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80 - 82 mph at 3500rpm - W58 5spd  Rating:  Rating
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 Posted: 04-24-2013 06:31 am
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StevenD57
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I finally have my digital gauge package working and a small fuel supply issue ironed out so I have been driving my JH with the Toyota W58 around in North Scottsdale AZ to North Phoenix via the 101 freeway at highway cruising speeds. I have been able to consistently observe some very nice relaxed engine rpms at some elevated highway speeds in comparison to the stock JH four speed transmission. The 101 freeway here in north Phoenix and north Scottsdale is a gently rolling terrain. My car still has the stock 13inch original wheels with some no-name P185/70/R13 tires and the original 3.73 rear diff. With that setup I am seeing the following engine speeds verses highway speeds in fifth gear:

74 - 75 mph  3300RPM

78 - 79 mph  3400rpm

80 - 82 mph  3500rpm

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 Posted: 04-24-2013 11:20 am
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jcdean
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Jealous

Congrats on the swap and hoping you get many purring along miles out of it.

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 Posted: 04-26-2013 05:22 pm
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Jensen Healey
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Very cool Steven! How is the spacing of 1st through 4th?
Kurt

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 Posted: 04-26-2013 05:36 pm
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StevenD57
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The lower gear ratios seem to work just fine in this application. Here are the various gear ratios as a comparison:

.................... 1st ....... 2nd ... 3rd .... 4th ..... 5th
Toyota W58......3.285... 1.894.. 1.275.. 1.00 ... 0.783
Ford T9 .......... 3.36 .... 1.81 .. 1.26 ... 1.00 ... 0.80
Stock JH 4spd . .3.11 ... 1.99 ... 1.29 ... 1.00

Last edited on 04-26-2013 05:38 pm by StevenD57

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 Posted: 04-28-2013 03:46 pm
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Dakota123
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Tell us more about the digital gauges? Conversions to the originals or something else? Sourced from where?

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 Posted: 04-28-2013 04:20 pm
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StevenD57
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I have digital gauges (tach, speedo, and some others) as a side effect of running the Megasquirt EFI & crank-fired ignition. There is an Android applet called Shadow Dash MS that runs on any Android phone or tablet. Shadow Dash MS pulls data from the Megasquirt ECU (and the internal GPS of the tablet or phone in the case of the speedometer gauge) to display on real time digital gauges. The Android tablet or phone has to support bluetooth as there is a serial to bluetooth adapter that plugs onto the DB9 port of the Megasquirt ECU.

So I have a 10inch tablet mounted in my Jensen-Healey displaying the Shadow Dash MS output.

Look at this youtube video for an example of this same sort of setup running:

Shadow Dash MS Android app in 1968 Chevelle

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 Posted: 04-29-2013 09:54 pm
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Dakota123
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Interesting.  Thanks.

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