20B N/A with RX8 rotors??

***Herblenny*** · 11-19-2008, 02:46 PM

Well, I was just told that all my parts are cleaned and ready to be assembled..

But now I'm thinking.. Maybe I should go with 20B N/A??? Do anyone know if RX8 rotors could be used?? I think I've heard that you could use the RX8 rotors...

I'm now thinking about going old school and go 20B N/A Carb'd!

Whizbang · 11-19-2008, 03:01 PM

take to Logan with defined auto works in southern ohio. His FD is N/A and 20B and to the tune of 300hp

***Herblenny*** · 11-19-2008, 03:13 PM

I've seen his work and talked to the guy who helped put it together...But his is EFI NA.. I believe. My guy is whom I trust and knows quite a bit about carb... he's just not sure about Renesis rotors as he hasn't taken one apart.. i'm thinking about bringing him one this weekend to take apart and compare the rotors.

I'm also waiting to hear back from Carlos Lopez. He and I talked about this before as my builder wanted to go NA/Carb 20B... now I'm thinking it might be easier and unique...

This is the picture Carlos sent me about a year ago.. I think this is the set up I'm now considering...

RotaryProphet · 11-19-2008, 03:35 PM

My only concern with Renesis rotors is that they aren't designed to handle peripheral exhaust ports, so I have no idea how long the lighter/shorter apex seals will survive.

Brent · 11-19-2008, 03:44 PM

I bet Landers could prob. give you a pretty good idea whether or not they would work.

***Herblenny*** · 11-19-2008, 03:58 PM

Quote:

Originally Posted by RotaryProphet

My only concern with Renesis rotors is that they aren't designed to handle peripheral exhaust ports, so I have no idea how long the lighter/shorter apex seals will survive.

ahh... I didn't think about that... Hmmm..

need RX7 · 11-19-2008, 04:32 PM

Aren't you supposed to machine the rotors to use standard 13B/20B apex seals?
EDIT: Just searched evil forum and I guess it's not necessary, but I did see that the standard renesis seals warped too much on the peripheral exhaust ports so ceramics had to be used. I think if I were doing it, I'd use 13B seals. Also, the thread I saw was from 2004, so things may have changed.

I'm interested in seeing more input on this.

To_Slow · 11-19-2008, 05:11 PM

Quote:

Originally Posted by Herblenny

Well, I was just told that all my parts are cleaned and ready to be assembled..

But now I'm thinking.. Maybe I should go with 20B N/A??? Do anyone know if RX8 rotors could be used?? I think I've heard that you could use the RX8 rotors...

I'm now thinking about going old school and go 20B N/A Carb'd!

Yes you can use the rx8 rotors in an na 20b. The place i will only trust to do the rx8 rotors and has done them on numerous times. Is Roan At xtreme rotaries in Au. Trust me.. well worth the money.

Do not have shops around the state do your rotors and balance. Its a joke. Trust me, Been there done that. I'm not going mention names not that type of person.

Also the rx8 rotors will be machined to except the 13b style apex seals 2mm or 3mm.

Good luck with your project...

Dzire · 11-19-2008, 08:07 PM

RotaryProphet · 11-19-2008, 08:17 PM

Is that a 20b with renesis housings? I never gave that any thought.

warwickben · 11-19-2008, 08:28 PM

how where do you get a dizzy for a carbed 20b i was told on the evil site cant be done heck id do that any day for my sa.

Dzire · 11-19-2008, 09:21 PM

yes it is

Whizbang · 11-19-2008, 10:38 PM

only issue i heard with that is the one exhaust port. and i think intake port is smaller than the others...

RotaryProphet · 11-20-2008, 11:27 AM

Quote:

Originally Posted by warwickben

how where do you get a dizzy for a carbed 20b i was told on the evil site cant be done heck id do that any day for my sa.

http://www.rotaryshack.com/ignitions.html

warwickben · 11-20-2008, 04:21 PM

what would you guys use for carbs then ?

