MEGATUNE VS TUNERSTUDIO FULL

MEGATUNE VS TUNERSTUDIO FULL

Well I allowed tunerstudio to 'self tune' at part throttle, and it drastically reduced the VE number in the 95 cell.ДЄnyway, what I came to find out was that under full throttle, the MAP reading drops to 95 at 4000 rpm. I used to have the VE numbers the same in the 95 & 100 rows, but that was causing a rich issue at part throttle. Historically I've had the VE table with the left columns reading: I couldn't figure out what it was until I looked at the MAP reading. I was experiencing a lean spike at 4,000 rpm.

Disclaimer: I'm not liable if you blow your motor trying to run 30*+.ДЇor those who are 'new' tuners and reading this thread to tune their cars, I ran into an interesting situation last night worth telling about. Every motor is different so what worked on mine may not work on yours. Further, this is the actual MBT for my motor on 93 octane, and MBT was reached before knock. All I want you to take away from this curve is adding timing after peak torque was VERY beneficial for my motor. That is within the range of measurement error, though it's very possible that the engine sees timing at 10% less than commanded. I found 1-2* of retard (light vs commanded) at 15-18*. Point worth noting: I marked TDC on my balancer and put my timing light on the motor to verify what the MS3x is commanding is what the motor is seeing. DON'T YOU DARE use this curve and expect it to work - way too much timing for most - you'll blow your motor ) Guess not with my build.ДЄnd my timing curve. I expected the hp peak to be below 6000 rpm, as that's where this cam peaked on 5.7's & 6.1's with a normal intake. Honestly, I did not expect the motor to pull this high with this little cam. Neither of us heard any knock the entire day, including when we tried 2* on top of our final curve just because (dropped power across the board, did not knock though). Craig at Bumbera's was listening, and I was doing the same through a microphone clipped to the knock sensor point on the block. ~300 rwtq from 3,000-7,000 will do just perfect for road racing.ДЄll on 93 octane unleaded. I wanted more peak torque, but I am very pleased with where we ended up. Ended up with more timing in the higher rpm range than most. We kept adding timing until it dropped power, and backed it down 2* to the previous higher point. We started the day in the 370's (rwhp) using a modified stock 5.7 timing curve. Straight 30 weight conventional oil for all pulls. Megasquirt 3x engine management tuned by me. TKO600 standard tranny, ford 9' floater rear, 3.60:1 gear with locker, heavy wheels all around. Picked the car up A LOT driving it home.ДЇorged 5.7, 11.6:1 compression, 03-08 GTP Extreme heads, Hilborn intake, custom shorty headers welded by me (around P/S box), 218/224 on 113.5+2 (xfi exhaust lobes- very mild)

Megatune vs tunerstudio