single vs twin discussion
11-05-2013, 04:26 PM
#21
You could always just run 1, and tell the pcm they are all on the same bank, and run it after the merge.
On the twin side, it seems like most smaller turbos are less efficient (on the compressor map) but the power difference can easily be made back up by the hotside (lower backpressure). Also the power it takes to accelerate a wheel goes up by the square of the radius (so even if the wheels weigh the same, the smaller diameter still wins).
On the twin side, it seems like most smaller turbos are less efficient (on the compressor map) but the power difference can easily be made back up by the hotside (lower backpressure). Also the power it takes to accelerate a wheel goes up by the square of the radius (so even if the wheels weigh the same, the smaller diameter still wins).
11-05-2013, 05:43 PM
#22
mine worked for a long time but when it really needed to do trims the banks would fight each other. so i just had to turn them off and do wide band tuning. i have thought about just puting them side by side in the down pipe. that way they get the same readings.
11-06-2013, 02:30 AM
#25
Any time the left bank adds fuel the right side sees it and then it trys to lean out after that they just start fighting. if you could isolate each side you wouldn't have that problem. i had this issue with two trucks so far, mine included. so i just turned them off and on long trips i just bring my laptop and data log then make changes when i get gas. take all of 2 minutes to do tops.
11-06-2013, 09:46 AM
#26
A T6 S480 with a spool valve is going to be hard to beat for ease, cost, power, and transition time. The hardest part will probably be fitting a large enough (3.5"-4") down pipe.
A pair of smaller turbos with the same power potential, and amazing spool time/transition time will be easier on the downpipe side---a pair of 3" pipes will go right where the stock exhaust goes.
A pair of smaller turbos with the same power potential, and amazing spool time/transition time will be easier on the downpipe side---a pair of 3" pipes will go right where the stock exhaust goes.
11-06-2013, 06:50 PM
#27
I was referring to setting this table to the passenger side only (all 1s should be bank 2) and try it.
This table is used when using on motors with different firing orders (like when retrofitting an LSx PCM to an SBC or LT1). It tells the PCM which bank the injectors are on.
It should be ok with only 1 sensor, many GM V6s only use 1 pre cat O2 sensor.
This table is used when using on motors with different firing orders (like when retrofitting an LSx PCM to an SBC or LT1). It tells the PCM which bank the injectors are on.
It should be ok with only 1 sensor, many GM V6s only use 1 pre cat O2 sensor.