Hi,

4000kms and replacing lifters for some fueling lifters, would get outa there quick as

Thanks
Robots

What are the quality of the b lifters introduced in 2007 and what kind of power and/or mileage can they support?

Hi,

There is a lot of hysteria over lifters fatbat , many who claim c lifter no good couldn't even point to 10 documented cases of failure, it's an easy unknown item for many and they follow the advise of many unqualified engine builders regarding them

The hydraulic lifter is a basic item and good for thousands of Kms, and there would be riders here at hd forums who have thousands of Kms on stock bike and wouldn't know what a lifter is

There a spec for lifter check in your manual and now HD recommend to change at 7500miles for bike with any of the race kits, beef up packages

Open the cam chest have a look at them
Thanks
Robots

Hi,

My apologies, yeah sure thing on the c lifters

Thanks
Robots

question , ? , hydraulic lifters ? if i build a good car eng , i use solid roller lifters and cam ,stock  hydraulic lifters are suited to standard valve spring pressures and non aggresive lobe lift  , if you dont run quality  lifter set that are up  to handle these higher  pressures  , then you will see abnormal markings on roller ,  hydraulic lifters do not hold correct clearance at all rev ranges , so lifter will not follow cam profile and chatter and  hammering will happen with out you even hearing it , the other reason that it could happen is poor quality items etc , there is also  lot of other areas i havent touched on that will help this problem mutate  , this only the start , cheers guys

Hi,

How you go PaulT? Get it all sorted out with the bike

Thanks
Robots

Hi,

You there PaulT? How has it gone with the bike, back on the road or still changing out more quality Hd parts for aftermarket brands?

Thanks
Robots

Hey there, been off for a while, guess I felt a tad silly but I just wanted the bike how I like it. Had it taken back to stage two, so its stock with V&H long shots deep breather as before and milder but torque-ier cams. I think they are SE 204, or is that 402. Anyway its soooo much nicer to ride. After a dyno Ive only lost about 15hp at the top and still have the same torque, only it comes on earlier in the rev range.

Hi,

Good result PaulT glad it worked out for you, i reckon Hilly could of tweaked the tune to make it a bit better

Thanks
Robots

Thanks chaps, Who's Hilly?

Hi Ando,

Do you know aproximately when they started putting C lifters in. Plenty of my mates have recent 96s and 103s and do lots of kms.

Cheers Mate.

Mate Iam not sure but I THINK 2011 WAS THE YEAR THEY CHANGED TO c LIFTERS

hi , paul , just wondering what heads have you got on the bike now ,

Thanks Ando.

Re igniting this old post as I have an s&s 107 top end kit in mine which uses the domed cp pistons as part of the kit. I think I'm using the oem spec head gasket which has my compression set to about 10.4. Using s&s adjustable push rods and fueling lifters, along with s&s 585 ezy start cams. No headwork. Using the supertrapp 2-1 pipe.

Not wanting to spend more on the bike now if I can avoid it but want more torque earlier. Looked at the andrews 54 and wood tw-555 but both may want a slightly lower cr than 10.4. The heads would need to come off for compression releases anyway so that'd be the time to tidy up the intake and exhaust ports, and an opportunity to expand the combustion chamber up a cc or two get me to around 10.1 or 10.2 cr.

The 585 intake closes at 45 and the tw-555 has intake close at 41.

Another idea would be to advance the 585 cams using a 4* advance gear. Would this work?

Keen for any input please.

I would leave that cam and just do ya heads,

I didn't think headwork would do too much for getting torque earlier; but moreso assist with power up top?

Yeah agree about dyno charts not being everything. My bike has never seen a dyno and seat of the pants is what I use to assess performance and change. Having said that, I'm considering having it dyno tuned to see if it can produce more torque earlier in the rev range but I also think the 585s are simply the wrong cam for me.

Cost of headwork adds up with heads, headwork, throttle body and injectors, labour etc. 

Fatbat, If you are going to get it dyno'd, who will you get to do it? I am after any info good/bad for the couple of main contenders at CBA.
I have reached a point that I think mine needs it after the work done (only 1500ks so far tho).
I think I will have to head over CBA way to get it done as there is nowhere that I know of around here.

Sorry for the thread hijack.
Cheers.
Bucky

Bucky I will be using Pete at Robbos. Our engine builder raves about him as do others like Chriso from this forum. He's also happy to tune with non race tuners such as tts or pv if you provide the software/laptop.

Let me know when you're coming to Canberra and I'll meet up with you. How are you finding your bike with the high comp 103 build, Dunn heads and andrews 55 cams?