Sandrock

iTrader: (26)

My 3rd Gen is running. But on the dyno only made like 200whp,. The Engine is new, and it wasnt doing this before, but even through boost its not making any power, and the ignition is breaking up and missing pretty bad. Changed the plugs, Plugs cables and a different set of coils,. same deal. Anyone have any ideas?

Running PFC
1000cc pri /1600cc secondaries
GT40R setup.

Just switched out coils, 9 heat racing plugs all around. new wires. no idea..

Banzai-Racing

iTrader: (11)

What RPM/boost does then break up occur?

Do you have an ignition amplifer? HKS twin power?

What are your AFRs when the break up happens?

Sandrock

iTrader: (26)

its throught all RPMS, but if i rev it, it will start to hang up at around 3k. I had a twinpower but i took it off. Its running fairly rich right now,. prolly around 10-10.5.. Once I get to driving, if you maintain a constant speed you can feel it miss occassionally,

Banzai-Racing

iTrader: (11)

That is beyond "fairly" rich, we do not hit 10-10.5 even in high boost tuning. Cruising you should be at 14.7 or leaner (depends on where the car is the happiest)

Make sure your plug wires are on the correct plugs.

Sounds like you need tuning.

wstrohm

Check out posts #42 and subsequent in this forum thread.

Sandrock

iTrader: (26)

yeah i just put a new set of coils on. the plug wires are correct. There are some grounds on the engine already,.. I dont know when we put the new engine in if we hooked all of them back up, because someone thought it was cool to use red cable as ground cable. But yeah its right around 3k at just revving, and driving its more of a random miss. And the car has like 0 ***** right now. lol.