madmike9396

iTrader: (29)

Just as the title states will a good set of roller rockers free up some hp on my mostly stock ls1 ?

Thanks 2 anyone with info

bww3588

iTrader: (49)

no......the only thing you will gain is less friction and more stability in the valvetrain. but before anyone chimes in and debates me, the friction you lose will not gain you anything more than maybe 1 hp if your lucky.

Anthony Williams

iTrader: (3)

Incresed rocker ratio (going from a 1.7 to a 1.8 ratio raises your net valve lift) will net some hp. But just installing rollers will usally give you more high rpm stability, and it may inturn quiet down your valvetrain at all rpms.

madmike9396

iTrader: (29)

cool thanks guys so there is really no need to waist my $

bww3588

iTrader: (49)

you might see another 5hp from increasing lift, but your not increasing duration, only speeding the valves up in turn losing the vavletrain stability you gained in the first place.

1.8 rockers are worthless unless your cam is ground for them. period.

bww3588

iTrader: (49)

no, much better mods out there for the money that will actually net you something.

if i stole your car, didnt tell you what i was doing with it and installed 1.8 RR's and gave it back to you, you wouldnt even know something was done.

madmike9396

iTrader: (29)

LMAO cool would it help if i had a after market cam ?

slo_lt1

iTrader: (2)

yes....

ULTIMATEORANGESS

iTrader: (4)

id go with a cam over RRs. thats if youre a complete bolton car.

madmike9396

iTrader: (29)

well i have to get headers but i dont really want to because i like the way my car sounds now i have the Slp Lm exhaust and i know if i get headers i will have to change my exhaust because it will be to loud

bww3588

iTrader: (49)

all aftermarket cams that i know of are ground for 1.7 rockers. if you get a custom cam ground for 1.8 rockers, then you will see a gain from the rockers. it will have the ramp rate and duration ground into it to take advantage of the added lift without speeding the valves up a lot.

bww3588

iTrader: (49)

i had the SLP LM1 on my car with stock manifolds and y, and liked it, but when i changed to LT's and true duals, the LM went bye bye and never looked back.

madmike9396

iTrader: (29)

cool are u running a muffler on ur true duals ?

bww3588

iTrader: (49)

before i built the engine, i had TSP TD's with dynomax bullets dumped. sounded really good, but it was loud as hell.

then i built the engine and installed a moser 9 inch and the TD's the way they were routed, wouldnt clear the larger rear end, so i put Moroso spiral flows right off the collectors, and it sounded good as well, but hella loud.

my next setup consists of the same x pipe i had with the TSP TD's, but with flowmaster 40 series delta force race mufflers. still going to be loud, but should sound great.

i like loud incase you havent noticed...