Shit Macka, ya sposed ta take the raincoat off the air cleaner before ya dyno the bike !

 Macka,

Had a quick look at a couple of the 120R cals on the sepst. (there are 7 in total to choose from I believe). Both allow you to enable or disable the ACRs, same as any other cal as far as I know.

Dunno what your dyno guy is on about, but seems to me u need to pick the best 120R map to suit your build and start again!

What cams, heads, TB, pipes, compression are u running?.........I'll see if I can help u select a better base map.

Burto.

I'd be really pissed with those numbers. I know it's only paper, but that's not what you payed for.
I'm sure someone around can give you a copy of their 120 map to try ?
Do you have an AFR run from the Dyno ?
Are these numbers repeatable, or do they vary much from warm to hot ?
Sounds like time to upgrade the SERT to a TTS and borrow Ando's map !

 hi, give peter @ Robbo's Harley @ Canberra a call,    . ive' worked with him & he's a very good tuner  he could help you sort it out , i helped  him the other day with a 120r  on the same cam set up with & rb pipe  like 130+ hp,        will be putting 1 together same as yours next mth 266 cam 10 to 1 comp  etc ,   i can't give too much away as what it's for but it will be very well used & will be a good gildeline i hope with some good  #'s 

 is the spec on the 120R  10 to 1 c.r.  ?  or 10.5 comp ratio

V&H are power killers
A D&D or a Bassani road rage 2-1 would make a big difference with those numbers.
Mates bike was very low after installing Andrews 50 cams and the dyno operator said its the pipes so he changed to the stock headers with S&S slip on's picked up 30 HP. 60 to 90 HP. Also a true story

no offence but some people are a wolesale shop selling there ware's +pushing there products, i receive  flyers off mr walker every 3 weeks  adverts they go straight in the garbage bin  because the bike stuff is mainly tawian /asian , +   it's mainly car stuff anyway  the bike parts is a side line    ,      you can make any set of pipes work  with a bit of modification, most holesale's or guys behind the counter are not mechanic's  or  motorcycle racer's

 Macka,

from what I can see, u have 3 maps to choose from that are sposed to be for 120Rs of your configeration.

009SAZ003

009SBG001.......without checking every table, I'm pretty sure that these 2 are the same maps.

044SAZ016........this one is way different to the other 2.....higher VEs and less spark mainly.

So basically your tuner should have tried these 2 options as a base map and went with the one that ran better to start with.

Surely he would know that u can enable or disable the ACRs in any map!!!! If not mate, I'd be seriously looking for another dyno guy!

Don't know if you have the cables and software but if u do, I'd be trying the other 2 maps myself to compare how it runs against his map.

Burto.

Don't sweat it Macka, curves (esp torque over 100 from 2600-5600) are on the way, 120/120 is a good get for 120R from what I read. I would guess your 2:2 V&H are costing you up to 10hp, where a 2:1 will get that tq up quicker, certainly look into the 2:1 from Supertrapp, Bass. D&D and others (I use the V&H HO pro pipe). But first I think you need to talk to a good tuner who works a lot with SERT (not a tinkerer), not easy in your part of the world, there would definitely be a 120R tune on the CD that a tuner can start with.
As others say, it's in there, as long as it's riding well, run it in and enjoy working with it. Cheers.

Hi all...I myself have big plans for a 120ci engine later on this year.If i spent $10k on an engine and got those power figures i would be pissed off.

I think you will find the diff is pipes. Correct me if im wrong but Ando is running the Bassani 2 into 1s whilst macka has the V & H 2 into 2.
I think the diff in touque between the bikes is 7 or 8. My mechnic never shuts up about the inportance of pipes especially on a performance motor.
I reckon that will be part of your prob macka

posted at same time mate. let us all know how ya go tomorrow

give me a call makka have a chat with ya man

Macka,

Did the tuner correct the VE map first with a wide band sensor in the exhaust then set those AFR numbers?

Did he give you a dyno sheet with the AFR across the bottom. If not can he?

If the answer is no to either of those questions find another tuner.

cheers
Surly

nope to restrictive

I contacted rosacycle 6 months regarding 2-1 pipes and prefers the V&H competition pipe and he builds some very impressive motors.
I'm running a Bassani RR on my 103 bagger and it was fucking loud until I trapped it. Not sure about the Bassani being only good on 103 cube motors as R&R recommends them on there mountain motors.
FYO, OZ and Stix might be able to give you better advice with the larger primarys with a 120 cube motor as they have been there and done it.

The V&H Comp's are seriously loud, and radiate a lot of heat.

Macka
I just fitted new slugs in my scooter and thought fuck the 2-1 and put a set of duals with S&S spo's on the bike. I done 500 K's with the duals and there boxed up back in the shed because I lost that tyre shredding grunt from 2000 RPM. If I was buying another 2-1 pipe the Supertrapp would be my pick because it's tunable for where you want your HP/Torque and it's easy to remove discs when the Cops & EPA have there yearly blitz on loud pipes.

Macka the frazer 120R that runs low 10's quarter mile & gets to just over 130MPH (208KPH ) at end of standing quarter, don't use 2 into 1 but it's loud. still no one has showed me 2 into 1 makes more power that duel's, they just get a bit more TQ at low rev but who rides slow with a 120 inch twin?

good luck you got the horses there m8 no question just have to spend time or find a tunner with australian maps for  that motor & combo

The best way for me to describe the gain you get from 2 into 1 pipe is that the torque in the midrange (2k rpm to 4500rpm) will improve significantly. Where you once had to downshift, you can now just roll on the throttle and the bike will have enough torque to motor on down the road. This might not sound like a big deal but it makes for a much more enjoyable to ride motorcycle.

In addition to the mid-range torque benefits, it will also pull much harder throughout the RPM range as well. From a performance standpoint, a 2 into 1 pipe will outperform a 2 into 2 Harley pipe all day long.

above is quoted from a well known harley exhaust manufacturer that makes alot of 2 into 2 pipes. I cant find anywhere that does not give me the same info.

Well i stand corrected i have been missled by the exhaust system sites on the net and also my mechenic of 15 years. I have had 2 into 2 pipes on my last 3 harleys and also on my current one.
But am putting a 120r into a bike shortly and all my studying up on the subject has now been blown out of the water.
I know the 120rs are a race engine but the cuple of blokes that have them on this site are street riden bikes