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Not a good night at the track. I just got some drag radials and moved up to a 100 shot. I did my burnout, staged, and launched. At 3400 rpms the NO kicked in and BOOM. I coasted a few hundered feet, car was dead. When I tried to re-start it, it turned over and would start but immediatly die. I was glad that the lower end seemed fine but was very worried about the intake manifold. I got a tow off the track and started checking.
The MAF screen was toast. I mean litterally it was burnt to a crisp...what was left of it. The air filter was burned up on one side and the MAF was pretty messed up. However, everything else seemed in tack.
I unpluged the MAF and loaded a Speed Density tune I have been working on (Speed Density is a tuning method that uses the MAP, Manifold Air Pressure, insteed of the MAF). The car started right up and I drove it home.
Not a good night but not a bad night. At least I drove the car home.
The problem must have been puddeling of fuel. I think the P&P job on the intake may have saved it because it has less restrictions so the explosion had an easy way out. No matter what, I was lucky.
I am going to run in SD mode and finish the tuning. I am going to raise my lower limit on my window switch to 4000 rpms. That is the rpm that I drop to between shifts so I will only loose a little of spraying in 1st gear. Hopefully the higher rpms will prevent puddeling and prevent a repeat performance. I might start trying to set up a direct port injection, I guess that would be the safest. We will see.
The MAF screen was toast. I mean litterally it was burnt to a crisp...what was left of it. The air filter was burned up on one side and the MAF was pretty messed up. However, everything else seemed in tack.
I unpluged the MAF and loaded a Speed Density tune I have been working on (Speed Density is a tuning method that uses the MAP, Manifold Air Pressure, insteed of the MAF). The car started right up and I drove it home.
Not a good night but not a bad night. At least I drove the car home.
The problem must have been puddeling of fuel. I think the P&P job on the intake may have saved it because it has less restrictions so the explosion had an easy way out. No matter what, I was lucky.
I am going to run in SD mode and finish the tuning. I am going to raise my lower limit on my window switch to 4000 rpms. That is the rpm that I drop to between shifts so I will only loose a little of spraying in 1st gear. Hopefully the higher rpms will prevent puddeling and prevent a repeat performance. I might start trying to set up a direct port injection, I guess that would be the safest. We will see.
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