I need a new clutch for my EK running in STS. I was under the impression that the clutch / flywheel combo had to be an OEM replacement; but while looking at the rulebook, I didn't see anything specific about it. There was a line that said engine / tranny should not be modified, so does that include the clutch? I'm thinking that I'll be going with the Exedy Organic and OEM flywheel.

 

Yup Stock clutch and flywheel!!!

 

I axed da same ting:

https://honda-tech.com/zerothread?id=1028151

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Agent Smith &raquo;</TD></TR><TR><TD CLASS="quote">I axed da same ting:

https://honda-tech.com/zerothread?id=1028151
</TD></TR></TABLE>

I thought I remembered a thread about this, but the search has been down... my bad

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Agent Smith &raquo;</TD></TR><TR><TD CLASS="quote">"provided they are the same type and size as the standard parts"

Well that's maybe not as specific as you might want, but that's what I was looking for. The exact brand doesn't really matter as I haven't actually purchased anything yet. As long as the parts are sold as being equivalent, I'll be happy enough.</TD></TR></TABLE>

So Exedy Organic and OEM flywheel it is. Thanks everyone

 

Ok, so then why are you going with the Exedy over the oem clutch? Does the Exedy grab better? If it does, I question how much of an oem replacement it is. Heck, a lot of clutchs are oem replacement if you want to justify it hard enough, but they certainly aren't oem in performance.

This is why the clutch rule should be open in ST in my opinion. Like a clutch really makes a difference in SoloII. A flywheel, yes. A clutch--not really. Maybe at the ProSolos I could see it being an issue.

 

I thought both Exedy and Honda OEM clutches were made by Daikin (sp).

I've always thought for STS your clutch will need to be the same material as OEM.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Todd00 &raquo;</TD></TR><TR><TD CLASS="quote">Ok, so then why are you going with the Exedy over the oem clutch? Does the Exedy grab better? </TD></TR></TABLE>

The longevity and durability. I realise the OEM unit is pretty durable and can last the life of the car, but I glazed mine at a school on a hot day doing repeated launches; and I'd like to prevent that from happening again.

From the research I've done, the organic is better at high temps and repeated launches. It has a higher tourqe capacity, but the same clamping force and weighs the same; so I don't think that's out of the realm of OEM replacement, but feel free to correct my logic.

 

From the other thread:
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">12.4 Standard Part
An item of standard or optional equipment that could have been ordered with the car, installed on the factory production line, and delivered through a dealer in the United States. Dealer-installed options or deletions, except as required by factory directives, no matter how common or what their origin, are not included in this definition. This definition does not allow the updating or backdating of parts.

13.10.L
Limited-slip differential, transmission and differential ratios, clutch mechanisms, and carburetion, fuel injection or supercharger induction systems must be standard as herein defined.</TD></TR></TABLE>

I still maintain that the Exedy Organic is not OEM. It's advertised as performing better than OEM, it isn't the same part numer, etc. Not legal.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Crack Monkey &raquo;</TD></TR><TR><TD CLASS="quote"> It's advertised as performing better than OEM</TD></TR></TABLE>

So does the "tornado" intake whirlygig.....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Crack Monkey &raquo;</TD></TR><TR><TD CLASS="quote">
I still maintain that the Exedy Organic is not OEM. </TD></TR></TABLE>

I can see your point. The only reason I considered the Exedy, was that I thought it was advertised as an OE replacement at one time (I could be wrong). The only difference in the specs was the torque capacity, which isn't going to be of any benifit to performance with a stock motor.

I just didn't want to spend all this time and money on an OEM clutch to just have it glaze agian. Oh well, I guess I'll just have to be careful under high heat loading.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EX_AutoXer &raquo;</TD></TR><TR><TD CLASS="quote">I can see your point. The only reason I considered the Exedy, was that I thought it was advertised as an OE replacement at one time (I could be wrong). The only difference in the specs was the torque capacity, which isn't going to be of any benifit to performance with a stock motor.

I just didn't want to spend all this time and money on an OEM clutch to just have it glaze agian. Oh well, I guess I'll just have to be careful under high heat loading.</TD></TR></TABLE>

There is an Exedy OE Clutch.

http://www.clutchcityonline.com/honda_civic.htm

Organic is an upgraded clutch and more expensive(illegal for STS).

http://www.clutchcityonline.co...c.htm


Modified by M12 at 12:25 PM 2/18/2005

 

I have the OE replacement Exedy clutch. It is not organic. It is the same Daikin clutch that a dealership would most likely use if you took your car in.

