4 rotor 26B
#26
You would be surprised. There are quite a few being built already & they are usually done in lots of 5 or 10 when the shafts etc are being done. We have sent a few to the USA, but none to Russia, you would be the first! What did you do about a gearbox in the end?
#27
I like the idea of a 4 rotor. The 12a lenght sounds promising but probably doesn't lend itself much to turbo charging. Most 12a stuff is tricked out for NA. 12a 4 rotor sounds right for NA applications, 13b 3 rotor for forced inductions. Any thoughts on this?
#28
Originally Posted by mad20b
You would be surprised. There are quite a few being built already & they are usually done in lots of 5 or 10 when the shafts etc are being done. We have sent a few to the USA, but none to Russia, you would be the first! What did you do about a gearbox in the end?
I bet noone ever sold 3 rotor or 4 rotor shafts to Russia, we are the first here with such a projects.
Tranny is a modified th400. I am using th350 with my 3 rotors now, but it is too weak for my engine. Going to replace with th400.
Rear end is stock with tomei 2 way lsd and driveshaftshop axle bars...
#30
i thought about Gforce or richmond or jerico, but th400 is less expensive and still handle high power...
also i can still easily downshift with auto and that is more important with an auto tranny less impact is going to the rear end,driveshaft and axles.
we had a problem with 1000hp supra here with a PPG dog transmission kit. we broke almost everything with it (ring&pinion,axles, carbon driveshaft) due to hard start and gear switching.
imho gforce like sequential trannies of course has less power loss inside but much more money have to be involved to make it right and reliable and also driver have to be very experienced.
i have plenty of power from my engine so i can spend a little of it to the power loss of the auto tranny but get other significant advantage.
i do not have a goal yet to run 7 seconds 8 would be very enough!
also i can still easily downshift with auto and that is more important with an auto tranny less impact is going to the rear end,driveshaft and axles.
we had a problem with 1000hp supra here with a PPG dog transmission kit. we broke almost everything with it (ring&pinion,axles, carbon driveshaft) due to hard start and gear switching.
imho gforce like sequential trannies of course has less power loss inside but much more money have to be involved to make it right and reliable and also driver have to be very experienced.
i have plenty of power from my engine so i can spend a little of it to the power loss of the auto tranny but get other significant advantage.
i do not have a goal yet to run 7 seconds 8 would be very enough!
#34
Originally Posted by 20bfd3s
i havnt dig much yet, waiting for the responce fom Jeff and KIWI.
I am thinking about NRS ceramic seals, new 13B housings ( mazdaspeed PP ported?)
probably KIWI kit or maybe Jeff`s stuff
Rx8 rotors? probably 13B/20B rotors, i have plently of them in stock
electric coolant pump
still havnt desided about dry sump but most probably i will not go this way, just custom oil pan will work well with some oil pump upgrades
the questions is, how to balance 4 rotors assembly?
I am thinking about NRS ceramic seals, new 13B housings ( mazdaspeed PP ported?)
probably KIWI kit or maybe Jeff`s stuff
Rx8 rotors? probably 13B/20B rotors, i have plently of them in stock
electric coolant pump
still havnt desided about dry sump but most probably i will not go this way, just custom oil pan will work well with some oil pump upgrades
the questions is, how to balance 4 rotors assembly?
Thats unless you have a huge torquewrench
For dragracing only im pretty sure a wet sump is good enough.
You also need to take into the moneywise consideration, that you need to have the centerplates milled for the gears.
Last edited by Kim; 02-22-06 at 02:43 PM.
#35
This sound amazing! Can think of a 23A 4-rotor in my RX-8!! Just spoke to Kiwi-RE and they were wery helpful and intersested in my project. If everything works out right i maybe have the excentric shaft here in about 6 weeks! Then the hard work will start...
/Lasse
/Lasse
#36
I don't care how ytou decide to do the project up. but i have a demand that must be full filled once the car is in good running condition. Vids. and lots of them :P, track, street whatever, i would juet love to see a 4 Rotor RX-8 think it would be sweet
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09-22-15 08:39 PM