My question would be: Did they tune it, or just build the motor and put it on a dyno and give you the peak numbers. Post your dyno sheet with an AFR reading and these guys will help you.

My guess is that your tune is not close to being optimized. I'm not real familiar with the 256 cams or the heads you have. If the tune is spot on, I would start looking at a better cam for the heads you're running.

Check the Latus Motors website and post your results on the Ask Mike forum. It takes him a couple of days to get back, but he knows his stuff, especially SE parts and combos.

Good luck.

 

I was expecting more than the dyno showed. Now let me add that the bike pulls hard, sounds great with the Rineharts TD's and after riding it for awhile now, I can also add am very pleased with the way it runs. No regrets on the money spent.

 

I'm not sure how you can say this. You spent a lot more money going 113" than you could have spent going to a bolt on big bore kit(95" or 98"). Your results are not much better than a large number of bolt on kits. I would be doing some research on other 113" dynos with comparable components and looking to get yours to those levels with minimal additional cash. I would have expected no less than 120 ft lbs of tq from a 113" build. If you think you're happy with what you have now, how happy would you be with the build operating at it's max potential. Don't settle just because it is much stronger than it was at 88". I think there is much more to be gained in your existing build. This is just my opinion.

This is an example of what a 113" can do. Obviously not a lot of details on the components, but I would suspect it to be a basic HD parts build. Look around at other dyno's on that board and you are bound to see something (maybe in a 103" which is still a stroker) that is closer to your combo.

http://www.latus-harley-davidson.com...mid=1890#M1890

 

Somehow you missed something. I have an 07 that started life as a 96 ci. have now taken it to 103 not 113. If I had gone to the more expensive route of splitting the cases and going to the 113 I would be disappointed with my numbers. If I had gone with a 2 into 1 exhaust then I could also expect more HP. Once again "no regrets on the money spent"

 

You're right. When I read your post I mistakenly thought you were the original poster. My mistake.

 

I talked with my builder today and we discussed at length the 103" kits versus the 113". Being the same stroke as the 103, the 113 with it's bigger bore should make better power, and it's obvious from your compression and heads that more power should be evident. I think you would have benefitted a bit more from some better cams like perhapsred shift 577's (better mid range power with a bit more duration),and alsosuspect you have a lot more power to be discovered with a more thorough tune. I'd start with a better tuner like the DTT or Thundermax, and get it dialed in better. You might be surprised at what you find for missing power.

 

No problem gave me a chance for another post.

 

I agree, it aint the pipes. I just had my dyno tune done by Mike Roland; and on a list of performance exhausts that they recommend was the Rhinehart true duals...but they recommend them for engine builds over 103"; which his obviously qualifies for. With what you have into it, you should be able to expect at least the hp OR tq would match the 113 of your engine displacement. A well tuned setup should be able to make at least 1 hp per cubic inch.

 

Yourright a 113" motor should make more power. But probably not with 256 cams. What throttle body and injectors did you use. If your still running the stock ones, theres yoursecondproblem. A bigger t/body like the ones from Horse Power Inc. and gear drive cams like Red Shift 577/657's will produce more power and torque.Unless your air/fuel isWAY OFFtuning is only going to optimize the way it runs throughout the RPM range, yourMAX #'s wont change that much. You already have a SE race tuner DONT let ANYBODY try to talk you out of useing it. It is the best there is. Everything else is either a piggy back tuner that had LESS adjustabilty or a replacement that tunes itself ( ya right ) DTT wont fix your #'s and they dont work as well assome people here seem to think, PCIII is like having a 21 speed bike and only being able to use 7 gears. We have built hundreds of motors with just about every available part combo HD/SE and aftermarket. No amount of tuning is going to fix a combo the just doesnt work.Just my .02 But its what I DO for a living.

 

[/quote]ORIGINAL: PhilM

I'll define more.

My 98" HQ build @ 10:1 makes 113/111. My dyno sheet is in the dyno thread and here: http://www.head-quarters.com/html/98__kit.html

Sadly, many dealerships do not pay great attention to detail and just run'm thru like cattle. Tune also plays a HUGE part.
[/quote]


Here is an example ofagood combination,thatbreaths welland is well tuned with good SAE numbers. To many over emphasize the cubes and under emphasize the heads, the power is in the heads.If Icould only afford to spendmoney on heads or cubes it would be a good set of aftermarket heads, possibly custom ported by an experianced, reputableflow bench operator.The proper flowing heads with good port velocity do not require much cam to give a very broad, impressive power band, often more then 1 HP/TQ per cubic inch.