IDM Products?
09-21-2008 | 09:37 PM
#332
You need to check if there are any leaks around the carb or engine. Once you are sure that you have a good sealed engine. Then you may want to check the needles by removing them and checking for any dirt or something on the needle or in the hsn tube. Just make a reference to where the needles were originally and you should be fine. Make sure that the oring seals are good on the needles.
The engine runs pretty well before half tank of fuel but after that the bogging issue coming back than we checked the temperature is only 120 degree celcius which is the normal running temp. By the way we are running the engine on the 960 , we have already no clue ?? is it the engine problem or the clutch setting? But we use nova base engine on the 960 with no bogging issue with the same clutch setting +- on gap clearance.
Thank you and appreciated for all your help.. wondering if any people have the same issue with the IDM EVO3, Email to Daniel already but not yet reply
09-22-2008 | 03:44 AM
#334
Tech Regular
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Posts: 498
Thank you for the info, but both the engine has the identical problems, we have checked either the leak or the needle oring but problem remain.
The engine runs pretty well before half tank of fuel but after that the bogging issue coming back than we checked the temperature is only 120 degree celcius which is the normal running temp. By the way we are running the engine on the 960 , we have already no clue ?? is it the engine problem or the clutch setting? But we use nova base engine on the 960 with no bogging issue with the same clutch setting +- on gap clearance.
Thank you and appreciated for all your help.. wondering if any people have the same issue with the IDM EVO3, Email to Daniel already but not yet reply
The engine runs pretty well before half tank of fuel but after that the bogging issue coming back than we checked the temperature is only 120 degree celcius which is the normal running temp. By the way we are running the engine on the 960 , we have already no clue ?? is it the engine problem or the clutch setting? But we use nova base engine on the 960 with no bogging issue with the same clutch setting +- on gap clearance.
Thank you and appreciated for all your help.. wondering if any people have the same issue with the IDM EVO3, Email to Daniel already but not yet reply
Like M7 says I would make the clutch hit harder. Sounds to me that with the temp the engine is working ok. It is not that lean on the bottom or it would want to overheat. I would go and work with the clutch some more. You really cannot run the clutch the same as a Nova. I would run like .5 for the clutch gap and maybe even .6. But work with the flyweights and also the spring. Let the clutch hit hard and see if it comes off the corner better. Also are you using a 2033 pipeset are you allowed over there. The wrong pipe will also cause this as well. Or are you running the new pipeset.
09-22-2008 | 09:26 AM
#335
Tech Elite
Joined: Dec 2004
Posts: 2,198
From: The Netherlands
09-24-2008 | 03:43 PM
#336
Tech Addict
iTrader: (21)
Joined: Feb 2006
Posts: 670
From: Iowa
Hi All,
I recently bought 2 21 IDM EVO3 engine and have problem to tuned it right,
The problem is when we apply full throttle on the straight and off throttle into the corner but when apply throttle back the engine tent to bogging which seem like not enough fuel get in the engine, which mean we need to off throttle
again and reapply on throttle and the engine pick up again. we have try to remove the head shim to increase pressure but the problem is still the same, we have tried all the clutch setting but the problem remain.
Appreciated if anyone can help.
Thanx
I recently bought 2 21 IDM EVO3 engine and have problem to tuned it right,
The problem is when we apply full throttle on the straight and off throttle into the corner but when apply throttle back the engine tent to bogging which seem like not enough fuel get in the engine, which mean we need to off throttle
again and reapply on throttle and the engine pick up again. we have try to remove the head shim to increase pressure but the problem is still the same, we have tried all the clutch setting but the problem remain.
Appreciated if anyone can help.
Thanx
I ran my EVO3 IDM for the first time this past weekend. I had a similar issue (and also tried different clutch settings). In the final qualifier the motor was tuned to around 210+f (when going out), and it got a little soft off the corners almost right away. We spent the remainder of the qualifier experimenting with it. I finally had the pitman put the temp gun down and just richen it until it was too rich, and went forward from there. Ended up back at 190f (88c).
The solution to my problem seemed to be that the motor likes to run under 200f. It had BIG hp there, yet running over 5 minutes with fuel to spare. I'm super happy with mine.
