does sending the cpu unit to vortech for computer reprogramming still require a dyno tune after installation? im contemplating installing a v3 kit. thanks guys.

 

Vortech doesn't reprogram the computer they install a chip, at least thats what they did on mine which is a canned tune, so no you do not need a dyno tune. However with the chip I wasn't able to use my handheld tuner to change my gear ratio turn of my rear 02s etc, so I ended up pulling the chip and having it dyno tuned anyway.

 

like said, its a canned tune. dyno tune is HIGHLY reccomended over a canned tune when you're dealing with FI. they can't predict 100% how your car is going to run by guestimating some numbers.

 

so is a dyno tune strickly done to find out your new hp numbers or is it also to recalibrate your engine? can your car run safely with just the chip installed w/o dyno tuning?

 

Its to recalibrate the air/fuel ratio.

 

Yes you can run safely on the chip, it a conservative canned tune the tune is based on the the information you provide Vortech. A dyno tune is making adjustments to your cars timing, fuel and air supply, to achieve the most possible horse power and torque, while maintaining optimal air fuel ratio and avoiding detonation. Do a google search on dyno tuning and you can good idea of what all is involved

 

the vortech tune is meant for a completely stock car running the base 6-8psi kit

 

i wouldnt ever tell someone they can safely run on a mail order tune. they SHOULD be able to, but the only way to know for sure is have the car hooked up on a dyno to atleast verify the tune.

 

good point, but vortech does offer a 3 year warranty if you run their tune, so they must be confident it's safe.

 

ok thanks for clearing that up for me. If I run a v3 with the aftercooler system, will my stock internals be safe, or would they need to be upgraded? does changing the charger pulley size increase boost level to where internals need to be upgraded?