Problems with clutch after upgrade
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Problems with clutch after upgrade
Well.. My clutch is in great condition, my car was mainly highway miles, driving from NC to CA most of its life. I upgraded to just a few little mods in signature and now at around 80 MPH in 5th under boost my clutch is slipping. I was running bout 12 to 12.5 PSI when it slips. I set the boost to 10 or 11 and now its fine under full boost. How much HP can the stock clutch handle? Ricks estimated that I am running 300 to the wheels at 12 PSI.
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Joined: Mar 2001
Posts: 99
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From: DFW, TX
It's toast.
Your stock clutch will not be able to handle that power.
Several years back when I first purchased my 93, I put a new OEM unit in there. A couple of months later, I added an intake, catback, down pipe and ECU. The clutch immediately started slipping under boost(12psi).
I eventually had to upgrade to the ACT unit and have added more mod's since then and have had no problems.
It will last a long time if you nurse it....but who wants to nurse it?
Good luck
GEB!
Several years back when I first purchased my 93, I put a new OEM unit in there. A couple of months later, I added an intake, catback, down pipe and ECU. The clutch immediately started slipping under boost(12psi).
I eventually had to upgrade to the ACT unit and have added more mod's since then and have had no problems.
It will last a long time if you nurse it....but who wants to nurse it?
Good luck
GEB!
Re: Problems with clutch after upgrade
Originally posted by OneKrazyGuy
Well.. My clutch is in great condition, my car was mainly highway miles, driving from NC to CA most of its life. I upgraded to just a few little mods in signature and now at around 80 MPH in 5th under boost my clutch is slipping. I was running bout 12 to 12.5 PSI when it slips. I set the boost to 10 or 11 and now its fine under full boost. How much HP can the stock clutch handle? Ricks estimated that I am running 300 to the wheels at 12 PSI.
Well.. My clutch is in great condition, my car was mainly highway miles, driving from NC to CA most of its life. I upgraded to just a few little mods in signature and now at around 80 MPH in 5th under boost my clutch is slipping. I was running bout 12 to 12.5 PSI when it slips. I set the boost to 10 or 11 and now its fine under full boost. How much HP can the stock clutch handle? Ricks estimated that I am running 300 to the wheels at 12 PSI.
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Re: Re: Problems with clutch after upgrade
Originally posted by Mahjik
That's strange... I have a similar setup as yours and don't experience that at all. So I don't think it's that the stock clutch can't take the power.
That's strange... I have a similar setup as yours and don't experience that at all. So I don't think it's that the stock clutch can't take the power.
BTW...
I left out a small detail,not sure if its relevant, I have 143,000 on my OEM clutch.
Re: Re: Re: Problems with clutch after upgrade
Originally posted by OneKrazyGuy
Did you ever Dyno or run the 1/4? we should have similar #'s, mine was never dynoed.
BTW...
I left out a small detail,not sure if its relevant, I have 143,000 on my OEM clutch.
Did you ever Dyno or run the 1/4? we should have similar #'s, mine was never dynoed.
BTW...
I left out a small detail,not sure if its relevant, I have 143,000 on my OEM clutch.
Also, my car has 73k miles on it, so that's probably the difference.
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Joined: Mar 2001
Posts: 99
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From: DFW, TX
I think the high mileage on your clutch has something to do with it....
BTW, the OEM clutch disk itself, can handle a good amount of power. It's the OEM pressure plate that will not hold up and will eventually begin to slip under high boost. With anything over 280 RWHP, it's only a matter of time before you start seeing the OEM pressure plate begin to slip.
BTW, the OEM clutch disk itself, can handle a good amount of power. It's the OEM pressure plate that will not hold up and will eventually begin to slip under high boost. With anything over 280 RWHP, it's only a matter of time before you start seeing the OEM pressure plate begin to slip.
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Originally posted by alwan16
it sounds like your clutch. i'm running 280rwhp on a relatively new stock clutch and it handles the power fine. 143k miles on an rx-7 is a helluva lot.
it sounds like your clutch. i'm running 280rwhp on a relatively new stock clutch and it handles the power fine. 143k miles on an rx-7 is a helluva lot.
My engine is new BTW, the clutch is original.
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