1340 EVO motor upgrade - Road Glide Forums
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post #1 of 27 (permalink) Old 12-29-2012, 11:47 PM Thread Starter
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1340 EVO motor upgrade

Im looking to upgrade the evo motor...looking for suggestions....

I believe the cam ill use is the EV27 andrews cam....
just bout SE ignition module/better plugs/wires/coil...


I dont wont to spend alot on it as at some point will be cheaper to buy a engine...lol

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Roadsmith Conversions, Bad Dad, Baker Drivetrain, and Hawg Halters.
1998 Road Glide EVO project.
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post #2 of 27 (permalink) Old 12-30-2012, 07:23 AM
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How many miles on your evo these or great motors and can be woke up real nice and what or you wanting out of it, there is a evo guru in KC.
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post #3 of 27 (permalink) Old 12-30-2012, 08:31 AM
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yep the miles is what I am curious about .. I had two very high mileage EVO TG's and since ya dont have all the EPA stuff , wont take much to wake it up

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post #4 of 27 (permalink) Old 12-30-2012, 08:32 AM
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Hemi heads

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post #5 of 27 (permalink) Old 12-30-2012, 09:25 AM
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ide do the ev46 over the 27,our 1.900 street port heads set @ 10.0-1,80/90 easy & inexpensive
post #6 of 27 (permalink) Old 12-30-2012, 10:41 AM
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Had EV27 in my evo motor, pulls real nice from 3000 up to redline. Head work will really wake it up. Some reversion issues if you are running straight pipes, need back pressure to run thier best
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post #7 of 27 (permalink) Old 12-30-2012, 12:03 PM Thread Starter
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I have 49,500 miles


should i upgrade to mikuni 42mm carb also?

George's Trike Shop 713-418-0954
Roadsmith Conversions, Bad Dad, Baker Drivetrain, and Hawg Halters.
1998 Road Glide EVO project.
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post #8 of 27 (permalink) Old 12-30-2012, 12:05 PM Thread Starter
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Quote:
Originally Posted by prodrag1320 View Post
ide do the ev46 over the 27,our 1.900 street port heads set @ 10.0-1,80/90 easy & inexpensive
even if only need driving/passing power?

George's Trike Shop 713-418-0954
Roadsmith Conversions, Bad Dad, Baker Drivetrain, and Hawg Halters.
1998 Road Glide EVO project.
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post #9 of 27 (permalink) Old 12-30-2012, 03:46 PM
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Originally Posted by my98glide View Post
I have 49,500 miles


should i upgrade to mikuni 42mm carb also?
That engine is barely broke in.

Miki's and S&S's make great drag racing carbs. But day to day riding, and especially touring, are not those carb's strong suits. You will lose a lot of fuel economy and day to day driveability with either one when compared to the factory CV. Properly jetted CVs are more than capable of making big horsepower numbers. So, in my opinion a Miki would not be an upgrade.

Another vote for the EV46. Rubber mount Evo's like hotter cams than you would typically select for a rigid mount. Personally I dislike the EV27 and EV3, they were very popular back in the 90's, but I never liked the way my bikes ran with these cams. My favorite cams back then were Crane 310 and 316.

If you are willing to take the heads off, a simple .050" mill, combustion chamber clean up, tulip valves and a seat pressure bump will work great with the EV46.
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post #10 of 27 (permalink) Old 12-30-2012, 05:21 PM
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Originally Posted by rageglide View Post
That engine is barely broke in.

Miki's and S&S's make great drag racing carbs. But day to day riding, and especially touring, are not those carb's strong suits. You will lose a lot of fuel economy and day to day driveability with either one when compared to the factory CV. Properly jetted CVs are more than capable of making big horsepower numbers. So, in my opinion a Miki would not be an upgrade.

Another vote for the EV46. Rubber mount Evo's like hotter cams than you would typically select for a rigid mount. Personally I dislike the EV27 and EV3, they were very popular back in the 90's, but I never liked the way my bikes ran with these cams. My favorite cams back then were Crane 310 and 316.

If you are willing to take the heads off, a simple .050" mill, combustion chamber clean up, tulip valves and a seat pressure bump will work great with the EV46.
actully,your wrong.a mikuni or S&S,properly tuned will NOT give less milage or "around town" drivability.if youve got any decent headwork done,your heads will out flow a stock CV carb (dont get me wrong,I like CV`s,their the best "stock" carb by far,but for VERY mild builds only)a bigger carb will yield more mid-high RPM power.no need for any more than 150# on the seats either
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