Autoclub Speedway Times
 

Hey guys,

I want to set a realistic time goal at Autoclub Speedway. What are the fastest times a 370Z has gone around autoclub?

Preferably stock or lightly modded such as mine (CAI, CBE and tune with street tires)

I posted 2:08. I've seen videos of 2:03 however i don't know the mods and tires.

Of course there are heavily modded 370Z's that break 2min but i want to know whats fast with my mods or similar


Thanks,

From what I hear, see and read...2 minutes and under is the mark to beat. What do you consider heavily modified?

These guys are posting times I have seen for GTR's and they are not boosted!

http://www.the370z.com/track-autocro...-acs-vids.html

All 3 of us in those vids are not heavily modded. I'm personally only running Berk HFC's and Stillen G3 CAI's, with no tune. Stock suspension, hotchkis front sway bar, nismo bodykit, endless mx72 brake pads and bridgestone re71r tires.

My fastest lap of the day was 1:58.517 and there was plenty of room for further improvement. My hot lap video is the 1st one listed on that link.

Heavily modded to me would be some TT's or supercharged with upgraded suspension race tires etc

When i go i see a good amount of people under 2 min but i didnt know how easy that was for a stock/lightly modded 370Z

Easy...isn't the word i'd use. To be fair this is my 2nd time running the roval and I've run the infield 3 times before so i know the track much better now.

My 1st time running ACS i did a 2:00.9...but it took me some time to get there. The walls are intimidating and make you lift, also your line coming into the bank will make a HUGE difference.

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Wow! Nice times bro. So i guess sub 2 min it totally achievable. Is endlessmx72 pads street/race suited? do you have stock sport rotors? Your tires are a bit grippier than mine but according to reviews they are close enough it seems.

I feel like i can be heavier on the braking which would probably gain a second or two right there. It alos looks like you get on the gas a bit faster than me out of the turns. Do you have tracking control on or off?

Thanks! Sub 2 is definitely possible, my goal on this 2nd outing was to hit 1:59 and i just kept getting faster through out the day.

Endless pads are a street/track pad...the best benefit of these is that they will last you several track days with daily driving in between, they take hard braking like a champ and worked really well with my OEM sport rotors. Don't expect a huge difference in stopping power, but have confidence knowing that these will not melt on you and that you can drive home from the track and to work the next day safely :)

I recently switched to centric rotors because my oems were done and so far they're doing well.

I've been running with VDC off at all my track events, it just cuts throttle way too harshly and prevents you from getting on the gas earlier on corner exit.

The re71r is an amazing tire and will drop your lap times, so i highly recommend it. I was previously running the re11's which are also a great tire but a bit slower than the 71.

You're definitely right about braking, once you figure out how late you can brake into turn 3, turn 5 and turn 10 you should see your times drop even more


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I have watched a bunch of videos and you guys rock. You don't lift much on turn 1 as others do. :p

Also, are you running on 18 or 19 inch wheels?

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Thank you sir! As a group we are really improving and pushing each other to get to the next level, great bunch of drivers and people overall. I think our secret is that we are pretty open about sharing our knowledge with one another.

I am currently running 18's, just switched over from my 19" nismos to VMR 810's and i absolutley love them


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That is awesome, I hoping I come play with you all at the track sometime this year but it will probably be after ZDayZ. I need new tires and contemplating the 71R's but may stick with RE -11's because the 71R's don't come in 305's. What are your thoughts...

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Awesome! The more the merrier :) i don't run anything as wide as a 305, the widest I've gone is 285 on my nismo wheels with re11's.

I've been driving on the RE11's for a few years now, did all my track days last year except for one and i was very competitive in my class and pretty happy with them until i tried the 71's.

So because of the size limitation for the re71r, i had to go with 275's but the grippiness of the compound seems to have more than made up for the reduction in the contact patch. Hope that helps

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Awesome...thanks!