11-19-2008, 02:46 PM	#1
*Herblenny* Founder/Administrator/Internet Pitbull :) Join Date: Jan 2008 Posts: 644 Rep Power: 10	20B N/A with RX8 rotors?? Well, I was just told that all my parts are cleaned and ready to be assembled.. But now I'm thinking.. Maybe I should go with 20B N/A??? Do anyone know if RX8 rotors could be used?? I think I've heard that you could use the RX8 rotors... I'm now thinking about going old school and go 20B N/A Carb'd! __________________ DGRR 2013 - Year of 13B www.DealsGapRotaryRally.com http://www.facebook.com/Herblenny

11-19-2008, 03:01 PM	#2
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp Posts: 3,190 Rep Power: 21	take to Logan with defined auto works in southern ohio. His FD is N/A and 20B and to the tune of 300hp __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook

11-19-2008, 03:44 PM	#5
Brent Sua Sponte Join Date: Feb 2008 Location: Killeen, TX Posts: 839 Rep Power: 18	I bet Landers could prob. give you a pretty good idea whether or not they would work. __________________ Road Atlanta August 2011 NASA TT 1:33 http://www.youtube.com/watch?v=IFY00PAK_Ps Traqmate's video of my car from the 2011 UTCC at VIR http://www.youtube.com/watch?v=2Zcn6...layer_embedded Video of Yellow LS1 FD at NASA TT at VIR http://www.youtube.com/watch?v=e6k0lJkcwrM

11-19-2008, 04:32 PM	#7
need RX7 Clean S4 Nutswinger Join Date: Mar 2008 Location: Sterling Heights, MI Posts: 485 Rep Power: 18	Aren't you supposed to machine the rotors to use standard 13B/20B apex seals? EDIT: Just searched evil forum and I guess it's not necessary, but I did see that the standard renesis seals warped too much on the peripheral exhaust ports so ceramics had to be used. I think if I were doing it, I'd use 13B seals. Also, the thread I saw was from 2004, so things may have changed. I'm interested in seeing more input on this. __________________ -Ted -1986 Mazda RX7 Sport [DD/beater]: engine finally let go at 205k. parts car status. -1986 Mazda RX7 base [resto-mod project]: S5 n/a swap in progress. Last edited by need RX7; 11-19-2008 at 04:43 PM.

11-19-2008, 08:07 PM	#9
Dzire Rotary Fanatic Join Date: Apr 2008 Location: B,ham AL/Hollywood FL Posts: 151 Rep Power: 18	__________________ RX8 2004 GT RX7 1988 TII

11-19-2008, 03:35 PM	#4
RotaryProphet Rotary Fanatic Join Date: Sep 2008 Posts: 147 Rep Power: 17	My only concern with Renesis rotors is that they aren't designed to handle peripheral exhaust ports, so I have no idea how long the lighter/shorter apex seals will survive.

11-19-2008, 08:17 PM	#10
RotaryProphet Rotary Fanatic Join Date: Sep 2008 Posts: 147 Rep Power: 17	Is that a 20b with renesis housings? I never gave that any thought.

11-19-2008, 08:28 PM	#11
warwickben sa rat rod Join Date: Mar 2008 Location: tewksbury ma Posts: 408 Rep Power: 18	how where do you get a dizzy for a carbed 20b i was told on the evil site cant be done heck id do that any day for my sa. __________________

11-19-2008, 09:21 PM	#12
Dzire Rotary Fanatic Join Date: Apr 2008 Location: B,ham AL/Hollywood FL Posts: 151 Rep Power: 18	yes it is __________________ RX8 2004 GT RX7 1988 TII

11-19-2008, 10:38 PM	#13
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp Posts: 3,190 Rep Power: 21	only issue i heard with that is the one exhaust port. and i think intake port is smaller than the others... __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook

11-20-2008, 04:21 PM	#15
warwickben sa rat rod Join Date: Mar 2008 Location: tewksbury ma Posts: 408 Rep Power: 18	what would you guys use for carbs then ? __________________