.497 cam
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Cruiser
Joined: Jan 2011
Posts: 138
Likes: 4
From: South Carolina
I had to stick with the 496's for when I swap over to alcohol. A bigger cam causes my intake to start icing up. The swap to alcohol is fairly easy not having to change cams.
For running gas I get by with 93 octane just fine. With good solid numbers, upper 90's hp and lower 90's torque.
Once I started tuning my octane (mixing my own fuel) rating to my compression ratio is when my motor really came alive. When I want to play I run about a 100+ octane. For a 11.1 like yours, 104+ is recommended.
I gain about 10hp /10ftlbs on the top with alcohol. The motor runs a lot cooler too.
PS: Cams with out head work is a waste...........
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For running gas I get by with 93 octane just fine. With good solid numbers, upper 90's hp and lower 90's torque.
Once I started tuning my octane (mixing my own fuel) rating to my compression ratio is when my motor really came alive. When I want to play I run about a 100+ octane. For a 11.1 like yours, 104+ is recommended.
I gain about 10hp /10ftlbs on the top with alcohol. The motor runs a lot cooler too.
PS: Cams with out head work is a waste...........
.
Ultimate HDF Member
Joined: Mar 2008
Posts: 7,604
Likes: 38
From: Landrum, SC , elevation 986'
I run 93 octane on the street for a few hundred miles a week. With no issues at all. Seven of us are going to Utah in August, 3800 miles round trip. I've road it to my parents in Upstate NY around 1800 miles round trip. The wife and I ride to charleston once a year and that 450 miles round trip.
By myself I get 17 to 32mpg, with the wife on I get about 48mpg.
Sometimes I'll run mixed gas on the street when I have some left over from the track.
I never run alcohol on the street. That setup is WOT only.
By myself I get 17 to 32mpg, with the wife on I get about 48mpg.
Sometimes I'll run mixed gas on the street when I have some left over from the track.
I never run alcohol on the street. That setup is WOT only.
Road Captain
Joined: May 2007
Posts: 713
Likes: 2
From: Pa.
Well I sent an e-mail to Zippers and NRHS, got a reply form Zipper's. They state I need some stock 883 heads. I am assuming these need to be EFI. Made a new thread addressing this question as well. Why cant they use my 1200 heads(EFI) off my nightster? Course if they have to be 883 EFI heads it would be good that I could get all the parts and have them done and then proceed to modify when I am ready for the bike to be down a week.(now is good, but yet...no) Now would be good, but I got a home project to finish first.Where in Z heck could you find a pair of 883 EFI heads, and why wouldnt 1200 efi heads work just as well? I want to know......!
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