Bracket Talk
High speed lean out

This topic can be found at:
https://drr.infopop.cc/eve/forums/a/tpc/f/80760912/m/5967093307

May 27, 2026, 12:34 PM
00 DEAD ON
High speed lean out
Who is running a high speed lean out with the Ron’s terminator. How does it work for your application? Did you see any ET difference?
Thx in advance


Brian Mollison
2013 American Dragster
2020 Sumerduck Dragway VA Top ET Champion
2017 Sumerduck Top ET & SSS Track Champion
2017 MAC Top ET Track Champion
2009 Sumerduck Dragway Va Top ET & IHRA SSS Track Champion
2008 IHRA Division 1 Top ET Bracket Final Runner-up
2007 Colonial Beach Dragway Top ET Track Champion
May 27, 2026, 02:28 PM
Alaskaracer
I have one but haven't used it yet. May have to though, if I put it on I'll let you know. James told me last time I talked to him about it that it's worth about .03-.05 et and 1-3 mph depending on your setup.

Still wondering what's happened to him, reached out to him several times and he's never responded back.


Mark Goulette
Owner/Driver of the Livin' The Dream Racing dragster
www.livinthedreamracing.com
"Speed kills but it's better than going slow!"
Authorized Amsoil Retailer
May 28, 2026, 04:12 AM
ssdoug
I called James last week for some parts no problem.
May 28, 2026, 02:07 PM
00 DEAD ON
Thanks Mark I’d appreciate it. I just ordered mine. Should have it next week. How is yours set up?


Brian Mollison
2013 American Dragster
2020 Sumerduck Dragway VA Top ET Champion
2017 Sumerduck Top ET & SSS Track Champion
2017 MAC Top ET Track Champion
2009 Sumerduck Dragway Va Top ET & IHRA SSS Track Champion
2008 IHRA Division 1 Top ET Bracket Final Runner-up
2007 Colonial Beach Dragway Top ET Track Champion
May 28, 2026, 03:04 PM
Alaskaracer
Sent you a pm Brian.


Mark Goulette
Owner/Driver of the Livin' The Dream Racing dragster
www.livinthedreamracing.com
"Speed kills but it's better than going slow!"
Authorized Amsoil Retailer
May 29, 2026, 09:47 AM
Curly1
For 1/8 mile racing they do not do much. I run 8 O2 sensors and able to get mixture perfect between all cylinders and honestly with alcohol it does not make much difference as long as it is pretty close.


https://postimg.cc/gallery/np3zpruo/
"Dunning-Kruger Effect"
-a type of Cognitive bias where people with little expertise or ability assume they have superior expertise or ability. This overestimation occurs as a result of the fact that they do not have enough knowledge to know they don't have enough knowledge.

Before you argue with someone ask yourself, "Is this person mentally mature enough to grasp the concept of a different perspective?" If not there is no point to argue.

4X NE2 CHAMPION. 2020 TDRA NE2 Champion
June 01, 2026, 11:48 AM
Triple Nickel
I've seen more ET impact on blown applications than on NA motors. Like James says its worth something how much depends on the setup. Getting them to turn on at the right RPM matters so that spring adjustment to get the activation RPM correct can be challenging. Then how do you verify its on if you don't see ET improvement or drop off? I've seen 25-30 hp on a NA 565, but zero improvement on an NA 615 with 20 degree heads. It all depends on what the combination wants/needs to be most efficient.
June 01, 2026, 05:41 PM
rusty
it makes egts look better


thank you, president Trump
June 02, 2026, 09:10 AM
Big Steve
Using an electronic lean out solenoid and turning it on with a timer in the 1/8 mile I didnt see any real improvement, it will take some testing to get the best pill and total pill area of circle for your combo.

The best results by far is turning it on while on the 2 step to prevent loading up the cylinders, engine leaves cleaner and worth a couple of hun on the 60 foot.
June 02, 2026, 10:51 AM
Triple Nickel
Big Steve, same here on the electric version.
June 03, 2026, 09:15 AM
wideopen231
High speed LO mostly effective for top ion and as said not lot in 1/8. Also as said it depends a lot on combo. I have run them in everyb form imaginable. Etric will give you consitent timeing. if run old school pressure one jet change will alter it some.Of coarse can combine the two.

I have one plumbed on car for testing at some point. Not expecting a lot.

Another good thing with lectric is can use to build heat if need. Simple wiring and switch added in like 3 pos. toggle.




America home of free. Brought to you by 2nd amendment.