My 103" dyno

Zach

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Portland, OR
Here is my dyno sheet for my current 103". It started as a Head Quarters 103ST kit. I pulled the HQ575 in favor of a set of T-Man 590's. No real reason, just wanted to play. Didn't gain or lose anything in the swap. It's 10.6:1, cranks right at 200ccp. Uses CP flat top pistons, SE heavy breather, Bassani Road Rage, tuned with a TTS by Bob at RC Cycles in Hayward, CA. Yes, I drove 1200 miles round triip to get a tune. Oh, and this is all with a stock throttle body and injectors. Built by me in my garage.



Here's a YouTube of Bob running it through the gears after the first tune.

http://www.youtube.com/watch?v=cV3OzhY8qqg&list=UUiGHrwkL8HzYjs8P8-Vqyxw&index=20&feature=plcp

Zach
 

Chad263

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Thats pretty damn good from a 103 really good actually. Good job man hell i had a 103 before from R&R stage 4 and it only made 105hp and 115tq which still isnt bad from a 103
 

Zach

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Portland, OR
Thats pretty damn good from a 103 really good actually. Good job man hell i had a 103 before from R&R stage 4 and it only made 105hp and 115tq which still isnt bad from a 103
Thanks. I actually want to get it up to 125/125+ and keep it 103". That would be about 1.21 hp/tq per CI. That's pretty solid for a naturally aspirated HD. I'm debating kicking the compression up a notch. The T-Man cams like 10.8:1 and I'm at around 10.6:1 right now. I think the heads can support it. I'd need to ditch the stock TB and injectors though. Just not sure I can justify $1000 to jump 10hp and 5tq.

I thought about putting a Procharger on it from Frank, but I feel like I'm too committed on this high compression build to go that way.

Zach
 

Chad263

One of THE 150!
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New Hampshire
125 125 out of a 103 would be pretty damn cool i agree with you on that.. I"m using all t-man products on my new motor with a pro charger. $1,000 bucks to jump 10 hp there is a lot of people that spend way more than that to gain 10 hp
 

dbell66253

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South Florida
Are you thinking about doing some bottom end work to handle the extra power? You will be right on the boderline of what the engine can handle, depending on how you ride, could get kind of hard on the crank.
 

Zach

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Portland, OR
dbell - TIR on my crank is at .0045 right now. Not great, but not disaster either. I actually checked it about 9 months ago and it hasn't moved since I did the motor originally 3 years ago. I don't do wheelies, burnouts, or hole shots so I'm hoping it will sit where it is. I'm not afraid to run it hard through the gears, but as long as I don't miss a shift or do something stupid it should be fine. If it does start to move the whole thing is coming out and the motor will grow to 120 or more. Those SE120R's are a hell of a deal and I might just be tempted to go that way with a little massaging to it to get to that magic 1.2 mark for me. \

Chad - T-Man makes great stuff and has proven he knows the ProCharger as well. I bet that new motor is going to flat get it. Plus, TR is a hell of a nice guy. I spent about 20 minutes on the phone with him a while ago and he treated me like I was an old friend. Unfortunately that is rare in this industry from my experience.

Zach
 
We like the 590 on heavy bikes from what we see is the 590 makes a little more down low and the 625 makes more up top. But either way they are great cams... We use almost 80% tman cams here we have are own 2 cams for now a 570 lift and are 656 cam But we use them in are blower apps. Unless someone has a motor with 10.8 or higher...


I like the looks of that 625, looks like a torque monster.

Zach
 

ROCKETW19

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307
damn all the way to Hayward for a tune. did you come out this way to have him squeeze every bit of HP outt the motor or other reasons to use him?
old thread i know but I just decided to go with the SE 103 stage 4 kit. I got a great deal and cheep install. I am sure the tune is very basic it comes with and that is fine I am ok with safe and not ever bit of HP outta the motor.
but that shop is not far from me if he can drasticaly impove the tune over the stock SE tune and still be safe I might look into him. Not chasing the last bit of power been down that road many times with cars,lol
 

Zach

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Portland, OR
RC Cycles has one of the best tuners in the country. I spoke to every tuner within 300 miles of me and could not get enough confidence in them to pull the trigger. I have family in the Bay Area and the Valley so I made both trips down there into mini vacations to see them.

There are a lot more benefits to having him tune your new build. Max power is only one. Fuel economy, starting issues, cruise range drive ability, overall engine temp management are others that would make my decision if I were you. IIRC it was around $450 to have him do his thing. Well worth it to me. Plus he prefers you are in the dyno room with him so he can show you what he's doing and explain why things are doing what they are. It's a good time if you're into that.

Zach
damn all the way to Hayward for a tune. did you come out this way to have him squeeze every bit of HP outt the motor or other reasons to use him?
old thread i know but I just decided to go with the SE 103 stage 4 kit. I got a great deal and cheep install. I am sure the tune is very basic it comes with and that is fine I am ok with safe and not ever bit of HP outta the motor.
but that shop is not far from me if he can drasticaly impove the tune over the stock SE tune and still be safe I might look into him. Not chasing the last bit of power been down that road many times with cars,lol
 

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