Re: Gen one Dyno #\'s with 200 Shot N2O
Your graph has some problems or questions to be answered:
1. The torque is very good for your mods, although, it seems as though it is out of proportion for the hp increase.
2. As good as the torque increase appears, the drop or negative slope after 3400 is a problem. The torque should not drop off that fast. A good peak number doesn't equate to a win at the drag strip, you want the greatest area under the curve.
I looked at several pulls for different cars and the drop off from 3400 to 5000 is between 100 and 150 ft-lb and you are dropping off almost 300.It has to be the lack of headers. All the pulls I reviewed had headers.
3. You are running dangerously close to the edge with the a/f. Your a/f numbers are not typically dangerous for a stock engine, however, on a NOS engine you don't want to run much more than 11.5-12.0. The dynamics of acceleration, speed and temp are typically trying to lean out the engine relative to a dyno number where you are not moving.
The dyno pull is not as bad as a 1/4 mile run, where you probably would have burnt the plugs. Check all the plugs especially the two on rear drivers side. Look for a burnt tip or splatter on the electrode. Make sure you are running at least one range cooler. The NGK FR5-1 series are a good start.
Are you running propane or gas enrichment and what are the jets sizes? You definitely want to go at least .001-002 larger on the fuel, or back off on the NOS.