^^^ what Malko said. Yeah 2 mins is the benchmark for any car at ACS. Once you can do that you sort of "get it" so to say. Malko(eagle) and I have always been fairly close at all tracks, often times within a second of each other so it's been fun to progress with him. The only Z's currently running faster than either of us are actually 350's with aero(which makes a huge difference in which line you can carry through Turn 1 and 2). They are coming in at 1.52-1.54. The fastest time ever in by a 370 was paul dentice 1.53x from AE performance(paul walkers old company) Car was very light, well tuned, JRZ suspension and Paul D is a hell of a driver (and a really nice guy!)

I would expect a Z decently driven to do a sub 2:10 their first day at ACS(depending on experience etc) I think ACS was the third track day I ever did and can remember 2:10-2:12 oem everything and scared sh1tless. Our guys that have been running for like 1.5 years are starting to tap 2:05's. The 2 minute mark is a tough goal to hit. Once you are through it you are like, oh that's how you do it. I can easily see a 1.55 in my future-I'm sure Malko will be right next to me lol.

NA you don't need 305's they will slow you down. Like Malko I switched to the RC-1 and it is 275. The Re-71 or RC-1 are both large upgrades to a RE-11 or RS-3. The 275 size is a non issue in terms of overall stickiness and lap times.

Yes, easy is probably the wrong word to use lol. this is my 3rd or 4th visit to ACS and my best so far was 2:08. I think the 2 main areas of improvement i have are breaking later, and getting on the gas faster out of the turns. I keep VCS on though because one time i didn't and i hit that gas too early and spun. kind of nervous now to take it off.

I take the bank at about 110mph, what do you usually take that at?

Ya i think my next visit can be touching 2:05. sub 2 min is hard in my opinion because i felt like i was driving the sh!t out of the Z and got 2:08

Not a bad time at all, you have the FI TT kit though right? That much power on tap can make the car really tail happy lol

Coming into the bank i was probably somewhere between 135 and 141 mph. By the time i dropped down to the apex I'm still above 100mph, not sure exactly how much but after i hit that apex im back on the gas close to WOT.

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I don't have the FI TT kit. I just have Stillen G3 CAI, FI CBE and an Ecutek tune. Getting down to the nitty gritty, I have stock rotors and pads (sport package) , motul Dot 4 brake fluid, Redine Dif fluid, and Bridgestone Potenza S-04 Pole Position.

At the end of the bleachers just into the bank im right at about 131

I'm on stock Nismo wheels and I am TT so if I go with 71R's I will probably do 285 rear and 275 up front or go 285's square. Really just need to get to the track and get some seat time and instruction but I want to make my time there count as each trip for me is at least a 5 hour drive.

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Sorry had your car confused with HotRodz lol. Even so thats still very respectable given your mods, i was probably hitting speeds closer to yours my 1st time i ran ACS. I know my nismo aero helps quite a bit especially at a track like ACS, so that's a decent advantage for me

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Ya 2 thing i have a small disadvantage in:

1: Roadster (top up) = 150lbs+ extra weight
2: always have a passenger = 200 more lbs

so how much of a difference do you think each of those disadvantages add in time with all else remaining constant

totally throwing random numbers out but maybe .3 with 150 lbs and .5 with another passenger? .8 seconds total? more?

That additional weight could easily be a couple seconds right there. Also because it's a roadster you're missing a little bit of chassis rigidity that the hard top versions have and will probably experience some flexing of the chassis on the tighter/harder corners which i could see translating into some funky behavior when the car is transferring weight laterally.

I've never driven with a passenger during a hot lap so it's hard for me to say how bad it might affect my time.

I don't look but somewhere around 140. It is really the area that is 90% of the time of your lap. Just look at the map. Not sure on your setup, but on OEM suspension, you really wont be able to go much over 125/130 anyway because the compression in the 20 degree banked corner will easily compress the oem suspension to bump stop.

For having done it 3 times, 2.08 is not a bad time by any standard especially ina roadster. You going to chuckwalla by chance this month? I will be out there both days, can ride along with you if you go.

Also to Bshields, get rid of your OEM pads asap. Also get some good brake fluid. I no kidding have seen people burn through a set of OEM pads in one day and rupture their calipers, especially on a track like ACS which is very very hard on brakes. Our series will be getting 40% discounts on Endless products this year for participants. Endless brake fluid and MX-72's at 40% off is as good as it gets. Lot of guys like carbotech setup as well go 10F/8R. I could tell you I would personally be hesitant to get in a car as an instructor at ACS if the car had OEM pads.

