theReverend-

CaptMike has a legit point in posting that. He is saying that the delay is there regardless of whether you "notice" it taking over or not. He is just giving fair warning to those who are dumping clutches at high RPM's of the potential dangers to the clutch disc, and that Honda will not do ANYTHING under warranty. I do not think he is saying that you must disengage the delay, but just stating that it is there, and if you want to launch at that high RPM with no potential clutch problems, the delay will need to be deactivated. By doing this, though, you up the chance of something else happening to the rest of the drive train....and if HONDA finds out that you deactivated their safety device, they will most likely not warrant the damage that was a result of the deactivation.

The extra clutch slip is most likely there on your car, you are just not noticing it. It was installed on all (I think) 04+ cars as a s sort of "nanny" device, and if your car is 04+, it is most likely there and performing its function.

John

 

Thanks John, you said it much better than I did. If you are clutch dumping an 04-05, the delay IS slipping your clutch, whether you notice it or not. And removing the delay and dumping the clutch is no more 'Dangerous' than doing so in any pre-04 S2000, in fact it is probably less so as there was a redesign/strengthening of the tranny and diff for the 04.
As I said before there are numerous threads on this subject if anyone is interested in finding out more for themselves. Read up and make your own judgement. I'm sure the vast majority of owners is fully capable of making this judgement for themselves. If you have an 04-05 I recommend driving a pre-04 if that is an option for you to feel the difference before doing the delay removal. Or if you are mechanically inclined just do it and if you don't like it change it back. It's a 30 minute job if you're mechanically inclined and have a friend with at least 1 leg.

To reiterate a point if you don't notice the effects of this delay then I wouldn't worry about it, it is only noticable when operating near the limits of the car and will never be an issue for many owners.

 

yep, john you summed up the pros and cons nicely.

 

while i dont know about the tranny improvements (other than CF synchros), there is no proof that the new 04+ diff is any stronger.

 

wow. this thread is going a lot longer than I thought it would. heh

 

wow. this thread is going a lot longer than I thought it would. heh

 

, if the differential WAS indeed strengthened, why was the nanny device installed? I do not think any "real" work was done. I think the AP2 is less prone to tranny shock, because it has more torque down low, so the tires break easier. And as far as Capt. Mike said about the delay.....if you do not "notice" it does not mean that you should continue to dump at high RPM. If you continue to do so, and do not "notice" the delay, the damage is still taking place in the form of glazing your clutch. It is just whether or not you notice it. If you do not notice it now, you will later down the road with either that wretched smell or a slipping disc.

i do not think Honda put any significant effort into the differential reinforcement for the AP2. if such work had been done, the delay would not be there.

John

ps- in short....if you want to do 8k launches on a regular basis without screwing the clutch disc, take the delay off. By doing this you will be straining the differential. In order to get "worry free" high RPM launches, disable to delay and buy the COMPTECH reinforced diff.

 

the comptech addresses the major issue and likely most common point of failure on the S2000 diff (ap1 and ap2). that is bearing cap flex.

 

I hope this isn't jacking the thread, but I am finding autocross launches in my '05 to be painfully slow with LOTs of clutch slippage. I was thinking about doing the delay valve mod but was told it would take my car out of the Stock class. I'd like to be able to stay stock autoX, but don't know if I want to burn up my clutch to do it. I doubt there is a decent launch technique with the valve in. Tony

 

Just don't tell them. It's not visible or anything