R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro On-Road > Onroad Nitro Engine Zone

Reply
 
Thread Tools Search this Thread
Old 10-19-2009, 06:01 PM   #91
Tech Elite
 
Slo-MTX4's Avatar
 
Join Date: Dec 2004
Location: Brisbane
Posts: 2,479
Trader Rating: 1 (100%+)
Send a message via ICQ to Slo-MTX4
Default

Sorry thats deg celcius not Fahrenheit.

What are the timing differences? Is the timing for more bottom or top end?
__________________
Podified Picco/MRX5/Futaba/Savox

PODIFIED ENGINES/Trackside RC
Slo-MTX4 is offline   Reply With Quote
Old 10-19-2009, 10:28 PM   #92
Tech Master
 
GREGORY!'s Avatar
 
Join Date: Jun 2006
Location: Greece
Posts: 1,075
Trader Rating: 1 (100%+)
Default

he is talking about Celsius not Fahrenheit.
GREGORY! is offline   Reply With Quote
Old 10-20-2009, 12:44 AM   #93
M7H
Tech Elite
 
M7H's Avatar
 
Join Date: Dec 2004
Location: The Netherlands
Posts: 2,196
Default

Quote:
Originally Posted by Slo-MTX4 View Post
Is there much difference between the IDM and EDO versions?
As I have them both, I can give comment on that.
As xspower said, the difference can be found in the crank, the IDM has more work done to it.
The EDO on the other hand, has a better cooling head and also the "aligned" conrod...
Difference in performance?
Not really....
__________________
Serpent
M7H is offline   Reply With Quote
Old 10-20-2009, 12:48 AM   #94
Tech Elite
 
Slo-MTX4's Avatar
 
Join Date: Dec 2004
Location: Brisbane
Posts: 2,479
Trader Rating: 1 (100%+)
Send a message via ICQ to Slo-MTX4
Default

What do you mean by the aligned conrod?

Thats great about the performace.

How often do you change rods M7H?
__________________
Podified Picco/MRX5/Futaba/Savox

PODIFIED ENGINES/Trackside RC
Slo-MTX4 is offline   Reply With Quote
Old 10-20-2009, 01:54 AM   #95
M7H
Tech Elite
 
M7H's Avatar
 
Join Date: Dec 2004
Location: The Netherlands
Posts: 2,196
Default

I don't know what it exactly means, but I think aligned means that the big end and small end of the conrod are measured and are exactly parrallel to each other....
So the conrods are selected....

Replacement interval depends heavily on how you use them.
I race them hard, and replace them every 5 liters of fuel.
With an older engine I had (Mega DSII) I tested and even reached 10 liters on a conrod, but beter safe then sorry, that's why I change them every 5 liters...
__________________
Serpent
M7H is offline   Reply With Quote
Old 10-20-2009, 03:56 PM   #96
Tech Regular
 
Join Date: Jul 2003
Posts: 498
Trader Rating: 4 (100%+)
Default

Quote:
Originally Posted by Slo-MTX4 View Post
Sorry thats deg celcius not Fahrenheit.

What are the timing differences? Is the timing for more bottom or top end?

Ok then you are fine. That worried me. Also the timing differences are in the entire duration of the opening. You generally have more timing for increased top speed.
xspower is offline   Reply With Quote
Old 10-20-2009, 03:59 PM   #97
Tech Regular
 
Join Date: Jul 2003
Posts: 498
Trader Rating: 4 (100%+)
Default

Quote:
Originally Posted by M7H View Post
As I have them both, I can give comment on that.
As xspower said, the difference can be found in the crank, the IDM has more work done to it.
The EDO on the other hand, has a better cooling head and also the "aligned" conrod...
Difference in performance?


Not really....
They both share the rod feature. Really nothing only thing is that it is checked for accuracy where the tolerances are more closely looked at on the standard engine the engine is assembled. I would think that you would have to have a real issue with the rod to have any sort of problem of performance issue from a bad rod from a assembled engine. That would be my guess. You can offset the rods I have seen this done with shims on the small end to stop some walk but that is it.
xspower is offline   Reply With Quote
Old 10-20-2009, 04:35 PM   #98
Tech Elite
 
Slo-MTX4's Avatar
 
Join Date: Dec 2004
Location: Brisbane
Posts: 2,479
Trader Rating: 1 (100%+)
Send a message via ICQ to Slo-MTX4
Default

Quote:
Originally Posted by xspower View Post
Ok then you are fine. That worried me. Also the timing differences are in the entire duration of the opening. You generally have more timing for increased top speed.
Is it the crank or exhaust port timing thats different?
__________________
Podified Picco/MRX5/Futaba/Savox

PODIFIED ENGINES/Trackside RC
Slo-MTX4 is offline   Reply With Quote
Old 10-20-2009, 04:45 PM   #99
Tech Elite
 
Slo-MTX4's Avatar
 
Join Date: Dec 2004
Location: Brisbane
Posts: 2,479
Trader Rating: 1 (100%+)
Send a message via ICQ to Slo-MTX4
Default

Quote:
Originally Posted by M7H View Post
I don't know what it exactly means, but I think aligned means that the big end and small end of the conrod are measured and are exactly parrallel to each other....
So the conrods are selected....

