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Where is the pcv valve located the V8? How much HP can the stock rearend handle?
Posted by: NYC LS8
There is no PCV valve on the V8s.
And it's more a question of how much HP/TQ the rear half shafts can take first. Nobody's ever really been to that point.....yet.
Posted by: jbas9210
I've heard that they can only handle about 300HP. Have other people been having trans problems?
Posted by: 97stscaddy
Ask QuikLS if he's had any trouble.
Posted by: Quik LS
right - it's not HP but Torque.
the 5R55N is a 5 speed non-syncro trannie that can handle 550ft/lbs
Remember the your torque converter multiplies the engine torque from a max of 2-to-1 to a min of 1-to-1 once it locks. So the key is to overlay your torque curve over the converter lockup and ensure that you never surpass it.
We are able to get over 400ft/lbs to the rearwheels now but never past the 550 mark before the lock....
The new Mustang uses a 5R55S - and they are getting big power out of those now - Level 10 is making some kits now I believe (even a ADO swap) -> http://www.levelten.com/index.html .
The limit of the stock 8" open diff is more likely an abuse issue than a pure torque issue. pounding the go peddle from a standing stop with a power adder is more like to break it than a careful WOT run. But since we can drop a 8.8" LSD into it - there is a cheap and easy upgrade.
