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-   4.6L V8 Technical Discussions (https://mustangforums.com/forum/4-6l-v8-technical-discussions-69/)
-   -   stock clutch/flywheel max hp/torque limitation? (https://mustangforums.com/forum/4-6l-v8-technical-discussions/561066-stock-clutch-flywheel-max-hp-torque-limitation.html)

NJShelby120 09-07-2009 01:18 PM
stock clutch/flywheel max hp/torque limitation?
 
did some searching and couldnt find the max hp/torque your stock clutchs can hold on too. reason being im looking into a s/c soon and need to know if the stocky clutch is goin to be useless lol. im looking to make 450whp.. thanx for any feed back guys

BruceH 09-07-2009 02:02 PM
.......

NJShelby120 09-07-2009 02:06 PM
Originally Posted by BruceH (Post 6477062)
Personal experience here:

361rwhp clutch didn't slip, 408 clutch started slipping in higher gears. 450 will need a new clutch for sure.

Research your clutches carefully especially how they work with the stock slave cylinder. It's a job you only want to do once.
thanx bruce..... what clutch r u using with your whipple?

Stkjock 09-07-2009 05:48 PM
also depends on how you drive it

the stock clutch can live at 400+ if your not beating on the car, if your gonna track it, you'll need to replace it sooner rather than later

FW is fine for bigger numbers

NJShelby120 09-07-2009 06:13 PM
Originally Posted by Stkjock (Post 6477577)
also depends on how you drive it

the stock clutch can live at 400+ if your not beating on the car, if your gonna track it, you'll need to replace it sooner rather than later

FW is fine for bigger numbers
well i dont plan on tracking the car more then a coulpe times if even that. but it needs to hold up as far as the street goes.... i meen i enjoy goose'n it out of a red light once in awhile and if i have too a race here or there depending on what pulls next to me.... im not sure what you would call that kinda driving, but im guessin its a mild beatin on...... i did say 450whp but im lookin at the v3 vortech non intercool kit from brenspeed. a guy claims he made 420whp 381wt with shorty heads, hi flow cats, muff deletes which is pretty much what ill have too. with those #'s and goals what do u guys think now? anyway thanx stkjock for your IMO

BruceH 09-07-2009 07:23 PM
.......

NJShelby120 09-07-2009 09:20 PM
Originally Posted by BruceH (Post 6477810)
That's another story: I replaced the stock clutch with a centerforce dual friction. The centerforce pressure plate was too much for the stock slave cylinder and it went out about 1500 miles after the clutch went in. Faced with either putting in an aftermarket slave or a different clutch I decided to go with a mcleod rst because the stock slave works fine with it and it's rated to hold 800 hp. If someone was asking for advice I would steer them toward the rst. It costs more but it's better to spend the money the first time and only cry once.
thanx again... going to keep that in mind. how about the stock flywheel? did u have to change that? im sure that can handle 400-500whp.....

BruceH 09-07-2009 09:43 PM
.......

cobra443 09-08-2009 02:18 AM
Mine has been holding up just fine. I baby mine a lot though and its only been to the track twice. I plan on replacing it this spring with some of the tax return money.

NJShelby120 09-08-2009 06:05 AM
Originally Posted by cobra443 (Post 6478829)
Mine has been holding up just fine. I baby mine a lot though and its only been to the track twice. I plan on replacing it this spring with some of the tax return money.
nice! hey cobra, how long has your clutch seen 400+ whp? do you recall how many miles you had on the clutch before you went with the paxton? my car only have alittle over 4k miles on it lol so its basically brand new... bought it with 350 miles on it and its a 07 :) thanx man


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