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Dose anyone know who dose 4 rotors and how much $$$$ and N/A power figures???
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i saw a place a while ago that sold 600 hp 4-rotors, but they were expensive as hell. the 3-rotor 300 hp engines were $8900, so i'd imagine the 4's would cost 12-15k. they also sold some 900 horsepower 6-rotors, but i wouldn't bother with one of those, you'd get no gas-mileage.
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Originally Posted by Jeff20B' post='805543' date='Mar 3 2006, 12:39 AM
Has anyone called and got a price yet? |
Originally Posted by Brian S.' post='805626' date='Mar 3 2006, 01:17 PM
i saw a place a while ago ... they also sold some 900 horsepower 6-rotors ... |
Yea i can sort out some 4 rota prices next week.
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we do 3 types (1) pp, (2) side port, (3) turbo
the hp is (1) 600hp, and with nos 800hp (2) 400hp, and with nos 700hp (3) 1450hp prices r as follow (and with out nos inc) (1) $28,000.00 NZD (2) $24,000.00 NZD (3) $40,000.00 NZD with (3) you can have either twin or single turbo set ups |
Originally Posted by D.R.S' post='805704' date='Mar 3 2006, 09:59 PM
we do 3 types (1) pp, (2) side port, (3) turbo
I wanna see the 4 rotors you, "we", work with. And whos buying them. |
how we r we r DEMON ROTORSPORT here in (NZ) i will post up the latest 4rotor 12a tht we r doing for a custerma tht is going into a mazda 323 but ths will b th last 12a quad rotor as mazda has stop production of 12a and rx4,5 13b housings an also we r/d a 6rotor tht will jst for drag raceing only we know tht hurly in th uk has done one so we will c wht happens on ths
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Originally Posted by D.R.S' post='805917' date='Mar 4 2006, 06:40 PM
... also we r/d a 6rotor tht will jst for drag raceing only we know tht hurly in th uk has done one so we will c wht happens on ths |
i mean tht th shaft is beening made now as we have fig out on how to stop th shaft from flexing and we have work out the cooling and oiling an bracing as it is a drag engine we will be useing meth,nos, and pos of 3 turbos as it is going into our own drag car for testing and after we sort out the demons as you might say we will offer a full package eg: engine,trans,diff ratio,
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Has anyone called and got a price yet? |
Originally Posted by D.R.S' post='805704' date='Mar 3 2006, 06:59 PM
we do 3 types (1) pp, (2) side port, (3) turbo the hp is (1) 600hp, and with nos 800hp (2) 400hp, and with nos 700hp (3) 1450hp prices r as follow (and with out nos inc) (1) $28,000.00 NZD (2) $24,000.00 NZD (3) $40,000.00 NZD with (3) you can have either twin or single turbo set ups Are you serious? You shouldn't be advertising with speculated figures. You need to prove these figures and I'm willing to bet you can't produce dyno sheets. There are only two running 4rotor engines in nz and I know the owners of both. You need to do a serious amount of testing before you sell engines like this. |
If anyone is after the custom components needed for a short crank 3rotor engine or a 4rotor engine call Jeff Bruce at Precision Engineering, NZ 09 4153264. Not only are his cranks being used worldwide he also mods center plates to hold stationary gears and makes the longer through bolts & dowels.
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Essentially they need to do the whole block as all the irons and rotor housings need modding for extra dowels.
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Originally Posted by diabolical1' post='805662' date='Mar 3 2006, 05:34 PM
a "functioning" 6-rotor? the only one i'd ever read about was non-functional. i think it was somewhere in Britain. anyway, do you have a link? i'm pretty sure that it was functional. i can't find the place anymore, unfortunately. i spent 45 minutes looking for the site, and couldn't find it. |
The Hurley 6 port? Look for Hurley and/or HME.
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It's a shame really that my first post on this wonderful forum is to bag another member...
