SE 551 cam, Heads by Wes brown (Cycle Rama), 1.725 ratio intake rockers, Throttle body massaged, Supertrapp 2-1 exhaust.

 

Nice power despite the dip from 2.5k to 3.k

 

Stage 1 includes SE air filter, Cobra El Diablo 2-1, PCV now running custom map.

 

Nice! Looks pretty decent. Was hoping to see a flatter torque curve outta that pipe. I am curious to see what the TTI's do to it.

 

What Bassani pipe are you running? Congrats on the nice results!

 

I was hoping for flatter at 2.5k up. Not sure how to solve that at this point without throwing a lot of money at it. Ridability is good, and it's smoother than with the borrowed map, with a little burble on decel. I tried getting at the internals on the muffler on Saturday, but couldn't get the end cap to budge. I'll work on that some more and see what we can do about trying a DK Custom product in there.

 

Thank you very much. I am running Bassani Road Rage Mega Power Exhaust. Bassani part number 1X22RB
Revzilla part number 898387

 

looking back through other's results, it appears that a longer distance from exhaust port to collector results in higher torque in the 2.5krpm -3.5krpm range. See: D&D Bobcat, Bassani RR Mega

I'm wondering if I could fake a longer collector distance by making some sort of laminar flow insert in the existing collector to effectively separate the headers a few more inches.

 

I wouldn’t worry about anything under 3000rpm at the very least!!!!! That power curve is horrible imho. I’m guessing it’s the pipe. Starts off weak, hits hard then the party is over very fast. Exhaust is HUGE on these engines! And I think that’s why your power curve is less than desirable

 

Just curious to gain further knowledge from someone with way more experience on the subject than myself. Is the curve shown on kmontague's graph in post 151 what you would consider desirable since it comes on immediately and stays nice and flat all the way across the RPM range?