Full slicks can make you a fast driver.

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8 February 2003
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45 min N. of Road America in Appleton WI
EDIT............ FULL SLICKS CAN GIVE YOU A FASTER LAPTIME!!!!!

Case in point. A friend of mine used to run a normal high end sportscar lap time @ Road America with r-compounds (2:40's) He then got a bit more seat time, and came across a set of factory Porsche Cup wheels/slicks (used qualifying or practice sets).

He immediately now runs a 2:31 lap time which only about 5 cars a season crack the 2:30 barrier, and usually are Mallet Z06's Porsche GT3's Ferrari 360's
etc. (as an example, PD Cunningham's SC NSX only ran about 2:25's)

In this video he has some bad (early turn-in) lines, and isn't as smooth as he could be, and still busted a 2:31!

Car is a turbo RX7

So if R-compounds are keeping you advanced guys from the front, upgrade! :biggrin: Literally slicks are a safety equipment upgrade! They perform even with bad lines, and keep you on the track.

Only upgrade if you have several seasons running r-compounds first.

Here is the video. http://64.158.28.140/MPEG/TwinVision/nasa_ra_fastlap_04-10-05.mpg


Here are more of his movies http://www.myrx7.com/movies/
 
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Russ said:
Slicks don't make anyone a faster driver, they make the car drive faster.

Eh, semantics. I think the general idea is communicated effectively.

RP-Motorsports said:
In this video he has some bad (early turn-in) lines, and isn't as smooth as he could be, and still busted a 2:31!

Saw that. But in context (driver not being a professional), I think that's a fairly decent lap! Maybe he thought he could turn in a little earlier with slicks and was trying it out? I'm sure he was stoked with the time acheived. I would be.

RP-Motorsports said:
Literally slicks are a safety equipment upgrade!

That thinly veiled attempt at justification...works every time.

FWIW, RA is one looooonnnng track!
 
Ponyboy said:
...........Saw that. But in context (driver not being a professional), I think that's a fairly decent lap! Maybe he thought he could turn in a little earlier with slicks and was trying it out? ...........!

I think it was actually the other way around. He was used to having the old tires give up adhesion and the earlier turn in may have accounted for this. The slicks hold your line better so you do not get as much push. Or he could just have been nervous/excited and clipped his corners:D

Now if only slicks were easy to come by for our car (fronts). Tom???
 
High boost RX-7 + a very good driver = fast lap times. I seem to recall the last time I saw Damian at MAM his car was making around 400whp. It's crazy how many events he runs.
 
NSXLuvr said:
cool video. Thanks. That is a long long track.

Yes, but a mans track. Run it up to 140 three times EACH lap, with 2 of those ending with a 90 degree turn, and little room for error.

Short tight tracks keep your adrenalin up by constantly turning and/or braking, where at Road America it is the FEAR that gets you between 120mph and 140mph. There is something magical about crossing that 120mph barrier. Things multiply big time when doing 130, 135, 140 when 5 feet from a bumper and 1 foot from a door and maybe even 2 wheels in the grass! :eek:

Anyone who made it to NSXPO at RA, will remember PD Cunningham talking about the kink (which he joked about going through flat out-yeah right) and then canada corner. He said there is an "arrow" sign, and then the traditional countdown numbered markers. He stressed BRAKE AT THE ARROW!:biggrin:
 
I think I was timing him on that lap on turn 5 because I had him at the exact time he had. Pretty sure he was in the mid to high 2.30's on R's and said slicks shaved around 5 seconds at RA. The biggest difference was seat time as I recall him saying...Damian chime in and let us know.

Check out Dan O's video back at NSXPO-01 at RA- fourth vid down. Looks like he's chasing Alex V. and wasn't his car FI back then? if it was pretty impressive driving by Dan O to hang with him. Man his NSX sounds sweet...



http://www.nsxprime.com/Gallery/multimedia/multimedia.htm
 
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hello all, its always cool to see one of my track vids used on the forums, that is what I make them for ... this is an interesting thread, but it looks like I need to clarify a lot of things here. Beware, this may be the longest post in history and my spelling really sucks huge.

first I'll comment on the original post, starting with the title:

>>Full slicks can make you a fast driver.

