Roller rocker ratio?

HiFlow5 0 · 06-15-2003, 06:16 PM

Currently I'm running FMS 1.6 rockers and things are running pretty well. I have been toying with the idea of swapping to 1.7's for a lil more lift for upper rpm power. Would switching to 1.7 be benifitial with my mods and worth the trouble? Also will pistion to valve clearence be an issue with the E-cam?

Thanks, Craig.

Coupe50h · 06-15-2003, 11:32 PM

I been running the 1.7 crane/cobra rr's with an e-cam for about 3 months now, no problems, i dont know how my stock springs are likeing the .528 lift, but so far all is good.

When my motor was stock h/c/i i went 13.4 99 mph with headers and h-pipe, e.t. streets, threw the 1.7's on and went 13.27 101.60 mph, my car loved the extra lift.

06-15-2003, 06:16 PM	#1
HiFlow5 0 Registered Member Join Date: Mar 2000 Location: Springfield, Ma, usa Posts: 706	Roller rocker ratio? Currently I'm running FMS 1.6 rockers and things are running pretty well. I have been toying with the idea of swapping to 1.7's for a lil more lift for upper rpm power. Would switching to 1.7 be benifitial with my mods and worth the trouble? Also will pistion to valve clearence be an issue with the E-cam? Thanks, Craig. __________________ NewEngland Auto www.baystategearheads.com -91 Mustang Coupe, ex 4cyl (sold) -99 F150, 3" lift, 35" Procomps, Magnaflow exhaust

06-15-2003, 11:32 PM	#2
Coupe50h Registered Member Join Date: Aug 2002 Location: SanAntonio, Tx Posts: 957	I been running the 1.7 crane/cobra rr's with an e-cam for about 3 months now, no problems, i dont know how my stock springs are likeing the .528 lift, but so far all is good. When my motor was stock h/c/i i went 13.4 99 mph with headers and h-pipe, e.t. streets, threw the 1.7's on and went 13.27 101.60 mph, my car loved the extra lift. __________________ X-Texas highway patrol ssp 1990 coupe - exploder Gt-40 iron heads, Explorer intake, 19 lber's. E-cam. crane 1.7 rollers. 190fp. 75mm maf. 65mm tb, tubular subframe connectors, mac cai, Asp crank pulley, T-5, king cobra clutch, flowtech 1-5/8 unequals, mac X-pipe Frpp driveshaft, lakewood Lca's. race weight 3,160 12.69 @ 107.35, 1.71 60' 26x8.5 drag's 3.90 gear 13.20 @ 106.91 - 235/60/15 firestones 2.3 60' 3.27 gear

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