I want to turbocharge my car in like a year or two and i was thinking by then i will need a new motor. Should i swap in a 3.4 with its 9:5:1 compression? Will that work good with turbo? I would just rebuild the old 3.1 but id like to save the money and get more power from just a quick and easy swap.

 

I don't see why not... Tiago added what, 12 psi to one?

 

last i saw (which may have been a lil while ago) tiago was only running 5psi safely, and up to 7 or 8 psi. but that 330ish HP and close to 400 torque was just damn impressive no matter how you look at it!!!!!! GO DOWARD!!!!!!!!!!

 

Yeah... 3.1's taking 11psi right now... oh man though... I wish you guys could see what I've got in the works right now

 

you can tell us doward

 

and pictures too doward.

 

Anyone have or know of a chart that shows compression ratio increases based on boost psi?

 

is it alky injection???

 

*laughes*

Nope, nobody is correct. Let's just say that... something I saw recently (in the last month) just finally ticked me completely off, and I'm doing something about it... a LOT of something.

 

Holley (Wieand) has a chart in thier catalog, it may also be online on thier site.

As for turbocharging a 3.4, go for it 9.6 SCR is nothing to worry about. With a proper tune you could easily run up to 10 PSI without changing any internals.

Just make sure there is sufficiant fual and spark timing to run smoothly.

I ran up to 9 PSi on my mildly modified hybrid 3.2L and the pistons still look brand new when I pulled the heads off to upgrade to the 3400 heads.