no there arent any loops at all the power is climbing pretty good and then falls right off. I am going to have my pcm redone to richen it up a little and check adjustment of the rockers. Is there a way to tell the difference between stock and aftermarket springs with them installed? The only other thing that i can think of that would hurt my top end is my exhaust, i think the y pipe is a little restrictive so i am also ordering 2 cutouts to put after the headers

 

It sounds like someone got off the gas too soon to be honest.

No AFR change can cause a 100hp dip. When you do send back the computer make sure you include the AFR chart so Bryan can hook you up.

 

yeah i am going to send all the graphs with it, but i was driving it and did not let off until 6400 on either pull. I was driving it home form school today and got in it with the windows down and it seems like it might be missing pas 6000 so i guess i am going to pull the valve springs and see what they are i dont really know what else to do?

 

Did I meet you at Stanton the other week, Sunday April 11th? I was in line in front of you in the lanes. If it was you, weren't you trapping like 110+ mph? If so, your HP is most likely higher than what the dyno is showing.

Dan

 

Are you running the stock ignition? If I were to build up an engine, one of the first things i would do is upgrade the ignition, it definitly could use a stronger spark.

 

yeah i met you up there that weekend, she was running decent then but had traction problems in second. What should i do as far as upgrading my ignition? Full MSD set up or is a coil enough for the mods i have. I think i am going to trying changing my plugs and gapping them a little less, otherwise i dont know because the opti was recently replaced along with taylor wires.

 

I'm doubting that adding an MSD box is going to help. An aftermarket coil wont be any better than stock 96-97 single connector style but could help marginally with the 93-95. I didnt look at your sig to see what year you have. Regardless there's an underlying issue causing your power to drop of radically. Since it happens at 6k+, valvetrain would be first option. Check what springs you have and go from there.

 

what is the best way to tell what springs are on it? Could it be a weak fuel pump?

 

I hate to interject but.. i thought the hotcam was 218/228 @ .050", .525" intake and .525" exhaust and 114 LSA for the lt1.. the LS1 is 219/228...

Cant really find the LSA specs.. but I always thought it was 114....could be wrong.

--Troy

 

You have it right, except it is on a 112 LSA. For the LT1: 218/228 0.525"/0.525" with 1.6 rockers 112 LSA

Dan