heywier427 Posted August 21, 2016 Report Share Posted August 21, 2016 Cause this happened :) Anyone got a spare :):) :) an orange one! It was really fun!!! 9 Quote Link to comment
KoHeartsGPA Posted August 21, 2016 Report Share Posted August 21, 2016 :rofl: :thumbup: 1 Quote Link to comment
q-tip Posted August 21, 2016 Report Share Posted August 21, 2016 Sir do you know how fast you were going? Honestly officer I have no idea, but it snapped the needle off the speedometer. 9 Quote Link to comment
MikeRL411 Posted August 21, 2016 Report Share Posted August 21, 2016 Sir do you know how fast you were going? Honestly officer I have no idea, but it snapped the needle off the speedometer. At least when my 1955 Chevy Bel Aire was blasted by a hurricane wind from the rear the needle hit a peg and was bent from that night on! 2 Quote Link to comment
xUltra510 Posted August 21, 2016 Report Share Posted August 21, 2016 Some say the needle is still spinning... 4 Quote Link to comment
paradime Posted August 21, 2016 Report Share Posted August 21, 2016 With the odometer and a stop watch you can still calculate your average speed. 1 Quote Link to comment
DatMo Posted August 21, 2016 Report Share Posted August 21, 2016 Regardless going over 100mph in a Datsun is basically space travel with all the rattle etc 6 Quote Link to comment
qwik510 Posted August 21, 2016 Report Share Posted August 21, 2016 Cause this happened :) Anyone got a spare :):) :) an orange one! It was really fun!!! Going to start calling you Top Speed Tom. Way to go. That is too funny. I'm pretty sure I have a replacement for you. Hit me up on Monday. 3 Quote Link to comment
heywier427 Posted August 21, 2016 Author Report Share Posted August 21, 2016 ^ Thanks David! I know 120 on the speedo is 128 ish gps. My guess is 155+/- :) It also broke the snub/tail of the tranny. The vibrations are what made me stop to be honest. It had more :) :) I didnt see the crack in the snub till I looked at the pictures :o Looks like im down for a bit. Booo... it was just getting sorted/fun!!! IMG_0009 by thomas telesco, on Flickr I think the driveshaft is way too short. It needs to be at least 2" longer I feel. Edit: ^ That is an Rx7 Tranny. Also, I am now thoroughly rust protected :) 3 Quote Link to comment
heywier427 Posted August 21, 2016 Author Report Share Posted August 21, 2016 Fits all 74-85 Rx2, Rx3, & Rx7s. Transmission tailshaft bushings often seize due to the high rpm seen in competition. The only way to avoid these failures is to install a needle bearing in place of the bushing. Fitment of the needle bearing requires machining out the inside diameter of the tailshaft housing. The tailshaft bearing kit includes needle bearing, snap ring and information regarding the tailshaft machining. Use of a hardened competition driveshaft yoke (Part #4352-25-130) is required with this modification. Lol. competition... http://atkinsrotary.com/store/74-85-Rotary-Competition-Tailshaft-Bearing-Kit-0000-02-9411.html 2 Quote Link to comment
datzenmike Posted August 21, 2016 Report Share Posted August 21, 2016 Shouldn't vibrate. Should vibrate as little as possible. 1 Quote Link to comment
edekalil Posted August 21, 2016 Report Share Posted August 21, 2016 That is too much. Looks like if it was in a little more the u joint would be closer to the trans tail and would be less able to vibrate and cause that damage maybe. 1 Quote Link to comment
r0p0doe Posted August 21, 2016 Report Share Posted August 21, 2016 With the odometer and a stop watch you can still calculate your average speed. I use a gps based speedo with my phone 2 Quote Link to comment
heywier427 Posted August 21, 2016 Author Report Share Posted August 21, 2016 Yeah. Gonna pull the trans, swap in another, replace the tail bearing, and get another driveshaft to cut down/lengthen to the proper size. Expensive fun run :) Could have been worse. Snub could have broken off, spearing the driveshaft into the pavement! 1 Quote Link to comment
G-Duax Posted August 21, 2016 Report Share Posted August 21, 2016 Could have been worse. Snub could have broken off, spearing the driveshaft into the pavement! Glad you now realized that something like an ill fitting driveshaft can kill you..... 1 Quote Link to comment
Charlie69 Posted August 22, 2016 Report Share Posted August 22, 2016 That is just wrong!!! LOL 1 Quote Link to comment
4perrev Posted August 22, 2016 Report Share Posted August 22, 2016 Did you have someone in the car who asked, "what does that button do!" Light speed youngster!! Nice work. Glad to see that it all held together. 1 Quote Link to comment
heywier427 Posted August 22, 2016 Author Report Share Posted August 22, 2016 Lol. It kind of didnt :) Vibrations weren't anything crazy, but the car is sorted pretty well/everything new. (Edit: untill the driveshaft) Its crazy. Picked up a stock Rx7 drivshaft, and its the perfect length... why did they eff with it...??? Clipped a god damn hawk carrying a bunny rabbit that same day! I panic braked at at least 110 and it stayed pretty damn straight. Al little high speed wiggle. Went down to 65 pretty well on stock brakes. I was extremely happy. I have wilwood upgrades, but have not yet installed :) The fuker would have hit me dead on in the windshield. The bunny clipped the a pillar by the antenna, and I thought it was toast. But not even a mark! Have to grind out the "non-replaceable" u-joints on the rx7. Im thinking I can just put the datsun end yoke on the rx7 shaft. Have to open up the datsun yoke a bit get the rx7 replacement u joint to press in. Then get it balanced. Ahh Datsun... 1 Quote Link to comment
Charlie69 Posted August 22, 2016 Report Share Posted August 22, 2016 Have a drive line shop build you a drive line for the speeds you want to drive. You half ass it and it could kill you or someone else at the speeds you drive. Not a time to be cheap! Quote Link to comment
G-Duax Posted August 23, 2016 Report Share Posted August 23, 2016 Probably doesn't have tires rated for that speed either. 1 Quote Link to comment
edekalil Posted August 24, 2016 Report Share Posted August 24, 2016 Don't have the link but I saw a nos speedometer on eBay the other day. It was I think around $45. Quote Link to comment
heywier427 Posted August 24, 2016 Author Report Share Posted August 24, 2016 Probably doesn't have tires rated for that speed either. G-Duax, I build cars for a "living" I am not retarded. I am not driving on biasplys. Tires are H speed rated. Thats good enough for me :) They have approx. 3000 miles on them, and 1 track day. Driveshaft will be back to me from a drive shaft shop Friday. New trans is in. I dont hand back a customers car with out a thorough shake down. Some problems dont arise utill they do! I was just being extra thorough with mine that night :) Quote Link to comment
G-Duax Posted August 24, 2016 Report Share Posted August 24, 2016 Yeah, OK, you make a living working on cars..... So do a lot of people that I would never let touch even my lawnmower. But I liked your baby picture...... Quote Link to comment
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