bossupsteve

I have a 98 camaro with a ls1 Just completed a head and cam job, my mod is R torquer2 cam bbk intake mainifold bbk 85 throttle body bbk under drive pully 799 heads 3200stall msd wires kN air intake L/T header no cats Took it in to get a tune he told me my power was down. I seen cars with the same cam make 400 . But my car is at 343.32 max power and max torque 327.32. What is holding my power back. Is it a tuning issue or something i could have done mechaniclly when I put the heads and the cam in?
https://ls1tech.com/forums/picture.p...ictureid=72643[IMG]
https://ls1tech.com/forums/picture.p...ictureid=72644
https://ls1tech.com/forums/picture.p...ictureid=72820

please viw my pictures above theses are the copies of my dyno sheets, i also have pictures of replaced part in my album!! thanks

TImmy_Jones

iTrader: (4)

There are so many things it COULD be....

Do you have dyno sheets? a/f ratio? Vac gauge hooked up to the car?

bossupsteve

i dont know what the a/f ratio was but i did post the dyno sheets, i did not have an air vac hooked up to it but i am pretty sure that is not the problem

bossupsteve

would 02 sensors put into different sports mess up with anything

poltergeist 02

iTrader: (65)

check fuel pressure first. also try changing the fuel filter. also check the voltage out. a bad alt or battery can cause these problems. other than that you may want to see if your lined up dot to dot. you could have installed the cam one tooth off.

bossupsteve

Just put a pic of the dot 2dot Tell me what u think

bossupsteve

Just put a pic of the dot 2 dot tell me what u think. Good looking.

88gtman

Unless you are missing some mods in you list, it sounds like you are still running stock exhaust. That could definitely be holding you back.

bossupsteve

My bad im runing L/T header

poltergeist 02

iTrader: (65)

dot to dot looks good to me. what size push rods did you go with? also what thickness head gaskets? i've seen this before where the wrong size caused major power loss.

bossupsteve

Tsp hardend 7.4 length and gm ls1 3.910 bors graphite set

poltergeist 02

iTrader: (65)

ok, did you have the heads milled, or have the block decked? also check to make sure that your tb is opening all the way when you put the peddle to the floor.

bossupsteve

No my heads r not milled or the bolck is not decked And i will check the tb out. Good looking

bossupsteve

So no body out there can help me with this

Tyler Z28

iTrader: (1)

did you do a carfax fax on your car? it could have 200K+ miles and just be a tired LS1 possibly dirty injectors on another thread they said it could be down 50-80RWHP because of that.

KevinR

Man, there's really is no telling what it could be just by reading your post. Is it throwing any codes?

Also, how good is your tuner? He should be able to see what's wrong with the car, and he would be the one that needs to answer your questions. If he can't, get another tuner.

thunderstruck507

iTrader: (18)

I agree, if the tuner can't give you some ideas what's wrong with the car sitting right in front of him he either doesn't know enough or doesn't want to help his customer much.

Either way, a new tuner would be a good idea.

poltergeist 02

iTrader: (65)

Did you ever check the tb for full throttle position?

bossupsteve

My ls1 has 130 miles It could be the tuner I dont know but this is the #2 tuner to mess with it. Pople say it can be a number of things but i dont c how. Did have some codes but when i took it to the 1 tune he took them off. Did not check the tb. Cuz he is not open. But im going up there And c whats up with my car its ben up there to long. Im going to put new injectors when i go to c the car. Thanks 4 all the help.

bayer-z28

iTrader: (14)

WB02's or sniffer for tuning? No not really. Only a slight delay.


What exhaust are you running besides LTs? What size TB? 85mm? I'm not seeing any irregularities in the AF graph, other than not being able to see the numbers. It IS nice and flat though. Could he have choked your timing back too much?