Can't make it out this month to chuckwalla. But I would like to do another track day very soon. Next time we are at the same track I'd be down to ride with you. I always like to see what limits different z set ups can do

My last rack day, my OEM pads were at 90% life. Im def going to switch out my pads for the next track day. I have Motul Dot 4 brake fluid in now which seems to be pretty solid. How can i get Endless pads for 40% off. What are some other good pads you guys recommend.

Eagle, feel free to chime in as well.

Motul makes good brake fluid, i used to run their RBF 660 and was pretty happy with it.

Currently running Brembo LCF and its just as good if not a little better. If you want endless pads for 40% contact Corner 3 garage and tell them you're interested in running nissan challenge

949-380-0801


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Basically that, Endless USA went in big for a sponsorship with the C3 series. Couldn't believe it but they have not been doing all that great for last few years. Their pads are the best I have ever used, but they are a bit pricey(worth every penny though). At 40% though, that's huge. They are going to be very strict on the deal being for participants only. There will be some contingencies like stickers on car. Need to be verified that you are attending events etc. The details are still being worked out, but yeah just call john and tell him Greg and Malko sent you.

Wow! just looked up pricing and they arn't cheap lol. I'll def look into getting the discount for sure. Say i don't meet the requirements or there are things I can't commit to in order to get the discount, what other pads work well for street/track use?

I haven't tried other pads, once I found something I liked I kind of just stuck with it.

I hear CarboTech and StopTech pads are pretty good, but never had any experience with those on the track or street

Carbotech's are solid, they have a much different characteristic than endless does. I like them , but they wear out quick. There is a reason they are half the price of endless, they only work for half the time.. You can easily get a full season out of a set of MX-72's and probably half of the next season if you track 2 times a month. I literally ran my MX-72's down to the metal and never noticed any fall off, they lasted me over a year.

Currently running Hawk DTC's and they are WAY too much for any street tire. The RE-71 might be able to handle it(since it really is a 100 treadware tire lol), but they work almost perfect with the RC-1's so far. I don't like the characteristics of the DTC's but they stop so friggin hard that you can't really complain about them either-they get it done quickly.

I will be trying a set of Endless ME-20's next, it's their entry level racing pad and I hope it's similar to the DTC's with more feel and more linearity to it.

StopTech Rotors= awesome value no questions a buy. Stop Tech pads= just don't.

So StopTech rotors are good!

Stoptech pads are bad. Why?

Also, why do you say Hawk DTC are too much for a street tire? Are those pads street/race or race only pads?

Stoptech rotors are best bang for buck you can find. Slotted fronts and just buy blank rears.

Hawk DTC's are a true racing pad. They will overload a street tire easily, and they will trigger abs very badly. if the tires can't handle what they do. But they are magnificent at stopping the rotors.

I ran a 2:07.8 at ACS in my stock 2014 SRT Grand Cherokee, if that helps.

http://www.the370z.com/members/rn-sh...s-off-my-z.jpg

lol I remember you! We were in the same heat. What do you post with your Z and what mods do you have?

We seriously need some boosted 370's competing. anytime you want to go out let me know.

Right on, always open to learning and meeting other that share the passion. Thanks!

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Damn! That's pretty fast in a car that big and with a passenger to boot!

To be honest, I never broke 2:00 at ACS. 2:03 was my best. I think I lost all my time in 1 and 2 and brake zones. Mods are listed in my sig, but at that time I was still on stock tires and brake pads. Also only Whiteline front sway and Swift springs at the time. I could dive deeper in the SRT than I could in my Z, especially into 12.

Thanks! That is my wife in the passenger seat and the one whose name is on the title of that SRT. Haha.
It is a big car, but it is quite fast. Especially in Track mode, 30/70 split 4WD and 475 ft/lb torque makes corner exit a big spot to gain speed on the RWD cars. And the brakes are awesome, found myself being able to dive a lot deeper than the Z into turn 12. It did lose on speed on the front stretch due to the high drag coefficient.
I ran that stock, stock Brembo brakes, Perelli PZero tires.