Please don't listen to DRS he is a well known shyte-talker on NZ forums. P.S. I didn't join just to say that, I joined a while back https://www.nopistons.com/forums/pub...DIR#>/wink.png Thanks all |
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you have to be a member to see the pics. can someone post them here
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hmm somehow i dont think "DRS" is actually speaking on behalf of demon rotorsport in NZ. I have heard nothing but good things from customers and as a reputable business i dont think they would be making such outrageous claims. Maybe "DRS" should concentrate on his/her spelling and wording of posts before anyone takes them seriously. Just my two cents
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Hmm, would I buy an experimental engine from someone who can't even operate a keyboard? Let's hope he's not really associated with any professional rotary shops...
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For some reason i can't upload the pics, anyone that want to put them up pm me your E-mail and i'll send them you.
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Originally Posted by Grizzly' post='810358' date='Mar 28 2006, 03:48 AM
For some reason i can't upload the pics, anyone that want to put them up pm me your E-mail and i'll send them you. |
I have been saving up for a 4 rotor for about a year now and I'm ready to start the project so I spoke to someone at Kiwi-re on Sunday about ordering their 4 rotor kit, which is basically all the "special parts" needed:
The 4 rotor kit has the following:- 1:- Eccentric Shaft 2:- Front counter weight 3:- Rear counter weight 4:- 2 x Centre plates 5:- 2 x Stationary gears (modified) 6:- 2 x Stationary gear carriers 7:- 2 x Stationary gear external oiling mods 8:- Rear main nut 9:- 2 x eccentric shaft end caps This kit is built with all new parts and also uses genuine Mazda parts. I was quoted 9500 NZ plus shipping and about a 6 week lead time. The only thing I'm stumbling on is PP housings, which cost about 1750 NZ each...which equals about 1100 us each. Granted they are new housings which arent cheap, but I dont know whether I can have good/used housings p ported state-side for less, and and who can do it https://www.nopistons.com/forums/pub...IR#>/dunno.gif BTW, I was told that they built the one that is in the red FD in NZ website: www.kiwi-re.com |
Call Jeff Bruce at Precision Engineering, NZ 09 4153264. He makes the shaft , modifies the side plates to take stat gears dowels and pp's the rotor housings. Kiwi re just gets the bits and adds there 150% markup.
I spoke to Jeff about a week ago , and there is a US agent that sells the stuff , but i forget who he said it was. |
Last time i had housings p ported it was $350 nz each + new housing.
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Originally Posted by Danomite' post='818344' date='May 9 2006, 06:55 PM
I have been saving up for a 4 rotor for about a year now and I'm ready to start the project so I spoke to someone at Kiwi-re on Sunday about ordering their 4 rotor kit, which is basically all the "special parts" needed: The 4 rotor kit has the following:- 1:- Eccentric Shaft 2:- Front counter weight 3:- Rear counter weight 4:- 2 x Centre plates 5:- 2 x Stationary gears (modified) 6:- 2 x Stationary gear carriers 7:- 2 x Stationary gear external oiling mods 8:- Rear main nut 9:- 2 x eccentric shaft end caps This kit is built with all new parts and also uses genuine Mazda parts. I was quoted 9500 NZ plus shipping and about a 6 week lead time. The only thing I'm stumbling on is PP housings, which cost about 1750 NZ each...which equals about 1100 us each. Granted they are new housings which arent cheap, but I dont know whether I can have good/used housings p ported state-side for less, and and who can do it https://www.nopistons.com/forums/pub...IR#>/dunno.gif BTW, I was told that they built the one that is in the red FD in NZ website: www.kiwi-re.com As Nospig said don't go thru Kiwire, deal with Precision Engineering direct and save yourself a lot of $. On top of the parts listed you'll need long thru bolts and dowels, Precision Eng makes these also. You'll also need an external oil pump, either wet or dry sump. Those housings are a hideous price, new housings are only about 550nzd each and I charge 400nzd each housing to sleeve and port, inlet & exhaust. If you want pics pm me. I'll be building a 4rotor PP for a customer in the next few months. Kiwi re did not build the 4rotor in the red FD, the owner built it himself. They're good at taking credit for other peoples engines. |
I should add that not only did the owner of the red FD build the engine himself, he also did most of the machining with Precision Engineering only finishing the crank and a couple of other bits. He's very talented engineer (in fact they both are) and his is the first really successfull 4rotor engine I know of outside of Mazda. To date the FD has run a 9.9, it runs on pump gas and is untubbed, its also street legal.
