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 Raider 87 shifting to 5th gear doesn't change RPM
#983163
01/30/10 03:35 AM
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Joined: Jan 2010
Posts: 15
OP
Need a Spot
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Hi
My name is Ricardo, i recently acquired a 1987 Dodge Raider, 4 cylinders, 2.6 Motor, 5 speed manual transmission. The car is all ok, but i noticed when shifting from 4th speed to 5th the RPM doesn't get lowered. I can tell this from the noise of the motor reving up when i shifth to 5th, its like if 5th gear is just another 4th. Last day i drove another Raider of the same specs of mine, and i noticed the gear shifting, though it was a little change, it was noticeable. I just searched the forum but i got entries on issues on automatic transmissions (overdrives) I'm quite unexperienced on this stuff, and i hope you guys could give me some advice, i like my Raider very much but running at 50 mph with the RPM hitting 3600 its tiring and no-fuel-efficient.
Thank you in advance.
Last edited by ricardus; 01/30/10 03:36 AM.
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Re: Raider 87 shifting to 5th gear doesn't change RPM
[Re: ricardus]
#983164
01/30/10 04:31 AM
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Joined: Jan 2000
Posts: 16,227
Web Wheeler
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Hi
My name is Ricardo, i recently acquired a 1987 Dodge Raider, 4 cylinders, 2.6 Motor, 5 speed manual transmission. The car is all ok, but i noticed when shifting from 4th speed to 5th the RPM doesn't get lowered. I can tell this from the noise of the motor reving up when i shifth to 5th, its like if 5th gear is just another 4th. Last day i drove another Raider of the same specs of mine, and i noticed the gear shifting, though it was a little change, it was noticeable. I just searched the forum but i got entries on issues on automatic transmissions (overdrives) I'm quite unexperienced on this stuff, and i hope you guys could give me some advice, i like my Raider very much but running at 50 mph with the RPM hitting 3600 its tiring and no-fuel-efficient.
Thank you in advance. Welcome Ricardo, Let me get this straight... you have a 5 speed Manual that doesn't change rpm when you shift into 5th? I'm far from an expert on this but I'm not sure that's physically possible unless a prior owner changed the drive gears in the transmission. <img src="/forums/images/graemlins/confused.gif" alt="" />
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Re: Raider 87 shifting to 5th gear doesn't change RPM
[Re: off-roader]
#983165
01/30/10 04:47 AM
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Joined: Aug 2008
Posts: 1,186
Body Damage is Cool
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hmm... my calculations with: stock tires, 3600rpm, 50mph, equals 3rd gear....You have no 4th or 5th gear??or what?
'88 Raider, 33" Maxxis, 2" body lift, 10K winch
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Re: Raider 87 shifting to 5th gear doesn't change RPM
[Re: 0778drz110]
#983166
01/30/10 05:02 AM
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Joined: May 2000
Posts: 6,132
Trail Leader
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87 Turbo Intercooled Raider, roller cam, torsen rear diff, LSD front diff, lockup auto with modified converter, V6 brakes, low transfer case gears...
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Re: Raider 87 shifting to 5th gear doesn't change RPM
[Re: Kevin C]
#983167
01/30/10 05:26 AM
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Joined: Jun 2003
Posts: 7,356
Trail Leader
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Intersting thought. How fast does the speedo read in 1st before you really have to shift?
Big Truck: 00, 3.5, Endeavor, 5-Spd drive line in hand! Little Truck: 87, 2.6T I/C, MT, LSDs, Tonneau Top Her Truck: 03, 3.8, 20th Anniv, 65k Daughter's: 06 Eclipse, Keeping it Mitsu! FSMs: MitsubishiLinks.com
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Re: Raider 87 shifting to 5th gear doesn't change RPM
[Re: 0778drz110]
#983168
01/30/10 06:44 AM
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Joined: Jan 2010
Posts: 15
OP
Need a Spot
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Thank you all of you for your answers hmm... my calculations with: stock tires, 3600rpm, 50mph, equals 3rd gear....You have no 4th or 5th gear??or what? I seems i don't have 5th gear, i'm at 40-45 mph and when i shift to 5th is identical to the 4th gear, so no RPM change,
Last edited by ricardus; 01/30/10 07:12 AM.
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Re: Raider 87 shifting to 5th gear doesn't change RPM
[Re: MontyMcV]
#983169
01/30/10 07:09 AM
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Joined: Jan 2010
Posts: 15
OP
Need a Spot
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MontyMcV : I must shift at very low speed, at 13 mph i think, at that point the RPM is hitting 2000 - 2300 .
Last edited by ricardus; 01/30/10 07:10 AM.
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Re: Raider 87 shifting to 5th gear doesn't change RPM
[Re: ricardus]
#983170
01/30/10 07:10 AM
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Joined: Jan 2000
Posts: 16,227
Web Wheeler
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I must shift at very low speed, at 13 mph i think, at that point the RPM is hitting 2000 - 2300 . You may be in Low Range (4wd low) versus 4wd high or 2wd high.
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Re: Raider 87 shifting to 5th gear doesn't change RPM
[Re: off-roader]
#983171
01/30/10 07:21 AM
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Joined: Jan 2010
Posts: 15
OP
Need a Spot
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I must shift at very low speed, at 13 mph i think, at that point the RPM is hitting 2000 - 2300 . The gearshift is in 2wd, i know 4wd low is even slower to increase power and 4wd high has wider range. I mean, the 4wd is disabled. Maybe i'm wrong with the precise speed i told you, but i know it is very low speed. As for the first thing you told me, the prior owner changing the drive gear, i think it is possible the re arrange it to the original configuration, acquiring an original 5th drive gear? or maybe i'm wrong?
Last edited by ricardus; 01/30/10 07:23 AM.
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Re: Raider 87 shifting to 5th gear doesn't change RPM
[Re: ricardus]
#983172
01/30/10 09:16 AM
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Joined: Sep 2001
Posts: 8,557
Forum Moderator
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the difference between 4th, and 5th is not that big.
87 Raider 4D56td v5MT1
31's..Basically Stock
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