S2000 Under The Hood S2000 Technical and Mechanical discussions.

Please HELP!

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Old Jul 24, 2005 | 10:57 AM
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First off, please bear with me as I'm trying to explain the situation. Something wrong with the search, it doesnt return anything.

Okay, I started in first gear and everything seems normal. I rev all the way to 9k on 1st gear and switch to 2nd gear. Now, as soon as I'm in second gear the RPM goes up to 7k-8k like I was in nuetral but I do gain a little acceleration. (Basically, it doesn't hook like it suppose to I guess) Then the RPM falls back down to where it suppose to be I guess which is around 5k-6k.

2nd attempt - I drive normal and switch to 2nd gear then I floor it and and same thing. The RPM goes up to 7k-8k but I know for sure that the power is not there. It feels very slow. When it hit 6k I hear the vtec but dont feel the power.

I'm thinking it got be the transmission or the clutch but i'm not expert and know very little about cars. Please Help!!
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Old Jul 24, 2005 | 11:27 AM
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CLUTCH! ................... Either the clutch disc is slipping or the clutch hydraulics is not in good shape.
Where is the friction point of your clutch?
Also, are you taking your foot completely off the clutch pedal after the shift? And are you getting OFF the gas during the shift or are you keeping the gas planted? How slowly are you letting the clutch up during one of these redline shifts?
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Old Jul 24, 2005 | 11:53 AM
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[QUOTE=xviper,Jul 24 2005, 11:27 AM] CLUTCH! ................... Either the clutch disc is slipping or the clutch hydraulics is not in good shape.
Where is the friction point of your clutch?
Also, are you taking your foot completely off the clutch pedal after the shift?
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Old Jul 24, 2005 | 02:29 PM
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I don't know what or where the friction point is. How would I know? Wouldn't it be the same for every S2000?
As you lift up on the clutch pedal, you will reach a point where the engine just begins to transmit power to the rear wheels. You will notice this most as you take off from a dead stop and slowly release the clutch till it "grabs" and begins to move the car. This is the friction point and NO, it may not be the same with all cars. When the clutch hydraulics are going bad or when the clutch is going bad, the friction point moves further and further UP the pedal travel.

No I don't take my foot completely off the clutch after shifts. I just step on the clutch put it in the gear and as I slowly release the clutch and steadily press the gas. Is this good or bad? How do you guys switch gears?
You may be releasing the clutch too slow and giving it too much gas too fast. The rate at which you do both is completely dependent upon how you are driving at the time. If you are in "race" mode, as you all it, this is very quick. Even in "normal" mode, it should never be "slow" unless you are taking off from a dead stop.

When I'm "racing" I step on the clutch very quick switch gears and let the clutch off very quick.
You most likely have poor timing in terms of what you do with the gas. If you give it too much gas before the friction point, or if you release the clutch too slowly, the engine side of the clutch will speed up far more than the tranny side can "catch up". You then have clutch slip.

You most likely glazed the clutch severely with your antics. Drive it sedately and rev match carefully both up and down for a few days and see how it goes. If it doesn't recover, you need a clutch job.
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Old Jul 24, 2005 | 04:12 PM
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Make it a habit of letting off the clutch all the way. Even light pressure will activate the TO bearing and cause it to wear out before the clutch (well, maybe not in your case )
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Old Jul 24, 2005 | 08:29 PM
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Thanks alot,

I took it out for a test drive around town for a few hours and here is what i noticed.
I'm sure x-viper is right on the dot about it being the clutch. Even on 1st gear I rev up to 5k and when you try to floor it, the RPM just goes up but the car does not gain any more power. I tried it on all gears and same result. I was driving down the highway and my car will not go pass 57mph. It would just rev when I try to go pass 57mph.

Since I know it is the clutch I think this is a great time to install an aftermarket clutch. I was looking at the Clutch Master Stage 3 kit that runs around $800 on ebay. I'm very ignorant when it comes to cars and car parts. Do i need to go with Stage 1 then to Stage 2 and then to stage 3? Or can I just install stage 3?

Does anyone have any advice on clutches and which ones I should get?

Final questions for today... How much would it normally cost to change a clutch?

My Car Spec:
Exhaust & Intake so no turbo or anything.

Thanks in advance,
Joe
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Old Jul 24, 2005 | 08:58 PM
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Originally Posted by silverstones2k1,Jul 24 2005, 09:29 PM
I was looking at the Clutch Master Stage 3 kit that runs around $800 on ebay. I'm very ignorant when it comes to cars and car parts. Do i need to go with Stage 1 then to Stage 2 and then to stage 3? Or can I just install stage 3?

Does anyone have any advice on clutches and which ones I should get?

Final questions for today... How much would it normally cost to change a clutch?
Those who have the CM clutches are not numerous. You may find that it is too aggressive (grabby). Many owners here have reported going with the ACT clutch disc and ACT pressure plate (which is more heavy duty). These are reworked OEM parts and has proven to be very good for most applications, including those with superchargers and turbos.
A board sponsor "Hardtopguy.com" sells these parts at a very good price. Consider getting the disc and pressure plate, throw out bearing. Since there is a good possibility that your flywheel is also "roasted" (heat checked), you should also consider getting a new flywheel with pilot bearing. You might even go a few bucks more and get the Comptech lightweight flywheel. Hardtopguy sells those, too.
It takes a shop 8 to 10 hours labour to do a clutch on this car, so find out what the hourly rate is at your favourite shop. Oh, you should also change the clutch fluid while you're at it. In fact, maybe do this first. You never know, it might be a miracle cure.
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Old Jul 24, 2005 | 09:02 PM
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If the car is staying stock, there is nothing wrong using the stock parts, they hold up pretty damn well.

The stage 3 CM unit is a little aggressive for everyday use, but not horrible. The stage 4 is a on/off switch.

The ACT works very well, and just about everyone using it loves it.
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Old Jul 24, 2005 | 09:06 PM
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Originally Posted by xviper,Jul 24 2005, 08:58 PM
Those who have the CM clutches are not numerous. You may find that it is too aggressive (grabby). Many owners here have reported going with the ACT clutch disc and ACT pressure plate (which is more heavy duty). These are reworked OEM parts and has proven to be very good for most applications, including those with superchargers and turbos.
A board sponsor "Hardtopguy.com" sells these parts at a very good price. Consider getting the disc and pressure plate, throw out bearing. Since there is a good possibility that your flywheel is also "roasted" (heat checked), you should also consider getting a new flywheel with pilot bearing. You might even go a few bucks more and get the Comptech lightweight flywheel. Hardtopguy sells those, too.
It takes a shop 8 to 10 hours labour to do a clutch on this car, so find out what the hourly rate is at your favourite shop. Oh, you should also change the clutch fluid while you're at it. In fact, maybe do this first. You never know, it might be a miracle cure.
Hey xviper,

Do you have AIM or something so I can talk to you? I'm just patiently waiting for you to respond so I can clear things up and order what I have to order tomorrow.

So what do I need to purchase? Just the disc, pressure plate, throw out bearing and an oem flywheel with pilot bearing?

thanks again,
joe
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Old Jul 24, 2005 | 09:08 PM
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Originally Posted by Slows2k,Jul 24 2005, 09:02 PM
If the car is staying stock, there is nothing wrong using the stock parts, they hold up pretty damn well.

The stage 3 CM unit is a little aggressive for everyday use, but not horrible. The stage 4 is a on/off switch.

The ACT works very well, and just about everyone using it loves it.
Okay I'll get the ACT clutch from Hardtopguy since my car is daily driven and I am looking forward to SC or turbo charge probably next year. Any other tips?

thanks
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