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+--- Thread: Myna 7mm vs Floyd 7.5mm Elements (/showthread.php?tid=2207)
Myna 7mm vs Floyd 7.5mm Elements - jonbobshinigin - 01-31-2011
I know this has been tossed around in the M75 thread, but this is a bit more focused. Let's say that one wanted to go the Myna route since DervTuning is busy...I have a couple questions:
Supposedly the 7.5mm allow a smoother idle, which is preferable for those of use who want daily driver and not just a race car. Is this true?
Obviously Myna knows what they are doing so why are they not using a 7.5 already instead of the 7.0?
If the 7.5mm are better for idle, then it seems that a Myna build with these 7.5mm is the way to go.
I like the idea of a Myna pump since they are adjustable, what kind of adjustments do they allow?
Any thoughts are welcome!
RE: Myna 7mm vs Floyd 7.5mm Elements - tomnik - 01-31-2011
(01-31-2011, 02:14 PM)jonbobshinigin Supposedly the 7.5mm allow a smoother idle, which is preferable for those of use who want daily driver and not just a race car. Is this true?a smooth idle comes from good quality elements AND good bench adjustment. Possible with both types of elements.
(01-31-2011, 02:14 PM)jonbobshinigin Obviously Myna knows what they are doing so why are they not using a 7.5 already instead of the 7.0?this was also my idea but the time I asked Myna's 8mm elements were already their choice.
(01-31-2011, 02:14 PM)jonbobshinigin I like the idea of a Myna pump since they are adjustable, what kind of adjustments do they allow?
boost enrichment via external actuator, AFAIK.
Myna is a very good diesel shop using 7mm elements (and others).
Floyd M7.5 are just elements.
One thing is the stuff/parts the other thing is the knowledge of adjustment.
Tom
RE: Myna 7mm vs Floyd 7.5mm Elements - ForcedInduction - 02-01-2011
Myna is the complete package. They have done many pumps and know exactly what settings to use for each engine type.
Yeah, you'd have more potential with 7.5mm and possibly better idle, but you'd be left having somebody with little/no tuning experience for these engines guesstimate the governor adjustments.
To me Myna is worth the extra $500 for pretty much being plug-n-play; adjusting the transmission, maximum fuel and aneroid is all you'd have left to do (assuming you already have the desired airflow mods).
RE: Myna 7mm vs Floyd 7.5mm Elements - winmutt - 02-01-2011
(02-01-2011, 12:24 PM)ForcedInduction To me Myna is worth the extra $500 for pretty much being plug-n-play; adjusting the transmission, maximum fuel and aneroid is all you'd have left to do (assuming you already have the desired airflow mods).
I agree with this as well. I'm all for finding someone stateside that could do it to save a few pennies. One person that is willing to get the experience by repeated tries. I just haven't found the person yet. There has to be some diesel tuner with some VE experience out there. They were used limitedly in Dodges IIRC and certainly in a number of tractors....
RE: Myna 7mm vs Floyd 7.5mm Elements - muuris - 02-01-2011
Mynä-pump has settings for max fueling, ALDA operation and max revs without disassembling the pump. For many years the Mynä 7mm pumps have had nice, almost stock-like idle. I bet they won't build you a pump with your choice elements, but with their 7mm or 8mm. Don't see the point using other than those, as they have been proven very good.
RE: Myna 7mm vs Floyd 7.5mm Elements - ForcedInduction - 02-01-2011
Mc Kinney Turbo & Fuel Pump is one place I'd trust. He has been in business 40 years and stays profitable entirely on word of mouth advertising.
RE: Myna 7mm vs Floyd 7.5mm Elements - MTUPower - 02-02-2011
(02-01-2011, 02:13 PM)ForcedInduction Mc Kinney Turbo & Fuel Pump is one place I'd trust. He has been in business 40 years and stays profitable entirely on word of mouth advertising.I have loads of future modifications to do to realize the full potential of my Myna pump. My stock turbo with a IC putting out up to 25 psi boost (at 80 mph floored, otherwise top boost is about 20) does not come close to burning all the fuel if the dark smoke I can put out is an indicator of unburned fuel. I know both the IC and turbo need to be upgraded, and other smaller things to be done. All in all I'm very happy with the Myna pump. I'm still tweaking the transmission modulations, but it's now acceptable. I also would like to cut down on idle smoke output, and smoke output at the time from idle to 1300 rpm. With the timing at 24 the engine sounds like a Cummins, while before it was whisper quiet. Prior the transmission shifted perfectly also.
RE: Myna 7mm vs Floyd 7.5mm Elements - jeemu - 02-04-2011
If someone need BIG power and also good working.
It s Mynä Diesel 8mm model. Little modified prechambers hmm.
RE: Myna 7mm vs Floyd 7.5mm Elements - jonbobshinigin - 02-05-2011
Hey MTU, how was your communication with Myna? Fairly easy transaction? I know there is a vast language barrier. Are there options for a super tune vs a moderate tune 7mm pump, or is that all taken care of by the adjustments?
RE: Myna 7mm vs Floyd 7.5mm Elements - muuris - 02-06-2011
(02-05-2011, 11:48 PM)jonbobshinigin Are there options for a super tune vs a moderate tune 7mm pump, or is that all taken care of by the adjustments?Adjustments. You could limit max fueling so it feels like stock, if you wanted to.
