Premix for racing - Page 2 - RX8Club.com



RX-8 Racing Want to discuss autocrossing, road-racing and drag racing the RX-8? Bring it here. This is NOT a kills/street racing forum.

Reply
 
 
 
Thread Tools Search this Thread Rate Thread
Old 08-22-2006, 12:22 PM   #26
Registered
iTrader: (2)
 
Join Date: Oct 2003
Location: Portland OR
Posts: 1,666
Thanks: 0
Thanked 0 Times in 0 Posts
Try a shop that sells/services off-road motorcylces, ATVs, or snowmobiles.
GeorgeH is offline   Reply With Quote
Old 08-22-2006, 02:35 PM   #27
Registered User
 
Join Date: Aug 2005
Location: Gaithersburg, MD
Posts: 83
Thanks: 0
Thanked 0 Times in 0 Posts
^
what he said. I picked up some yesterday from a local Yamaha dealership.
tomfree is offline   Reply With Quote
Old 07-17-2017, 03:28 PM   #28
New Member
 
Join Date: May 2017
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
purple power premix

sadly i purchased royal purple 2 cyl to premix before reading this thread. what it sounds like is that the reason not to use is because it'll clog the cat. thing is, I have a black halo racing catless midpipe on my 8 so I was wondering (I'm going to buy idumetsiu after I post this) but could i get away with using the two bottles of rp for the time being?
phuture is offline   Reply With Quote
Old 07-17-2017, 03:47 PM   #29
Mod is as Mod does.
iTrader: (1)
 
StealthTL's Avatar
 
Join Date: Mar 2003
Location: WAAaaay North....
Posts: 7,108
Thanked 21 Times in 19 Posts
Royal Purple HP is pretty good for a marine oil, I'd use it up as a 50/50 mix with a better lube....
StealthTL is offline   Reply With Quote
Old 07-17-2017, 05:31 PM   #30
////////zoom
 
wannawankel's Avatar
 
Join Date: Nov 2009
Location: Ohio
Posts: 899
Thanked 24 Times in 21 Posts
Any good JASO FC or FD rated 2-cycle oil is fine. Lucas SemiSyn 2-Stroke (FC matches but not officially rated; Amazon has best price of $30/gallon) or Mystic JT4 (FD rated).
wannawankel is online now   Reply With Quote
Old 07-17-2017, 07:24 PM   #31
Registered
 
Join Date: Jan 2013
Posts: 156
Thanks: 0
Thanked 7 Times in 6 Posts
I run Motul 710 2T

JASO FD
lOOkatme is offline   Reply With Quote
Old 07-28-2017, 06:59 PM   #32
Registered
 
Join Date: Jun 2017
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Pre-mix

I use the redline synthetic race 2 stroke and mix at 2 oz/gallon. Lower octane will slightly improve power and the extra lubrication doesn't hurt.
jwilless is offline   Reply With Quote
Old 07-28-2017, 10:23 PM   #33
Mod is as Mod does.
iTrader: (1)
 
StealthTL's Avatar
 
Join Date: Mar 2003
Location: WAAaaay North....
Posts: 7,108
Thanked 21 Times in 19 Posts
Quote:
Originally Posted by jwilless View Post
Lower octane will slightly improve power ..........
This is an ancient fallacy, common in the interwebs - octane is in NO WAY related to the 'power' in a gasoline.

I have made gasoline for a major oil company, for over 30 years - I could make you a tank of 150 'octane' fuel, or a batch of 75.....and either could have more 'power' depending on my blend.
StealthTL is offline   Reply With Quote
Old 07-29-2017, 06:41 AM   #34
Registered
 
Join Date: Jun 2017
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Gasoline Energy

I'm not saying there is more power or less power in any octane gasoline but the rotary combustion chamber geometry and rotor speed seems to respond positively to lower octane fuel. I have not personally tested this on a dyno in a scientific way but others have over the years.
jwilless is offline   Reply With Quote
Old 07-29-2017, 09:27 AM   #35
Koi no Ousama
iTrader: (25)
 
TeamRX8's Avatar
 
Join Date: Apr 2005
Posts: 20,423
Thanks: 0
Thanked 232 Times in 191 Posts
We've heard it all before, numerous times. Usually by people who don't really know what they're talking about.
TeamRX8 is online now   Reply With Quote
Old 07-31-2017, 08:27 PM   #36
Registered
 
Join Date: Jun 2017
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by TeamRX8 View Post
We've heard it all before, numerous times. Usually by people who don't really know what they're talking about.
Is there anyone out there with data on this subject?
jwilless is offline   Reply With Quote
Old 07-31-2017, 10:26 PM   #37
Koi no Ousama
iTrader: (25)
 
TeamRX8's Avatar
 
Join Date: Apr 2005
Posts: 20,423
Thanks: 0
Thanked 232 Times in 191 Posts
clearly not you

