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#881
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Paul,
Sent you a PM last week...still 3:73 just have more in the first gear of my M23Z trans. Dave 67 Nova Boy |
#882
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I knew it was not 88's.
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#883
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#884
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#885
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#886
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I was sick last week and did not see it. I was looking what extra weight you are turning with 302 cu in,it is not just a lower first gear. You have a bigger heavy clutch,heavy bigger trans,bigger heavy out put yoke,bigger heavy new[3 inch]drive shaft,and you have a bigger heavy yoke that you hurt the pinion putting on. Now could be the time to think.
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#887
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Paul,
The clutch is a twin disc { All McCloud} with a much lighter flywheel. Went from a 30LB 11" to an aluminum 12 LB 10.5. The rear/front yoke is bigger and so are the u-joints. 1310 to a 1350. Did break the pinion threads and nut but all is new. The drive shaft went from a factory unit to a PST 3" almost double the size. The balancer is smaller with less weight so I took allot of weight off the engine. Every thing I touched, I made better/stronger. It did start up but am having issues with the mini starter. It does not engage some times so I took out and brought back to where I bought it and was checked out. All good and told to add shim. I added one shim...same thing so I added another shim. Same result, so not sure what to do next. Allot of fun getting to the starter! Dave |
#888
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If the front joint and yoke is bigger,drive shaft is bigger,trans is bigger,rear joint and yoke is bigger,clutch is twin disc is bigger and you lighten flywheel and all is good I do not see it. Only first gear is lower and no other gear is different in the trans, I think other gears are different too. If you take off parts and weigh them and weigh the ones you put on,then you have something. Going to a lighter fly wheel you have a different dance step on the street and it is not easy,but I guess you know that. Street car or race car are not the same. Help me understand your car that has only a lower first gear,you said. Bigger and stronger for a 302 cu engine may slow the car down. The size of the balancer and flywheel I do not off set the rest of stuff[drive shaft is a lot more] in your mine,biger and stronger is not "the hot set up".
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![]() Last edited by Plowman; 07-17-2019 at 01:44 AM. |
#889
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Paul,
M23Z gear ratios are... 2.99:1 – 2.04:1 – 1.47:1 – 1.00. M20 gear ratios are...2.52, 1.88, 1.46, 1.00 Take off feel will be like 5:09 first gear with the 302...3:73 and my G70 X 14 GoodYears. Not a race car...street car and much safer, so yes...it may not be up to race car standards but is a safe car now. Tough to have all the right combinations...don't want to drive around with 4:88's in the rear. Good for racing but not for a street car. The 302 will do fine with the M23Z Much stronger/better trans then I had. The 302 never liked the 3:73 with the M20 trans when I took the 4:11's out, but I hope that the M23Z & cross ram will be a better combo.What I did was best I could with the combination I wanted. It will work just fine Paul. I did not want the best or the fastest car on the street anymore. Driving to the Grove is feasible now with the 3:73. One tank of racing gas gets me there and back. Dave |
#890
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Dave-If you put race gas, a dual disc, and a 12 lb fly-wheel, with all your other parts, then it’s a race car. I found the safest, and easiest way to transport a car is with a trailer. When Paul was younger, we trailer-ed his car and now he trailers my car. You have a new truck that should pull the trailer with no problem and you will be safe. Good luck with your race car. Paul
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