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| more power to the slant 6? https://slantsix.org/forum/viewtopic.php?t=24214 |
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| Author: | dakight [ Sat Jul 28, 2007 5:47 am ] |
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Actually, Randy's Ring and Pinion as well as Jaws Gear ( Moser ) have a fairly wide selection of gears for a 7.25. I'm considering the 3.55 gears myself. |
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| Author: | sick6 [ Sat Jul 28, 2007 6:11 am ] |
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Cool! I didn't know that. are the prices resonable compared to gears for a 8 3/4? |
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| Author: | dakight [ Sat Jul 28, 2007 8:16 am ] |
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Depending on the brand and ratio from under $200 to about $300 as I recall. If I didn't have a sure-grip I wouldn't even consider it for a 7.25 |
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| Author: | Blackdog455 [ Sat Jul 28, 2007 8:41 am ] |
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alright, wheres a website i can check them out? |
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| Author: | dakight [ Sat Jul 28, 2007 11:03 am ] |
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Randy's Ring and Pinion: http://www.ringpinion.com Jaws Gear: http://www.jawsgear.com |
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| Author: | tarheelmopar [ Sat Jul 28, 2007 12:17 pm ] |
| Post subject: | rear gearing |
i have 4:11 gearing in my 7 1/4 rearend pumpkin and you can get 3:55's also through Motive Gear. |
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| Author: | Charrlie_S [ Sat Jul 28, 2007 4:35 pm ] |
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Most people don't know this, but the old "Direct Connection" program had race gears available for the 7 1/4 rear. 4.10, 4.56, 4.88 and 5.13. I have a 5.13 SG 7 1/4 rear, and a NOS 4.56 ring and pinion, along with a good used SG unit to be assembled in the future. My 66 Valiant has a 3.91 SG 7 1/4 in it. |
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| Author: | dakight [ Sat Jul 28, 2007 4:47 pm ] |
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This thread has morphed from being an engine related topic to a rearend topic but I guess I'll continue it. Are parts availalbe for an early ( 65 I believe ) 7.25 sure-grip? I'm assuming mine's in good shape but I wonder if it would be worth the trouble and $$$ to freshen it up. It there any way to test it before installing it in the housing? |
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| Author: | Blackdog455 [ Sat Jul 28, 2007 7:47 pm ] |
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ok well what exacly do the gears do? |
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| Author: | dakight [ Sun Jul 29, 2007 6:05 am ] |
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I'm not sure exactly what you're asking here. The answer to your literal question is that they take the rotation of the engine, through the transmission and driveshaft, and turn it 90* to drive the wheels. But, I'm sure you already knew that. I'm going to guess what you really want to know and answer it this way. The lower (numerically higher) gears act like a longer lever to multiply the torque of the engine making it easier to get the vehicle rolling and accelerate. The tradeoff is that the engine has to run proportionally faster to go the same speed. A 2.76 gearset (common in later a-bodies) requires the driveshaft to turn 2.76 revolutions for each revolution of the wheels. A 3.55 gearset will require 3.55 turns of the driveshaft for the same 1 turn of the wheels. |
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| Author: | Aggressive Ted [ Sun Jul 29, 2007 11:42 am ] |
| Post subject: | More power |
Blackdog455, I live not to far from you in Black Diamond. Stop by and we can discuss each step for getting more torque and power. PM for address or I can email my notes. I recently rebuilt my SL6 engine last fall and winter. Doctor Dodge and Slant Six Dan tutored me through each step of the process. I have lots of punch and torque and am turning a 2.76 8 3/4 rear which is new. I burned up (3) 7 1/4 rears, various ratios in 5 years. I haven't finished recurving the distributor yet or sealed all the intake leaks yet, but I am getting pretty close now. I need to install the my new Aussie carbon fiber gaskets to seal the intake leaks. The SL6 has allot of low end power potential, more than I thought possible. Even though mine is not tuned perfectly yet it has far more use able power. On your gear question, I have done the opposite and am using the highest gear ratio Randy's Ring and Pinion had in stock, 2.76. I have run 2.76, 2.94, 3.23 and 3.55. The gear ratio didn't make that much difference in performance in a 3500 pound car. Yes, the lower gears were snappier, but compared to upping the compression ratio, head work/porting, cam, recurving the distributor, better carb, larger exhaust pipe, etc. that really woke up the motor. I drive 128 miles a day and keep good notes on each change. I will be glad to share what I have done and learned so far. I really don't think you will be happy adding some Clifford parts with out doing the basics first. The more I understand the Clifford products, I am not sure I would ever be happy with them since my goal is more of a commuter vehicle and an occasional Pacific Raceways the old (Seattle International Raceway Drag strip). What year car do you have and what model is it? Mine is a yellow 74 Dart Swinger with the vinyl top removed. |
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| Author: | Blackdog455 [ Sun Jul 29, 2007 2:40 pm ] |
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thanks, you guys basically answerd my questions. and to aggressive ted. I have a 1974 dodge dart sport. Its an ugly brown/maroon. I plan on painting it this upcoming month. Yesterday i went to a car show and ive made my mind that i am going to turbocharge it, but i dont know where to get a used one. As far as i know, i know of no junkyards around here. But first on my list right now is the interior i think. |
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| Author: | Blackdog455 [ Sun Jul 29, 2007 11:27 pm ] |
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I just found these. Do any of you guys know if they would work good? better then clifford or dutra duals? im just wondering here, not like ill buy them though. http://store.summitracing.com/partdetai ... toview=sku |
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| Author: | sick6 [ Mon Jul 30, 2007 4:41 am ] |
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as usual with summit, they are way overpriced for a mopar unit. as far as I know hooker headers are all right, but if you going with a turbo I don't think these are the right fit for you. I am not a turbo guy myself (although they do work very well and many here have done them) but I beleive you should find the turbo itself before you get too far with this. please look through what you can find for turbo listings on this site to see what is all involved. |
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| Author: | Blackdog455 [ Mon Jul 30, 2007 11:25 am ] |
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ok ive read the article about turbos on this website and ive read many old posts about it to. I have some questions though. im going to super six my car, if i were to turbo it, what would my milage be around? And how my hp does a turbo add on? i really want a turbo but if i get a very huge decrease in milage then i might have to rethink getting one. |
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