1.7rr h.p. gains? whats the best

[2muchtime]

what are the h.p. gains on an otherwise stock 94-95 mustang if you were to change the roller rockers to a 1.7 ratio??

who makes the best / worst 1.7RR?? (opinion)

specs on valve lift??

 

[4Jenna]

spend your money elsewhere on a stock car...gains would be minimal.
Look into gears

 

[raven69david]

spend your money elsewhere on a stock car...gains would be minimal.
Look into gears

Yep!

Buy gears, pulleys or CAI. They would do more than the 1.7 RR's on your motor.

 

[GTPhreak]

0-2hp

 

[2muchtime]

thanks guys but dont need help building h.p. for my car..
it was a conversation i had with someone on their car about changing the valve lift, h.p., specs..with 1.7RR on a stock motor..he has already done the swap and swears the car is faster and way more responsive..im just trying to see if he really has gained anything..

is that a guesstimate 0-2 h.p.??

 

[jasonlee0704]

Nope, either 5.0 Mustang or MM&FF did a dyno test for 1.7 rockers and the gain was exactly that over 1.6s - very little change.

 

[greg94080]

does this also hold true if you were to swap the heads out to gt40 irons as well?