brokeassz28

So i take my camaro out the other day out to my local road to make a pass, and just as i hit 5k rpm's it completly stopped making power and just made noise. its a heads,cam, spray w/a nitrous tune on it and usually makes power all the way up to 6800 rpm, I put new plugs in it and a new fuel filter and nothin still fucked up. any ideas what this could be?

Blue2002SS

iTrader: (13)

sounds kinda like a problem a friend of mine is having here is his dyno sheet.

let us know if you figure out what is the problem

BlueSix

Valve float? What springs are you running and how od are they?

brokeassz28

Thats actually what i was thinking but there pretty new and there beehive springs.

BlueSix

What springs are they, and what are the specs of your cam?

jimmyblue

iTrader: (11)

Without wideband readings (or at least in-car O2s)
it's hard to say for sure, but this is how COT (cat
overtemp protetion mode) acts - big excess fuel
dump once the PCM thinks the cats may be in
trouble from too much heat.

Then again, I have found another way to get this,
a torque management related "shift hang". But you
would have had to be messing around your shift
tables, torque management profile etc. to get into
that situation.

But on an untuned vehicle, my money's on COT.

Drew98TA

I don't have as much done as you, but after i put the janzter TB on, i had the same thing happen. We put it on the dyno and found that it started pinging at 5k and lost 40rwhp from 5 to 6k. We added fuel up top and [Emeril]BAM![/Emeril] it was fixed. my .02

brokeassz28

I forgot to menson its got a th400 trans, w3800 stall converter and full reverse manual valve body. we got O2 simulators for the y pipe cause ther is no cats.