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05-10-2011, 02:59 PM
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#1 |
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Registered User
Join Date: Oct 2010
Location: Edgewood Texas
Posts: 272
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My RPM's are too high!
Crusing down the highway, my rpm's are at about 3000! It's just a 350 motor and 350 trans with a shift kit! Te drop down cable doesn't work! Amd it has a lockup convertor! It ran like 2450 at 70 before my trans rebuild!!! Stock rearend!
Posted via Mobile Device
__________________
 1986 Single cab 2WD Chevy 350/350 1977 Single cab Dually C30 BB454!
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05-10-2011, 10:22 PM
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#2 |
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Registered User
Join Date: Dec 2010
Location: sioux city, iowa
Posts: 619
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Re: My RPM's are too high!
Is it going into high gear or staying in second? Count the shifts.
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05-10-2011, 10:33 PM
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#3 |
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Registered User
Join Date: Oct 2010
Location: Edgewood Texas
Posts: 272
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Re: My RPM's are too high!
Ita going into third ! I also just got it rebuilt
Posted via Mobile Device
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1986 Single cab 2WD Chevy 350/350 1977 Single cab Dually C30 BB454!
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05-10-2011, 11:59 PM
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#4 |
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Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,938
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Re: My RPM's are too high!
What transmission is it?
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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05-11-2011, 12:03 AM
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#5 |
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Registered User
Join Date: Oct 2010
Location: Edgewood Texas
Posts: 272
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Re: My RPM's are too high!
Th350
Posted via Mobile Device
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1986 Single cab 2WD Chevy 350/350 1977 Single cab Dually C30 BB454!
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05-11-2011, 12:18 AM
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#6 |
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Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,938
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Re: My RPM's are too high!
The convertor locking up will get some RPM reduction, but it won't get 600rpm worth. The kickdown cable not working is where I would start. Find out why it's not working.
__________________
67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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05-11-2011, 12:20 AM
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#7 |
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Registered User
Join Date: Oct 2010
Location: Edgewood Texas
Posts: 272
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Re: My RPM's are too high!
Okay! Thanks for helping! I will see what's wrong with my convertor!
Posted via Mobile Device
__________________
1986 Single cab 2WD Chevy 350/350 1977 Single cab Dually C30 BB454!
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05-11-2011, 12:26 AM
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#8 | |
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Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,938
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Re: My RPM's are too high!
Quote:
__________________
67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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05-11-2011, 12:27 AM
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#9 |
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Registered User
Join Date: Oct 2010
Location: Edgewood Texas
Posts: 272
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Re: My RPM's are too high!
Well yeah! Haha that too! That's first!
Posted via Mobile Device
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1986 Single cab 2WD Chevy 350/350 1977 Single cab Dually C30 BB454!
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05-11-2011, 03:49 PM
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#10 |
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Registered User
Join Date: Nov 2010
Location: Windsor Locks
Posts: 628
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Re: My RPM's are too high!
What does the truck have for gears and what size tires are you running?
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05-11-2011, 03:50 PM
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#11 |
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Registered User
Join Date: Oct 2010
Location: Edgewood Texas
Posts: 272
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Re: My RPM's are too high!
275/60/15 and stock gears idk lol
Posted via Mobile Device
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1986 Single cab 2WD Chevy 350/350 1977 Single cab Dually C30 BB454!
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05-11-2011, 04:14 PM
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#12 |
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Badass
Join Date: Jan 2009
Location: lox. fl
Posts: 4,586
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Re: My RPM's are too high!
thats pretty normal. th350 do NOT have a over drive. only 3 gears. the kick down cable has nothing to do with driving. it only for what the name employs. kick down. down shift.
ive got a shorter tire. 25.5 inch tall. with only 3:42 gears im doing 65 on the highway at 3k.. if you want do drop your rpm's go with a 700r4. its a over drive tranny.
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Think outside the box? -84c10 (1stcar)→My Build←  -00 Saturn 5spd drop a gear and disappear! 1/4:13:90 
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05-11-2011, 04:33 PM
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#13 | ||
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Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,938
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Re: My RPM's are too high!
Quote:
Quote:
__________________
67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. Last edited by SCOTI; 05-11-2011 at 04:34 PM. |
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05-11-2011, 08:54 PM
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#14 |
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Registered User
Join Date: Nov 2010
Location: Windsor Locks
Posts: 628
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Re: My RPM's are too high!
how the new trans feel and how does the fluid look ? could it possibly be slipping ?
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05-11-2011, 08:59 PM
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#15 |
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Square
Join Date: Feb 2011
Location: Phoenix Arizona
Posts: 1,568
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Re: My RPM's are too high!
vacuum leak will do it too.
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