Holy Grail -vs- Dynojet PCV - Honda Fury Forums: Honda Chopper Forum
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post #1 of 50 (permalink) Old 01-06-2017, 07:29 PM Thread Starter
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...more to come when it warms up around here.


Last edited by pafury1; 01-08-2017 at 03:13 PM.
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post #2 of 50 (permalink) Old 01-06-2017, 09:00 PM
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Thanks for posting.. I've been anxiously awaiting a real world comparison of the reflash such as a 1/4 mile run or what you did..
I have the Cobra 3-pot with intake and pipes.. I wonder how I'd fare against the 2 setups in the 1/4 miles.. a car length give or take behind maybe?
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post #3 of 50 (permalink) Old 01-06-2017, 10:29 PM
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I ve had the reflash for 3-4 months now..with 750 rpm...never stalled or even came close...runs like a bat outa hell.....got no idea what he's talking about.
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post #4 of 50 (permalink) Old 01-06-2017, 10:48 PM
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Originally Posted by pafury1 View Post
Ok guys here is my experience with the "Holy Grail" -vs- Dynojet PCV with Auto Tune.. I have a friend that had the "holy Grail" done to his stock computer. First off his bike is always stalling out at Idle he has it set for 750 rpm, so my opinion on this stalling issue is dependent on the atmospheric pressure, it has good days and bad days depending on the weather. in the 1/4 mile the PCV always wins and we ride each others bike to be sure it isn't the rider. so with that being said he is locked into the tune that the "holy grail" tuner set it to. I can auto-tune my PCV every time I ride it so atmospheric pressure is not a problem for me it runs at peak all the time regardless of weather. on a good note he does get better gas mileage on his bike but in my opinion if you not burning gas your not getting performance so yeah i do suffer with gas mileage. Me being a motor head i like to play with my tune I know that's not for everyone but i like that option. We will have some more testing done this riding season but at this point my friend wants to know how to go back to stock and then add the PCV if that is even possible..so just letting you know my experience so far with the testing...more to come when it warms up around here.
P.S I am not bashing anyone this is just a test
Curious what other mods he has done to his bike???

When you say in the 1/4 mile the PCV always wins, how was this tested? At a track? Do you have trap speeds? Beats it by how much are we talking?

If he is having stalling issues then it sounds like he needs to disconnect the battery and let the IAC valve relearn by not touching the throttle until it fully warmed up. My idle is set at 700 rpm and I have zero stalling issues, some guys have theirs set at 660rpm and no problems so I'm thinking it is failure to follow proper set up directions. Atmospheric pressure shouldn't play a role in it since Honda installed a MAP sensor it should all be accounted for. Does it stall at idle with no one on it or is it stalling while letting out the clutch? It takes a lil getting used to the lower idle and people often stall while trying to re train themselves the proper clutch and throttle ratio.

P.S. I don't feel bashed, I would just like some more info. The devil is in the details as they say. To say the PCV beats the reflash every time in the 1/4 mile but not give any specific details about mods to both bikes or by how much leaves a lot to the imagination.


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post #5 of 50 (permalink) Old 01-06-2017, 11:04 PM
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No ill feelings here. I made my choice, quite happy with it. My idle is set at 750, I run at elevated altitudes all the time. Never stalled one. Wonder what is going on there...
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post #6 of 50 (permalink) Old 01-07-2017, 05:20 PM
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Tune keeps popping in my head. Goes something like "Troll Troll, Troll your boat..."
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post #7 of 50 (permalink) Old 01-08-2017, 05:48 AM
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Originally Posted by pafury1 View Post
First off his bike is always stalling out at Idle he has it set for 750 rpm, so my opinion on this stalling issue is dependent on the atmospheric pressure, it has good days and bad days depending on the weather.
Running the Re-flash and idle @700RPM my bike had some idling stalling issues in the beginning too. Cleaned the throttle body and the IAC valve inside and out with Valvoline Carburattor Cleaner. Proper start-up procedure. > Problem solved.

Stalling when getting the bike moving is an operator's error. Re-learn operator. > Problem solved.

Blue 2010. #1 Euro Re-flashed ECU. Oil temp & pressure gauges. J & H on stock muffler. 240 Metz on 7.75" rim. Own aircleaner. Integrated tail/brake/indicator light. No pair valve. Sort of T-mod. Restyled seat. Rad rad cover. To be continued . . . .
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post #8 of 50 (permalink) Old 01-10-2017, 10:27 PM
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Bump to the top.... Still waiting on some factual details and not just base less claims.


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post #9 of 50 (permalink) Old 01-10-2017, 11:24 PM
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Running the Re-flash and idle @700RPM my bike had some idling stalling issues in the beginning too. Cleaned the throttle body and the IAC valve inside and out with Valvoline Carburattor Cleaner. Proper start-up procedure. > Problem solved.

Stalling when getting the bike moving is an operator's error. Re-learn operator. > Problem solved.
that is major factor especially since the idle is so low , I have a dynojet V model no.025 and an autotune , I went with the dynojet because I have used them since they where used on carbs and you had to change the needles , and they have never left me down , In my opinion it all boil down to preference . If It wasn't because I needed fuel management I could care less about how fast the fury can go at the 1/4 mile ,or what cruiser it can beat . its pointless to me the fury is a cruiser .if I want a fast crusier I would have gotten the M109 , there isn't any vtwin that can touch that bike, ( vmax isn't a vtwin so it don't count)

velorator intake/cobra exhaust/PCv with autotune/
avon gattling grips/kuryukan switch housing,razor mirrors,turn signal bezel,zombie mirrors/spiked cyclinder heads .and forks
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post #10 of 50 (permalink) Old 01-11-2017, 01:35 PM
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that is major factor especially since the idle is so low
The low idle was only chosen 'cause of the sound.
The stock 930 RPM always runs like it is still warming up on high idle even when the fan is kicking in at 200 F.

Gimme the Potato-Potato-Potato for some added coolness
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Blue 2010. #1 Euro Re-flashed ECU. Oil temp & pressure gauges. J & H on stock muffler. 240 Metz on 7.75" rim. Own aircleaner. Integrated tail/brake/indicator light. No pair valve. Sort of T-mod. Restyled seat. Rad rad cover. To be continued . . . .
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