[JonV8944s]

So while I own a nis006, I have never bothered to do the clutch relearn activities, and setting the capacities.

The issue I have that I would like to resolve is that when I use the 3300 LC2 on the car, it loses traction and gets a bit of wheel hop (which I then stop immediately).

All other times the car is great. Daily street driving, its awesome. Sure if you floor it, you get a drift, but it produces no wheel hop and if in R mode it won't hamper your fun unless you don't modulate the throttle a bit.

So my question is this, for continued smoothness on the street, but effective launch control at the strip, what should I be setting my touch points, clutch capacities, etc.. to ?

Thanks for the help!

Jon

 

[sjj31]

I typically use 0 0 2 2 at the strip and 0 0 0 0 or 0 0 1 1 at the road course, set to 0 0 0 0 do at clutch relearn the play with, you can adjust on the fly all day long. Temp needs to be 165 or above for clutch relearn. Some guys recommend 2 2 2 2 at strip but I have found too grabby however each clutch is unique...

 

[sjj31]

Ps to aid in task buy a cheap iPhone 4 camera mount on amazon, clip your cobb in with a little electrical tape and run the cobb wire around the dash by the steering column. Mount on the windshield and drive around like that so the adjustments are at your fingertips. Works great for datalogging also ... And much safer As it is in your line of sight

 

[sleepdoc]

You will have to try out a few different settings. The same settings might not work well for both the street and strip.

I would suggest trying 2 things to avoid that wheel hop.

1. Lower the CC's in the Odd Gear.
That might give you less harsh of a clamping, therefore less hop, but it also might raise the RPM at launch, giving you more hop. Clutch slip could also become a factor if you lower it too much.

2. Raise your TP's in the Odd gear.
That might increase the creep enough to give you a less abrupt engagement. This also may decrease your launch RPM or increase clutch slip.

You have to test things out.

That being said, I really, really do not like the NIS 006 LC versions on stock run flats. Seriously. It is very prone to wheel hop. I won't use it when/if I install the AP on my new (2010) car. I tried it one session at the strip on my old (black) car on run flats, and it was ugly. Never again. Wait for LC4, or use DR's, then it's fine.

The "Double Stomp" of the accelerator pedal, IF done right, is less harsh. The "Double Stomp" of the brake is the most dangerous.

Hope that helps.

 

[CornedOutVR38]

When you say lowering the CC's raises the RPM at launch, are you referring to the RPM you see while on the brake/gas or the RPM that it drops to just after launching the car?

 

[sleepdoc]

When you say lowering the CC's raises the RPM at launch, are you referring to the RPM you see while on the brake/gas or the RPM that it drops to just after launching the car?

RPM while on the brake/gas.

How is the LC4 going? Getting your best times with LC4 or the 006 4k+ launch? I hear you are close to the goal..

 

[SCCAForums]

Sleepdoc... your examples of what to do in CC & TP are great... what about what to do for 'even gears'?

Dave

 

[JonV8944s]

Gentlemen, much appreciated. I'll try those suggestions out, maybe even today if I get time. I'd be curious to see what its currently set at.

I'll report back later today, if/when I get a chance to go for a drive.

Thanks!

Jon

 

[CornedOutVR38]

I haven't been back to the track since running the 6.53 @ 111 in the 1/8 about a month ago. LC4 seems a tiny bit quicker but far more consistent. What I wanted to do was play with different combinations of CCs and TPs at the strip but you can't easily adjust those parameters with LC4 yet. The other challenge we have up here is the 11.5 NHRA rule. We only get one shot at going 9's so if that's not the best run of the day, we're at a disadvantage since we get the boot right after it.

If you don't mind divulging the information, what were your odd/even TPs and CCs set to on your 10.003 pass? And when you launched on LC2 at say ~4500 RPMs, would the RPMs drop at all? On LC4 mine holds 4500 RPMs but as soon as the car moves it drops down to ~3700 RPMs...

RPM while on the brake/gas.

How is the LC4 going? Getting your best times with LC4 or the 006 4k+ launch? I hear you are close to the goal..

 

[sleepdoc]

I haven't been back to the track since running the 6.53 @ 111 in the 1/8 about a month ago. LC4 seems a tiny bit quicker but far more consistent. What I wanted to do was play with different combinations of CCs and TPs at the strip but you can't easily adjust those parameters with LC4 yet. The other challenge we have up here is the 11.5 NHRA rule. We only get one shot at going 9's so if that's not the best run of the day, we're at a disadvantage since we get the boot right after it.

