OK, just got home from the tuners. What an interesting day. Got to my destination and ran the car mostly dry of 91 octane and then filled it with E85 at $2.29/gallon. Now most of you may be thumbing your noses at that price but out here in SoCal, different story. It was so cheap I felt like pumping an extra couple of gallons on the ground! Only $2.29? So start the car and head back to the tuner. The car does not like this new fuel at all. Stumbles, stalls, not good. We pull it in on the chassis dyno.
Hooking up the sensors we have an issue right off the bat. Rear bank O2 sensor is not reading and defaulting to full rich. Diagnostics prove it's a bad sensor so upon it's replacement we fire the dyno up and see where our baseline is. Now this car had been tuned a couple of years ago by the same tuner. Very familiar with the car. For engine management I'm running AEM Series 2. We do the first pull and it's like 317 rwhp. and only 251 Ftlb torque. WTF? So we are checking all the readings and notice that the boost is less than what we had on the car two years ago. I just added new springs with more boost so what gives? We blew the cold pipe off the throttle body! Honest to God it was off to the side and still pumping almost 5psi! So after fooling with a new silicone hose we are finally up to 10psi of boost. Cool, we are now at 358 and 260 respective. Now we can start to tune.
For those who have not followed, I run twin Areodyne turbos. I had them rebuilt by Areodyne and had them replace and upgrade the vane controllers to the new single port design. By adjusting the control rod, you an adjust how quickly the turbo spools and how much power it will make on the top end. I consulted with them and they said I could run the Orange Spring (9#) so with shims I'm at 10psi.
I had the controllers set at one turn based upon the initial tune done years ago with Layla and comparing with NSX Prime member Dave Dozier who took this (Areodyne) platform to a new level. After a couple of runs we backed them out to two (2) full turns and our goals were met. On E85 (it really was only 58% ethanol) and the new tune we were able to put down 445 rwhp and 339 Ftlb of torque. Full boost by 3,700 rpms. I opened it up once on the ride home on a deserted stretch in 2nd thru 4th gear. I couldn't shift fast enough! I remember seeing video's of a former member EAC. His car was point and shoot. This car now has that trigger but more linear, it handles better and stops too. Performance wise, I'm done with the car. In fact it may be too fast for me. Yes, I said it. This car has my respect and full attention.
It's been a journey. Buying my first NSX, the creation of Layla, it's suicide with me attached. Ashes, healing, fear, bewilderment and stubborn determination. The assist of friends and the best wife a man could ever have. And then to find this car, it's build culminating in this moment. I think I'll pour myself a beer, grab a chair and find a nice spot in the garage so I can stare, reminisce, think of friends who have helped along the way and gaze upon it's beauty. What a car.....
Hooking up the sensors we have an issue right off the bat. Rear bank O2 sensor is not reading and defaulting to full rich. Diagnostics prove it's a bad sensor so upon it's replacement we fire the dyno up and see where our baseline is. Now this car had been tuned a couple of years ago by the same tuner. Very familiar with the car. For engine management I'm running AEM Series 2. We do the first pull and it's like 317 rwhp. and only 251 Ftlb torque. WTF? So we are checking all the readings and notice that the boost is less than what we had on the car two years ago. I just added new springs with more boost so what gives? We blew the cold pipe off the throttle body! Honest to God it was off to the side and still pumping almost 5psi! So after fooling with a new silicone hose we are finally up to 10psi of boost. Cool, we are now at 358 and 260 respective. Now we can start to tune.
For those who have not followed, I run twin Areodyne turbos. I had them rebuilt by Areodyne and had them replace and upgrade the vane controllers to the new single port design. By adjusting the control rod, you an adjust how quickly the turbo spools and how much power it will make on the top end. I consulted with them and they said I could run the Orange Spring (9#) so with shims I'm at 10psi.
I had the controllers set at one turn based upon the initial tune done years ago with Layla and comparing with NSX Prime member Dave Dozier who took this (Areodyne) platform to a new level. After a couple of runs we backed them out to two (2) full turns and our goals were met. On E85 (it really was only 58% ethanol) and the new tune we were able to put down 445 rwhp and 339 Ftlb of torque. Full boost by 3,700 rpms. I opened it up once on the ride home on a deserted stretch in 2nd thru 4th gear. I couldn't shift fast enough! I remember seeing video's of a former member EAC. His car was point and shoot. This car now has that trigger but more linear, it handles better and stops too. Performance wise, I'm done with the car. In fact it may be too fast for me. Yes, I said it. This car has my respect and full attention.
It's been a journey. Buying my first NSX, the creation of Layla, it's suicide with me attached. Ashes, healing, fear, bewilderment and stubborn determination. The assist of friends and the best wife a man could ever have. And then to find this car, it's build culminating in this moment. I think I'll pour myself a beer, grab a chair and find a nice spot in the garage so I can stare, reminisce, think of friends who have helped along the way and gaze upon it's beauty. What a car.....