 

The exedy organic is clearly illegal for STS.

If you got enough people to write in to change the rule it might pass. Aren't you allowed both flywheel and clutch in SP? It seems like most of the mods they want to allow will allow a transition into the SP classes.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by M12 &raquo;</TD></TR><TR><TD CLASS="quote">

There is an Exedy OE Clutch.

http://www.clutchcityonline.com/honda_civic.htm

Organic is an upgraded clutch and more expensive(illegal for STS).

http://www.clutchcityonline.co...c.htm

Modified by M12 at 12:25 PM 2/18/2005</TD></TR></TABLE>


Thanks, good info. I searched around for the OE, and couldn't find a listing for it at any of the suppliers I normally go through. I thought that the Organic was the old OE style because of the similar specs.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EX_AutoXer &raquo;</TD></TR><TR><TD CLASS="quote">


Thanks, good info. I searched around for the OE, and couldn't find a listing for it at any of the suppliers I normally go through. I thought that the Organic was the old OE style because of the similar specs.

</TD></TR></TABLE>
Your local Honda Dealer can get you an OE clutch.. Or check out this site

http://www.hondaautomotivepart...y.jsp

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vbspec &raquo;</TD></TR><TR><TD CLASS="quote">
Your local Honda Dealer can get you an OE clutch.. Or check out this site

http://www.hondaautomotivepart...y.jsp</TD></TR></TABLE>

I called the local dealer, and they were selling them for more than aftermarket. I ended up ordering from http://www.slhondaparts.com. I've had better luck with them, and they always give shipping charges on checkout.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ryan12321 &raquo;</TD></TR><TR><TD CLASS="quote">
If you got enough people to write in to change the rule it might pass. Aren't you allowed both flywheel and clutch in SP? It seems like most of the mods they want to allow will allow a transition into the SP classes.</TD></TR></TABLE>

The SP rule started the same way you guys are suggesting for ST. But its interpretation evolved over time to where the current fast guys are running twin or triple disc, 5.5" kevlar or carbon/carbon clutches on aluminum flywheels that weigh 4 lbs. Not a very streetable type of thing, at least not if you want any mileage out of it. But a huge performance increase. And prices that go from $1000-$4000.

Now, you could limit the flywheel to stock and clutches to a single plate like they do in Spec Miata, but you'll still have folks custom making clutches.

Pretty much the only way to keep costs in line is to limit to stock diameter, number of plates and weight (no lighter than OE). That might be doable. TThat would allow increase in clamping force but no reduction in rotional inertia. Anything else will add one more expensive item to the "must have" list for performance.

--Andy

 

Yeah I guess you have a point with the ability to make the small clutches work.

maybe OEM design but more clamping force? My stock clutch started to slip slightly under some conditions. I put a brand new oem clutch/pressure plate in as soon as I bought the car in late 03. If you make the rule like that the gain probably won't be that great so it won't be a "must-have" mod.

I actually think this would help the heavier cars though and even competition out more. I just put a clutchmaster stage 3 and lightened flywheel in my 00 civic with the B16. It helps so much when you don't have a clutch that slips with more power. On the d16 civics a clutch won't help that much because it doesnt have much power to handle to begin with.

 

I completely agree. I think the clutch should have to be equal or greater weight and design as stock. I sure know a little extra clamping force would be nice on my car.
I don't think the STS civics have a huge problem, but I think some of the torquier cars could really a bigger clutch. Maybe its just my integra, but I think aftermarket clutches should be allowed.

 

You guys all have good points. The whole reason for STS is to have a streetable car with some minor mods and still be able to compete. Even though I'm far from competitive in my car, I'm pretty happy with the fact I'm not going to have to spend SM or SP kind of money down the road.

The only reason I considered another type of clutch wasn't for increased performance, or any type of advantage (although, in our sport some may do just that). I just wanted to replace my clutch with one that may not have to be replaced every season due to 'glazing' because I'll to be doing 3-4 schools every season to improve the nut behind the wheel.

When I look at it on the perspective of writing in to change the rules, and having custom clutches etc., I'm more than happy to stick with OEM and change it every, or every other, season, because being competitive in STS is already beyond my budget; especially when Nate is in your region

 

so how much of a big deal is it to get a rule changed? I think it would be good to allow aftermarket clutches of same size and greater or equal weight, simply because you could get a more durable clutch. Sure, someone out there might blow a bunch of money on something custom, but for the most part this would probably save people money by being able to get a new clutch that would last longer than the stock under competition loads. just a thought though...