Why & How to Cool Down Your Twin Cam Engine
#11
#12
Join Date: Dec 2009
Location: Niagara, Ontario, Canada
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#13
Good info Kevin, love my Deluxe tank lift, does help with the air flow plus makes it easier to clean. Also have a 587 with remote filter, going to have to think about the new connectors for the bolts, mine is an older style and have to keep changing the hoses since they get too loose on the bolts. Would like to eventually do the oil filter relocation also.
#14
OR---- as I remember reading in here for yrs that some members claimed that by using a certain Syn Oil (starts with an "AMS),, It alone will drop your oil temp 30-40 Decreases..
Myself, back in 07 when I did the 1K service I went with a SE/AC, Rush pipes and the SERT with a good Dyno and started using a Syn oil,, the temp went from 255* to around 240* on the oil temp gauge...
later after 10k miles I added some Andrews 26's, another dyno and that took the oil temp down another 15*'s.
for the last 8yrs and 40K miles its almost always between 220 to 230 on the road unless in heavy city traffic.
Myself, back in 07 when I did the 1K service I went with a SE/AC, Rush pipes and the SERT with a good Dyno and started using a Syn oil,, the temp went from 255* to around 240* on the oil temp gauge...
later after 10k miles I added some Andrews 26's, another dyno and that took the oil temp down another 15*'s.
for the last 8yrs and 40K miles its almost always between 220 to 230 on the road unless in heavy city traffic.
#17
DK has both.
Tank lift=more air circulation over top of heads
EBS=External Breather System
Reroutes your head breathers outside the air intake.
Stock harley configuration routes them directly back into your intake.
There are several threads here with the mod for making your own..
I have a stock setup with EBS mod I could sell.
Tank lift=more air circulation over top of heads
EBS=External Breather System
Reroutes your head breathers outside the air intake.
Stock harley configuration routes them directly back into your intake.
There are several threads here with the mod for making your own..
I have a stock setup with EBS mod I could sell.
Last edited by Uncle Fuzzy; 03-22-2017 at 07:02 PM.
#18
Just my opinion. And I am certain some people will disagree. I have used some type of tuner on every FI bike I have ever owned. And have had some Dyno tuned. In my experience you are not going to get a huge difference in heat reduction with tuning. It will help some, but not all that much. And unless you can duplicate the exact same temperature, humidity and riding distance from one day to another its really hard to tell exactly how much difference it makes.
#19
#20
Just my opinion. And I am certain some people will disagree. I have used some type of tuner on every FI bike I have ever owned. And have had some Dyno tuned. In my experience you are not going to get a huge difference in heat reduction with tuning. It will help some, but not all that much. And unless you can duplicate the exact same temperature, humidity and riding distance from one day to another its really hard to tell exactly how much difference it makes.
Modern FI engines running under electronic management can very safely run leaner, increasing fuel economy and reducing wear. It is not uncommon for engines to achieve 300,000 or more miles before overhaul instead of the typical 80,000 I grew up with running carbureted engines with NO emissions controls. Reason, AFR being constantly maintained by computer control at about 14:1, just on the rich side of stociometric value for gasoline, results in max power, virtually complete burning (minimum pollution) and, in my opinion, almost no washdown of the cylinder walls by fuel.
Screwing around with this seems to me to result in increased cylinder wear over the lifetime of the engine, not decreased wear.
Last edited by davidearlcox; 04-10-2017 at 06:28 PM. Reason: grammer correction