09-24-2008 | 05:04 PM
#337
Tech Regular
iTrader: (4)
Joined: Jul 2003
Posts: 498
I'm not sure if this will help, but...
I ran my EVO3 IDM for the first time this past weekend. I had a similar issue (and also tried different clutch settings). In the final qualifier the motor was tuned to around 210+f (when going out), and it got a little soft off the corners almost right away. We spent the remainder of the qualifier experimenting with it. I finally had the pitman put the temp gun down and just richen it until it was too rich, and went forward from there. Ended up back at 190f (88c).
The solution to my problem seemed to be that the motor likes to run under 200f. It had BIG hp there, yet running over 5 minutes with fuel to spare. I'm super happy with mine.
I ran my EVO3 IDM for the first time this past weekend. I had a similar issue (and also tried different clutch settings). In the final qualifier the motor was tuned to around 210+f (when going out), and it got a little soft off the corners almost right away. We spent the remainder of the qualifier experimenting with it. I finally had the pitman put the temp gun down and just richen it until it was too rich, and went forward from there. Ended up back at 190f (88c).
The solution to my problem seemed to be that the motor likes to run under 200f. It had BIG hp there, yet running over 5 minutes with fuel to spare. I'm super happy with mine.
10-03-2008 | 04:19 PM
#338
IDM PICCO P7 EVO 3 .21 onroad
does anyone know the factory needle settings for this mill?
having idle issues,when off the throttle and barrel closes the idle sticks or revs then eventually drops,this is with radio on and off so theres nothing sticking or bindind.
maybe the lsn is rich?
having idle issues,when off the throttle and barrel closes the idle sticks or revs then eventually drops,this is with radio on and off so theres nothing sticking or bindind.
maybe the lsn is rich?
10-03-2008 | 05:16 PM
#339
Tech Regular
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Joined: Jul 2003
Posts: 498
The base if you would like to say would be to set the top needle at slightly about flush with the body and then the low should be about 2-3mm protruding out from the edge of the linkage bracket on the slide. this will be real rich on the bottom. I just do not want to say anything less so that you can get the engine running good where you are located.
10-03-2008 | 05:44 PM
#340
ok thanks,
i got it running and the hsn is about flush and the low side is barely protuding out the barrell,seems good now but still need to run more fuel to see if it will act up.
by the way this engine is a real screamer! holy cow!!
which pipe is recommened for this idm p7 evo 3?
im looking for mid-topend for a very large open track.
will a sirio 2013 do?
i got it running and the hsn is about flush and the low side is barely protuding out the barrell,seems good now but still need to run more fuel to see if it will act up.
by the way this engine is a real screamer! holy cow!!
which pipe is recommened for this idm p7 evo 3?
im looking for mid-topend for a very large open track.
will a sirio 2013 do?
Last edited by helivaguy; 10-04-2008 at 12:05 PM.
10-06-2008 | 05:00 AM
#341
Hi all,
Thank you for all the answer and helps for the bogging issue of the IDM Evo3 .21, We have finally solved the bogging issue for this engine, After we have tried so many solution like tuning, clutch setting, head shim + and -, plug and fuel etc etc.....
The answer and the only solution the get rid of the bogging is related to the clutch system depending on what car are you on it, for us serpent 960 we have to cut the 3 pcs of centrifugal shoe without insert the shoe into the flywheel pin but just to lay in there between the pins which to make the centax to engage or disengage faster when rpm is reduce.. by this will eliminate the bogging issue. Serpent owner also can use the optional parts (Ser 903199). Good luck and happy racing.
By the way....
Our clutch setting for 960 is .6mm gap, .1mm clearance, 1.8mm spring preload with hard long spring.
Thank you for all the answer and helps for the bogging issue of the IDM Evo3 .21, We have finally solved the bogging issue for this engine, After we have tried so many solution like tuning, clutch setting, head shim + and -, plug and fuel etc etc.....
The answer and the only solution the get rid of the bogging is related to the clutch system depending on what car are you on it, for us serpent 960 we have to cut the 3 pcs of centrifugal shoe without insert the shoe into the flywheel pin but just to lay in there between the pins which to make the centax to engage or disengage faster when rpm is reduce.. by this will eliminate the bogging issue. Serpent owner also can use the optional parts (Ser 903199). Good luck and happy racing.
By the way....
