Timing a stroked Evo
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Seasoned HDF Member
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From: Coromandel Peninsula New Zealand
Timing a stroked Evo
I have a Trike in my workshop with a 91 Evo motor with Edelbrock heads and an Axtell 1480 stroker kit.
Anyone know the correct ign timing data? Its eaten the pistons, knocked big lumps off the ring lands and I am thinking this was a timing issue.
As the pistons travel further per degree of rotation I am thinking I will dial gauge the timing and re mark the crankshaft........unless any of you know different?
Anyone know the correct ign timing data? Its eaten the pistons, knocked big lumps off the ring lands and I am thinking this was a timing issue.
As the pistons travel further per degree of rotation I am thinking I will dial gauge the timing and re mark the crankshaft........unless any of you know different?
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From: Ohio
Need to do some checking, Axtell doesn't offer cranks and kits are big bore with a 4 5/8's stroker being 107" and most likely an S&S is used. They offered the odd cubed Nikasil cylinder but big cubes with a 4 5/8's crank
Attached S&S crank identifying info and timing recommendations
http://www.sscycle.com/instructions/...t.php?x_cat=26
Attached S&S crank identifying info and timing recommendations
http://www.sscycle.com/instructions/...t.php?x_cat=26
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Seasoned HDF Member
Joined: Dec 2010
Posts: 7,736
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From: Coromandel Peninsula New Zealand
Need to do some checking, Axtell doesn't offer cranks and kits are big bore with a 4 5/8's stroker being 107" and most likely an S&S is used. They offered the odd cubed Nikasil cylinder but big cubes with a 4 5/8's crank
Attached S&S crank identifying info and timing recommendations
http://www.sscycle.com/instructions/...t.php?x_cat=26
Attached S&S crank identifying info and timing recommendations
http://www.sscycle.com/instructions/...t.php?x_cat=26
Says Axtell on the jugs and is std bore but with a huge stroke...must be a different crank in there then.
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From: Ohio
If it is a stock bore then someone stuffed a 4 3/4 crank in there, very possible setup for torque with the trike setup, only chance is to view numbers through the timing hole.
Measure the piston travel and will give you stroke length, sounds like someone did some clearancing to stuff the crank in a stock case. Good Luck!
Measure the piston travel and will give you stroke length, sounds like someone did some clearancing to stuff the crank in a stock case. Good Luck!
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Seasoned HDF Member
Joined: Dec 2010
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From: Coromandel Peninsula New Zealand
If it is a stock bore then someone stuffed a 4 3/4 crank in there, very possible setup for torque with the trike setup, only chance is to view numbers through the timing hole.
Measure the piston travel and will give you stroke length, sounds like someone did some clearancing to stuff the crank in a stock case. Good Luck!
Measure the piston travel and will give you stroke length, sounds like someone did some clearancing to stuff the crank in a stock case. Good Luck!
There are cutaways on the inlet side of the piston skirts, not really looked at the cases but from my research (which was a result of replies in this thread) the stroker cranks have timing marks on them.....but you are supposed to play about with the timing and run them at 30-32 degrees rather than 35.
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From: Bedford UK
It is true Axtell do not currently offer stroker kits for Evos, but they do for shovels, so may have done once for Evos. They do offer cylinder/piston sets for stroker Evos. As I stated previously I had a JIMS stroker crank in my motor (that was what my builder supplied and installed), so that is another possibility. An email to Axtell doesn't cost much, if there is a possibility it will help! Alternatively look into JIMS to see if they can supply answers.
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Seasoned HDF Member
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From: Coromandel Peninsula New Zealand
Axtell site was very useful, as was the link in a previous post...I have the answers I seek now.....thats why I am a member of this excellent forum :-)
Did you ever complete that 6 gallon tank conversion?
Did you ever complete that 6 gallon tank conversion?
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From: Bedford UK
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