mrr23

iTrader: (3)

i forget this section is here. this is on a 2000 pontiac formula.

ok here's the dyno results. the biggest thing you'll notice is that as rpms go up, the gap keeps widening. this tru-dual is on a stock car with only add on is slp airlid and k/n filter. dyno runs before on macedo motorsports graphs, i had the lid and filter on. now with more power added later, the exhaust will continue to grow with it. not become a restriction later. some will look at it as not any better than every other single exhaust out there. but, look at the end result. the more you add to it, the better it can handle it. remember my track results showed .2 and 2 mph NA and .3 and 3 mph with 200 n2o added to it.

first graph: this one is second gear from 10 (700 rpm) mph up reason for doing this is to try and get the lowest rpm reading possible. and in the 2000 up f-bodies, you can put the gear selector in 2nd gear and it'll start off in 2nd. no downshift. as you can see, the winpep7 didn't start reading until about 2300 still. bad thing about winpep7, it'll throw out data if there is too much rpm vs speed difference. basically TC slip. you'll notice where the converter starts to reach stall speed, it starts reading.



for repeatability here's every run made.


now, vinci still uses the original dynojet software. you'll notice on these graphs start at 700 rpm. the older DOS based software isn't as susceptible to TC slip. it has somewhat of a brain. and you can see the torque stall reading. kinda shows the stock stall around 1200 rpm. you'll notice the curve starts the upward trend about 2100. and that's where the winpep7 starts recording at. the main reason why vinci won't upgrade to windows based operating winpep7 program.

again 2nd gear start. to give the broadest rpm range possible. also, i didn't have a baseline on vinci's dyno before adding the bassani tru-dual. these are back to back run. trying to get repeatability.


and here's a 3rd gear run. again this is back to back. not a before/after.