Clutch Power threshold V7

[bailin]

What power handling capacity does a standard v7 wrx clutch have? in bhp terms

[Guest keltik]

stock clutches seem to be good for 220kw atw or about 240ish at the flywheel.

[Koom]

 keltik said:

stock clutches seem to be good for 220kw atw or about 240ish at the flywheel.

Ask RAC if he's still running a stock clutch. I think he's mentioned his is stock. ~360kw

[BC5RA]

 Koom said:

Ask RAC if he's still running a stock clutch. I think he's mentioned his is stock. ~360kw

Correct me if I'm wrong but doesn't it spend a bit of its time on a Dyno?

[Koom]

 BC5RA']

[quote name='Koom said:

Ask RAC if he's still running a stock clutch. I think he's mentioned his is stock. ~360kw

/quote]

Correct me if I'm wrong but doesn't it spend a bit of its time on a Dyno?

It got tuned on a dyno originally. I don't know him so have no idea how much it gets driven around.

[funkytown]

 Koom']

[quote name='Koom said:

Ask RAC if he's still running a stock clutch. I think he's mentioned his is stock. ~360kw

/quote]

Correct me if I'm wrong but doesn't it spend a bit of its time on a Dyno?

It got tuned on a dyno originally. I don't know him so have no idea how much it gets driven around.

and his is RWD from memory so itl give more in the rubber to tarmac department being kinder on the clutch and transmission

[Koom]

It was rwd for dyno'ing on a 2wd dyno as far as i know. He'd mentioned somewhere putting it back to 4wd once it was done. I was considering doing the same thing as it takes ten minutes to swap over.

[BC5RA]

 Koom said:

It was rwd for dyno'ing on a 2wd dyno as far as i know. He'd mentioned somewhere putting it back to 4wd once it was done. I was considering doing the same thing as it takes ten minutes to swap over.

What method does he use to do that?

[Koom]

A welded centre that has the splined drive to the front diff removed before welding. So it is just a pure rwd diff and not a fully locked centre diff. I have one that was done in a similar matter and it just takes a bit more skill in lining up the remaining spiders when welding as they are free floating until welded unlike a typical welded centre that someone just launched into with a welder to stop the spiders from rotating.

Means you can swap to rwd without needing to remove the front axles. Just jack the back of the car right up, rear plate off the g/box, swap diffs, jobs done.

[nt_a_foz]

Bailin if you havent worke3d out yet after all your questions about what power this will take or that will take there is no set powerlimit on factory parts some people use them to higher power levels yet others cant get f all more than factory out of them before it brakes..

Theres a lot of contributing factors apart from itl take xxxx hp/kw

[driftrex]

my first welded centre diff i had like that, the spline was machined out and that peice had to be welded to the diff body still, it worked good for a while til the welds broke, and this was done by my dad whos an engineer, apparently not enough surface area or penetration (been hardened steel) for the welds to hold, he warned me bout it to start with though lol, however my new one is just spider gears filled with weld, that was done by marshalls transmissions, and i cant break it.

i guess for dyno purposes it would hold up no worries. just dont go dropping the clutch

[bailin]

 nt_a_foz said:

Bailin if you havent worke3d out yet after all your questions about what power this will take or that will take there is no set powerlimit on factory parts some people use them to higher power levels yet others cant get f all more than factory out of them before it brakes..

Theres a lot of contributing factors apart from itl take xxxx hp/kw

Just wanted to make sure that by getting a remap and a dyno.. adding 4okw to standard wrx wont break it...

Serves me right i should have bought an sti......

[DPI]

 bailin']

[quote name='nt_a_foz said:

Bailin if you havent worke3d out yet after all your questions about what power this will take or that will take there is no set powerlimit on factory parts some people use them to higher power levels yet others cant get f all more than factory out of them before it brakes..

Theres a lot of contributing factors apart from itl take xxxx hp/kw

/quote]

Just wanted to make sure that by getting a remap and a dyno.. adding 4okw to standard wrx wont break it...

Serves me right i should have bought an sti......

Yes, you should have...