Rotarded1647545491 Posted May 10, 2011 Report Share Posted May 10, 2011 Where are the pistons? Did you forget them? Quote Link to comment Share on other sites More sharing options...
rb26deet32 Posted May 11, 2011 Report Share Posted May 11, 2011 I swear ... it's like some of you folks don't like car tech at all. It's incredibly simple, and makes efficient power. http://i84.photobucket.com/albums/k21/sol740/grem.jpg As the dorito passes over each chamber it kills each gremlin with oil, watery oil, which creates 2 more gremlins that are then killed in the following chamber. Science. Now I get it. See how simple that was? Quote Link to comment Share on other sites More sharing options...
rb26deet32 Posted May 11, 2011 Report Share Posted May 11, 2011 Where are the pistons? Did you forget them? He's not using the normal rotary pistons. He's planning on using a nice set of rectangle pistons. Probably going to have to over night them from Japan. But he can always just put them on Harry's tab. Quote Link to comment Share on other sites More sharing options...
FourString Posted May 12, 2011 Report Share Posted May 12, 2011 Looks good man. I wish I had the time to do my own engine work. I'm picking mine up tomorrow from Logan. Hopefully the car will be back on the road within a month. Quote Link to comment Share on other sites More sharing options...
Twistedrx7 Posted May 12, 2011 Report Share Posted May 12, 2011 Looks good man. I wish I had the time to do my own engine work. I'm picking mine up tomorrow from Logan. Hopefully the car will be back on the road within a month. What are the specs of the new motor? Quote Link to comment Share on other sites More sharing options...
Yasser-Hanbali Posted May 12, 2011 Report Share Posted May 12, 2011 funny thing is that Kevin's Rotary powered FD would walk a lot of people on this forum... :gabe::gabe: Quote Link to comment Share on other sites More sharing options...
AWW$HEEET Posted May 12, 2011 Report Share Posted May 12, 2011 http://www.mazdamaniac.com/images/misc/renesis_pop.jpg http://www.oregonstate.edu/~donind/rotary4.jpg http://1.bp.blogspot.com/_Zhnhq_exYt0/SHVRbbSEW-I/AAAAAAAAAVs/8wCZoTzO_Jk/s1600/Rx-7%2Bmotivational%2Bposter%2Bmazda.jpg Quote Link to comment Share on other sites More sharing options...
FourString Posted May 12, 2011 Report Share Posted May 12, 2011 What are the specs of the new motor? I actually just had a leak at the rear iron that needed fixed. While it was there I had Peter make me an OMP block off, repaint the engine, Delrin motor mounts, RX8 water pump gasket, new oil pan, new ACT clutch, light weight flywheel, new counter weight, and a Garfinkle oil pan brace. A few of my specs are: half bridgeport, 2mm aviation apex seals, Mazda corner seals and springs, and a T04r with supporting mods. Quote Link to comment Share on other sites More sharing options...
Yasser-Hanbali Posted May 12, 2011 Report Share Posted May 12, 2011 I actually just had a leak at the rear iron that needed fixed. While it was there I had Peter make me an OMP block off, repaint the engine, Delrin motor mounts, RX8 water pump gasket, new oil pan, new ACT clutch, light weight flywheel, new counter weight, and a Garfinkle oil pan brace. A few of my specs are: half bridgeport, 2mm aviation apex seals, Mazda corner seals and springs, and a T04r with supporting mods. Sounds like a great setup Quote Link to comment Share on other sites More sharing options...
