i remember my friends taurus sho having the cut off at about 10000rpm. no one believes me or am i wrong?
it had a 11000rpm tach. and the red line was at about 8900. I have problems believing it now, but i also remember being surprised at the time, when I saw it a few times actually cuting off at about 10000rpm. I don't remember the year of the SHO, around 1990 or so, need to know my memories are not way off.
the 1989-1995 Taurus SHO had a 7400rpm redline from the factory (it was supposed to be 7200, but my SHO and those of my friends are all 7400). i cant remember what the actual gauge goes up to, but i know for a fact that a stock SHO wont spin past 7400, or at the very most 7500rpm. the highest ive ever heard of an SHO spinning was high 8000s, but that was a fully built SHO with forged pistons, new cam, etc. as far as a factory setup goes, the 8000s are out of the question.
I own a 89 SHO and the tach goes to 9 grand and the rev limiter is set at 7800 rpm. The engine is made to do 10000 or 11000 but ford and yamaha put a rev limiter so you don't break it. 1989 was the first year for the SHO, I have a 89 and my wife has a 93. I love'em I've mine 9years and she's had her's 3 years.
thats true... even after the Gen2 SHOs ceased production, ford still used the Yamaha/Ford V6 from the SHO to break in their engine dynos. one time, the rev limiter broke on one of the SHO engines while it was performing those duties. the engine spun up to around 15k under the load of the dyno and ran like that for quite a while before anyone noticed. the engine sustained no damage. that said, a factory SHO engine cant spin nearly that fast. their are fuel limitations that prevent the engine from spinning that high. in addition to the safeguards that the engine has, the fuel system simply doesnt have the capacity to supply that much fuel. the injectors, regulator and fuel pump would all have to be changed for high rpms to be reached in a street-driven SHO.
most all fuel injected cars and trucks have a rev limiter when in park or neutral
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