Summary of Modifications
Thread Starter
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Summary of Modifications
I think I have finished with the motor for a while (at least for the summer 
) so I put together a summary of the modifications to date. First, was a baseline dyno of the car with only a Donaldson, Z06 cat back and the carbon fiber intake duct. Next, I installed a set of QTP Tri-Y headers with Random Tech cats and "X" pipe. Last fall, I installed an ATI 10% underdrive pulley, Vinci High Performance 056 cam with the following specifications: 216/224 0.551/0.551 115 LSA. Along with the cam, I installed the Crane 832 valve springs and Crane 1.8 rocker arms, so the total lift went from 0.551 to 0.583 and the valve event timing increased slightly as well. This spring I installed a set of Dart 205 heads with Morel lifters. I also removed the Crane 1.8 rockers and installed the Crane 1.7 rockers instead. These are also accelerated lift rockers, but the total lift and valve event timing have been decreased as compared to the cam only dyno. I am pretty happy with the results and am hoping a few minor tweaks might get me to the magic 400 rwhp mark on some dyno day later this year 
I believe I hit my goals of a very streetable car that pulls hard all the way from down low to the rev limit of 6,200 RPM. I also got 33.5 mpg yesterday while cruising in 6th gear. Who says you can't have it all
Note: The curves were digitized so I could cross-plot them in Excel, so the quality of the curves may not be perfect
) so I put together a summary of the modifications to date. First, was a baseline dyno of the car with only a Donaldson, Z06 cat back and the carbon fiber intake duct. Next, I installed a set of QTP Tri-Y headers with Random Tech cats and "X" pipe. Last fall, I installed an ATI 10% underdrive pulley, Vinci High Performance 056 cam with the following specifications: 216/224 0.551/0.551 115 LSA. Along with the cam, I installed the Crane 832 valve springs and Crane 1.8 rocker arms, so the total lift went from 0.551 to 0.583 and the valve event timing increased slightly as well. This spring I installed a set of Dart 205 heads with Morel lifters. I also removed the Crane 1.8 rockers and installed the Crane 1.7 rockers instead. These are also accelerated lift rockers, but the total lift and valve event timing have been decreased as compared to the cam only dyno. I am pretty happy with the results and am hoping a few minor tweaks might get me to the magic 400 rwhp mark on some dyno day later this year I believe I hit my goals of a very streetable car that pulls hard all the way from down low to the rev limit of 6,200 RPM. I also got 33.5 mpg yesterday while cruising in 6th gear. Who says you can't have it all
Note: The curves were digitized so I could cross-plot them in Excel, so the quality of the curves may not be perfect
Burning Brakes
Joined: Jun 2005
Posts: 860
Likes: 0
From: Jacksonville Florida
Originally Posted by vettenuts
I think I have finished with the motor for a while (at least for the summer ) so I put together a summary of the modifications to date. First, was a baseline dyno of the car with only a Donaldson, Z06 cat back and the carbon fiber intake duct. Next, I installed a set of QTP Tri-Y headers with Random Tech cats and "X" pipe. Last fall, I installed an ATI 10% underdrive pulley, Vinci High Performance 056 cam with the following specifications: 216/224 0.551/0.551 115 LSA. Along with the cam, I installed the Crane 832 valve springs and Crane 1.8 rocker arms, so the total lift went from 0.551 to 0.583 and the valve event timing increased slightly as well. This spring I installed a set of Dart 205 heads with Morel lifters. I also removed the Crane 1.8 rockers and installed the Crane 1.7 rockers instead. These are also accelerated lift rockers, but the total lift and valve event timing have been decreased as compared to the cam only dyno. I am pretty happy with the results and am hoping a few minor tweaks might get me to the magic 400 rwhp mark on some dyno day later this year
I believe I hit my goals of a very streetable car that pulls hard all the way from down low to the rev limit of 6,200 RPM. I also got 33.5 mpg yesterday while cruising in 6th gear. Who says you can't have it all
Note: The curves were digitized so I could cross-plot them in Excel, so the quality of the curves may not be perfect
) so I put together a summary of the modifications to date. First, was a baseline dyno of the car with only a Donaldson, Z06 cat back and the carbon fiber intake duct. Next, I installed a set of QTP Tri-Y headers with Random Tech cats and "X" pipe. Last fall, I installed an ATI 10% underdrive pulley, Vinci High Performance 056 cam with the following specifications: 216/224 0.551/0.551 115 LSA. Along with the cam, I installed the Crane 832 valve springs and Crane 1.8 rocker arms, so the total lift went from 0.551 to 0.583 and the valve event timing increased slightly as well. This spring I installed a set of Dart 205 heads with Morel lifters. I also removed the Crane 1.8 rockers and installed the Crane 1.7 rockers instead. These are also accelerated lift rockers, but the total lift and valve event timing have been decreased as compared to the cam only dyno. I am pretty happy with the results and am hoping a few minor tweaks might get me to the magic 400 rwhp mark on some dyno day later this year I believe I hit my goals of a very streetable car that pulls hard all the way from down low to the rev limit of 6,200 RPM. I also got 33.5 mpg yesterday while cruising in 6th gear. Who says you can't have it all
Note: The curves were digitized so I could cross-plot them in Excel, so the quality of the curves may not be perfect
