Thinking about neutering the Turbo Volvo
Sept 14, 2015 20:30:44 GMT -5
Post by 81pumagtc on Sept 14, 2015 20:30:44 GMT -5
I am thinking about neutering the Turbo Volvo. This one has a additional "Turbo +" kit, which had to be added to a 760 by the dealer. The "Turbo +" kit had a re-mapped ECU, different turbo, larger intercooler, and higher output injectors.
All in all, it added about 40 horsepower.
The "Turbo +" kit was an expensive factory option for the 780, which was a coupe. When you got this option, Z rated tires were part of the package. If you added a "Turbo +" kit to a 760, if you did not have Z rated tires, the dealer set the ECU so that the car could not go faster than 121 mile per hour, because that was the top speed you could drive the tires at. Mine, of course, does not have the Z rated tires.
I can swap the ECU and injectors with original items, which will work fine with the the larger intercooler and larger turbo. The injectors and ECU are cheap.
This would reduce the horsepower by 40, but it would still leave 180 horsepower, which still makes the car really scoot. The important thing would be that fuel milage would be substantially improved when I dip into the throttle.
I went out last week and played pretty hard with the car. Found out that when you hit 121 miles an hour, it's not pleasant.
Found out that it's really thirsty when you drive it hard...
I called a Volvo dealer that does a lot of high-performance mods, and found that this was normal. These turbos get about the same mileage as a big V8 when you make a lot of horsepower...you can only get so much work out of a gallon of gas. I remember when I flogged the SVO Mustang, I only got about 15 miles to the gallon.
Let me know what you think.
Dave Riedle
All in all, it added about 40 horsepower.
The "Turbo +" kit was an expensive factory option for the 780, which was a coupe. When you got this option, Z rated tires were part of the package. If you added a "Turbo +" kit to a 760, if you did not have Z rated tires, the dealer set the ECU so that the car could not go faster than 121 mile per hour, because that was the top speed you could drive the tires at. Mine, of course, does not have the Z rated tires.
I can swap the ECU and injectors with original items, which will work fine with the the larger intercooler and larger turbo. The injectors and ECU are cheap.
This would reduce the horsepower by 40, but it would still leave 180 horsepower, which still makes the car really scoot. The important thing would be that fuel milage would be substantially improved when I dip into the throttle.
I went out last week and played pretty hard with the car. Found out that when you hit 121 miles an hour, it's not pleasant.
Found out that it's really thirsty when you drive it hard...
I called a Volvo dealer that does a lot of high-performance mods, and found that this was normal. These turbos get about the same mileage as a big V8 when you make a lot of horsepower...you can only get so much work out of a gallon of gas. I remember when I flogged the SVO Mustang, I only got about 15 miles to the gallon.
Let me know what you think.
Dave Riedle
Or, you may be able to adjust your wastegate boost setting. And keep it under 80. Anything shaped like a brick is going to take a lot of gas to push it through the air at high speed. The power required to overcome wind resistance goes up as a cubic function. That is, doubling your speed requires 8 times more horsepower (and 8 times the gas).