RE: Myna 7mm vs Floyd 7.5mm Elements - aaa - 02-06-2011
(02-05-2011, 11:48 PM)jonbobshinigin Hey MTU, how was your communication with Myna? Fairly easy transaction? I know there is a vast language barrier. Are there options for a super tune vs a moderate tune 7mm pump, or is that all taken care of by the adjustments?
He bought it used.
RE: Myna 7mm vs Floyd 7.5mm Elements - winmutt - 02-06-2011
Wow. Anyone want to sell me a used myna pump?
RE: Myna 7mm vs Floyd 7.5mm Elements - MTUPower - 02-09-2011
(02-06-2011, 07:14 AM)aaaYep- new was never installed, so my engine is the first it's seen. I have too much smoke at idle however. Timing is set at 24 BTDC via drip. Jeemu told me the timing is too advanced.(02-05-2011, 11:48 PM)jonbobshinigin Hey MTU, how was your communication with Myna? Fairly easy transaction? I know there is a vast language barrier. Are there options for a super tune vs a moderate tune 7mm pump, or is that all taken care of by the adjustments?
He bought it used.
RE: Myna 7mm vs Floyd 7.5mm Elements - jellydonut - 02-10-2011
Does Mynä Diesel have a website at all or just physical address and phone #?
I know a Finn that can be my middle man, but still :p
RE: Myna 7mm vs Floyd 7.5mm Elements - winmutt - 02-10-2011
No website. Their email address is floating around. Best bet is to wake up at 4am and call them.
RE: Myna 7mm vs Floyd 7.5mm Elements - jellydonut - 02-10-2011
(02-10-2011, 11:08 AM)winmutt No website. Their email address is floating around. Best bet is to wake up at 4am and call them.
Well I am in Norway so I don't need to adjust my schedule
but I guess that's what I'll be doing.
RE: Myna 7mm vs Floyd 7.5mm Elements - MTUPower - 02-10-2011
(02-10-2011, 05:42 PM)jellydonut Well I am in Norway so I don't need to adjust my scheduleAsk them what timing the recommend for the pump- I need definitive answer after hearing what Jeemu said.
RE: Myna 7mm vs Floyd 7.5mm Elements - bonden_85 - 02-10-2011
(02-10-2011, 09:04 PM)MTUPower(02-10-2011, 05:42 PM)jellydonut Well I am in Norway so I don't need to adjust my scheduleAsk them what timing the recommend for the pump- I need definitive answer after hearing what Jeemu said.
The mynä-pumps have all different timing settings, don't know why but of all the ones that I've seen every one of them had their own settings.
RE: Myna 7mm vs Floyd 7.5mm Elements - tomnik - 02-11-2011
Timing is more related to fuel type than to the shop that made the pump.
Do you have a retarding edge on your elements?
My experience (after speaking with diesel gurus) is 24 -20 deg BTDC.
24 with higher output, towards 20 with moderate output.
Easy to check: Go late until you see smoke on full/higher load. Then you know that end of injection gets too late.
Tom
(02-10-2011, 09:04 PM)MTUPower Ask them what timing the recommend for the pump- I need definitive answer after hearing what Jeemu said.
RE: Myna 7mm vs Floyd 7.5mm Elements - jeemu - 02-11-2011
What is type in the side of that pump?
Mynä told at there is 5hree differend version of those
RE: Myna 7mm vs Floyd 7.5mm Elements - MTUPower - 02-11-2011
is it on this side? This is my pump... BTW I tweaked the settings today and got much less smoke at idle while still retaining nearly full power at higher rpms. Now I need to adjust the tranny vaccuum settings.
RE: Myna 7mm vs Floyd 7.5mm Elements - tomnik - 02-12-2011
which screw did you adjust to reduce idle smoke?
Tom
RE: Myna 7mm vs Floyd 7.5mm Elements - MTUPower - 02-12-2011
(02-12-2011, 02:01 AM)tomnik which screw did you adjust to reduce idle smoke?#1- which stops the lever from full travel to the right. #2 does that also, but #1 is a easier, finer adjustment. It also cut down smoke at upper rpm levels also- I am way under boosted across the rpm range. I see no major difference in power/speed after the tweaking, just less smoke.
Tom
RE: Myna 7mm vs Floyd 7.5mm Elements - yankneck696 - 02-12-2011
So, if you get the boost, you get the major difference, right?
Ed
RE: Myna 7mm vs Floyd 7.5mm Elements - MTUPower - 02-12-2011
(02-12-2011, 08:08 PM)yankneck696 So, if you get the boost, you get the major difference, right?I assume if I add more air I'd burn the extra fuel I have available so yes- I'd have a major difference as in more power.
Ed
After looking at the OP, I have to say my idle is very smooth, and the engine returns to idle quickly. At 24 degrees timing the engine does sound like a truck diesel- much louder than the stock IP was.
RE: Myna 7mm vs Floyd 7.5mm Elements - tomnik - 02-13-2011
go late by 2-3 deg with timing, should not alter power neither smoke but runs more quiet.
Tom
RE: Myna 7mm vs Floyd 7.5mm Elements - jeemu - 02-13-2011
I asked Mynä of that timing. It depends when pump is made. what timing should use.
15 or original.