymore ride alongs.

- Everytime, I was DEEP into 4th gear, and I was around 5K *I believe* as I would hit my 'rev indicator' which I have beeping at 5K.

- I did the whole course in 3rd or 4th gear after the first 1/4 of the course.

If you were working at worker station 5 in the morning run group during the second heat, you should have heard me downshifting there, and worker station 6 would hear me try second on two occasions, then I gave up and left it in 3rd.

Any futher indication of this would be I was doing the slalom in the 'elements' section in 3rd gear as well, with a downshift to second out of the slalom. Kevin Allen was there to witness that.

I can find the limited speed at 3rd gear if you like, but I believe it is in the late 70s, and I am still running the stock 225/45/17s, so it is not an instrument cluster off thing. Furthermore, I know I saw I was at least into the 80s on the back stretch at one point, from what the cluster said.

Didn't matter. Hitting the second cone on course nullifies all that speed.

- brian

Kevin Allen · **Joined:** Thu Aug 28, 2003 6:42 pm **Posts:** 3479

I was hitting rev limiter in 2nd (65mph) on that section & sometimes holding it, but the times when I shifted to 3rd I was low 70's. So Brian was probably going at least 120... :lol:

Actually, I would definitely believe he was in the high 80's. :shock:

Graham Jagger · **Joined:** Fri Aug 29, 2003 12:53 am **Posts:** 1718

I would never see 80mph on course. I've never hit 3rd gear on a THSCC autox. I've bumped redline in 2nd before and was right around 72mph.

If I launch anywhere above 1500rpm the starter will be getting a pebble shower. So I try not to light them up. Even then you can't just mash it. The 2nd gear shift will get the back trying to pass the front...

There is a drawback to the automatic trans for autoxing. The upside is I can left foot brake all day long since I've got 2 feet and 2 peddles :wink:

Graham

Scott Johnson · **Posted:** Tue Mar 01, 2005 5:51 pm

I probably held 3rd gear in the Celica for about 1 second before I'd start braking for the right turn after the straight. 2nd gear revs out to about 57 mph on the race tires, so I was probably only doing aobut 65 mph *maybe* 70 in 3rd gear.

Scott

MikeWhitney · **Joined:** Wed Aug 20, 2003 9:15 pm **Posts:** 4724

scottjohnson wrote:

I probably held 3rd gear in the Celica for about 1 second before I'd start braking for the right turn after the straight. 2nd gear revs out to about 57 mph on the race tires, so I was probably only doing aobut 65 mph *maybe* 70 in 3rd gear.

Scott

Yeah, Scott, I'm with you. I'm sitting here like "WTF are these people talking about top of 3rd and 4th gear ?!?!" 60 mph @ revlimit in 2nd, 3rd gear for maybe 5 seconds, I ain't doing more than 70 before braking.

Then again, we drive slow ass cars. But somehow we can turn some respectable times

Chris Landi · **Joined:** Mon Mar 08, 2004 6:31 pm **Posts:** 579

MikeWhitney wrote:

scottjohnson wrote:

I probably held 3rd gear in the Celica for about 1 second before I'd start braking for the right turn after the straight. 2nd gear revs out to about 57 mph on the race tires, so I was probably only doing aobut 65 mph *maybe* 70 in 3rd gear.

Scott

Yeah, Scott, I'm with you. I'm sitting here like "WTF are these people talking about top of 3rd and 4th gear ?!?!" 60 mph @ revlimit in 2nd, 3rd gear for maybe 5 seconds, I ain't doing more than 70 before braking.

Then again, we drive slow ass cars. But somehow we can turn some respectable times

Our third gear won't last 5 seconds at full throttle. We only get a 20mph or so increase out of it. For reference, you need 5th gear to complete the 1/4 mile. Gearing is very tight.

Brian Herring · **Posted:** Tue Mar 01, 2005 9:36 pm

MikeWhitney wrote:

scottjohnson wrote:

I probably held 3rd gear in the Celica for about 1 second before I'd start braking for the right turn after the straight. 2nd gear revs out to about 57 mph on the race tires, so I was probably only doing aobut 65 mph *maybe* 70 in 3rd gear.

Scott

Yeah, Scott, I'm with you. I'm sitting here like "WTF are these people talking about top of 3rd and 4th gear ?!?!" 60 mph @ revlimit in 2nd, 3rd gear for maybe 5 seconds, I ain't doing more than 70 before braking.

Then again, we drive slow ass cars. But somehow we can turn some respectable times

It takes a better driver to drive a slower car faster

All kidding aside, that was just what was going on. Believe it.. don't believe it... whatever. Peeps were in the car with me, people heard me shifting, so I am not worried about it. Now, if I can just harness all that speed and miss cones....

- brian

DickRasmussen · **Posted:** Tue Mar 01, 2005 9:41 pm

Mike,

Not having to shift is part of why you are so fast . . . driving is much less complicated when not having to deal with stuff like shifting and major speed changesand wheel spin . . . :wink:

Chris,

My current gearing in the formula ford would need 5th gear for a 1/4 mile run also. . . too bad it only has 4 gears

Third has only a 12 mph spread from red line in second to red line in third . . . about 2 seconds plus shifting time).

Isn't bench racing fun after an event!

Chris Landi · **Joined:** Mon Mar 08, 2004 6:31 pm **Posts:** 579

So, anyway, I'll be scratching up the new tires for about a week or so prior to the next event. See you folks there.

Kevin Allen · **Joined:** Thu Aug 28, 2003 6:42 pm **Posts:** 3479

Quote:

Yeah, Scott, I'm with you. I'm sitting here like "WTF are these people talking about top of 3rd and 4th gear ?!?!" 60 mph @ revlimit in 2nd, 3rd gear for maybe 5 seconds, I ain't doing more than 70 before braking.

You all need to ride with Brian in the STi - it's definitely one of those experiences that makes you go, "what the Hell just happened?" and "how the Hell did he just do that?" a lot. :lol:

It's a freaking turbocharged 3400 lb sedan, and he was running faster in 3rd gear through the slalom than any other car out there. :shock:

Kevin
(who ALMOST wishes that he had an STi, but would hate to have to listen to the crap he would get because of it, so he's happy with his ssslllooowww wagon :lol:

)

Brian Herring · **Posted:** Wed Mar 02, 2005 8:19 am

Kevin Allen wrote:

Quote:

Yeah, Scott, I'm with you. I'm sitting here like "WTF are these people talking about top of 3rd and 4th gear ?!?!" 60 mph @ revlimit in 2nd, 3rd gear for maybe 5 seconds, I ain't doing more than 70 before braking.

You all need to ride with Brian in the STi - it's definitely one of those experiences that makes you go, "what the Hell just happened?" and "how the Hell did he just do that?" a lot. :lol:

It's a freaking turbocharged 3400 lb sedan, and he was running faster in 3rd gear through the slalom than any other car out there. :shock:

Kevin
(who ALMOST wishes that he had an STi, but would hate to have to listen to the crap he would get because of it, so he's happy with his ssslllooowww wagon :lol:

)

Bah. I rode with Randy Melton, and I don't have crap on him. THere are too many other fast drivers out there who are SOOOO smooth that I would rather emulate.

I still think Kevin's quote is accurate at this point:

"Man, it is mostly the car. It's a *little* but him. Just a little bit"

If you rode with me at this point, you would be "THIS is fast? He is all over the darned place. This isnt smooth!!! What the heck is going on!! How'd he run FASTER like that."

I admit it.

Hi. I am Brian Herring. I am addicted to being an AWD hack.

- brian

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Break-in mileage of street tires prior to AutoXing with them

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