No, not really, .....Russ, you had the correct view on it ->
"Slicks don't make anyone a faster driver, they make the car drive faster."

so, really the title should be 'Full slicks can make your car faster', because that is all they do. Now, slicks behave differently than street tires so to fully utilize the slicks is entire conversation in itself. It took me many events to understand how to really use the grip of the slicks, and im still learning how to get it all out of the tire.

Also, on a side note, I really should be offended by the title as it implies that I am fast only because I run slicks. I mean, just look at the title again:

>>Full slicks can make you a fast driver.

and you reference me and my video as the driver....wow, without those darn slicks I must be horribly slow ;-) ...right?

(by the way I ran a 2:34 on my street tires when my slicks corded at one of the RA events last year....but that is another conversation too..hehehe)

ok back to the post:

>>Case in point. A friend of mine used to run a normal high end sportscar lap time @ Road America with r-compounds (2:40's) He then got a bit more seat time, and came across a set of factory Porsche Cup wheels/slicks (used qualifying or practice sets).

well, umm, ... close but not really, let me clarify some things.... my better lap times had less to do with tires and more to do with seat time, keep in mind I ran over 25 events in 2004 and over 20+ in 2005, this is not a 'bit' more seat time, this is more events than many track junkies will run in a 10 year period!!! So its really not accurate to tie my lap tiems to tires at all, the slicks only came into the picture at the end.

>>He immediately now runs a 2:31 lap time

WAY off here, as related to what i said above, i did not 'immediately' run 2:31 lap times.... it took me many events at RA over the last 2 years to get to my current lap times ...by the way i bested my 2:31 with a 2:30, and that is a good segway for me to talk about relative lap times and how the ramp up works.

You have to remember that its easly to make big monumental gains in lap times when you are new to the sport. Its not uncommon for a new driver to drop 5 or 10 seconds off an RA laptime in ONE DAY!!! But, for an experienced driver, that changes to 5 or 10 TENTHS of a second. The reason is, as you approach faster lap times for any given driver/car combination, the more effort is needed to go faster, and by effort i mean in the car and the driver.

So, for example, when I was green to this sport (I still am really), I was making big jumps at RA, so between my first event there and my seconds event there, it was like a 10 seconds jump in lap times. Then it went to 5 seconds gains between events, but seemed I had to drive harder...then only a few seconds gains between events, but I was goin relatively fast now, so a small gain was a big differential between what cars could or could not do similar times. Now I am at a point where it take a LOT more effort either in driving or in the car to get a SMALL gain in lap times. That is the ramp up that you have to understand when talking about this sport. when the lap times are far from the theoretical best lap time the car can do, the gains can be huge with little effort, when the lap time start to approach that theoretical fastest lap time, the gain are very small and the effort is huge.

I learned it the hard way, when i was new to the game i would say things like, 'ohh, i can drop 15 second, i know i can, easily'...well sure, i was so new to the game that small changes in driving got me 10 seconds, but then wow, that last 5 seconds seemed very hard to get. Now its about small gains, 0.5 seconds is a huge gain...and really I have moved to focus on consistency rather than fastest lap.

>>In this video he has some bad (early turn-in) lines, and isn't as smooth as he could be, and still busted a 2:31!

