The Monsterbox 4 Rotor
02-08-17, 07:54 AM
#978
Rotary Enthusiast
I have always thought FD manifolds were always on the high side for a not very complex configuration of 2 flanges, 2 shortish runners and (maybe) 2 waste gate flanges.
A 4 rotor manifold is another ball game.
02-08-17, 02:04 PM
#981
Rotary Enthusiast
Looks very impressive. Sure looks snug by the chassis leg? I hope your engine is nice and rigidly mounted? Maybe there is more room there than it appears? Waiting for that fire up vid!! Eargasm!
02-08-17, 07:59 PM
#982
I wish I was driving!
If it was that ridiculously profitable, why aren't you in business for yourself?
The following users liked this post:
astrochild7 (07-09-17)
02-09-17, 01:50 AM
#985
youtube version if you can't see fb link
Few notes:
125+psi oil pressure above 4k rpm
revving here to around 7k, blips at end are to 3-3.5k. It's amazing how aligning the pulses into the collector unlocks the higher harmonic resonance orders
Last edited by Monsterbox; 02-09-17 at 01:55 AM.
02-09-17, 08:50 AM
#987
Wow that thing sounds amazing! I can want to see some more dyno vids!
I did it in my spare time and had a friend of mine that Tig welds finish weld it for me. I had maybe a day and a half into the actual build of the manifold and even built a jig in case I wanted to make more and refine my initial build. But that said, I already have a full time job that pays enough, I didnt feel the time and effort warranted the money I would make off of the manifold to make more than one for myself. There are PLENTY of quality manifolds from vendors out here. 
02-09-17, 11:43 AM
#990
hey guys, this post is by no means critical of this build. I want to know what responsible for the high pitched, quick revving sound of the 26b motors used in the mazda 4 rotor race cars such as the 787b car. These cars rev like high performance sport bikes. I was expecting this type sound/quick rev from the falking our rotor here. Perhaps it has something to do with tuning or perhaps the 787b uses a superlight flywheel.
Pleases enlighten me guys.
Pleases enlighten me guys.
02-10-17, 11:09 AM
#998
Facebook Post
Thank you guys so much for sticking by and keeping the motivation up. Anyone that would like to go for a ride or is in the area and would like to meet up/talk rotaries, please message me anytime! Walker's work is doing well, car seems to hold boost perfectly, at least up to 6k rpm, staying below 8psi with 7psi springs. More coming, alot of work to do to get it on the track/videos.
Last edited by Monsterbox; 02-10-17 at 11:47 AM.
