yeah, they're extremely similar in the placement of the crossover. where could I get the diagrams for Cartuning's kit though?

 

I was thinking the same as above- if you want to go the supercharged route- I've seen numerous M90 charged 3100/3400's with the M90 remote mounted up front by where the stock airbox was. I can't imagine you'd have to redo all that much to make that setup work (other than tuning of course)- that is assuming you can find one of those kits. Only thing I'd be worried about is them changing belt routing- but it shouldn't be too hard to get it to line up somewhere on the belt line.

For a turbo, you really don't need all the diagrams of the V8 cartuning kit and such- I imagine its the same as the 3800 setups at it's core. Assuming your exhaust manifold setup is like the 3800's (front/rear/crossover)- it shouldn't be that hard to add a turbo, and you shouldn't have to mess with either manifold.

What the 3800 kits mostly do is block off the stock downpipe connection (so the exhaust from the rear bank has to come forward, up the crossover)- then the crossover is removed, and a turbo flange and wastegate setup are built onto it- then a new downpipe is made to get from the turbo exhaust outlet back down to the stock exhaust. Then its just a matter of hooking up the oil lines, and running your intake plumbing. That way, the stock crossover still bolts in- and you're only really majorly modifying 1 piece of the stock engine.

With that said- it would be a good idea to look at your rear manifold design to make sure it won't be a massive restriction to have the rear bank exhaust make a U turn and loop back up the crossover.

If you're looking for 100% bolt on options- there are none right now.

 

so the setup would only need to be something under the lines of this? Cartuning Performance 3800 Turbo Kit: 3800 Performance

That looks like it would actually be relatively easy to do...

 

Yes- you can see the only stock parts that are actually removed/changed drastically are the downpipe and the crossover- everything else remains factory.

The only different thing they do there than I was talking about is that they integrate the wastegate into the downpipe blockoff instead of mounting it up on the turbo/crossover area. Depends what turbo you go with though- if you're doing a junkyard turbo build, it'll likely have an internal wastegate.

 

Honestly, i'm probably going to go with all new parts (the parts that are needed, not like ALL new parts, manifolds and all lol). Quite a bit more pricey, but I just think that way I can pick what parts go best with the setup. Should have a longer life-span that way too.. one question though: Do you think the setup will transfer to a 3.9 once my 3.5 gets up there in mileage? I think I'm eventually going to swap

 

im pretty sure itll swap over the 3.9 is very similar to the 3.5s. go for it. make sure to make a thread once you get the project under way.

 

I was considering this as well, go for it... from what i understand its very VERY similar. Shouldnt be a problem after the 3.5 is taken out.