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05-28-2016, 10:38 AM | #21 |
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Re: 51 merc needs a little speed up
if its a stock engine it does not get all its horse power till the engine turns 3600 rpm, so 2500 rpm wont hurt , what kills these flat heads is over heating, so keep your eyes on the temp gauge
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05-28-2016, 10:51 AM | #22 | |
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Re: 51 merc needs a little speed up
Quote:
John |
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05-29-2016, 08:12 AM | #23 | |
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Re: 51 merc needs a little speed up
Quote:
Now here's a question that hasn't been asked: Are you sure your OD is working? |
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05-29-2016, 09:02 AM | #24 |
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Re: 51 merc needs a little speed up
I think some of youse guys should buy JWL"s book before you sttart giving advice. He gives Dozens of dyno results for stock and modified engines. And stock engine runs out of steam long before 3600 RPM. But the factory never read his book.
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05-29-2016, 09:33 AM | #25 |
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Re: 51 merc needs a little speed up
With the stock 4.27 axle and 0.7 overdrive I would not be afraid of running the engine up to get to go 75 mph. The condition and function of your brakes, suspension, and driver reaction time are however totally your discretion. I frequently run my 53 Ford sedan 70+ with confidence.
As others have said, are you sure the overdrive is working? If so you have no issues with engine revs. If not, your motor will be sounding busy (but may still be fine). I would not re-gear the rear axle. Lugging the engine will too tall a gear is much worse than spinning a few more rpm. |
05-29-2016, 10:08 AM | #26 |
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Re: 51 merc needs a little speed up
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05-29-2016, 10:26 AM | #27 |
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Re: 51 merc needs a little speed up
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05-29-2016, 04:50 PM | #28 |
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Re: 51 merc needs a little speed up
Yeah, It was fun, wasn't it? still had a bit left, not a lot but it was still pulling, but was running out of straight road. took it and the coupe to the O'rilley's car show in Palmer Sat. the coupe won 1st peoples choice and the managers choice. really surprised me.---Jim
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05-29-2016, 07:49 PM | #29 |
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Re: 51 merc needs a little speed up
Sounds like they're just jealous..
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05-29-2016, 11:07 PM | #30 |
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Re: 51 merc needs a little speed up
Their both very nice cars, but that Merc when it gets up to speed look out, and with the weight it's got a nice ride too! Bill
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05-30-2016, 12:12 AM | #31 |
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Re: 51 merc needs a little speed up
Measure the height of your tire.
Then play around with the variables. http://www.csgnetwork.com/multirpmcalc.html
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05-30-2016, 11:10 AM | #32 |
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Re: 51 merc needs a little speed up
OldFord2 has the proper attitude, a 51 Mercury sports 61 year old technology (steering, brakes, etc.) trying to keep up with today's traffic is insane (actually most driver's today are insane). You cannot handle, or stop like they can, let them go around! JMHO LouB.
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05-30-2016, 11:39 AM | #33 | |
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Re: 51 merc needs a little speed up
Quote:
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05-30-2016, 01:24 PM | #34 |
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Re: 51 merc needs a little speed up
ol"ron, kinda sharp with your reply, I know all about rpm and horse power and torque curves, what I was saying is he can turn the engine to 2500 rpm and his engine will be fine
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05-31-2016, 07:57 AM | #35 | |
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Re: 51 merc needs a little speed up
Quote:
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05-31-2016, 10:44 AM | #36 |
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Re: 51 merc needs a little speed up
I should have said a 51 mercury sports 65 year old technology....sorry.
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05-31-2016, 11:31 AM | #37 |
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Re: 51 merc needs a little speed up
getting the finger from people passing you in your old car gives you a sense of what the Amish must put up with in their horse draw wagons. I agree with the advice to just give'm back a thumbs up or the peace sign.
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