olblue1062 Posted May 19, 2009 Report Share Posted May 19, 2009 Pros and cons of 1 piece, light weight drive shaft? I suppose more RWHP is obvious. How much with stock SGT? Can you tell the difference? How about flex, vibration, etc? Who has what? TIA OlBlue Link to comment Share on other sites More sharing options...
SGT/SC2873 Posted May 19, 2009 Report Share Posted May 19, 2009 good question. I am pricing them now trying to figure out what I want to do......Craig Link to comment Share on other sites More sharing options...
SGT2666 Posted May 19, 2009 Report Share Posted May 19, 2009 My feeling is that Chromeoly is the way to go strong light small diameter less prone to issues then the aluminum seems to be. Link to comment Share on other sites More sharing options...
kahmann Posted May 19, 2009 Report Share Posted May 19, 2009 The Driveshaft Shop aluminum one piece seems to be a favorite around here. It's on my to do list. Ken Link to comment Share on other sites More sharing options...
blueshawk Posted May 19, 2009 Report Share Posted May 19, 2009 The Driveshaft Shop aluminum one piece seems to be a favorite around here. It's on my to do list. Ken Has anyone tried the 2-piece Aluminum/Chromoly from these guys? It would fix the harmonic vibration problem and be a lot lighter too (27 lbs vs. 48 lbs). Link to comment Share on other sites More sharing options...
shelbytexan Posted May 20, 2009 Report Share Posted May 20, 2009 I went with the 4 in. aluminum d.s. from the axle exchange. I have no issues with it at all. Paid 699.00 plus shipping. The shaft weighs 18 lbs. and the adapter weighs 3 lbs. for a total weight of 21 lbs.t This is what was advertised and this is also what i weighed it at. No problem with clearence either and it is rated for 750 plus h.p. JDM racing uses these shafts on there cars so i don't think i will ever have to worry about this shaft in my car. Good mod but pricey. Don't forget the adj. upper control arm to set your pinion angle when changing the shaft. As for as h.p. gain you might gain 10 or 12 h.p. but with the shaft weighing half as much as the steel 2 piece it's easy to see how you would gain h.p. because of the less weight you have to turn. The factory shaft is only 3 in. but very bulky. The difference in the 3 1/2 in and 4 in is the 4 in. is stronger but i don't think you could tear up the 3 1/2 '' if you wanted to. The 4 '' can handle a little more critical speed but there are a lot of 3 1/2 '' shafts with s/c that have no issues. Good-Luck Link to comment Share on other sites More sharing options...
stormeaston Posted May 20, 2009 Report Share Posted May 20, 2009 I've got the one piece drive shaft from Coast, it's laying in my garage right now I'm put'n it on this weekend, I'll let you know! I bought it when they had a special on E-bay, 500.00. Link to comment Share on other sites More sharing options...
Matts Posted May 20, 2009 Report Share Posted May 20, 2009 I had a one piece in my Saleen. The biggest surprise is taking it out of the box and comparing the stock weight to the one piece weight. The biggest con is if you like to rev match or heel-toe, you are definitely going to feel those down shifts in the seat of your pants. I didn't have any other problems other than that. Link to comment Share on other sites More sharing options...
CudaFly Posted May 20, 2009 Report Share Posted May 20, 2009 I'm using the DynoTech 1-piece aluminum 3.5". DynoTech builds driveshafts for NASCAR, NHRA, NMRA, etc... High quality and a very easy install. http://www.dynotechengineering.com/ http://www.brenspeed.com/dshaft05gt.html Link to comment Share on other sites More sharing options...
69dejavue Posted May 21, 2009 Report Share Posted May 21, 2009 I'm using the DynoTech 1-piece aluminum 3.5". DynoTech builds driveshafts for NASCAR, NHRA, NMRA, etc... High quality and a very easy install. http://www.dynotechengineering.com/ http://www.brenspeed.com/dshaft05gt.html Is the dyno tech a simple bolt in or did you have to reset the ring and pinion clearances? Link to comment Share on other sites More sharing options...
CudaFly Posted May 21, 2009 Report Share Posted May 21, 2009 Is the dyno tech a simple bolt in or did you have to reset the ring and pinion clearances? Yes the DynoTech is a simple bolt-on, no adaptor required. I did use an adjustable Upper Control Arm to set the pinion angle but that is probably a good idea to do regardless of which brand 1-piece drive shaft you use. Link to comment Share on other sites More sharing options...
ilmor Posted May 21, 2009 Report Share Posted May 21, 2009 Yes the DynoTech is a simple bolt-on, no adaptor required. I did use an adjustable Upper Control Arm to set the pinion angle but that is probably a good idea to do regardless of which brand 1-piece drive shaft you use. Can someone explain to me what this pinion angle thing is and how the new driveshaft changes it? edit - Never mind, I googled it - so now I ask, does it require special instruments or something to get the pinion angle correct or can any of us do this in our garages? Link to comment Share on other sites More sharing options...
SGT2666 Posted May 22, 2009 Report Share Posted May 22, 2009 Can someone explain to me what this pinion angle thing is and how the new driveshaft changes it? edit - Never mind, I googled it - so now I ask, does it require special instruments or something to get the pinion angle correct or can any of us do this in our garages? You just need an inclineometer and a adjustable control arms. Link to comment Share on other sites More sharing options...
William Rodgers Posted May 23, 2009 Report Share Posted May 23, 2009 I'm using the DynoTech 1-piece aluminum 3.5". DynoTech builds driveshafts for NASCAR, NHRA, NMRA, etc... High quality and a very easy install. http://www.dynotechengineering.com/ http://www.brenspeed.com/dshaft05gt.html I researched this extensively and I also got the Dynotech. It gets nothing but extraordinary reviews and as Cuda said it is used by all the professionals. Link to comment Share on other sites More sharing options...
69dejavue Posted May 23, 2009 Report Share Posted May 23, 2009 Yes the DynoTech is a simple bolt-on, no adaptor required. I did use an adjustable Upper Control Arm to set the pinion angle but that is probably a good idea to do regardless of which brand 1-piece drive shaft you use. Any vibrations? Link to comment Share on other sites More sharing options...
William Rodgers Posted May 23, 2009 Report Share Posted May 23, 2009 Any vibrations? None for me......... Link to comment Share on other sites More sharing options...
shelbytexan Posted May 23, 2009 Report Share Posted May 23, 2009 That's one of the reasons why you buy these shafts is to not have vibrations. You have Coast,Dynotech,Spyder shaft,Axle Exchange and a few more who sell 3 1/2'' and 4'' aluminum shafts and no one has been critical of them and they are all very close in price. It's just a matter of whether a person feels they are getting enough bang or should i say h.p. for the buck. I'm pleased with mine but don't think i would be displeased no matter what brand i bought as long as it was aluminum. Link to comment Share on other sites More sharing options...
SGT2666 Posted May 24, 2009 Report Share Posted May 24, 2009 That's one of the reasons why you buy these shafts is to not have vibrations. You have Coast,Dynotech,Spyder shaft,Axle Exchange and a few more who sell 3 1/2'' and 4'' aluminum shafts and no one has been critical of them and they are all very close in price. It's just a matter of whether a person feels they are getting enough bang or should i say h.p. for the buck. I'm pleased with mine but don't think i would be displeased no matter what brand i bought as long as it was aluminum. There seems to be a lot of positive comments here, I've seen a lot of vibration complaints and also clearance issues with the Aluminum shafts /shrug Link to comment Share on other sites More sharing options...
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