Rev Performance EMS tuner review

[cody]

2009 Street Glide. Screamin' Eagle Heavy Breather, Cycle Shack slip-on mufflers. Only have 300 miles since EMS installation. Bike runs excellent. No rideability issues at all. Back road riding, going through small towns where I was getting 43 mpg last year I am getting 46 mpg although I don't think 300 miles is a long enough test. Haven't gone on a long thruway ride yet. Will post when I get more miles on.

[cody]

hrdtail78
I can tell you that there is now a different ecm calibration ID number in my ecm when I got it back from Rev Perf

[Sc00ter]

Does anybody know if the dealerships can access the ECM after Rev Perf does their thing?

From the Rev, Perf. website frequently asked questions...

"Does the RP Precision system disable or interfere with the ability of the dealerships to trouble shoot and/or diagnose with the Scan Tool? No. The ECM will function completely normal and will produce DTC codes, logic diagrams and diagnostic reports as normal. "

[mike 120]

I presently have about 400 miles on my 120 with ems, very happy with it, rode today with temps in upper 80's, couldn't help myself, had to check head temps with IR gun, 290 front, 295 rear, both at plug base, fuel mileage 43 mpg, and that's getting into it not just cruising. Very satisfied.
Mike 

[Sc00ter]

I presently have about 400 miles on my 120 with ems, very happy with it, rode today with temps in upper 80's, couldn't help myself, had to check head temps with IR gun, 290 front, 295 rear, both at plug base, fuel mileage 43 mpg, and that's getting into it not just cruising. Very satisfied.
Mike 

Any idea what your oil temperature is? 

[mike 120]

I presently have about 400 miles on my 120 with ems, very happy with it, rode today with temps in upper 80's, couldn't help myself, had to check head temps with IR gun, 290 front, 295 rear, both at plug base, fuel mileage 43 mpg, and that's getting into it not just cruising. Very satisfied.
Mike 

Any idea what your oil temperature is?

Yes, using a oil tank dipstick, which I verified accuracy in boiling water, backroads 2k-3k rpm about 210, steady highway cruising a bit over 3k, it will creep up to 235 , this is with temps in mid 80's

[Sc00ter]

I presently have about 400 miles on my 120 with ems, very happy with it, rode today with temps in upper 80's, couldn't help myself, had to check head temps with IR gun, 290 front, 295 rear, both at plug base, fuel mileage 43 mpg, and that's getting into it not just cruising. Very satisfied.
Mike 

Any idea what your oil temperature is?

Yes, using a oil tank dipstick, which I verified accuracy in boiling water, backroads 2k-3k rpm about 210, steady highway cruising a bit over 3k, it will creep up to 235 , this is with temps in mid 80's

I see about the same temps...

[Thumper Buttercup]

We'll we are breaking in our bike and have a bit over 240 miles so far, I'm getting a
bit of heat off the rear cylinder when going down the road and I'm running Rush
ceramic pipes.

Just stopping my front was reading about 280 but the rear is reading 320.  This
reading was taken with a IR right after shutdown.

My plugs are looking a bit dirty, we are averaging about 37 mpg, this is mostly 50-58 mph
with a 20 mile run at 65 mph.

I talked to Rev today and they have not done many bikes with the 48 cams.  It's
looking like we will have to dyno to get a AFR on the bike after it's broke in to
get the bike figured out.  We'll give her a bit more miles, they did say they probably
had our idle too rich.

I also noticed this windy weekend that every now and then when the wind was right
I would smell fuel.

When doing the initial heat cycles the front only got up to about 165 degrees and the
rear stayed about 10-15 degrees cooler.

The bike runs great and pulls hard, we've kept the rpm's under 3000 for the break in.

[PanHeadRed]

>I was pleased with the thundermax and the support i got .............. my anxiety level has dropped and I am just enjoying the ride.<


and 

[Thumper Buttercup]

I want to make a statement here on our setup, looks like we are having an
issue with our exhaust coming loose.  We are pulling our exhaust and reinstalling
everything after cleaning everything up.  We are adding lock washers to help
keep our nuts tight.  We'll update as soon as we get it back together and get some
good weather to ride in.

[cody]

What exhaust are you using ?   What style gaskets ?

[Thumper Buttercup]

Hey cody,

   We are using Rush ceramic headers, we installed the flat style gaskets,
we are replacing them with Harley's wedge gaskets.  The headers were
installed with new clamps and nuts.

[cody]

I believe the Rush headers and early D&D are among the pipes that need the O2 bungs trimmed down so the sensor sits more in the exhaust. (Wondering if this is part of your rich running issue)   I have a D&D that I just put on. Don't think it is an early made pipe but looking at a diagram that Steve Cole posted it looked like the bungs needed some trimming so I did.
The D&D also uses the flat gaskets (I used Screamin' Eagle) which leaked. I then used H-D oem gaskets which sealed but I was only able to get the stud nut on to being flush with the end of the stud. I am hoping that will be enough to keep the nut locked on. After one heat cylcle I was able to move one nut at each port only slightly. After 150 mile ride they are still tight.

