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head work
Ok my head is down in texas at GTP i should have it back soon. now i have new better top end i will be able to run 9,000 rpms. i am not of course maybe only about 7500. anyways now i have port polish and all of that on the head plus the j-spec cam shafts, act clutch and lightend fly, what should i do next, i was thinking an ignitions system. what is available out there for us? unless i should do something else???
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Yeah...
Well if you're intent on spinning at 9k, I'd recommend new pistons, rods, valvetrain (springs, retainers, blah blah), and a lightened or all new custom crankshaft. I too would like to see a streetable FS motor hit 9 grand. |
no, i said now my valvetrain could handle 9,000 i am not running it i may only run 7500 later!!! listen to the words that are comin out my mouth!!!
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Why don't you install an ignition and a Tech III stand alone. There's plenty of ft-lbs trapped in the stock POS ECU.
Sure the stroke is long and the rods short, but it's low compression ratio helps offset that at high rpm. I say the bottom end is good to 8K, with head work and cams that'll flow. I base that on the max acceptable piston velocity of cast pistons. You just need to properly tune for it, which the stock ECU clearly isn't. I say go for it. By the time your lower end goes, the yards will be full of FS motors. Pseudo's right though; short, flat top, low compression pistons and longer rods would really help, but you'll still need a ECU first. |
not as low as a QR25 at least
the FS's rod ratio is ~1.47 Originally posted by PseudoRealityX Id guess the first thing to go would be rod bolts... And then one would go through the block. The FS has a ridiculously low rod ratio for a modern 4 cylinder. Its like 1.42. |
Originally posted by zeus Why don't you install an ignition and a Tech III stand alone. There's plenty of ft-lbs trapped in the stock POS ECU. Sure the stroke is long and the rods short, but it's low compression ratio helps offset that at high rpm. I say the bottom end is good to 8K, with head work and cams that'll flow. I base that on the max acceptable piston velocity of cast pistons. You just need to properly tune for it, which the stock ECU clearly isn't. I say go for it. By the time your lower end goes, the yards will be full of FS motors. Pseudo's right though; short, flat top, low compression pistons and longer rods would really help, but you'll still need a ECU first. i have never heard of it and am not fam with it. Who, what, where, why, and HOW MUCH :D |
bump:)
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