Ok so I bought a used QM twin disc and Im getting ready to install this thing and just curious if anyone with experience with these can tell me if i should install the isuzu slave and a pedal stop. I have search this subject and cant find any info on it also if anyone know's where to find dsm/gvr4 specific install info I.E how much material and where it needs to be removed from the stock clutch fork that would be great too thanks.

I used the stock slave and no pedal stop with mine.
I set the clutch up on a bench and assembled the fork and throwout bearing then laid the fork on the clutch housing to see where the bolts would hit and ground away that area only.
Took a decent amount of time till I could rotate the fork all the way round the clutch housing without it hitting any of the bolts.
That seemed to be the easiest way to do it without having the motor out so you could test fit everything easily.
I was a bit paranoid about it hitting though!

Ok since this is used you need to check it first. It may be fine but you don't want to install it and a month later smoke two disks that are about 220 to replace plus the time and effort to pull it again.

first you need a slab of marble or something known to be dead flat. Thick mirror etc. Set the flywheel face down and measure the inside of the friction area and do the outside with a feller gauge do the same to the pressure plate disk friction surface. I can't remember the specs on it but I'm sure a quick call to QM or PTT will get the specs they cup from heat. Its steel under tremendous load and heat and will cup do all the way around it. Now for the disks measure the thickness all around and get an average thickness also get the specs for it. The disks are only allowed like .008 total loss or something like that so It might look perfect and plenty of material left but may be junk. When my thrust went out I was about 70 miles from home and kept trying to adjust the clutch and nothing help so I limped it home. I had worn off like .070 total on both disks and Steve (I think that's his name) at PTT couldn't believe I got home.

As for the isuzu slave. I used it on mine and didn't build a stop because I never slab it to the floor and never over extend it anyway so just a waste for me but a stop would be easy enough to build. I found my slave out in the shop other day and some how one of the new bolt holes I drilled broke off so I'll have to get another or just have a stock one bored out and the piston from the izuzu installed in it. Alot has to be cut off the ears for the mitsubishi bolt holes to line up but a hack saw and a drill will only take a few minutes. Measure and mark 4 times cut once.

I drove Brians car when he had just the accumulator installed. It was very, very manageable, not much more aggressive than my 2600/6 puck setup.

When my QM goes in, Im going to strictly swap the clutches, then later add the accumulator and 2g slave just to see how each piece affects the clutch on my setup.

good info thanks guys. Any advice on where to pick up the 2g parts jnz or dealer?

Id just go through JNZ. They wont jerk you around like a dealer may.

ok so i went to jnz they dont have a accumulator listed does anybody have the part #'s? and are both the slave and accumulator from the fwd and not awd?

I run the QM on my talon. I love it. I have the 2G slave and accumalator, I can slowly the pedal out and inch the car forward as needed. I probably couldnt do that without the accumalator. No stop yet I run the pedal a little low. I talk to shep about the stop he said over time it can over extend the fingers on the pressure plate, and cause some stuff to warp. I like the idea of installing a stop where the switch is. I looked right over that.

by then maybe mine will be back together too!

I had to find mine at a junkyard. Of course I never got around to installing it and went back to a single disk because I don't give a shit about racing anymore. Sold it to somebody. Don't remember who.