Hey All,
Im new to this forum and also new to tuning in general. Some background. Over the last 8 years i built my dream car. Me Not being a professional when it comes to swaps I of course had help along the way to get the car done by various shops and friends. I had recently just purchased HP tuners MPVi2 and started learning as i go. I just pull the current tune and also recorded a pull. I mainly did this just out of pure curiosity to see what my car is doing.
The reason for this post is because my current tune is currently unknown to me as to if its good or bad. I'm looking at different numbers on a 3rd gear WOT pull and nothing jumps out to me as weird or alarming. Then again what do i know haha... The issue I'm currently feeling is that the car feels a little underpowered in the higher rpms. low rpm power feels good and no idle issues. Does any of the guru's here have any advice on this current tune on my car? I just want to know if its good to go or its no good and stock was better lol. I did not do the tune and this was done by a shop years ago. I do have a BBK 80mm TB i wanted to install but this tune apparently didn't like that part being on there with revs hanging on neutral deceleration so i swapped back on the stock TB.
Engine:
2000 LS1 5.7 V8 from a Pontiac Firebird (stock)
Trans:
LS1 T56 6 speed
Rear diff:
1970 12 bolt rear 3.73 gears
Wheels and tires:
Fronts are 18x8 and rear sizing is 18x9.5
245 front and 275 rear tires
Mods:
Speed Engineering LongTube LS swap headers 1 7/8 Primaries
Pypes 2.5" X pipe with Race pro mufflers
Custom built cold air pipe and Green Filter Cone
TanksInc EFI fuel tank with Walbro 255 fuel pump and Corvette Fuel Pressure Regulator
Im attaching my current tune and my full throttle 3rd gear pull to 5100 rpm. Any advice or help is appreciated! Thanks all!