Credit where credit is due. |
thanks for the heads-up guys...I have been wondering why the cost has gone from 4500 to 9500 in the last year. I will be calling Jeff this evening!
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Originally Posted by Danomite' post='818407' date='May 10 2006, 10:23 PM
thanks for the heads-up guys...I have been wondering why the cost has gone from 4500 to 9500 in the last year. I will be calling Jeff this evening! |
Originally Posted by Nospig' post='818380' date='May 9 2006, 11:02 PM
Call Jeff Bruce at Precision Engineering, NZ 09 4153264. He makes the shaft , modifies the side plates to take stat gears dowels and pp's the rotor housings. Kiwi re just gets the bits and adds there 150% markup. I spoke to Jeff about a week ago , and there is a US agent that sells the stuff , but i forget who he said it was. Well I talked to Jeff and he just wants me to email him what I want and he'll give me some prices. I dont know whether he was just having a bad day, or mabey just really busy, but he did'nt really seem to want to talk much which I can understand. He rattled off a bunch of prices and I couldnt hear or understand him that well. Also mentioned something about building an older series motor, something to do with the water seal location in the side plates and port configuration. The only engine I have any experience with is series 6 so now I'm a bit more confused... we'll see whether I can get on the same page as him. |
Back in the day, Mazda had the coolant seal grooves in the rotor housings and not the side irons..
Perhaps he's had better experiences with assembly of the motor with the grooves moved? |
So I talked to Steve Kahn today about driveability, tunability, etc for a PP 4rotor and he didnt really feel that such an agressive port would be very well mannered at low throttle, which makes sense, which makes me wonder about the whole setup now. I would like the ability to be able to just cruse around from time to time...
decisions, decisions...I could just throw a big single on there at low boost for a moderate 700 hp or so, which might actually make the build a lot easier. |
Originally Posted by cdaleracer669' post='810108' date='Mar 25 2006, 11:11 PM
you have to be a member to see the pics. can someone post them here
Ask and ye shal recieve. |
Originally Posted by Danomite' post='818756' date='May 11 2006, 07:42 PM
So I talked to Steve Kahn today about driveability, tunability, etc for a PP 4rotor and he didnt really feel that such an agressive port would be very well mannered at low throttle, which makes sense, which makes me wonder about the whole setup now. I would like the ability to be able to just cruse around from time to time... decisions, decisions...I could just throw a big single on there at low boost for a moderate 700 hp or so, which might actually make the build a lot easier. 4-rotor just has the uber-cool factor going for it. Other than that for 700whp a 3-rotor side port with a single would be more economical. You'd have better driveability and reliability should be good if the tune is good. |
Originally Posted by C. Ludwig' post='818840' date='May 12 2006, 05:15 AM
4-rotor just has the uber-cool factor going for it. Other than that for 700whp a 3-rotor side port with a single would be more economical. You'd have better driveability and reliability should be good if the tune is good. how do you figure? after buying a 3rotor, rebuilding it, getting a single setup, ecu and such you would spend just as much or more money. plus the reliability of a N/A rotary compared to forced induction is worth any extra cost in my opinion. they should both weigh about the same too. and it's not like a 20b is a stright drop in in an fd, so custom fabrication is required for both. We will be building one of these for our shop to run in the gumball 3000 next year https://www.nopistons.com/forums/pub...#>/biggrin.png |
Can you fit enough radiator in an FD to run 2 13b's?
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Cooling capacity is a function of output more than displacement.
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There are a couple of stumbling blocks for the whole 4rotor thing, one: what ecu will control eight injectors, and run split timing, and two: the only porting option is a P port since there are two intermetiate housing, both of which have only primary ports.
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