Yes fuel economy will drop.This might be slightly off topic but will adding the 2.85 pulley put a hit on gas mileage? Obviously, yes under heavy load but let's say highway constant speed.. blower will be spinning faster so will that automatically equate to more fuel demand?
I got closer to 100hp as advertised. My duty cycle is good as well.If I'm reading the graph right you gained over 75 HP just with the different pulley and injectors ??
I have the same pulley on mine with a AC Killer Chiller. Also Dynatech header. Previous owner had everything done. He never told me anything about different injectors or fuel pump. He claimed it was 725 WHP. I didn't get the dyno sheets or any receipts. Just thought it was interesting how much power you got just with that pulley. I wasn't aware that bigger injectors were needed with it and a bigger fuel pump. I would think I would notice something isn't right if it was starving for fuel.I got closer to 100hp as advertised. My duty cycle is good as well.
If your engine is starving for fuel what you will eventually notice is a loud boom from the engine compartment.....I had the 2.85 on my Challenger Hell Cat and Charger Hell Cat. I also installed Demon injectors as advised by my tuner. Both cars were dynoed and had no issues with fuel delivery.I have the same pulley on mine with a AC Killer Chiller. Also Dynatech header. Previous owner had everything done. He never told me anything about different injectors or fuel pump. He claimed it was 725 WHP. I didn't get the dyno sheets or any receipts. Just thought it was interesting how much power you got just with that pulley. I wasn't aware that bigger injectors were needed with it and a bigger fuel pump. I would think I would notice something isn't right if it was starving for fuel.
Just talked to guy I bought my car from. There aren't bigger fuel injectors or a bigger fuel pump. Will call the shop that did all the work sometime this week. If I install the Demon fuel injectors will I have to have the car tuned again ??If your engine is starving for fuel what you will eventually notice is a loud boom from the engine compartment.....I had the 2.85 on my Challenger Hell Cat and Charger Hell Cat. I also installed Demon injectors as advised by my tuner. Both cars were dynoed and had no issues with fuel delivery.
Yes, will need tuning.Just talked to guy I bought my car from. There aren't bigger fuel injectors or a bigger fuel pump. Will call the shop that did all the work sometime this week. If I install the Demon fuel injectors will I have to have the car tuned again ??