Ok, I really should be offended now!! :-) so far you have said im only fast cuz i run slicks and now my lines are bad....sheesh, at least my car looks cool (heheheh)

Now it is true that I wasn’t as smooth as I should have been, but when your pushing hard for a fast lap, it get more difficult to be smooth (heheh), the the ‘bad lines – early turn in’ comment is another one that is way off. I will explain why, but first I keep in mind that I will be speaking in generalities, as you can dissect every turn on every track and how to take it the fastest, some are early apex, some are late, some you double, et, et. So … in GENERAL, at RA, when you are starting out, you want to late apex, for good exit speed and probably a more important reason is that it is SAFER…in other words you have less of a chance to run out of track on turn exit when you turn in later. However, as you start to go faster and improve your braking and turn entry skills, you start to inch your turn in back farther and farther, but not so far that you hinder exit speed. That is the faster line, HOWEVER, is a harder and more dangerous line, think about it, a slight mistake on early turn in and you are off track on turn exit. Now obviously its relative to the individual turn, so again im speaking in general, but moving my turn in points back SLOWLY!!!..was one of the biggest contributors to my fastest lap times. And trust me, there is no way you get low 2:30s in my car without driving decent lines.


>>Literally slicks are a safety equipment upgrade! They perform even with bad lines, and keep you on the track.

OMG no!!!! do not sell them as a safety upgrade, they ARE the opposite. To an inexperienced driver they will give a false sense of car control. It took me a long time ,with great mentors, to get acclimated to using the tires and the very high corner speeds….if you are not ready for how they will behave, the ramification are big.

>> They perform even with bad lines, and keep you on the track.

Wow, again, I should be a mad man by now, as ur just reiterating that my lines are bad and im only stayin on track because of the slicks. ….. ahh no offense taken, I guess? LOL

On a side note though, the comment about ’ and keep you on the track’ is way off, because the goal is to use all the grip of the tire, slick or street, and when you are trying to do that, nothing ‘keeps you on the track’ but the driver. The possibility of going off track is the same, just takes higher speed to do it, but that is why u use a slick to go faster, so ur back where you started…

>> Saw that. But in context (driver not being a professional), I think that's a fairly decent lap!

Hey thanks PonyBoy…a compliment finally!!! Whoot!!! Honestly, I know there are a lot of things I need to work on, so I take all external criticism appropriately and try to put ego aside so that I can constantly improve my driving.

>> I seem to recall the last time I saw Damian at MAM his car was making around 400whp.

Hey Batoutahell, I wish I ran it at 400!! (heheh) Actually, its potential was in that range, tuned at 15 psi was supposed to make around 380 to 400, I never ran that, I have only run the car at wastegate boost, 11-12 psi, around 340 to 350 rwhp maybe? But I don’t mind having all the guys im whoopin on think that im running 400, its much more gratifying (heheheh)

>> It's crazy how many events he runs.

Yeah, its silly really, the sport got me by the ballzz….and it feels gooood!!!!!!

>> and said slicks shaved around 5 seconds at RA. The biggest difference was seat time as I recall him saying...Damian chime in and let us know.

Hey Steve, …yes and yes…keep in mind to that RA is SOOO friggin big that it will exaggerate any changes you make. For example, at the smaller track I have been on like MAM, and the 2 autobahn tracks in Joliet, the slicks only drop a few seconds since they are tighter/smaller tracks.

All this mumbo jumo I am spewing is just my personal perspective on it all, I am another student of the sport, that’s all. For me it has always been about the enjoyment the sport gives me and less about lap times……BUT ILL STILL SPANK UR ASSS AROUND THE TRACK!!!! ;-)

Well on to what is really important…the next track season!!!! WHOOOT!!!
I plan to run NASA Midwest season again and maybe mix it up with some w2w racing too, as well as try to make all the fun open lapping events I can....and rumor has it that I may run the One Lap of America this year… but its just a rumor.

See you guys at RA in spring!!!


Damián Dela Huerta - 1993 CYM Track Car
2005 NASA Midwest TTU Champion
 
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damian_rx7 said:
Hey Batoutahell, I wish I ran it at 400!! (heheh) Actually, its potential was in that range, tuned at 15 psi was supposed to make around 380 to 400, I never ran that, I have only run the car at wastegate boost, 11-12 psi, around 340 to 350 rwhp maybe? But I don’t mind having all the guys im whoopin on think that im running 400, its much more gratifying (heheheh)

Sorry Damian, I probably got 400whp from the rumor mill at the ITR Expo. You know us type r guys gossip like a knitting circle when a non-type r starts running laps around us at our own track event. ;) Can we talk you into instructing again at Expo 6?
 
