Engine coming apart...upgrade device??

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Mar 1, 2017 | 09:50 PM

#11

Sguernsjr

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6th Gear

Joined: Sep 2016

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From: New Orleans

I'm actually thinking about the se204 with the Se a/c, dragons dragula 2 into one and a tune for now to ride out my warranty and then things will get fun. Thanks for all of your input!!

How does the se204 sound?? From my research it should put the tq down low where we want it and have a nice long curve...I hope anyway haha

Are there any other SE cams that would work well without having to change springs, heads etc.??

Mar 2, 2017 | 11:46 AM

#12

djl

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From: san antonio

Quote:

Originally Posted by Sguernsjr

I'm actually thinking about the se204 with the Se a/c, dragons dragula 2 into one and a tune for now to ride out my warranty and then things will get fun. Thanks for all of your input!! How does the se204 sound?? From my research it should put the tq down low where we want it and have a nice long curve...I hope anyway haha. Are there any other SE cams that would work well without having to change springs, heads etc.??

The 204 has a great lumpy idle; very "hot roddish". If going with the 204, consider the 1.7 ratio rockers to increase lift. The 204 will be a bit soft on the bottom but strong in the midrange. If you are looking for low end torque, the SE255 would be a better choice; it will start falling off at 4000rpms and all in by 4500.

Mar 2, 2017 | 01:23 PM

#13

Sguernsjr

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From: New Orleans

Quote:

Originally Posted by djl

Well I'm all messed up then haha. From the research that I did the 204 looked like it was strong down low had a pretty flat torque curve until about 5000 RPMs. Now I guess it's back to square one for me. I didn't like the 255 because it totally fell off at 4500 like you mentioned. Other than the 204 or the 255 which Kim is decent in the low-end and doesn't fall completely off the 4500 RPMs?

Mar 2, 2017 | 01:54 PM

#14

djl

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From: san antonio

Quote:

Originally Posted by Sguernsjr

I said the 204 will be a "bit" soft on the bottom; you won't notice it unless riding two up. Have you ridden a 103" with 255 cams? You only have 900 miles on the bike so are you so sure that the 255 wont' work? How often to you think you actually see 4500rpms? I would bet you don't see 4500 rpms as often ad you think you do so I wouldn't be so quick to dismiss the 255 cams. Anyway, those are your two choices of HD cams that meet your criteria.

Mar 2, 2017 | 02:16 PM

#15

FlaHeatWave

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Joined: Jan 2014

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From: The Redneck Riviera

Quote:

Originally Posted by Sguernsjr

you read me like a book. hahaha. I've been running through every possible combination in those three choices, since I heard the engine had to come apart. But, I think I'm gonna go with #3. it'll save me a bunch if money and will get me what I want and hopefully keep my warranty. Does the cam swap with an SE cam allow me to keep my warranty/ESP? i keep finding mixed answers.

Yep, a lot of folks have pondered the same scenarios...

Not all SE Cams are Warranty/ESP eligible, best to check with your Dealer...

Mar 2, 2017 | 02:56 PM

#16

Sguernsjr

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From: New Orleans

Quote:

Originally Posted by djl

You know what??...you're right!! I'm looking into the dyno chart too much and not actually applying everything to the real world. Thanks for setting me straight. Haha

SE255's it is!!

Mar 3, 2017 | 02:23 AM

#17

Arseclown

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Joined: Jun 2014

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From: Batcave

Quote:

Originally Posted by Sguernsjr

You know what??...you're right!! I'm looking into the dyno chart too much and not actually applying everything to the real world. Thanks for setting me straight. Haha

SE255's it is!!

I would never use a se255 cam on a 103 engine. Too much comp for such an early intake close. And too much heat. Se204 cam works great on a 103. Se255 cam works well in the low comp 96 engine and lower comp 110 engine. Hope you don't have hot weather where you are.

Last edited by Arseclown; Mar 3, 2017 at 02:25 AM.

Mar 3, 2017 | 09:11 AM

#18

djl

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From: san antonio

Quote:

Originally Posted by Arseclown

The 255 will be fine in a 103"; corrected CR about 9.4 and CCP 195ish with stock heads and head gasket; lots running with no issues. The 204 has 8* advance ground into the profile; wicked advance curve and prone to pinging at anything higher than 9.8 static. Both can be a tuning challenge and the choice really depends on where the OP wants the cam to perform. If off idle to 4000rpm TQ is the goal and not high HP, the 255 fits the bill; however, if giving up a bit on the low end and looking for midrange power, the 204 wins. The 204 in a larger displacement motor will benefit from the 1.7 ratio rockers for a lift boost but that's JMHO.