C 25 fuel.

Kdw1403 · 10-24-2023, 03:21 PM

I normally run Renagade 110 fuel. Because of price and readily available where I buy it. With all things being equal is 25 faster for heads up runs? I run stock eliminator. 350 cu inch.

Adger Smith · 10-24-2023, 03:48 PM

Too many Variables for a blanket answer.
Your engine may not like the makeup of that fuel.
It may slow you down.

Darcy Clarke · 10-25-2023, 10:39 AM

I have ran C25 with great results my SuperStocker Loves it but it has significant compression. The only way to find out is to give to the track with a couple of pails and test changing timing and jetting to optimize. For me in my Stocker I run it at Indy with good results and in My SuperStocker with great results. Good luck with your testing!

Darcy Clarke
6254 A/SA SS/EA

Alan Roehrich · 10-29-2023, 01:37 PM

You cannot simply pour in a different fuel and expect to go faster.

C-25 has a faster burn rate. It requires less timing, etc, than C-12, C-14, etc. It also requires a different A/F ratio. And it won't necessarily automatically generate the same or the correct A/F ratio for your engine. It will require serious tuning. It probably won't do anything for a lower compression (below 11.5:1) engine.

10-24-2023, 03:21 PM	#1
Kdw1403 Member Join Date: Nov 2016 Posts: 205 Likes: 49 Liked 68 Times in 22 Posts	C 25 fuel. I normally run Renagade 110 fuel. Because of price and readily available where I buy it. With all things being equal is 25 faster for heads up runs? I run stock eliminator. 350 cu inch.

10-24-2023, 03:48 PM	#2
Adger Smith VIP Member Join Date: Dec 2001 Location: Texarkana Ark/TX Posts: 2,446 Likes: 575 Liked 880 Times in 311 Posts	Re: C 25 fuel. Too many Variables for a blanket answer. Your engine may not like the makeup of that fuel. It may slow you down. __________________ Adger Smith (Former SS)

10-25-2023, 10:39 AM	#3
Darcy Clarke Member Join Date: Mar 2008 Posts: 201 Likes: 22 Liked 511 Times in 35 Posts	Re: C 25 fuel. I have ran C25 with great results my SuperStocker Loves it but it has significant compression. The only way to find out is to give to the track with a couple of pails and test changing timing and jetting to optimize. For me in my Stocker I run it at Indy with good results and in My SuperStocker with great results. Good luck with your testing! Darcy Clarke 6254 A/SA SS/EA

10-29-2023, 01:37 PM	#4
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,111 Likes: 1,570 Liked 1,812 Times in 413 Posts	Re: C 25 fuel. You cannot simply pour in a different fuel and expect to go faster. C-25 has a faster burn rate. It requires less timing, etc, than C-12, C-14, etc. It also requires a different A/F ratio. And it won't necessarily automatically generate the same or the correct A/F ratio for your engine. It will require serious tuning. It probably won't do anything for a lower compression (below 11.5:1) engine. __________________ Alan Roehrich 212A G/S