Damian...... Damian........ I probably should have been a bit more specific, but trust me I give you all props, you are a fast driver! I was assuming that I was talking to advanced drivers only thus stating "you r-compound guys"

Thus nulling all of your statements about me selling slicks as a safety upgrade to newby's I assumed that all advanced drivers know that r-compounds and slicks need to be heated up, and will stick and then release with no warning if over pushed.

I did do some times on you when you did your first RA event, and you were only running 2:40's Then a few years later (seat time AND true slicks) and WOW crazy fast. I guess the reason that I titled it the way I did, is the turn-in's were not the greatest in the video, and if they were took with most r-compound tires, you would be in the grass at track out, thus slicks can make your "CAR" fast in which it should have been titled. Or give you a fast lap time in which it also could be titled. Trust me I will NOT be able to run those times with my NA car with oem brakes and "sticker" r-compounds. My goal is to run about 10 sec/lap off your pace.

Not too many street legal sports cars break the 2:30 barrier, so be proud man.

PS I can't believe you ran a 2:34 with street rubber!!!! A local guy with a Carrera GT runs that with street tires! Whooooa
 
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I can't say enough about how spot on Damian is with his post on lines. He fully understands that the key to a good lap is "turn in late as early as possible". It's subtle, but moving turn in points back slowly until you start running out of room at exit is the way to carry the most speed through the turn.

Now, the fun part is when you have to start dissecting individual turns and objectively (i.e., with segment times) determine whether moving the turn-in points back have moved the throttle pick-up too far down the track, and therefore, slowing the lap time. This is more true with higher-powered cars. A low-power car takes advantage of momentum and moving turn-in points back even a lot. But there comes a point with a higher-powered car where moving the turn-in point back kills the exit speed.

Then there's moving the turn-in point back without moving the apex, i.e., turning in sooner but slower (also can be felt as "smoother").

Nice job, Damian, it's obvious you have really been putting in some quality seat time and have a very good understanding of the subtleties. This is the challenge, and what keeps us coming back time and time again. There's SO much to know to approach the "perfect lap", not that anyone short of Schumacher, Senna, and Fangio has ever really executed one.
 
Re: What goes into quality seat time?

Damian, I’m glad to see you get this thread past the focus on slicks and equipment. And it looks like everyone is in agreement on the need/advantage of seat time. But around our paddock, the leaders give us newbie/midpackers shit about all the practice days we do but don’t seem to be catching up. Then, glancing at the guy who's been scaling his car every session for 6 years and is still 3 seconds off the pace, they go on about how practice is only so good if you know what to practice. All true, of course, so I’m always interested in how the fast guys got where they are.

Would you tell us a little of how you used your seat time. Did you do this all in your own car or did you go to Skippy/Russell or other professional school? Back at home and just practicing, did you have a coach? How did you coach yourself? What was your best source of information? Data? Video? Lead/follow?
 
Re: What goes into quality seat time?

Slicks are all very well and good but if i wanted to trailer around some slicks, wets etc. i'd get something more compromised than an NSX.
 
>>Nice car , I made some comments about your car a while back in the following thread.

Hey 2slow2speed, yup ur right this was fabian old car, he set it up VERY well..and i have just extended it further along the tracking path. :-)

>>BTW: Good long-ass post as well,

thanks!!! is a culmination of learning from the great people around me that I meet at these track events.

>>Can we talk you into instructing again at Expo 6?

Yep, I am already registered ;-) Wes asked me a few weeks back and I was honored that he asked.

>>Damian...... Damian........ I probably should have been a bit more specific, but trust me I give you all props, you are a fast driver!

;-) yeah, its all good, I know what ur were tryin to say.