Twistedrx7 Posted May 12, 2011 Report Share Posted May 12, 2011 I actually just had a leak at the rear iron that needed fixed. While it was there I had Peter make me an OMP block off, repaint the engine, Delrin motor mounts, RX8 water pump gasket, new oil pan, new ACT clutch, light weight flywheel, new counter weight, and a Garfinkle oil pan brace. A few of my specs are: half bridgeport, 2mm aviation apex seals, Mazda corner seals and springs, and a T04r with supporting mods. yeah those Aviation springs arent that great, good thing you went stock. why not 3mm seals its the bees knees now haha. I think im going to take my apart this weekend and see what is going on inside for fun. might upgrade a couple things as well. Im sitting with a full bridge with stock twins, twins for break in until the single is on the way. maybe ill try and make it out before the end of the month Quote Link to comment Share on other sites More sharing options...
ihateu3 Posted May 13, 2011 Report Share Posted May 13, 2011 there is a rotating rotary diagram here showing everyone how it works, simple... yes, ingenious YES. I cannot fathom thinking this engine design up myself... http://auto.howstuffworks.com/rotary-engine4.htm Quote Link to comment Share on other sites More sharing options...
Rotarded1647545491 Posted May 13, 2011 Report Share Posted May 13, 2011 I actually just had a leak at the rear iron that needed fixed. While it was there I had Peter make me an OMP block off, repaint the engine, Delrin motor mounts, RX8 water pump gasket, new oil pan, new ACT clutch, light weight flywheel, new counter weight, and a Garfinkle oil pan brace. A few of my specs are: half bridgeport, 2mm aviation apex seals, Mazda corner seals and springs, and a T04r with supporting mods. Over/Under on when you sheer the teeth off of 3rd gear due to Trans. case flex? Quote Link to comment Share on other sites More sharing options...
FourString Posted May 16, 2011 Report Share Posted May 16, 2011 Sounds like a great setup Yeah, I like the car how it is right now. If I have to do it all over again, I will be changing a few things. yeah those Aviation springs arent that great, good thing you went stock. why not 3mm seals its the bees knees now haha. I think im going to take my apart this weekend and see what is going on inside for fun. might upgrade a couple things as well. Im sitting with a full bridge with stock twins, twins for break in until the single is on the way. maybe ill try and make it out before the end of the month If I do another build, it will be 3mm rotors with Goopy seals. I'd like to see your car sometime this summer. Over/Under on when you sheer the teeth off of 3rd gear due to Trans. case flex? Are you talking about the delrin mounts not flexing enough to absorb the vibrations? Quote Link to comment Share on other sites More sharing options...
Yasser-Hanbali Posted May 16, 2011 Report Share Posted May 16, 2011 honestly the whole debate between 3mm and 2mm seals is over rated, i run 2mm super seals with no issues. and every motor we have built runs 2mm unless the owner wants 3mm and i dont see any real performance difference between the two. a well built motor running 2mm seals can handle as much boost as a motor with 3mm, and you also dont have to get your rotors milled to fit the bigger seals, i know first hand we have dealt with some motors with idle issues using 3MM. Quote Link to comment Share on other sites More sharing options...
Dammit Charlie Posted May 16, 2011 Report Share Posted May 16, 2011 people still use those things? i was sure that everyone one that wanted a performance rx7 has done a lsx swap by now. Damn... you beat me to the "People still use these things?" joke. :fuuuu: Quote Link to comment Share on other sites More sharing options...
Mojoe Posted May 16, 2011 Report Share Posted May 16, 2011 My dick is bigger than yours Quote Link to comment Share on other sites More sharing options...
Dammit Charlie Posted May 16, 2011 Report Share Posted May 16, 2011 My dick is bigger than yours :lolguy: Everyone knew this. I do drive a V-8 turdmobile, remember? Quote Link to comment Share on other sites More sharing options...
Twistedrx7 Posted May 16, 2011 Report Share Posted May 16, 2011 honestly the whole debate between 3mm and 2mm seals is over rated, i run 2mm super seals with no issues. and every motor we have built runs 2mm unless the owner wants 3mm and i dont see any real performance difference between the two. a well built motor running 2mm seals can handle as much boost as a motor with 3mm, and you also dont have to get your rotors milled to fit the bigger seals, i know first hand we have dealt with some motors with idle issues using 3MM. probably because they wered milled corrected...3mm is primary used for higher horsepower engines. although they are common in low horsepower just because people are trying to establish some sense of reliablity which isnt going to happen from that. Quote Link to comment Share on other sites More sharing options...
