Re: Which torque converter for 80e
Jeff, you said the PTC was too racey. what did you mean by that? I was thinking about calling them to because their web site is limited on info.
I said PTC but I should have said precision. No personal experience with PTC.
The precision does have the muti clutch lockup.
To me and I know Jeremy felt the same the precision basically didn't move until you got near stall speed. Where my yank, jeremy's coan drive almost like a stocker, yet when you put power to it stalls where you want. If you not in a hurry at nats I am sure myself and Jeremy can take you for a ride/drive so you can feel how smooth they are even though we both stall around 3400.
When I ordered mine I talked to yank about the WOT lockup and they all agree it will kill the convertor quicker. Jeremy's coan lasted about 3 years of pure abuse.
What yank said those is the efficiency near WOT will be close to 1:1 anyways so lockup shouldn't be needed.
Not saying I agree 100% with this I think it makes a difference. For example Jeremy's sy with stock motor and turbo just doesn't like to spin very fast so we lock up the convertor. In fact at one point going down truck we shift and lock things up so quick the rpm drops to 2800 rpm, well below his stall speed for launch. What it does for his truck is load it and take advantage of the huge torque his stock motor makes and keeps it turning slow, loads it up boost moves up to 26psi or so and the truck moves on out.
Now a vortec headed motor, built motor etc that spins and makes peak power higher up the curve doesn't need nor would you want to shift early, lockup and bring rpm down to 2800. In that case lockup is not as important.
My truck I have yet to lockup, still tuning and trying to make it work.
So I guess it depends what your looking to do, how you plan to drive it, are you planning to get every last .05 seconds of et out of it.
I looked at the circle D website other day and they look nice, offer free restall I believe and have a nice lockup rated for 1600hp or so also.
I have heard good things about neal chance also.
Not bashing or saying any convertor better than the other just they are a bit different from Jeff's view point. Your opinion my vary.