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need help with 1.7 cobra rockers?
These are advertised pretty cheap 149-179$, will they fit on my stock stang? are they pedestal mount? if so will i see a gain, im looking for a tenth or at least 2 mph, this will be after i ditch my stock h-pipe for a o-r mac pipe.
thnx.. ------------------ 90 lx coupe: Mac cold air fenderwell, accel supercoil,advncd ignition,3-core radiatr, FMS alum D/S, Black magic fan, 3.27grs, 3chbr flows. Best time: 13.9116(on 225/60/15 firehawks) Best mph: 98.17 Best 60': 1.9607 next mods: subframes, mac h-pipe |
not sure about the improvements with the rockers cause i havent tested mine yet but i've heard between 1-2 tenths, but it will be even better with an h-pipe too, why dont you use that money to put some gears in that thing, 3.73's will easily give you 2 tenths, looks like traction isnt much of a problem if you can hit a 1.9 60' on 225's, i wish i could do that
------------------ 88 Notchback 5.0, 3.73's, Ported E7's, Explorer int. w/ ported lower, pulleys, Crane 1.7's, BBK headers, off-road H-pipe, flowmasters, subframe connectors, 65mm TB, shift kit, March ram air kit, motorsport wires, MSD coil, upper and lower control arms, 155lph fuel pump, cheap 2800 stall, Crane Adj.FPR, best time- 13.99@99.75, not yet tested times after rockers,intake or ported heads |
The 1.9 i did when my car gave a slight bog, and it was fun ford shootout, in which they spray the track with vht, they do at every shootout, regarless i do consistent 2.00's no swaybar, but as for the 3.73's a friend of mine actually slowed down with 3.73's i dont know why? but im sure traction will become a problem when i do change grs thinking 4.10's now. thnx for the info...
------------------ 90 lx coupe: Mac cold air fenderwell, accel supercoil,advncd ignition,3-core radiatr, FMS alum D/S, Black magic fan, 3.27grs, 3chbr flows. Best time: 13.9116(on 225/60/15 firehawks) Best mph: 98.17 Best 60': 1.9607 next mods: subframes, mac h-pipe |
I'm not sure if the Cobra 1.7s fit under stock valve covers but my Crane 1.7s do - that's why I chose them. Also they were pedestal mount.
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cobra rockers are the same as the cranes.. doubt you'd pick up .2 though.. pulleys would be a better choice to knock time off.. even just the water pump and crank ones..
------------------ 84 convt,'95 302,AFR's, performer 3.55's, underdrives stock shorties stock cam, 1.7's 14.06@100.21, 255RWHP on a hot day 265 on the mph/weight chart |
You might gain some top end but the roller rockers have it all over the stockers. They are also much cheaper than any 1.6 roller.
I had to go through three sets of Cranes before I found a good set of pedistals and even then I had to buy the replacement set for another $15. The pedistals I got with all my rockers were machined crooked so the tip didn't set square on the valve tip. |
jimberg, his car was (stock)motor, and 273's, the 373s took him to 15.2 from 14.8, but maybe he just wasnt used to them.
he eventually put a cam and a holley intake on, and went to 13.6 in a lx hatch, the grs worked much better with some more topend power i guess. Yea its funny that guy mention the pullies, my friend just told me today he has a water pump and crank pulley laying around he will give me, and i agree i will probaly see a bigger gain from these instead of the rockers....thnx ------------------ 90 lx coupe: Mac cold air fenderwell, accel supercoil,advncd ignition,3-core radiatr, FMS alum D/S, Black magic fan, 3.27grs, 3chbr flows. Best time: 13.9116(on 225/60/15 firehawks) Best mph: 98.17 Best 60': 1.9607 next mods: subframes, mac h-pipe |
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