2013 indy ''backyardigan''

Larry Hill · 08-25-2013, 01:39 PM

I thought I would share with the forum readers the time and effort I spent trying to make enough horsepower to qualify for this years U.S Nationals.

Got to get ready for the next round.

Joe Toller · 08-25-2013, 11:09 PM

Do tell! Do tell!

Larry Hill · 08-26-2013, 11:06 AM

We made the decision to try to correct the scratches in the cyl. walls, and oil usages by going to the next size over before the Chicago race. The water in #4 was a different issue.

Call CP and Total Seal and order pistons, pins, and rings. Its mid June and ship date is end of July. It will be close to get everything done on time for Indy but I don't think I will be fast enough to make "The Show"

Larry Hill · 08-26-2013, 01:40 PM

Just after Norwalk we remove engine from car and spend a week getting parts ready to go to the dyno. Cams, heads , springs, rockers, carbs, plugs, oil, gaskets, and a host of stuff to try the next three days.

Larry Hill · 08-27-2013, 06:52 AM

I arrive at Tommy's for three days of dyno work. Frank and I have it on the pump and make our first pull before lunch, things are going well. Recheck valve lash and start tuning using Renagaid 110 for fuel. We get the engine tuned to where if timing is changed up or down it lowers power, if jetting is changed it lowers power. The best way I found to read plugs after two pulls is to chuck them in a lathe and remove the threads and ground strap. It leaves just the porcelain and what ever color the base is and its very easy to read. End of day one.

Tomorrow cam change and other stuff.

Larry Hill · 08-28-2013, 06:20 AM

Dyno day two. George Widuch is on the way to help work the engine. We make two pulls on engine to establish todays base line. Time to change the cam. We degree the cam in using our notes and our ATI damper. Using the damper and cover works well if it is checked for TDC when you have the head off and using a larger degree to establish true TDC. I checked the centerline numbers after the dyno session during disassembly and was only off a 1/2 degree.

The second cam moved the numbers up about 200 on the rpm scale, and the engine seemed to like the change.

Time to get ready to make first hit at 2013 Indy. Man am I uneasy about making the "Show"

08-25-2013, 01:39 PM	#1
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,631 Likes: 1,925 Liked 10,683 Times in 2,223 Posts	2013 indy ''backyardigan'' I thought I would share with the forum readers the time and effort I spent trying to make enough horsepower to qualify for this years U.S Nationals. Got to get ready for the next round. __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817

08-25-2013, 11:09 PM	#2
Joe Toller Senior Member Join Date: Jan 2009 Location: Lewistown, Montana Posts: 550 Likes: 78 Liked 4 Times in 4 Posts	Re: 2013 indy ''backyardigan'' Do tell! Do tell!

08-26-2013, 11:06 AM	#3
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,631 Likes: 1,925 Liked 10,683 Times in 2,223 Posts	Re: 2013 indy ''backyardigan'' We made the decision to try to correct the scratches in the cyl. walls, and oil usages by going to the next size over before the Chicago race. The water in #4 was a different issue. Call CP and Total Seal and order pistons, pins, and rings. Its mid June and ship date is end of July. It will be close to get everything done on time for Indy but I don't think I will be fast enough to make "The Show" __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817

08-27-2013, 06:52 AM	#5
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,631 Likes: 1,925 Liked 10,683 Times in 2,223 Posts	Re: 2013 indy ''backyardigan'' I arrive at Tommy's for three days of dyno work. Frank and I have it on the pump and make our first pull before lunch, things are going well. Recheck valve lash and start tuning using Renagaid 110 for fuel. We get the engine tuned to where if timing is changed up or down it lowers power, if jetting is changed it lowers power. The best way I found to read plugs after two pulls is to chuck them in a lathe and remove the threads and ground strap. It leaves just the porcelain and what ever color the base is and its very easy to read. End of day one. Tomorrow cam change and other stuff. __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817

08-28-2013, 06:20 AM	#6
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,631 Likes: 1,925 Liked 10,683 Times in 2,223 Posts	Re: 2013 indy ''backyardigan'' Dyno day two. George Widuch is on the way to help work the engine. We make two pulls on engine to establish todays base line. Time to change the cam. We degree the cam in using our notes and our ATI damper. Using the damper and cover works well if it is checked for TDC when you have the head off and using a larger degree to establish true TDC. I checked the centerline numbers after the dyno session during disassembly and was only off a 1/2 degree. The second cam moved the numbers up about 200 on the rpm scale, and the engine seemed to like the change. Time to get ready to make first hit at 2013 Indy. Man am I uneasy about making the "Show" __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817

08-26-2013, 01:40 PM	#4
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,631 Likes: 1,925 Liked 10,683 Times in 2,223 Posts	Re: 2013 indy ''backyardigan'' Just after Norwalk we remove engine from car and spend a week getting parts ready to go to the dyno. Cams, heads , springs, rockers, carbs, plugs, oil, gaskets, and a host of stuff to try the next three days. __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817