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Tuning the SR’s detuned engine
- Thread starter Ti421
- Start date
- Watchers 5
Can you include the graph legend and potentially more information on fuel used, etc?Had an SR on the dyno today, thought I'd share the results. The SR makes some 'JAM'!
*Note* This is on the native SR Calibration.
I now have both the Cobb tune and the Camtuning tune and will give a better longer review later.
First both vendors were excellent and responsive. The Camtuning was built for my SR with flowmaster muffler, and 92 octane. The truck is traction limited on 265 K03 in can even get a little squirely in 2nd. Just a great tune and strong throw your head back downshifting and low-mid pull. Fuel economy took a 1 MPG his with this tune but I drive like I stole it, around 22.5 MPG with truck tires. I drive everyday on the Cobb 87 tune, this is a more drivable oldman tune, it is a little less sensitive to throttle and its overall low end torque is slightly soggier than even stock (you can see the dyno runs on Cobb's site). This makes the truck IMO better behaved, it has a strong pull on dry road but does NOT put the truck into traction control mode (Camtuning will slam it into traction control mode if you just floor it). So for all practical purposes it is more plug and play giving about 290 engine HP on 87 and drive it like a stock truck. Not as fun or as aggressive as the Camtuning but hey it is 87 octane. Both tunes put the traction control info screen warning stuck on, can't be cleared (when traction control is turned off). MPG on Cobb is about the same as Camtuning which is kind of surprising since I drive normal oldman style with Cobb, note that 22.5 MPG is pretty good on truck tires and a 4x4 and I do farm work. The only issue and it not even a gripe, on long up hill pulls to 4,000 ft, the Camtuning relies or torque and does NOT downshift, I think this puts the engine close to the turbo coke flow range and also just does not feel all that great. I manually down shift 1 or 2 gears and there is no issue, I'm just noting the behavior (I picked sport mode for trans shifting when I got the Camtuning tune), once again not a big deal and few people live on the world's largest volcano.
First both vendors were excellent and responsive. The Camtuning was built for my SR with flowmaster muffler, and 92 octane. The truck is traction limited on 265 K03 in can even get a little squirely in 2nd. Just a great tune and strong throw your head back downshifting and low-mid pull. Fuel economy took a 1 MPG his with this tune but I drive like I stole it, around 22.5 MPG with truck tires. I drive everyday on the Cobb 87 tune, this is a more drivable oldman tune, it is a little less sensitive to throttle and its overall low end torque is slightly soggier than even stock (you can see the dyno runs on Cobb's site). This makes the truck IMO better behaved, it has a strong pull on dry road but does NOT put the truck into traction control mode (Camtuning will slam it into traction control mode if you just floor it). So for all practical purposes it is more plug and play giving about 290 engine HP on 87 and drive it like a stock truck. Not as fun or as aggressive as the Camtuning but hey it is 87 octane. Both tunes put the traction control info screen warning stuck on, can't be cleared (when traction control is turned off). MPG on Cobb is about the same as Camtuning which is kind of surprising since I drive normal oldman style with Cobb, note that 22.5 MPG is pretty good on truck tires and a 4x4 and I do farm work. The only issue and it not even a gripe, on long up hill pulls to 4,000 ft, the Camtuning relies or torque and does NOT downshift, I think this puts the engine close to the turbo coke flow range and also just does not feel all that great. I manually down shift 1 or 2 gears and there is no issue, I'm just noting the behavior (I picked sport mode for trans shifting when I got the Camtuning tune), once again not a big deal and few people live on the world's largest volcano.
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