KD93R1 Posted May 17, 2011 Author Report Share Posted May 17, 2011 It would seem to me there would, and could not be any possible gain w/3mm seals, OR ELSE MAZDA WOULDA USED EM???????;). The only reason I can see 3mm even being an option is that slot for seal in rotor is beyond acceptable tolerance and the only way to prevent replacing it is to machine out grove & use 3mm seals. If bigger, or in this case wider seal is superior, then why not a 4mm, 5mm, 6mm, etc. etc. etc......?????? Why have more friction, or you know, more surface area rubbin the rotor housing??? Makes no sense to me at all. Why reduce the size of the combustion chamber???? 2mm is the way to go in my opinion. For example, if a fella had brand spankin new rotors, which would be set up for 2mm seals, would ya machine em out for 3mm???? I would think not!!! However, I am not an expert on these by any means and as I'm sure everyone has determined by now, my car is all show and no go. Quote Link to comment Share on other sites More sharing options...
TTQ B4U Posted May 17, 2011 Report Share Posted May 17, 2011 I love the black car, but the silver thing you're building.....keep it out and plug in a V8. You will be much happier in the end. Quote Link to comment Share on other sites More sharing options...
KD93R1 Posted May 17, 2011 Author Report Share Posted May 17, 2011 I love the black car, but the silver thing you're building.....keep it out and plug in a V8. You will be much happier in the end. You know it would require a v12 to surpass a 2 rotor engine (usually) right? I've been part of some v-8 builds, they are fun too, to each his own. Personally, I have no interest what-so-ever in workin on anything w/pistons, not after having a rotary. Nothin better than a 10000cc dirt bike w/4 tires. Quote Link to comment Share on other sites More sharing options...
Smokey Posted May 17, 2011 Report Share Posted May 17, 2011 Nice build. What's the silver rotary project being referred to? Re 2mm vs 3mm: it was always my understanding that the reliability difference wasn't so much the size of the seal but the construction being 2 piece or 3 piece seals. The factory 2mm seals that everyone hated so much were 3 pieces, which Mazda later updated to be 2 piece seals. I think that in the beginning the 3mm seals were the only 2 piece option and that's why people portrayed them as more reliable. Now that there are plenty of 2 piece 2mm seals I would put those down as my preference in a build unless as stated there is damage to the rotor in which it needs milled anyway. Quote Link to comment Share on other sites More sharing options...
Yasser-Hanbali Posted May 17, 2011 Report Share Posted May 17, 2011 Nice build. What's the silver rotary project being referred to? Re 2mm vs 3mm: it was always my understanding that the reliability difference wasn't so much the size of the seal but the construction being 2 piece or 3 piece seals. The factory 2mm seals that everyone hated so much were 3 pieces, which Mazda later updated to be 2 piece seals. I think that in the beginning the 3mm seals were the only 2 piece option and that's why people portrayed them as more reliable. Now that there are plenty of 2 piece 2mm seals I would put those down as my preference in a build unless as stated there is damage to the rotor in which it needs milled anyway. chirs i believe they are referring to the engine it self as the silver thing. also as stated the only way i would run 3mm is if my rotors were beyond tolerance. Quote Link to comment Share on other sites More sharing options...
Smokey Posted May 17, 2011 Report Share Posted May 17, 2011 chirs i believe they are referring to the engine it self as the silver thing. guess I just misread that then. Thanks for clarifying. Quote Link to comment Share on other sites More sharing options...
KD93R1 Posted May 18, 2011 Author Report Share Posted May 18, 2011 I think that in the beginning the 3mm seals were the only 2 piece option and that's why people portrayed them as more reliable. Now that there are plenty of 2 piece 2mm seals I would put those down as my preference in a build unless as stated there is damage to the rotor in which it needs milled anyway. Yo know I never thought of it that way, 2pc vrs 3pc and 2mm only in 3pc earlier. Thats a good point, valid no doubt. I use RA 2mm 2pc myself. I am also assuming the silver thing is the actual engine itself. Dude this rain sucks. Quote Link to comment Share on other sites More sharing options...
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