lt1 stock redline
#21
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When my m6 was stock it ran best shifting around 6000 acording to the tach, but we all know they read 100-200rpm high. On a scanner it was really turning 5750-5800. spinning a stock lt-1 higher than that is just more wear and tear on the motor!
Last edited by kinglt-1; 07-18-2008 at 10:43 AM.
#26
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Not convinced...shift your car at ~4500 rpm for every gear and see what happens.
#28
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Stock valve train numbers.. Did a couple of pulls a year ago prior to cam install, '94 A4 with CIA and CAT back only, original plugs, wires (72K miles), stock cam , springs, rockers, and exhaust manifold. Peak torque 278 at 4800 held flat till 5000 and then droped off slowly, peak HP 241 at 4000 flat to 4400 and then dropped off drastically to 190 at 5400. Have since added tune, new plugs, wires, a mild street cam, 1.6 RR's , springs and 3.42 rear. Waiting for headers and 2500 stall installation prior to next dyno pull. Hoping to get those crappy numbers up to something acceptable. IMO with an stock engine and valve train there is llittle value to up rev limiter beyond 5700.
peak torque was was hard to tell because it was pretty much level from 2000 rpm to 4500 RPM
#29
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I'll have to change my earlier statement i made, obviously it was a fuel issue, but after i installed a new pump & gears (4.11s), then i got to playing around with fuel pressure, i can now pull it to 6-6100 on the tach & its pulling there, i'm sure i can go higher, but don't want to push it, so i will say now its doable, 55-5600 (on the tach) now is just too low a shift point for the M6.