Opinions on my build and a few generic questions
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Cruiser
Joined: Apr 2006
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Opinions on my build and a few generic questions
My 1993 FXSTC is apart right now and I ordered 10 to 1 screamin eagle pistons and an Andrews EV46 cam. I'm using new lifters, james gaskets, torrington cam bearing and the oil leak fix, I think it's Hayden. I'm sticking with stock pushrods and stock springs.
Last night I was at the bar talking to a few oldHarley guys and they seem to think I don't knowwhat I'm doing. I'm mechanically inclined but this is the first Harley I've been into, simple so far.
Anyway they are telling me I need valve springs and adjustable pushrods, I disagree with both and they just laugh.
In a few months I'm going to run oneof them for $100. He has an 87 softail with pistons, EV3, S&S carb and head work with bigger valves. That's all I really know but he says he runs 87 octain so he much not have toomuch compression. I want to make sureI beat him. I know I have more comrpession andmore cam alread. I'm going to run the stockCV carb with Screamin eagle airfilter and I guess I dyno jet kit. Any suggestions oncarb work? I heard of a thunder slide but I'm not familar with it, can someone fill me in on that?
Also how much does head poring help? I'm going to look into someone that does it locally and if not I'll just do a really light clean up myself.
I'm basically looking for any suggestions on work to do while it's apart, nothing too expensive.
Also what is the purpose of adustable pushrods? I thought it was just so you can change cams without pulling the rocker boxes. Meaning you cut the old ones out then you can still get adjustables back in there. These older guys are telling me no and that they are needed with aftermarket cams to adjust the vavles. I say if the cam has the same base circle then they hydraulic lifter will keep the valves properly adjusted. Can someone shed some light on this as well?
Thanks guys!
Last night I was at the bar talking to a few oldHarley guys and they seem to think I don't knowwhat I'm doing. I'm mechanically inclined but this is the first Harley I've been into, simple so far.
Anyway they are telling me I need valve springs and adjustable pushrods, I disagree with both and they just laugh.
In a few months I'm going to run oneof them for $100. He has an 87 softail with pistons, EV3, S&S carb and head work with bigger valves. That's all I really know but he says he runs 87 octain so he much not have toomuch compression. I want to make sureI beat him. I know I have more comrpession andmore cam alread. I'm going to run the stockCV carb with Screamin eagle airfilter and I guess I dyno jet kit. Any suggestions oncarb work? I heard of a thunder slide but I'm not familar with it, can someone fill me in on that?
Also how much does head poring help? I'm going to look into someone that does it locally and if not I'll just do a really light clean up myself.
I'm basically looking for any suggestions on work to do while it's apart, nothing too expensive.
Also what is the purpose of adustable pushrods? I thought it was just so you can change cams without pulling the rocker boxes. Meaning you cut the old ones out then you can still get adjustables back in there. These older guys are telling me no and that they are needed with aftermarket cams to adjust the vavles. I say if the cam has the same base circle then they hydraulic lifter will keep the valves properly adjusted. Can someone shed some light on this as well?
Thanks guys!
Road Warrior
Joined: Sep 2005
Posts: 1,569
Likes: 12
From: Arizona
RE: Opinions on my build and a few generic questions
pretty sure your going to need the pushrods. from what i understand there are two types of adjustable pushrods, you want the total clearance pushrods, that means you will be able to install, and remove, them with the motor assembled. besides there not that much.
Banned Camp
Joined: Apr 2007
Posts: 357
Likes: 0
RE: Opinions on my build and a few generic questions
The rod's arent that much of a additional cost while the motor is down....get them. A street port/polish job with oversized valves and new springs/guides ..( i'm having this done right now )...is costing me about 800 bux. Their telling me the motor should be between 90 and 100 rwhp when done.
Single fire ignition
Crane 292 cam
Head work
10.5:1 pistons
S&S E carb with a thunderjet already on the bike.
Single fire ignition
Crane 292 cam
Head work
10.5:1 pistons
S&S E carb with a thunderjet already on the bike.
Thread Starter
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Cruiser
Joined: Apr 2006
Posts: 100
Likes: 0
From:
RE: Opinions on my build and a few generic questions
ORIGINAL: 1yrb4hd
The rod's arent that much of a additional cost while the motor is down....get them. A street port/polish job with oversized valves and new springs/guides ..( i'm having this done right now )...is costing me about 800 bux. Their telling me the motor should be between 90 and 100 rwhp when done.
Single fire ignition
Crane 292 cam
Head work
10.5:1 pistons
S&S E carb with a thunderjet already on the bike.
The rod's arent that much of a additional cost while the motor is down....get them. A street port/polish job with oversized valves and new springs/guides ..( i'm having this done right now )...is costing me about 800 bux. Their telling me the motor should be between 90 and 100 rwhp when done.
Single fire ignition
Crane 292 cam
Head work
10.5:1 pistons
S&S E carb with a thunderjet already on the bike.
