280ZX (S130) Forums Dedicated to 79-83 ZCars

speed check

Old Apr 22, 2005 | 08:53 PM
  #1  
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speed check

Full boar and still wanting more
Old Apr 23, 2005 | 02:34 PM
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i though i would have some more fun .....so if i put it in N rev it to about 5500rpm and drop it to #1 IT WILL BRUN OUT very nicely shifting from #1 to #2 at about 5500rmp and she grabs ground like me grabing **** on sunday
Old Apr 24, 2005 | 05:23 AM
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swap the speedo to a 130mph unit. That's what I did when I pinned the speedo.
Old Apr 24, 2005 | 09:58 AM
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I'd be careful doing those neutral drops, I had a friend who had a minivan and used to do neutral drops all the time, and he ended up shattering/blowing his transmission.
Old Apr 24, 2005 | 10:50 AM
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yes yes yes that what i want to have happen........ i hate my auto
Old Apr 24, 2005 | 11:01 AM
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never mind then...drop away....if you want to shatter it, try putting it into park while rolling.
Old Apr 24, 2005 | 12:34 PM
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never thought we'd have a topic on HOW to kill your tranz....0o``
Old Apr 24, 2005 | 12:41 PM
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Rear on an 81 auto (3.54) 3rd gear in an auto is 1:1 ratio
4600rpm = 96mph if youre running a correct factory tire size. Those 3-speed autos do not have a direct drive so there is always some slipping. So you're actually going anywhere from 90-93mph but I'm not sure exactly what speed.
Old Apr 24, 2005 | 02:56 PM
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Originally Posted by Fast240Z
never mind then...drop away....if you want to shatter it, try putting it into park while rolling.
this will do more than screw up your tranny...we were on our way back from Fargo which is 11 hours away from here, my brother was driving and we missed our turn...my dad got pissed of at him and stuck her in park at about 30 k an hour..stoped, stalled, couldnt get it started, went out looked at the engine and the cam was broke in half...
Old Apr 24, 2005 | 03:46 PM
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holy ****! that's awesome!
Old Apr 24, 2005 | 03:46 PM
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dammmmmmmmmmmmmmmmmmmmmmm
Old Apr 25, 2005 | 01:36 AM
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so...........when did your dad wake up? cos i wouldda socked him something awofull.. ^,^``
Old Apr 25, 2005 | 07:41 AM
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1990 sentra

I had a 1990 sentra that i used to drop into gear all the time and i cracked my cam in hafe also, my mechanic at the time told me that "thats somthings NASCAR does not 4 door nissians" any who 3 grand later i sold the car to some old guy and bought a Z
Old Apr 25, 2005 | 03:00 PM
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I neutral-bombed my '88 Pontiac Grand Am 4-door rally car all the time. Yes, you read that right ... RALLY CAR. The trans died after catching 71/2 feet of air off an abandoned industrial lot handicap ramp. As did the struts. And frame. And every other weak part on the car (everything, it's GM ...).

Don't know why I chipped that in ... just food for thought.
Old Apr 25, 2005 | 05:06 PM
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this relates more to the last post . .
i got about 7 or 8 feet of air in my old bajabug on a fire trail. . . .and the only damage was a 12 sub that ripped from its box on impact and the steering was a little off due to landing at an angle. hahahahaha. man, i had almost forgot about that one.
Old Apr 25, 2005 | 06:46 PM
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if you want to see your actual speed you need to find a 130mph speedo.

...oh look, someone has one for sale in the Marketplace!
Old Apr 25, 2005 | 08:34 PM
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thanks bleach
Old Apr 26, 2005 | 09:21 PM
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Or what you could do (and what I've done) is remove the reset pin on the speedo face. The needle continues around the face like a clock. I've scared friends that way ... they look over and see the speedo pointing straight down ...
Old Apr 27, 2005 | 06:17 AM
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Apollo, I was looking at the picture in your sig and something looks a little weird with it. How is it possible that you are going almost 120mph at only 3000rpm? Im thinking you really have an 85mph speedo with a 130mph face on it. That would put you at about 78mph right??? You almost had me fooled for a second.
Old Apr 27, 2005 | 07:42 AM
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Ya, I thought about that for only a second but didn't really care to look closer. You could not reach those speeds at that rpm even with your 82 5-speed (tallest 5th gear) and a 3.3 rearend. (tallest diff)

You would only be going 92 with the highest geared combo that the Z ever had available. Maybe that is killometers per hour! hahaha!
Old Apr 27, 2005 | 09:05 AM
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funny, I was thinking the same thing... Maybe an 80MPH speedo... nonetheless, VERY COOL job on the white faces.
Old Apr 27, 2005 | 10:14 AM
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You guys don't realize, Apollo put a T56 into his car and can pull 130mph in 6th gear at 3000rpm.

Good job on the gauges dude. I told you it was easier to pull the cluster than all those other posers said it was!
Old Apr 27, 2005 | 10:35 AM
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I think his tachometer is stuck at 3100rpm! he broke it when installing the white face guages
Old Apr 28, 2005 | 01:51 AM
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hahahaha, oh yea. i was waiting to see who would spot that 1st. well after winning the lotto i thought that maybe the Z could use a little more umph, so i had a LS1 tossed in with a 6 speed tranny. i wanted it to have just a little more umph . . . .just a little
Old Apr 28, 2005 | 02:02 AM
  #25  
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no really, it is the 80 mph speedo, jus that the 130 i had lined up wasnt available once i got ready to do the swap, so i went ahead and put the face on anyways, i have more . i made a few sets just in case i botched any of them up. i will swap for a 130 once i can locate one that works with my cruise control.

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