Screamin Eagle 113 Problems HELP!!!!
Tourer
Joined: Oct 2009
Posts: 323
Likes: 2
From: Central Pennsylvania
What im worried about is the 160 psi.Thats way to low.I think a stock 96 is 180.No wonder why it pings and doesnt make power.At this point it doesnt matter about tune or injectors or throttle body.That comes to play later he needs compression.I think 98 cc heads are to big and what head gasket did they use.Also maybe a problem with the valves not closing.you said they used perfect fit push rods but do they work with that head and that head gasket?Also what about comp. releases are they disabled.Are they doing a comp. test with the TB butterfly open.Until you get the compression up or the valves closing you dont need to worry about tuning or tb size.
Ultimate HDF Member
Joined: Jan 2008
Posts: 6,532
Likes: 132
From: SoCal
What im worried about is the 160 psi.Thats way to low.I think a stock 96 is 180.No wonder why it pings and doesnt make power.At this point it doesnt matter about tune or injectors or throttle body.That comes to play later he needs compression.I think 98 cc heads are to big and what head gasket did they use.Also maybe a problem with the valves not closing.you said they used perfect fit push rods but do they work with that head and that head gasket?Also what about comp. releases are they disabled.Are they doing a comp. test with the TB butterfly open.Until you get the compression up or the valves closing you dont need to worry about tuning or tb size.
Last edited by qtrracer; Apr 19, 2011 at 11:50 AM.
Supporter
Joined: Mar 2011
Posts: 587
Likes: 1
From: Ga.
In your first post you mentioned two problems, low compression and detonation. Could be related, could be totally different problems.
As far as the compression, I don't see anywhere that you mention the leak down test that was mentioned in another reply that you try. Has this been done, and what were the results? This would rule out the rings, so I would have at least performed this.
For detonation (if it is truly pinging, pre-ignition,etc.), I am going with timing, since detonation basically has nothing to do with compression (unless it's diesel), and almost everything to do with timing. Detonation would be from not enough fuel, too advanced timing, or low octane for the advanced timing, etc.. I would check everything in the timing and also the flow of injectors? Octane can make a huge difference in the amount of timing advanced, so are you positive you have 93 or whatever is in your area.
I may be crazy (and I am) but I would start with these, since you say everything else has been double and maybe triple checked.
I see somebody ask, but I never see you mention the break-in of the rings on this brand new top end, why is this? I ask this because the rings definitely need to be seated. How many miles, everyone has a different answer for this, I like a 1000, but I would say a minimum of 500.
As far as the compression, I don't see anywhere that you mention the leak down test that was mentioned in another reply that you try. Has this been done, and what were the results? This would rule out the rings, so I would have at least performed this.
For detonation (if it is truly pinging, pre-ignition,etc.), I am going with timing, since detonation basically has nothing to do with compression (unless it's diesel), and almost everything to do with timing. Detonation would be from not enough fuel, too advanced timing, or low octane for the advanced timing, etc.. I would check everything in the timing and also the flow of injectors? Octane can make a huge difference in the amount of timing advanced, so are you positive you have 93 or whatever is in your area.
I may be crazy (and I am) but I would start with these, since you say everything else has been double and maybe triple checked.
I see somebody ask, but I never see you mention the break-in of the rings on this brand new top end, why is this? I ask this because the rings definitely need to be seated. How many miles, everyone has a different answer for this, I like a 1000, but I would say a minimum of 500.
Road Warrior
Joined: Apr 2009
Posts: 1,258
Likes: 114
From: Jackson, Ohio
I and a friend of mine installed SE stage 4 kits in '08 SG's. Mine made 127 hp at 5800 rpms and close to 125 ft lbs of torque with a D&D Boarzilla. My buddy's made just slightly less but he had a different pipe.
The kit works fine and includes 58mm TB, 5.32 injectors, 10.5 pistons, cylinders, cams (ours came with 260 cams) MVA heads, gaskets, SEST, SE clutch plate, perfect fit push rods.
IMO (actually, I listen to guys "in the know") the 266E cams needs 11 to 1 or higher compression.
It's not the kit or the components, it's something installed wrong or an extremely bad tune. TTS and SE offer several canned maps to start with so I do not know how the tune would be the problem.
I can send you a map for either a TTS or SE(P)ST you can try but they are tuned for a V&H Pro Pipe HO. The D&D pipe required more fuel everywhere.
The kit works fine and includes 58mm TB, 5.32 injectors, 10.5 pistons, cylinders, cams (ours came with 260 cams) MVA heads, gaskets, SEST, SE clutch plate, perfect fit push rods.
IMO (actually, I listen to guys "in the know") the 266E cams needs 11 to 1 or higher compression.
It's not the kit or the components, it's something installed wrong or an extremely bad tune. TTS and SE offer several canned maps to start with so I do not know how the tune would be the problem.
I can send you a map for either a TTS or SE(P)ST you can try but they are tuned for a V&H Pro Pipe HO. The D&D pipe required more fuel everywhere.
Ultimate HDF Member
Joined: Nov 2008
Posts: 6,682
Likes: 12
Those are nice numbers, scj. I'd have to agree with you on the OP's tune. It's highly unlikely it would only be a tune issue with that much lower numbers. It's got to be
A: Rings (not seated or installed incorrectly)
B: Rockers need clearanced
C: Timing dots aren't lined up correctly
D: Pushrods (installed incorrectly or not "perfect fit")
Anyone can add to my list if I forgot something.
A: Rings (not seated or installed incorrectly)
B: Rockers need clearanced
C: Timing dots aren't lined up correctly
D: Pushrods (installed incorrectly or not "perfect fit")
Anyone can add to my list if I forgot something.
Road Master
Joined: May 2008
Posts: 1,196
Likes: 14
From: connecticut
I asked early on about a leak down test and if the acr's were turned off or unpluged when doing the compression test. Bottom line is no tune is going to fix low compression.
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Road Master
Joined: Nov 2006
Posts: 1,227
Likes: 3
From: Central Illinois
You must dis-able the ACR's while doing the compression test. We have built several 113's making 125hp. The CCP should be between 190-200#. The cylinder's do not match piston spec from factory. I would perform a leak down test to determine pressure loss.
I'm not buying it. He has something seriously wrong with his build and I don't believe it to be with the parts in the kit. I've done two SE pro race 113s and both made 110+ hp and one of them with Short Shots, (see bike in sig) This is a proven combo. The dealership I work with has done several this past winter) Also with the MVA heads, 58mm TB/injectors and matched manifold it is far from lazy. I know there are better builds from some INDY shops, but the pro race 113 should easily give 110+ hp and with some tweaking and a good 2 into 1, 120 hp.