tuning a methanol engine

Paul Bouchard · 05-08-2008, 06:31 PM

I'm building a B/B Chev and using a Holley HP 1050 dominator methanol carb. Does anyone have some tuning tips to start off with, such as timing, EGT's, spark plug heat ranges? I race at altitudes over 3000 ft. Thanks.

Barney B · 05-11-2008, 03:17 PM

I run a 548ci BBC, NGK 4554 plugs, 33 to 34* timing 1150 APD carb w/188 jets.
BB hope this helps.

Natural Disaster · 05-12-2008, 10:19 PM

the easiest way to tune them is judging by the EGTs you want tothem to be close to 1250 if i remember correctly. but the 188s is probably where you will end up or close just remember a lot of people cover up their problems using bigger jets and giving the motors more fuel.

dak · 05-14-2008, 11:53 PM

I work for 1140 deg F... EGT's do rely on placement of the probe in the header. how far they go in and how far they are from the port. Looking at the plugs is also a good idea. You may find the plugs look good, the motor repeats and you are not at the optimum EGT..

05-08-2008, 06:31 PM	#1
Paul Bouchard Junior Member Join Date: Apr 2008 Posts: 1 Likes: 0 Liked 0 Times in 0 Posts	tuning a methanol engine I'm building a B/B Chev and using a Holley HP 1050 dominator methanol carb. Does anyone have some tuning tips to start off with, such as timing, EGT's, spark plug heat ranges? I race at altitudes over 3000 ft. Thanks.

05-11-2008, 03:17 PM	#2
Barney B Senior Member Join Date: Apr 2006 Location: Wadsworth, Ohio Posts: 510 Likes: 0 Liked 0 Times in 0 Posts	Re: tuning a methanol engine I run a 548ci BBC, NGK 4554 plugs, 33 to 34* timing 1150 APD carb w/188 jets. BB hope this helps.

05-12-2008, 10:19 PM	#3
Natural Disaster Junior Member Join Date: Jul 2007 Posts: 7 Likes: 0 Liked 0 Times in 0 Posts	Re: tuning a methanol engine the easiest way to tune them is judging by the EGTs you want tothem to be close to 1250 if i remember correctly. but the 188s is probably where you will end up or close just remember a lot of people cover up their problems using bigger jets and giving the motors more fuel.

05-14-2008, 11:53 PM	#4
dak Junior Member Join Date: Mar 2003 Location: west coast Posts: 26 Likes: 0 Liked 0 Times in 0 Posts	Re: tuning a methanol engine I work for 1140 deg F... EGT's do rely on placement of the probe in the header. how far they go in and how far they are from the port. Looking at the plugs is also a good idea. You may find the plugs look good, the motor repeats and you are not at the optimum EGT..