DesktopDyno2003

[Careless]

has anyone used this software to get an indication of what certain mods will do to a specified engine, or a custom input series of variables to dictate what the target engine would be like?

 

I've plugged in some numbers for an N/A RB32DE with 11:1 compression ratio, stock valve sizes, polished and port matched head with sequential injection (the Individual Runner feature is only for carbs for some reason), and some Apex'i and Tomei Procams (logged both, they're almost the same)

 

I seem to be making about 365 hp at 9000 rpm. Granted I wouldn't spin the engine to that speed, but that's where it stops making power. It dips suddenly after that.

 

The torque curve just dips way low after 5500 rpm. at that speed, it's about 280ish lbs-ft (have to go home to check again).

 

My problem here is:

1) I'm not sure if this is an accurate representation of an RB30 bored 40 over and using VG30DE pistons to make a 11:1 compression ratio.

2) I'm not sure if the cam selection is appropriate, but i've been having trouble finding another cam to better situate where the engine focuses its power.

3) If I rev limit to say... 7500 rpm, and since making power up way passed that, I could redline it... if I were to slam it into second gear at a load close to that point, and my revs dropped 2000-2500 into the next gear, I would situate myself at 5000-5500 rpm. Right where torque is. But... that's where torque ends, unless I get into that 5000 rpm leading into the torque peak. Anyone see this as a potential bog issue the same way I do? I'll be in peak torque for a total of 0.5 seconds. LOL.

 

Any comments regarding the program and what settings I should find tune (will post screenshots later) would be helpful in identifying some good combinations to make the engine manage it's useable power range a bit better are appreciated.