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Discussion Starter #1
Can anybody tell me at what rpm does the rev limiter cut off power. This is for a 98 Duratec. I'm getting a chip soon and the speed limiter will be removed. So I wanted to know when the power will get cut off again in 4th gear (OD).

Plus can anybody tell me if a gen 3 SHO cluster will be a plug and play for my gen 3 SE, or will there have to be some calibrating of some sort??? Also, does the SHO speedo go too 140mph?? This will come in handy when the speed limiter gets removed
 

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I'm not sure what the rev limiter is on the 'tec, but I don't think you'll be hitting the rev limiter in 4th. I hit 135mph+ in 3rd gear and I wasn't even at 6K yet.

As far as the clusters go, if it fits, it works--that is the rule of thumb for all Taurus Gens. So, yes, a Gen 3 SHO cluster will work just fine in any Gen 3 Taurus, and the readout is 150mph.
No calibration is necessary.
 

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Discussion Starter #3
Sweet

Damon, do you still got the SHO cluster you and BoB were trying to put in?? If so, would you like to get rid of it and for how much??? If you live close enough by and you want to stop down next weekend at Bobs' I'll be their and can pay and pick up than.
 

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Yeah, but the gearing is different on the SHO's, sixfo. I'm pretty sure you guys top out a lot higher.

I have a 97 tec with no speed limiter and I've buried my 120 speedo. IIRC, the needle was pushing past 120 so far that it was hitting the bottom of the guage cluster and the engine was at about 4k-4500rpm in 4th gear. I had a video tape of me topping it out, but I lost it.
 

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You're right... I forgot about the different gearing. So you were going, what, about 130 and you still had a little more to go? I think that is fast enough.
 
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The SHO cluser was mine, for Anonda's car. I can get another one though, if you want one Dylan.
 

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Not sure on the actual speed, because I doubt the speedo was designed to go that high, so I'm not confident in the high speed calibration. I think it's plenty fast, too. I don't really want my engine spinning at 6500rpms at the top of 4th. That's just asking for your engine or tranny for that matter to blow up.

You guys have to remember the ineffieciency of an automatic transmission. Because of the torque converter, there's always going to be a little of slip between the flywheel and the gears, and that slipping will be creating a bit of heat. So, the faster you go, the hotter the fluid gets, especially in over drive.

Another thing is you have to make sure your tires are rated for high speeds. Before I did any crazy suicide runs I made sure I had a tranny fluid cooler installed and H rated tires.

I'm not saying your car will blow up on your first run, but it's a good idea to make it safe before you go out.
 

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Discussion Starter #8
I'd be inerested in the cluster Bob.

I'm sure she wont miss it Bob. I don't think she wants to be part of the 120mph club


Will the cluster be a simply swap, or does it take some time??
 
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It's just a simple swap in a Gen 3. Gen 4 is a little different, but I'm working on that.


I'll pick one up for you this week.
 

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Originally posted by mikehawk@Mar 2 2004, 06:27 PM
Where are you getting all these SHO clusters?

SHOs are few and far between at the junkyard by my house.
Bob is not far from SHO heaven. Old SHOs are made young again, fast SHOs are made faster, and those that have given their all are stripped down so that they might help some other SHO live to see another day. I'll be making my second visit up there shortly.
 

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Originally posted by mikehawk@Mar 2 2004, 05:22 PM
You guys have to remember the ineffieciency of an automatic transmission.  Because of the torque converter, there's always going to be a little of slip between the flywheel and the gears, and that slipping will be creating a bit of heat.  So, the faster you go, the hotter the fluid gets, especially in over drive.
The Taurus/Sable automatic overdrive transmissions all have lockup torque converters, so once the transmission has completed its shift cycle, and the car's in OD, the torque converter locks up; there's no slippage, so the heat generated is all from the transmission, not the converter.

Just for what its worth, one time I "tested" the power of my 1987 Sable. I opened it up on a long open stretch, and the engine ran out of power at a bit past 4200 R/M in OD. Of course, that poor 85 MPH speedo was long since buried, as well. As close as I could figure, calculating vehicle speed from R/M in OD, the Sable was Vulcaning along at a buck and a quarter.
 

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The T/C locks up in third gear. The rpms will drop about 500 IIRC.
 

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Originally posted by Sablewagon+Mar 2 2004, 11:11 PM-->QUOTE (Sablewagon @ Mar 2 2004, 11:11 PM)
<!--QuoteBegin-mikehawk
@Mar 2 2004, 05:22 PM

You guys have to remember the ineffieciency of an automatic transmission.  Because of the torque converter, there's always going to be a little of slip between the flywheel and the gears, and that slipping will be creating a bit of heat.  So, the faster you go, the hotter the fluid gets, especially in over drive.
The Taurus/Sable automatic overdrive transmissions all have lockup torque converters, so once the transmission has completed its shift cycle, and the car's in OD, the torque converter locks up; there's no slippage, so the heat generated is all from the transmission, not the converter.

Just for what its worth, one time I "tested" the power of my 1987 Sable. I opened it up on a long open stretch, and the engine ran out of power at a bit past 4200 R/M in OD. Of course, that poor 85 MPH speedo was long since buried, as well. As close as I could figure, calculating vehicle speed from R/M in OD, the Sable was Vulcaning along at a buck and a quarter. [/b]
I don't know about the old school taurus trannies, but my TC doesn't lock up and stay locked up. When coasting or when the throttle is almost completely closed, the rpms are about 500 or so lower than if I give it a little gas, this is when it's locked. Once I do give it a little gas, the rpms jump(unlocking it), but it's not a downshift. So if you were at WOT towards the top of 4th gear trying to hit top speed, the TC would not be locked up. And, the extra slipping would create extra heat.
 

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Originally posted by Sablewagon+Mar 2 2004, 11:11 PM-->
<!--QuoteBegin-mikehawk
@Mar 2 2004, 05:22 PM

You guys have to remember the ineffieciency of an automatic transmission. Because of the torque converter, there's always going to be a little of slip between the flywheel and the gears, and that slipping will be creating a bit of heat. So, the faster you go, the hotter the fluid gets, especially in over drive.
The Taurus/Sable automatic overdrive transmissions all have lockup torque converters, so once the transmission has completed its shift cycle, and the car's in OD, the torque converter locks up; there's no slippage, so the heat generated is all from the transmission, not the converter.

Just for what its worth, one time I "tested" the power of my 1987 Sable. I opened it up on a long open stretch, and the engine ran out of power at a bit past 4200 R/M in OD. Of course, that poor 85 MPH speedo was long since buried, as well. As close as I could figure, calculating vehicle speed from R/M in OD, the Sable was Vulcaning along at a buck and a quarter. [/b]
I don't know about the old school taurus trannies, but my TC doesn't lock up and stay locked up. When coasting or when the throttle is almost completely closed, the rpms are about 500 or so lower than if I give it a little gas, this is when it's locked. Once I do give it a little gas, the rpms jump(unlocking it), but it's not a downshift. So if you were at WOT towards the top of 4th gear trying to hit top speed, the TC would not be locked up. And, the extra slipping would create extra heat.
[/b]
The TC will be locked up at WOT over about 70 mph in third gear & up in the '96-up Taurus/Sable, and possibly/likely others too(AX4S & AXOD-E equipped). You can test this by letting off WOT slightly at high speed & watching the tach jump up as the converter unlocks.

Rob
 
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