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Engine Mechanical TopicsDiscussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.
What do you all think of this build list for a carbureted 2005 fxdx?
Ignition will be tuned with Daytona twin tech tc88a tuner
Going to have the heads cnc ported with 1.900 intake valves and stock exhaust valves with mag bronze guides and new seals
Heads are being done by JW performance and he is going to port match the intake manifold to the heads
Harley 22661-99a cast 10.25 compression 95 inch pistons
Kirby at vee twin performance is going to bore and hone my cylinders for $125
Cyco TE-1550mls40 top end gaskit kit
Fueling reaper 543 gear drive cams (bikes already converted to gear drive by previous owner)
S&S cam install kit for gear drive cams
Premium carb kit for stock cv carb from cv performance
Should be able to reuse the pushrods that are in there now with the s&s 510 cams
Looking for suggestions on budget lifters.
Is there anything I an either missing or would be better replacing wjtgir a real cost increase?
johnson hylift member sells them here or on hdtech talk...
Good to know. It has been a while since I bought from CYCO and they were not offering a .030" for the 3.875" bore at that time. I need to check again to see if they offer one for the 3.938" bore.
That dyno chart you posted did not mention heads or compression and is an EFI motor. A carbed motor cannot be tuned as tightly as an EFI motor but I wish you well with those cams.
What does "tuned as tightly" mean?
To the OP what is the exhaust? Will need a good 2 into 1..
Final CR about 10.5 would be good.
Also using cast 10.25 pistons with 1.9 intakes will require the pistons to be cut to clear the valves.. IIRC going 98 adds about 200 to the piston cost and you might want to go forged.
A carb would seem to be much more of a compromise when it comes to tuning than an EFI motor and cannot be tuned as precisely as EFI. Not sure it that means a carb tuned motor will make less HP/TQ than the same motor EFI tuned but expect that the EFI motor can be tuned to be more efficient in delivering the HP/TQ.
A carb would seem to be much more of a compromise when it comes to tuning than an EFI motor and cannot be tuned as precisely as EFI. Not sure it that means a carb tuned motor will make less HP/TQ than the same motor EFI tuned but expect that the EFI motor can be tuned to be more efficient in delivering the HP/TQ.
Ok so for gas mileage and altitude I would agree. WOT / dynos, flow will be the issue but then same goes for throttle body selection.
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