[Thumper Buttercup]

Ours were long also, we checked them before we were ready to install and found it.  We shipped the headers to Rev-Perf and had them change out the bungs, Rush had also left part of the exhaust pipe in the 02 area and they took care of that also.

We are pulling the exhaust today, but with all the damn rain might not get out until next week.

[tracerbob]

I'm impressed with this product and just about ready to pull the trigger on one.  Who has the best price?

[gabbyduffy]

I believe the Rush headers and early D&D are among the pipes that need the O2 bungs trimmed down so the sensor sits more in the exhaust. (Wondering if this is part of your rich running issue)   I have a D&D that I just put on. Don't think it is an early made pipe but looking at a diagram that Steve Cole posted it looked like the bungs needed some trimming so I did.
The D&D also uses the flat gaskets (I used Screamin' Eagle) which leaked. I then used H-D oem gaskets which sealed but I was only able to get the stud nut on to being flush with the end of the stud. I am hoping that will be enough to keep the nut locked on. After one heat cylcle I was able to move one nut at each port only slightly. After 150 mile ride they are still tight.

               I also had to trim my D&D 02 bungs to get the 02 sensors to get a good read with the percision ems. My bike ran real rich until I shaved the bungs. After I fixed the bungs the bike ran great.

[mike 120]

Gabby, just curious as to how you determined it being real rich? Fuel mileage, driveability? Because I have a Boarzilla bought in 2008 never touched the bungs and get low to mid 40's depending on my right hand.
Mike

[cody]

Runs good, MPG not as adveritised.

[Sc00ter]

120r motor.... runs fantastic...  40 mpg at 70 mph highway speeds.   

[gabbyduffy]

Gabby, just curious as to how you determined it being real rich? Fuel mileage, driveability? Because I have a Boarzilla bought in 2008 never touched the bungs and get low to mid 40's depending on my right hand.
Mike

I have a buddy that's a racer and As soon as I pulled in his driveway he told me something was wrong. He also told me that he smelled fuel in the oil. So I posted what my problem was and Don Dorfman from Deweys told me that the bungs needed to be trimmed on the D&D's.
                  So Brian Nallin gave me his UPS code and told me to overnight him the pipe. So I sent the pipe to REVOLUTION PERFORMANCE and they welded some new bungs on free of charge and overnighted the pipe back to Cleveland. It cost Brian Nallin over $600 in shipping alone. When I first talked to Brian about my problem he told me that he stands behind his product and he will do whatever it takes to make my bike run rite, even if he has to fly a tech to Cleveland to do it.
                  In my book BRIAN NALLIN and revolution performance are class acts.

[Thumper Buttercup]

We had a problem with ours and Brian and Josh flew in Thursday and worked
and tested our bike all day, she is running much better now and running
very strong.  We offered to trailer to them but Brian would have nothing to
do with it and they came to us.  Top notch work, it looks like our throttle
adjustment was a probable cause to all our problems.

So they spent several hours riding and testing and tweaking our tune.

[gabbyduffy]

We had a problem with ours and Brian and Josh flew in Thursday and worked
and tested our bike all day, she is running much better now and running
very strong.  We offered to trailer to them but Brian would have nothing to
do with it and they came to us.  Top notch work, it looks like our throttle
adjustment was a probable cause to all our problems.

So they spent several hours riding and testing and tweaking our tune.

How does the throttle adjustment affect the tune?

[Thumper Buttercup]

If the Throttle cables are not properly adjusted then the butterfly will not
open all the way and the throttle position sensor will reports that the butterfly
is open but it is not and too much fuel is thrown in.

We adjusted ours after the fuel tank was installed and Josh did not like
our looseness, so I grabbed a couple wrenches and loosened the lock nuts
but I think I loosened it more that morning, Josh pulled the air filter and
the butterfly valve would only open about half the way which would have
created the bike running too rich.

Thursday is looking good for a run for us so we will report back.

[Steve Cole]

Adjusting the cables is an important thing but I must correct you on the other part.

The TPS will only report the Blade position, so if it will only open half way then that is all that get reported to the ECM. The TPS is attached to the throttle blade shaft NOT the cables.

[Thumper Buttercup]

Adjusting the cables is an important thing but I must correct you on the other part.

The TPS will only report the Blade position, so if it will only open half way then that is all that get reported to the ECM. The TPS is attached to the throttle blade shaft NOT the cables.

Thanks Steve,  I've been burned out the last few days and this has been still nagging
me and I could not put a finger on it.  Heck I just put a new throttle position sensor
when we did the rebuild but did not think twice about it the other day.

We'll finally get a ride on Thursday and see how she goes and see if the problems are
gone.  Thanks for pointing that out, I've been thinking on this and talking with the wife
saying something is not right but you put the finger on what has been bothering me.