>>Not too many street legal sports cars break the 2:30 barrier, so be proud man.

I am proud, on many levels....for exampel i do all the work on the car myself, so that is another big aspect of game that i enjoy and feel good about when the car runs well. :-)
If it dosnt run well I just blame it on someone else LOL hahahah

>>I guess the reason that I titled it the way I did, is the turn-in's were not the greatest in the video,

True, and I will be the first to admit I need to clean a lot up, BUT,....keep this in mind.... its EASY to turn in smoothly when ur goin slow :-)

My next progression is obviosuly to get confident enough at that crazy turn entry speed that im not jittery and smooth it out...but again, I am going fast for teh car itself now, so we are talking very small gains for a LOT of effort....in other words its gonna take me a loooong time LOL hahaha

>>Trust me I will NOT be able to run those times with my NA car with oem brakes and "sticker" r-compounds.

If you did you would not be talking here, you would be driving in the rolex 24 hours I was watching earlier :-) actualy, you really cant compare like that, the cars are WAY to different and our experience is too. Remeber the big leap in lap times between RA events, keep in mind that most people had no events in between those, I have like 10!!! All that aggregate driving is what made the RA lap times jump so much...if you were to look across all the events in between, the laps times just crept up like normal.

>>My goal is to run about 10 sec/lap off your pace.

cool... i still think its too hard to compare cars like that, ..its like who knows if 10 seconds off my rx7s pace is good for your car. I try not to make goals off others times, its just to may relative factors to be tangable, instead i say, ok , I need to clean this up or that, and I want to go faster and safer (kee on teh safer)....as you get better/faster, you should actually be driving safer than before as well as faster.

>>PS I can't believe you ran a 2:34 with street rubber!!!!

well, they were r-compound street tires ;-) so its not all that impressive.

>>I can't say enough about how spot on Damian is with his post on lines. He fully understands that the key to a good lap is "turn in late as early as possible".

Thanks dquarasr2!!!

>>It's subtle, but moving turn in points back slowly until you start running out of room at exit is the way to carry the most speed through the turn.

that is exaclty it...and im at that point in my driving now where i am pushing that part of my entry...and still learnign where it should be and where for what turn on what track...its too much for my feeble brain to handle lol

>>Nice job, Damian, it's obvious you have really been putting in some quality seat time and have a very good understanding of the subtleties.

I owe most of it to the mentors I have had along the way... some really fast guys that would let me tag along with them to track events.

>>they go on about how practice is only so good if you know what to practice. All true, of course, so I’m always interested in how the fast guys got where they are.

ahh yes, very insightful question....i have so much to say on that topic that i cant really put it all here...but to chop it into snippet, id say that the biggest factor was the people I surrounded myself with. Having like 4 or 5 mentors got me fast in a hurry (relativly speaking), and by fast I dont mean as in taking my car to the limit, I mean showing me the tracks and how to be fast as specific tracks.


>>Would you tell us a little of how you used your seat time.

Well, I was probably bad about focusing on my skills at every event, I like to have fun while driving so I will fool around alot, One thing I will say is that I did make a point to take at LEAST one session of every event and focus on one aspect of my driving...looking ahead, braking, turn in, exit speed, et, et...and focus only on that skill for that session....otherwise I would never work on anything and just drive around like a mad man!!! LOL


>>Did you do this all in your own car or did you go to Skippy/Russell or other professional school?

I never have not done a formal driving school, but i should. :-) however, I was 'in school' at every event with the guys I had around me, just watching them helped me get faster.

There are things I would do different if I knew then what I know now...I would have done a school earlier on so I did not pick up bad driving habbits early and have to fight them later. also, I think its better to start with a lesser car and learn momentum driving and car control, before stepping into a sports car or track prepped car. Early on I know my rx7 (not track one, i dint have that yet, my 95 street rx7) masked a lot of bad driving cuz the car was so good....it took me a long time to beat those bad habbits out, if I started on a miata then the car would not have masked much LOL
 
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