If you don't mind divulging the information, what were your odd/even TPs and CCs set to on your 10.003 pass? And when you launched on LC2 at say ~4500 RPMs, would the RPMs drop at all? On LC4 mine holds 4500 RPMs but as soon as the car moves it drops down to ~3700 RPMs...

I don't remember what they were on my best pass... I would change it around every time out there. The RPM's did drop on engagement, but I never really watched it too closely.

There is a fine line in getting it just right, without a doubt frustrating. Many times I would hit a 1.45 60', the clutch would then slip hitting 3rd, had it held I would have hit 9's. Then, I would hit a high 1.4 60, it holds, but 10.0 is the result. Frustrating, but it will be done without a doubt. The 2012 turbo pipes will get you or Bill there eventually. I could have dropped weight in the car a bit more too and that would have done it, or lost a little weight myself. At the time I was 180 - 190 lbs, not sure how much you weigh. My guess for Bill is about 160, could be wrong though. Every tiny thing matters when U are talking thousandths of a second....

 

[SCCAForums]

Is negative 'more' or positive more? ie does -1 produce more grip than +1?
Thanks,
Dave

 

[sleepdoc]

Is negative 'more' or positive more? ie does -1 produce more grip than +1?
Thanks,
Dave

Think of it like this, the more positive on CC's is like increasing the clamping force of the clutch. TP is a little harder for me to put into words, but it's like on a manual car, the more negative, the closer to the floor the clutch pedal is depressed. The more positive you go, the more you are letting the clutch up and toward engagement, and starting to engage, creep, and move forward.

At least that's how I understand it. Hope that helps.

 

[[email protected]]

I don't remember what they were on my best pass... I would change it around every time out there. The RPM's did drop on engagement, but I never really watched it too closely.

There is a fine line in getting it just right, without a doubt frustrating. Many times I would hit a 1.45 60', the clutch would then slip hitting 3rd, had it held I would have hit 9's. Then, I would hit a high 1.4 60, it holds, but 10.0 is the result. Frustrating, but it will be done without a doubt. The 2012 turbo pipes will get you or Bill there eventually. I could have dropped weight in the car a bit more too and that would have done it, or lost a little weight myself. At the time I was 180 - 190 lbs, not sure how much you weigh. My guess for Bill is about 160, could be wrong though. Every tiny thing matters when U are talking thousandths of a second....

My best 60ft was 1.49 with LC4 set 0-0-0-0, but it sucks not to change the settings on the fly like LC2. I did get a 1.47 60ft with lc2 based files. I think that was 1-1-2-1, but I changed that a lot depending on track and car conditions.

BTw I am 6'2" 205lb. I may stick my pro driver in the car he is 151lb, and a better driver than me. Though I did get a .000 reaction time on a no launch launch yesterday at a big money event. then 1st round I got a little too antsy and .004 red light.

 

[sleepdoc]

BTw I am 6'2" 205lb..

Wow, don't know why I was so off on that one .... I must have been post call or something ..

A 150 lb driver would do it for sure then, wouldn't be as meaningful tho ..

 

[Church]

If you don't mind divulging the information, what were your odd/even TPs and CCs set to on your 10.003 pass? ..

Geeez dude. Your asking the current holder what his secrets are so you can beat his record? Go out there an learn it on your own. Be a man and try to break the record with your own skills.

 

[CornedOutVR38]

LOL, it's a little hard when it's not a level playing field. We can't test and tune up here like you guys can down in FL. Otherwise, trust me, I'd be there every weekend trying out different combinations! It sucks!

I wouldn't exactly call someone's TP/CC settings "secrets" either. This is a forum where members share information pertaining to mods in the interest of further advancing the platform and making our cars faster.

Geeez dude. Your asking the current holder what his secrets are so you can beat his record? Go out there an learn it on your own. Be a man and try to break the record with your own skills.

 

[venkatreddytx]

Went to the drag strip for the very first time yesterday, using LC4 on a 2011 so launch rpm is 3300.

My Friend has a 2010 and he used the Cobb LC4(around 2000 rpm launch) on his and ran a 10.861, why don't you give the Cobb LC4 a try?

TP/CC are 0000 and cannot adjust with Cobb due to LC4 VDC off launch flash installed.

Tires 20" OEM Bridgestone RE070R Run Flats.

First Run 60' 1.820 1/4 10.937 @ 129.63, can't believe ran 10's on my very first run.

Time-slip attached.

 

[tetsu]

Hey Venkat,wish you stay longer so I can run again you hahaha!did run 10.7 after you left,but lost big time at last run because LC4 Sometime work sometime not work!fun time!