The spec fuel for the Formula Pro Maxda with Renesis 6-port was 95 octane with premix from VP, not sure what it is now, but I doubt there was premixing just to get octane lower and that's why they removed the OMP as part of their mad skills to get more power
TeamRX8 is online now   Reply With Quote
Old 07-31-2017, 10:27 PM   #38
Put it in "H"!
iTrader: (1)
 
Loki's Avatar
 
Join Date: Jun 2009
Location: Montreal
Posts: 3,112
Thanked 97 Times in 90 Posts
Quote:
Originally Posted by jwilless View Post
Is there anyone out there with data on this subject?
The US Army...
https://www.arl.army.mil/www/default...al_report=6149

Happy reading
Loki is online now   Reply With Quote
Old 07-31-2017, 10:55 PM   #39
Koi no Ousama
iTrader: (25)
 
TeamRX8's Avatar
 
Join Date: Apr 2005
Posts: 20,423
Thanks: 0
Thanked 232 Times in 191 Posts
A paper speculating on how to spend a multi-trillion dollar military budget researching ideas
TeamRX8 is online now   Reply With Quote
Old 08-01-2017, 12:00 AM   #40
Put it in "H"!
iTrader: (1)
 
Loki's Avatar
 
Join Date: Jun 2009
Location: Montreal
Posts: 3,112
Thanked 97 Times in 90 Posts
Quote:
Originally Posted by TeamRX8 View Post
A paper speculating on how to spend a multi-trillion dollar military budget researching ideas
Around page 15 it gets into engineering.
Loki is online now   Reply With Quote
Old 08-01-2017, 03:13 AM   #41
Koi no Ousama
iTrader: (25)
 
TeamRX8's Avatar
 
Join Date: Apr 2005
Posts: 20,423
Thanks: 0
Thanked 232 Times in 191 Posts
A hyped up, theoretical-based paper aimed at winning a financial contract and eventual reality are not the same thing. Never mind that its not gasoline or ethanol based, is fixed rpm, and the the design concepts otherwise being discussed there are not relevant to either the Renesis or 13B automotive engines. If you go to the summary the coulda-shoulda-woulda is very apparent. I suppose you're still filled with enthusiastic zeal after reading the Renesis SAE paper for the umpteeth time despite the reality documented on the forum.
TeamRX8 is online now   Reply With Quote
Old 08-01-2017, 04:31 AM   #42
Put it in "H"!
iTrader: (1)
 
Loki's Avatar
 
Join Date: Jun 2009
Location: Montreal
Posts: 3,112
Thanked 97 Times in 90 Posts
I'm not sure we're talking about the same paper. Dod you only read the summary? This one includes transparent engine photography, pressure and flame front data, for multiple combustion chamber shapes. It also goes into some depth about apex seal behavior, with data. The majority of sourced articles are from automotive applications.

If you have some better source that answers the question posed above, please bring it.

Last edited by Loki; 08-01-2017 at 04:35 AM.
Loki is online now   Reply With Quote
Old 08-02-2017, 01:34 PM   #43
Koi no Ousama
iTrader: (25)
 
TeamRX8's Avatar
 
Join Date: Apr 2005
Posts: 20,423
Thanks: 0
Thanked 232 Times in 191 Posts
I read the whole thing. Did you write it, lol. A lot of it is just bits and pieces cut & pasted together from a wide range of sources. I thought it was mostly a bs con job, but that's just my opinion as a mechanical engineer with a critical eye and a very sensitive bs detector. Experience and age have made me a weary cynic ...

plus you didn't even address my points or how any of your own relate to our engines relative to this discussion. The application and operating conditions are substantially different. Please see my comment in Post #35 ...



.

Last edited by TeamRX8; 08-02-2017 at 02:51 PM.
TeamRX8 is online now   Reply With Quote
Old 08-03-2017, 10:10 PM   #44
////////zoom
 
wannawankel's Avatar
 
Join Date: Nov 2009
Location: Ohio
Posts: 899
Thanked 24 Times in 21 Posts
Just buy JASO FD rated Lucas 2-Stroke SemiSynthetic premix on Amazon. Any JASO FC or FD rated 2-stroke oil will do.
wannawankel is online now   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Swap to end all swaps galognu Rotary Swaps 100 01-11-2018 05:26 PM
COBB AccessPort Hunterkelley24 Series I Engine Tuning Forum 8 10-14-2017 11:36 PM
Is there a better 2 cycle oil that you don't have to order? Digitz0070 Series I Aftermarket Performance Modifications 55 07-25-2017 09:40 PM
RAYS VOLK Racing CE28N - 18x9.5 +28mm 5x114.3 Limited Edition RAVSPEC Vendor Classifieds 0 10-01-2015 02:59 PM
My Rx8, strange Noice (Whistle) no Belt. tommy26Germany Series I Trouble Shooting 11 09-29-2015 11:33 AM


Tags
20w, 50havoline, oil, racing

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 11:56 PM.


All content Copyright 2017 by Internet Brands, Inc. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.