I also would like some opinions on my exhaust, this is what came on my bike.
They are samson straight pipes, I call them short shots. They are 2.25 inch which I think is probably too big. And they also had those torque cones or whatever they are called installed at the head. Should I take those out or leave them in? I considered leaving them in because my exhaust is probably too big. But also with the larger cam and screamin eagle air filter I will probably be flowing a lot more air so maybe I should leave those out?
Tourer
Joined: Apr 2007
Posts: 285
Likes: 2
From:
RE: Opinions on my build and a few generic questions
blown 331,
I did a build on a 90 evo 80" a couple years ago. sent the heads to Short Block Charlie in Tempe, AZ. Bigger valves, port/polish, shaved heads etc. Installed adjustable pushrods, EV46 cam, .005 over Flat top SE pistons.SE ignition module,new SE plug wires,rejetted and did the thunderslide modification on the CV carb. Ran good for a dresser. Went back and replaced the EV46 w/EV27 and changed exhaust to Vance and Hines 2into1 ProPipe. ran very good for a dresser. never actually had it dynoed . Did win my class in the dyno shootout at the local dealer . with me running it, it ran 75hp/85tq @125mph. there is a wealth of information @ http://www.nightrider.com/biketech/hdbuildstage3_95.htm Good luck on your run against the pro engine builders @ the bar.
later...........
I did a build on a 90 evo 80" a couple years ago. sent the heads to Short Block Charlie in Tempe, AZ. Bigger valves, port/polish, shaved heads etc. Installed adjustable pushrods, EV46 cam, .005 over Flat top SE pistons.SE ignition module,new SE plug wires,rejetted and did the thunderslide modification on the CV carb. Ran good for a dresser. Went back and replaced the EV46 w/EV27 and changed exhaust to Vance and Hines 2into1 ProPipe. ran very good for a dresser. never actually had it dynoed . Did win my class in the dyno shootout at the local dealer . with me running it, it ran 75hp/85tq @125mph. there is a wealth of information @ http://www.nightrider.com/biketech/hdbuildstage3_95.htm Good luck on your run against the pro engine builders @ the bar.
later...........
Road Master
Joined: Jan 2006
Posts: 1,192
Likes: 4
From: Columbus, OH
RE: Opinions on my build and a few generic questions
Adjustable pushrods are used for two reasons, one so you don't have to tear down the top end, two if you are using a cam that has a different valve lift (high lift cams). An EV46 is a bolt in cam, meaning you can use stock pushrods. Since you are taking the cylinders off anyway, you don't need them. If you are changing the gasket thickness or shaving the cylinder to get more compression, then I'm not sure if you need adjustables or not, never delt with that aspect.
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Cruiser
Joined: Apr 2006
Posts: 100
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From:
RE: Opinions on my build and a few generic questions
ORIGINAL: fxstcguy98
Adjustable pushrods are used for two reasons, one so you don't have to tear down the top end, two if you are using a cam that has a different valve lift (high lift cams). An EV46 is a bolt in cam, meaning you can use stock pushrods. Since you are taking the cylinders off anyway, you don't need them. If you are changing the gasket thickness or shaving the cylinder to get more compression, then I'm not sure if you need adjustables or not, never delt with that aspect.
Adjustable pushrods are used for two reasons, one so you don't have to tear down the top end, two if you are using a cam that has a different valve lift (high lift cams). An EV46 is a bolt in cam, meaning you can use stock pushrods. Since you are taking the cylinders off anyway, you don't need them. If you are changing the gasket thickness or shaving the cylinder to get more compression, then I'm not sure if you need adjustables or not, never delt with that aspect.
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Seasoned HDF Member
Joined: Oct 2007
Posts: 56,052
Likes: 88,134
From: Western South Dakota
RE: Opinions on my build and a few generic questions
Get rid of them torquecones and get those big city thunder baffles since you still have everything still apart. The cones make your pipes sound "tinny",(been there done that)and the big city thunder baffles give your pipes that sound that all of harley riders seek. I had em' in my samson short slashers, and loved em. Currently runnin' a kerker 2-1, and really don't know if I gained anything from switching over from the 2-1 from the samsons with the big city thunder baffles, outside of lowering the decibels a bit, LOL.
You can buy the kerkers on ebay usually for 100 bucks and some change, and they're not too bad. The BCT's are around 80 bucks and really did make a difference in my build. Some saythat you could do the same with any "little" baffle, but I went with what was tried and true. No regrets.
[/align]http://www.bigcitythunder.com/pages/baffled.html
You can buy the kerkers on ebay usually for 100 bucks and some change, and they're not too bad. The BCT's are around 80 bucks and really did make a difference in my build. Some saythat you could do the same with any "little" baffle, but I went with what was tried and true. No regrets.
[/align]http://www.bigcitythunder.com/pages/baffled.html
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