Question for Steve Cole
Hi Steve, I was originally running DHA358-01 and was getting oil temps in the 210-230 range
I put 255 cams in and flashed DAD358-01 MT8. Did some vtunes and was still getting the same temps. I noticed those 2 cals have the same afr table.
I've now gone DAD358 -03 MT9, done a few Vtune runs and I've noticed my temps are up to 250-255, This is in temps of 70-80.
I noticed the afr's in the MT9's are leaner in closed loop and in the 20kpa column.
Would copying over the MT8 afr to the newer cal be a safe bet to lower the temps or are those temps OK and any particular reason for the leaning out in the MT9 AFR's?
I've been racking my brains to find a cause for the higher temps and this is all I can think of at this stage.
The bike was running very nicely on the MT8 and still is with the MT9 however I am noticing the extra temp between the legs.
Thanks in advance Dave.
Steve, I have a feeling it's the other columns that might be adding heat.. The MT9's are leaner all over. Wouldn't that put more heat into the motor?
I noticed both the international cals and the 255 bagger cal are both leaner now. Were the MT8 cals too rich?
Would it be prudent to run the MT8 afrs in th MT9 cal and see if that cools it down?
Thanks.
103 with a arlen ness big sucker and V&H slipons. No head work. I was meticulous in the details of the cam install and all related possible problems EG ehaust leaks. The bike is running exceptionally well after 3 Vtunes.
I'm just waiting on Steve to pick the Flight Recordings apart.
Going to be very interesting to see what Steve finds. I'll keep you posted.
Yes, stock 103. 2013 model. Just riding it around. Taking it pretty easy hence the bagger cams as I ride under 4k almost all the time. Tinkering around with the motor, I guess you could say it's one of my hobbies.
So, do you have the 255's in your bike ATM? Did you go adjustables or pull the heads off?
Lushy is a very reputable tuner in sa. I think he's suggesting that the 255 cam is not well suited to the compression your bike is set at. The 255 cam is an EPA emissions friendly cam which results in heat. Early intake close causes early cylinder fill which is why you might want lower compression to begin with than you have to make it less sensitive to heat and detonation. To avoid these issues at the compression your bike is set at requires a good tune and good fuel which the yanks have over us. I'm no expert but that's my understanding of what the issue is with this cam selected to your bike. Am sure I'll be corrected if I'm on the wrong track ??
Sweet I'm always happy to take on board sugestions.. I haven't taken it to a pro tuner so it's only as good as I've done.
Could well be why the baggers have gone to water cooling. As far as I know they run 255's standard. The thing that's strange is the MT8 cal ran 20-30F cooler.
That MT8 and the MT9 are the same as far as I know with the exception of the AFR's and some internal things that aren't changeable. I could well be wrong on that point however.
That's what I think I'll do. Copy over the richer AFR's and test. My lasy 4 vtune looked good, no knock at all.