Our clutch setting for 960 is .6mm gap, .1mm clearance, 1.8mm spring preload with hard long spring.
10-06-2008 | 06:40 AM
#342
seems like i have a similar 'bog' issue as CH Hobbies with my IDM .12 evo3.
my IDM cant hold a steady idle for >5secs; it'll die off...
on the starterbox, if i off throttle and on throttle before it dies off, it'll bog.
however if i off throttle and immediately on throttle, it'll be fine!
track testing found similar issues, parts of the track where i got to off throttle for 2s or more; it'll bog when i on throttle back.
my LSN too rich?
my IDM cant hold a steady idle for >5secs; it'll die off...
on the starterbox, if i off throttle and on throttle before it dies off, it'll bog.
however if i off throttle and immediately on throttle, it'll be fine!
track testing found similar issues, parts of the track where i got to off throttle for 2s or more; it'll bog when i on throttle back.
my LSN too rich?
10-06-2008 | 07:18 AM
#343
Tech Master
iTrader: (13)
Joined: Jan 2004
Posts: 1,486
seems like i have a similar 'bog' issue as CH Hobbies with my IDM .12 evo3.
my IDM cant hold a steady idle for >5secs; it'll die off...
on the starterbox, if i off throttle and on throttle before it dies off, it'll bog.
however if i off throttle and immediately on throttle, it'll be fine!
track testing found similar issues, parts of the track where i got to off throttle for 2s or more; it'll bog when i on throttle back.
my LSN too rich?
my IDM cant hold a steady idle for >5secs; it'll die off...
on the starterbox, if i off throttle and on throttle before it dies off, it'll bog.
however if i off throttle and immediately on throttle, it'll be fine!
track testing found similar issues, parts of the track where i got to off throttle for 2s or more; it'll bog when i on throttle back.
my LSN too rich?
10-12-2008 | 07:02 AM
#344
IDM lsn
still having issues with the idle hanging with my IDM p7/p9 Evo3 .21.
the hsn is flush and the lsn is about 1 turn out from flush,on the starterbox i can set the lsn and idle screw and the idle will be nice and low and idle beautiful with good acceleration(i do the pinch test and how long it will idle method)but when actually running it and come off the throttle it will hang most of the time and i have to brake the throttle trigger to get it to drop its almost like there is a binding but there isnt because i try it bothways manual and via transmitter w/radio on and off.
the acceleration is crisp and strong with good smoke and oil mist out the stinger,i am using both the idm t7 and os p7 glowplugs with byrons gen2 20%.
i have also tried different clutch setups and diferent tuned pipes and the front bearing has no leak from what i see and when i stall the engine with my finger over the carb she dies instantly so i would think no vacuum leaks.
i have even compltely dissasembled the engine along with the carb and everything still looks brand spanking new.
ps this engine used to belong to 1/8 on road racer arron buren when i got it it had just under 1 gallon including break-in.
it just acts like the lsn is rich and the idle screw is open to far.
any help is appreciated.
the hsn is flush and the lsn is about 1 turn out from flush,on the starterbox i can set the lsn and idle screw and the idle will be nice and low and idle beautiful with good acceleration(i do the pinch test and how long it will idle method)but when actually running it and come off the throttle it will hang most of the time and i have to brake the throttle trigger to get it to drop its almost like there is a binding but there isnt because i try it bothways manual and via transmitter w/radio on and off.
the acceleration is crisp and strong with good smoke and oil mist out the stinger,i am using both the idm t7 and os p7 glowplugs with byrons gen2 20%.
i have also tried different clutch setups and diferent tuned pipes and the front bearing has no leak from what i see and when i stall the engine with my finger over the carb she dies instantly so i would think no vacuum leaks.
i have even compltely dissasembled the engine along with the carb and everything still looks brand spanking new.
ps this engine used to belong to 1/8 on road racer arron buren when i got it it had just under 1 gallon including break-in.
it just acts like the lsn is rich and the idle screw is open to far.
any help is appreciated.
10-12-2008 | 08:48 AM
#345
These motors like alot of fuel on the bottom end. Sounds like your still too lean on the bottom. I know my motor, on the bottom screw, I have about 2mm of the screw out on the case. My top needle is a pinch inside the case. If your pinch testing count to about 6. Should get you closer. Let me know....