Rotaries?

For any discussion about the club as an organization
Anonymous

Rotaries?

Postby Anonymous » Thu Jan 04, 2007 7:17 pm

[img]http://kmoddl.library.cornell.edu/biogr ... ankel.jpeg[/img]
How do they fit in the displacement scheme? I heard someone else talk about multiplying by 2. So a 1.3L Wankel would be equivalent to a 2.6L piston engine.

So unless those Rx-8's signed up for the next event are turbo they don't have to run in the +3.0L class, I guess no one is going to stop you from bumping your car up a class though.
Freakin' Drew
Notorious
Drives: Bewsted and 'squirted
User avatar
Location:
Tampa, Florida
Joined: December 2006
Posts: 939
First Name: Freakin'
Last Name: Drew
Favorite Car: Bewsted and 'squirted
Location: Tampa, Florida

Postby AScoda » Fri Jan 05, 2007 7:01 am

A thought:
One rotor wankels in under 3L class.
Two rotor wankels in over 3L.
Loren wrote:Freakin' Drew and his freakin' Mustang. :no:
dan wrote:Freakin' Drew and his freakin' Miata.
Rawkkrawler wrote:Freakin’ Drew and his OTHER freakin’ Mustang!
---------- ----------
Notorious
Drives: Whatever has more miles than anything on the grid
User avatar
Location:
Just within reach of storm surge
Joined: December 2006
Posts: 2308
First Name: ----------
Last Name: ----------
Favorite Car: Whatever has more miles than anything on the grid
Location: Just within reach of storm surge

Postby Jamie » Sat Jan 06, 2007 3:20 pm

You'd have to go back quite awhile to find a one-rotor Wankel in a U.S.-market car...any NSUs over here? And it seems that 3 and 4-rotor rotaries are pretty rare engines.

Looking at other clubs' rulesets, the math seems to be rotary displacement x 2 x # of rotors...which pushes everything beyond the early 12A-powered cars into the 3 liters and up category unless they're turbocharged. I'm not sure I'm ready to throw a torque-challenged 13B-powered car to the wolves, so I want to do some additional research.

Suggestions are welcome, but I need to make a decision by Tuesday night...I'll be on travel again Wednesday and Thursday, and may not have Net access.
Jamie
'01 Miata, '92 Prelude Si, '88 Alpina B10/3.5, '63 Suburban
Speed Demon Racing
Steve --
Forum Admin
Drives: whatever I can get my hands on
User avatar
Location:
St. Pete
Joined: November 2006
Posts: 5122
First Name: Steve
Last Name: --
Favorite Car: whatever I can get my hands on
Location: St. Pete

Postby Native » Sun Jan 07, 2007 9:49 am

A quick review of last year's results showed this:

Dec - RX8 finished 33rd. 7th of 10 in D. In my mostly stock Miata, my time was faster.

Nov - RX8 finished 9th, 17th. 1st ,3rd/4 in D. I wasn't there.

Sept - RX8 finished 19, 31. 6,11/11. My time was faster.

Aug - RX8 finished 16,17,34. 6,7,14/15. My time was faster.

July - 13, 27, 28, 32, 46. Not novice was 4,12/15. I got beat bad.
note - one rotary entry was an '83 RX7...

June - RX8 finished 34. 14/15. My time was faster.

Conclusion - usually I can beat an RX8 :wink: Really, I think my point is that overall, not accounting for how they may be driven, RX8s seem to be good for midpack finishes - don't see 'em as class killers even in G. Of course, if modded, turbo'd, or on race tires, move them up...
Steven Frank
Class M3 Miata
Proud disciple of the "Push Harder, Suck Less" School of Autocross
______________
I'll get to it. Eventually...
Loren Williams
Forum Admin
Drives: A Mirage
User avatar
Location:
Safety Harbor
Joined: December 2006
Posts: 13044
First Name: Loren
Last Name: Williams
Favorite Car: A Mirage
Location: Safety Harbor

Postby Loren » Sun Jan 07, 2007 10:35 am

The 2x factor for rotaries really only comes into play when they are allowed to be heavily modified. Porting, engine management and really open intake and exhaust really opens them up to crazy power and crazy high RPMs.

Since our classing is simply "mods or no mods", I think that where the line is drawn will keep the unmodified rotaries from being a major threat. Once modded, yeah, one could theoretically walk on the "Under 3L Mod" class. But, at this point, I don't think it's worth making specific rules for.

In the under 3L mod class, we allow 1.8 turbo Miatas... which can easily make 250hp and even more if they want it. I don't think a streetable NA rotary is going to be more of a problem than that.

If y'all think a pre-emptive measure is in order, I'd make it a simple: any turbocharged rotary goes in the over 3L class. Leave displacement calculation out of it.
Loren Williams - Loren @ Invisiblesun.org
The "Push Harder, Suck Less" philosophy explained:
Push Harder - Drive as close to the limit of your tires as possible.
Suck Less - Drive something resembling a proper racing line.
Rob --
Notorious
Drives: Mustang
User avatar
Location:
St. Pete Fla
Joined: December 2006
Posts: 816
First Name: Rob
Last Name: --
Favorite Car: Mustang
Location: St. Pete Fla

Postby blacksheep-1 » Mon Jan 08, 2007 6:55 am

X-tra power = 0
you guys worry too much, from what I've seen the new RX-8s are on par with the mustangs and camaros, the RX-7s on the other hand have some more potential.
---------- ----------
Notorious
Drives: Whatever has more miles than anything on the grid
User avatar
Location:
Just within reach of storm surge
Joined: December 2006
Posts: 2308
First Name: ----------
Last Name: ----------
Favorite Car: Whatever has more miles than anything on the grid
Location: Just within reach of storm surge

Postby Jamie » Mon Jan 08, 2007 9:27 pm

blacksheep-1 wrote:...from what I've seen the new RX-8s are on par with the mustangs....
In that case, no worries.... :twisted:
Jamie
'01 Miata, '92 Prelude Si, '88 Alpina B10/3.5, '63 Suburban
Speed Demon Racing
Brian --
Well-Known
Drives: 2017 WRX
Joined: December 2006
Posts: 191
First Name: Brian
Last Name: --
Favorite Car: 2017 WRX

Postby muddy » Tue Jan 09, 2007 8:32 am

That is because of the drivers. An RX8 handles much better than a mustang. In the SCCA, they are a B stock car. I don't think it is a problem, however, since we also have a A stock S2000 in the under 3L class.
Rob --
Notorious
Drives: Mustang
User avatar
Location:
St. Pete Fla
Joined: December 2006
Posts: 816
First Name: Rob
Last Name: --
Favorite Car: Mustang
Location: St. Pete Fla

Postby blacksheep-1 » Tue Jan 09, 2007 6:15 pm

the Mustang drivers, or the RX8 drivers or the cheatered up Miata drivers? :twisted: :twisted:

Return to “FAST Related”

Who is online

Users browsing this forum: No registered users and 1 guest