Paolo Castellano
Enthusiast
Hello all!
I would like to take this opportunity to share some of the data from the AEM datalogging we have done on John D'Amico's 1997 Gen 2 DIY twin turbo Viper GTS.
I recently put a little bigger turbo on the car with the new air intake system and intercooler setup.
I initially did some AEM datalogging while John D'Amico was driving to monitor the air-fuel ratios with basically the same tune the car had on it before the upgrade.
Rogue GTS, Bill, has done the datalogging this last week while I have been driving.
We basically upped the boost very incrementally and monitored the air to fuel ratios and the car still had enough fuel at almost 10 PSI where we had the boost cut set.
We were confident the car would have enough fuel to run that boost and decided to bring it to the Sound Performance dyno day yesterday and were pleased to put down 796 RWHP and 782 RWTQ on the stock fuel system stock motor, throttle bodies and heads. The only thing this car has on it is my turbo system, T&D's and a boost-a-pump and AEM.
It took about 5 pulls on the dyno to not hit the boost cut since the boost controller solenoid duty cycle was set for 10.0:1 air to fuel ratios.
The car made 735 RWHP on 10.5:1 at 8.5 PSI
When we leaned it out a smidge, it was hitting the 10 PSI boost cut almost instantly.
So, on the 6th run when the car was definitely not as cool as I would have liked, we pulled the #'s you see on the dyno graph.
I would like to take this opportunity to share some of the data from the AEM datalogging we have done on John D'Amico's 1997 Gen 2 DIY twin turbo Viper GTS.
I recently put a little bigger turbo on the car with the new air intake system and intercooler setup.
I initially did some AEM datalogging while John D'Amico was driving to monitor the air-fuel ratios with basically the same tune the car had on it before the upgrade.
Rogue GTS, Bill, has done the datalogging this last week while I have been driving.
We basically upped the boost very incrementally and monitored the air to fuel ratios and the car still had enough fuel at almost 10 PSI where we had the boost cut set.
We were confident the car would have enough fuel to run that boost and decided to bring it to the Sound Performance dyno day yesterday and were pleased to put down 796 RWHP and 782 RWTQ on the stock fuel system stock motor, throttle bodies and heads. The only thing this car has on it is my turbo system, T&D's and a boost-a-pump and AEM.
It took about 5 pulls on the dyno to not hit the boost cut since the boost controller solenoid duty cycle was set for 10.0:1 air to fuel ratios.
The car made 735 RWHP on 10.5:1 at 8.5 PSI
When we leaned it out a smidge, it was hitting the 10 PSI boost cut almost instantly.
So, on the 6th run when the car was definitely not as cool as I would have liked, we pulled the #'s you see on the dyno graph.
