Turbonetics Low vs High Boost

Vince’s car made for an interesting case study on the effects of higher boost on some twin turbo kits for the VQ35. This customer had decided to upgrade his injectors to the Deatschwerks drop-in 600cc’s before his tuning session. As a stocking dealer for Deatschwerks, and other injectors, this was not a problem to complete the install and immediately begin the tuning.

After reaching sufficient gains at his current 8 psi, he requested us to turn up the boost to see if more power could be made. While a bit more torque was made throughout the powerband, this dyno shows that a 3 psi gain in boost resulted in more power earlier, but a significant drop off in top-end power. The Turbonetics kit has been known for providing a nice power curve in its’ off the shelf configuration, but it begins to choke the power at higher boost. Both maps were included for the customer to decide which he preferred better.

Turbonetics 350Z makes 415whp on our Dyno Dynamics

This week we had the privilege of tuning Mike’s 350Z, who drove 6+ hours to have a Haltech installed and tuned here. We fit a Haltech Platinum 350Z EMS, boost control solenoid, wideband, and boost gauge to his blue 350Z. We quickly found the limits of the injectors included with the Turbonetics kit, and replaced them with Deatschwerks 600cc injectors. On a safe daily-driver pumpgas tune we were able to achieve 415whp on our Dyno Dynamics at 14psi. The car left operating like stock, and makes impressive power considering a normal Turbonetics kit produces ~340whp on our dyno.

Mike called the following day and said he needs wider tires