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[Nickmusic]

Hello from Cincinnati!  I'm a big fan of this message board and have a lot of respect for most of the opinions I read here.  Hoping to get some specific feedback on a new engine build I'm completing this winter.  First, I need to fully disclose that I am not a mechanic, nor do I have any real engine knowledge.

I have a 2015 FLHXS,  put 4000 miles on it this year, and decided it needs a solid power upgrade - both HP and Torque.  So, I took plenty of time to find one of the best engine builders in my area, which happened to be an HD tech with a stellar reputation.  I explained to him my goals for a significant power increase and here is what we decided -->  Screaming Eagle 110, MVA heads, 64mm throttle body, heavy-duty clutch, T-man 625 cams, SE Heavy Breather, SE Race Tuner, and D&D Boarzilla 2-1 exhaust. 

What are your thoughts?   Does this sound like a substantial increase in power? Any thoughts as to what I might expect for dyno numbers after the initial break-in?  Thanks for any feedback - much appreciated!

[sadunbar]

Hello from Cincinnati!  I'm a big fan of this message board and have a lot of respect for most of the opinions I read here.  Hoping to get some specific feedback on a new engine build I'm completing this winter.  First, I need to fully disclose that I am not a mechanic, nor do I have any real engine knowledge.

I have a 2015 FLHXS,  put 4000 miles on it this year, and decided it needs a solid power upgrade - both HP and Torque.  So, I took plenty of time to find one of the best engine builders in my area, which happened to be an HD tech with a stellar reputation.  I explained to him my goals for a significant power increase and here is what we decided -->  Screaming Eagle 110, MVA heads, 64mm throttle body, heavy-duty clutch, T-man 625 cams, SE Heavy Breather, SE Race Tuner, and D&D Boarzilla 2-1 exhaust. 

What are your thoughts?   Does this sound like a substantial increase in power? Any thoughts as to what I might expect for dyno numbers after the initial break-in?  Thanks for any feedback - much appreciated!

A few thoughts...

I'd suggest replacing the stock lifters with S&S or GMR lifters...

64mm is a lot of throttle body.  Slow speed/parking lot speed throttle response with be a handful.  I expect this large of throttle body will flow more than your intake manifold and possibly more than your heads and exhaust (which in my opinion makes it to large).  I run a 55mm HPI throttle body on my 120 130+/130+ motor and like the throttle response very much.

What size injectors are you planning to run in the throttle body?

Stock SE 110 heads with a little work will flow as much if not more than MVA heads, but there's nothing wrong with MVA heads either...

What valve springs do you plan to use on your MVA heads?  I'd suggest replacing the stock valve springs with AV&V 600 or 650 beehive springs to reduce strain on your valve train.  And I'd suggest replacing the stock iron valve guides with bronze valve guides - at least on the exhaust port.

There are lots of good cam choices.  T-man 625 is a reasonable choice.  I run T-man 662-1 cams.

Do you know who is going to tune your motor?  Your tuner should have a vote in what tuning system you use, since he's the guy that has to use it...

Good luck and have fun with your build!   

[prodrag1320]

Ide be thinking of doing the lower end too

[JCZ]

Nickmusic you mention that you have one of the best engine builders around....he should be able to tell you what this build will produce.  Should even have dyno sheets to show you, if he's a really experienced builder.  What does he say this build will do for you hp and tq?  What's the curve going to look like?

Curious why he's suggesting the 64mm throttle body?  What's your end goal with this build?

[HD Street Performance]

I assume high compression pistons were part of this build?

[fastfreddy]

if you give TR a call he will give you the info your looking for, im running his 625 cam and laid out the build with him before hand. he will let you know your gona need comp. around 10.6 to 10.8, and that size TB will be over kill. 

[Para Bellum]

Couple of questions here:
1.  did you tell this tech how much money you want tospend, and he made a list to use it all?
2.  Does this HD tech have a reputation just as a great repair guy, or also as a high performance builder?

What I see in your list is a lot of money spent on expensive parts, which will benefit the dealer and/or tech, but no mention of higher compression to support the 625 cam, or of a bore-and-hone to blueprint the cr@ppy HD stock cylinders, which often are out of round and/or tapered.  There's also no mention of fixing some of the well-known trouble-spots on our 110s, such as lifters.  And I assume this guy is going to do the (dyno) tune with the "SE Race Tuner," (by which I mean is probably a SEPST) and will probably just install a HD canned map.  So you will end up with a very expensive engine that has lots of blow-by, uses too much oil, isn't tuned worth a dollar, and doesn't run nearly as well as it should for the amount of money you've spent on it.

To be blunt, he sounds more like a parts replacer than a tech, and more like a salesman for his dealer than a serious performance builder.

[Mr. Warlock]

I agree 100% with Sadunbar regarding the 64mm TB, it's too big, a 58 is on the edge of being too big. Also, the Boarzilla pipe on a 110 is on the edge of being too big, a D&D Fat Cat is a better choice unless you plan on going bigger cubes later. The 625 Cams are an excellent choice IMO. Need to be concerned with all the spring and guide advice above.

[Ridgerunr]

Sadunbar gives good advice. I also ran a HPI 55 throttle body, on a 113", it was  big enough.

[sadunbar]

I assume high compression pistons were part of this build?

Since the O.P stated he's not technically inclined, it might be useful to tell him you ask this question due to his cam choice, which requires higher than stock compression to perform as intended...   

[sadunbar]

Ide be thinking of doing the lower end too

To the O.P. - Kirby suggests thinking of doing the lower end of your motor due to the reputation and past issues with stock MOCO flywheels.  With higher than stock horsepower motors (and with some stock horsepower motors) the flywheels sometimes "scissor", which can be catastrophic.  This was more common a few years ago than today.  With enough horsepower/torque it's a possibility with stock flywheels.  There are several competent aftermarket companies that can improve your stock flywheels and a company like S&S offers new replacement flywheels that are superior to stock MOCO flywheels.

[havenolife]

Are you talking about Steve Miller from Cininnati Harley

[prodrag1320]

if your looking for a good,reliable build that will give very good power & still be able to ride it anywhere you want,ide do:
have your 110 heads worked (with AV&V guides)
HPI 55mm t. body
10.5-1 pistons
S&S .585 cam kit
S&S std. lifters
plug & true the F/W assy

[HUBBARD]

  My question..........Is this guy, (the Tech), one of many "experts" in the HP business?  I agree with all the comments posted on the request for advice, especially sandunbar's advice, except for this one...........I don't know TR, so I can't comment on that.  Robert Yates once told me..."Speed cost money...how fast do you wanna' go?"  It can cost a whole lot more money, if you get reeled in by some of the "experts", and it still won't run.  I'm not implying this builder's advice is disingenuous, but to me, his suggestions have a very specific aroma to them......like bullchit.  There endeth the lesson.  Later--HUBBARD   

[GMR-PERFORMANCE]

Too large of a T/b , pipe is a bit large ( not out of the ball park though) heads are wrong for the cam choice, 



Do not be shocked if a guy on a 110 with a cam can pull away from you with ease.. That kit would need to see a high rpm number to be making any real tq.



 

113 + 58 t/b bolt in cam that pipe and stock heads will yield very nice power and cost way less .  ( here is one with the pipe you choose stock heads . 58 t/b and the zilla  and the 113 bolt on kit . For now its coming back for CNC  on his heads)   Its an example nothing more