I have a 2006 Infiniti g35 with a 3.5 V6 and was thinking of putting a turbo on it but I don't know how much boost it can handle. It has the 6 Speed Manual trans I just don't want to nuke the motor by putting too big of a turbo on the car

 

Stock N/A compression. Of 13:1 or so the rule of thumb is 8 psi but HIGHLY subjective, actual operating conditions makes a massive difference.

 

Is running 8lbs of boost really noticeable?
I've never drove a car with a turbo ..

 

what could i do so i could do more PSI? i have never turboed a car before and dont want to nuke that engine

 

Well that's highly subjective and a matter of personal perspective as well. If you're accustomed to making jumps in +300whp increments like tuning a GTR then it might not feel noticeable.

Most people will notice a +100whp increase though.

If you want to go with more boost you need to lower the compression, so new pistons. To exceed ~400whp you need stronger connecting rods and arp studs, usually a HR head gasket modification as well as a rev-up oil pump. This also assumes a FULL rebuild and should allow you to make ~550-600 or so whp. You're also looking at substantial cooling system upgrades and definitely a return fuel system. Your OEM mounts will definitely be destroyed so those are a must for the entire drivetrain as well.

If you want more than that you're looking at cams and stronger valve springs, oversized valves, even stronger connecting rods, etc. In optimal conditions you can make 1400whp or so but the motors are only good for MAYBE 60k miles when you're pushing more than 1000whp. The engine has potential but it definitely doesn't have the longevity of a VR38DDTT or RB26DETT or LS3 or other motors that were designed to be built to extreme levels and can make a few thousand WHP before they explode.

I'm guessing you're not really super serious about making big power though. For OEM components don't go turbo, just get a supercharger kit like the Vortec and bolt it on, otherwise you'll probably explode your motor when you dump full boost torque onto OEM rods.

 

Also, most stock forced induction vehicles run about 8psi.

 

Posting a ? that's been asked, answered and talked about for YEARS rather than reading up on the subject leads me to believe you do want to "nuke" the engine. Try it with 16psi to start.

 

I honestly don't' understand how in 2018 there are people who will go through the trouble of creating a forum account rather than typing a sentence into Google and hitting enter.