cpayne
12-31-2004, 08:14 AM
<center><img src="http://pictureposter.audiworld.com/9882/dyno3.jpg"></center><p>
Well decided to stop down at Mac Autosport for a dyno run to compare my latest chipset to my previous from MRC. Oddly enough Mike Peterson was down there also with Pete Tsai dynoing his custom GT30 with KKK flanges. He is working out a boost issue but I think his end results should be awesome!
My results were good but had 1 issue:
-1) Found a exhaust leak on my manifold..3 nutz around cylinder #5 getting loose (thx Pete for finding that and we got it fixed..after above run)
- New chipset increased timing 4500-5500 and less timing after 5500 and a bit more boost up top 22'ish to redline
The increase in timing gave me around 20 HP more between 4500 and 5200 RPM and got rid of that dip we saw in the previous run..but the retarding of the timing at 5500 hurt top HP numbers. (Clearly seen in the attached dyno)
Working w/ Mihnea to get an updated fuel/timing chip to bring back the timing that we had in the previous chipset in particular that 5500 and above range. Think after that we should be good!
Well decided to stop down at Mac Autosport for a dyno run to compare my latest chipset to my previous from MRC. Oddly enough Mike Peterson was down there also with Pete Tsai dynoing his custom GT30 with KKK flanges. He is working out a boost issue but I think his end results should be awesome!
My results were good but had 1 issue:
-1) Found a exhaust leak on my manifold..3 nutz around cylinder #5 getting loose (thx Pete for finding that and we got it fixed..after above run)
- New chipset increased timing 4500-5500 and less timing after 5500 and a bit more boost up top 22'ish to redline
The increase in timing gave me around 20 HP more between 4500 and 5200 RPM and got rid of that dip we saw in the previous run..but the retarding of the timing at 5500 hurt top HP numbers. (Clearly seen in the attached dyno)
Working w/ Mihnea to get an updated fuel/timing chip to bring back the timing that we had in the previous chipset in particular that 5500 and above range. Think after that we should be good!