fern's Z

hey guys i have a question for everyone! i have a fbo camaro with a 5.7 bored over 40 with flat top pistons p/p heads,t/b and MAF housing and a ms4 cam with 7.500 push rods and ls7 lifters and a ls6 intake with stock injectors i took it to get dyno tuned and it clocked 349 rwhp and 346 rwtp now i think this cat either didnt dyno tune it and just did a street tune but i may be wrong as well. anyone with this same set up that can spool me up on some input is greatly appreciated i took it to the 1/8 mile track and ran 8.0 on street tires on hot/humid *** Texas weather!!

parks450

iTrader: (17)

The stock injectors might be killing ya....their prolly maxed out, might wana try some 36lbders

Z28/2002

iTrader: (27)

I highly doubt that the stock block is bored .040 over. If it is then start saving up for a new motor

blk/slvr02ss

iTrader: (21)

U Can only bore a 5.7 10 over and it seems right on rwhp if u dynoed it in the heat on a Mustang Dyno !

flintwrench69

iTrader: (11)

If its a stalled auto it will read low but even in the heat thats pretty low for that setup.

fern's Z

no its bored .40 over and its an ls1 resleeved for a .40 over bore trust me i had probs getting the right piston rings cuz no one believed it was .40 over i had to actually call seal power direct and the got me the right rings i needed!

yes it has a built 4l60 with a Circle D single disk 3600-3800 stall

i know dyno numbers dont mean anything but bragging rights in this game! but i wanna know if thats the avg rwhp were the car should be based on the set up i have taking in consideration on the drivetrain loss and everything in between and also in weather temp i believe or was expecting at least in the 400 hp range but i may be wrong

A.R. Shale Targa

iTrader: (2)

What casting heads and who did the work to them ?? Also most stock
injector (28.8) combos don't max out duty cycle till around 430 ish r.w.
I agree it does seem low even considering stalled auto and the heat.