Replacement interval depends heavily on how you use them.
I race them hard, and replace them every 5 liters of fuel.
With an older engine I had (Mega DSII) I tested and even reached 10 liters on a conrod, but beter safe then sorry, that's why I change them every 5 liters...
Thanks M7H will keep an eye on them.
__________________
Podified Picco/MRX5/Futaba/Savox

PODIFIED ENGINES/Trackside RC
Slo-MTX4 is offline   Reply With Quote
Old 12-29-2009, 08:29 PM   #100
Tech Elite
 
Raman's Avatar
 
Join Date: Aug 2007
Location: Las Vegas
Posts: 3,304
Trader Rating: 56 (100%+)
Default

What's the status on this motor? Is it still in production? Is there a new version coming out?
Raman is offline   Reply With Quote
Old 12-30-2009, 04:09 PM   #101
Tech Elite
 
LOW ET's Avatar
 
Join Date: Dec 2007
Location: cleveland, ohio
Posts: 2,883
Trader Rating: 97 (100%+)
Default

Quote:
Originally Posted by Raman View Post
What's the status on this motor? Is it still in production? Is there a new version coming out?
+1

i see there's a new off road engine so is there going to be a new on road version?
LOW ET is offline   Reply With Quote
Old 12-30-2009, 04:40 PM   #102
Tech Elite
 
Raman's Avatar
 
Join Date: Aug 2007
Location: Las Vegas
Posts: 3,304
Trader Rating: 56 (100%+)
Default

I emailed Ofna, a month ago and go no response.

I emailed Picco (I'm fluent in Italian) no response.

Picco's website is out of date.. they don't even list the P9R

http://www.teampicco.com/productshome.html
Raman is offline   Reply With Quote
Old 12-30-2009, 08:24 PM   #103
Tech Regular
 
Join Date: Jul 2003
Posts: 498
Trader Rating: 4 (100%+)
Default

There really is no P9R the engines all are a P7R. Both for the Picco and IDM brand. There will be another engine coming out but the P7R EVO3 is still being made up till this point. On and Off Road. The P7R off road is a 5 port and the P7R Track is a 7 port. There is no 9port offered just a label given. Also The are on holiday so you may not reach them depending on when you emailed Picco. I do not know about Ofna I would assume they are open.
xspower is offline   Reply With Quote
Old 12-30-2009, 09:51 PM   #104
Tech Elite
 
Raman's Avatar
 
Join Date: Aug 2007
Location: Las Vegas
Posts: 3,304
Trader Rating: 56 (100%+)
Default

My emails were a couple of months ago.. I work for Italians.. and they can be very laxy daisical...

Thanks for clearing up the P9R thing.

Interestingly enough Ofna's websites lists the EVO2 as a 7 and 9 port while the EVO3s as 5+2 and 7+2.

I wonder if the new P7R be labeled Picco or JLR Picco? The new P3 became JLR 28..
Raman is offline   Reply With Quote
Old 12-31-2009, 03:33 AM   #105
Tech Regular
 
Join Date: Jul 2003
Posts: 498
Trader Rating: 4 (100%+)
Default

Quote:
Originally Posted by Raman View Post
My emails were a couple of months ago.. I work for Italians.. and they can be very laxy daisical...

Thanks for clearing up the P9R thing.

Interestingly enough Ofna's websites lists the EVO2 as a 7 and 9 port while the EVO3s as 5+2 and 7+2.

I wonder if the new P7R be labeled Picco or JLR Picco? The new P3 became JLR 28..

I have no idea what they may do.
xspower is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
OFNA Picco .21 P7R EVO3 Off-Buggy Engine joydude630 Nitro Off-Road 25 03-27-2009 07:15 AM
PICCO P9R EVO3 kurtcash Nitro On-Road 1 07-04-2008 02:52 AM
+++ PICCO JLR Red Dot .12 OFF-ROAD Race Engine +++ raydog R/C Items: For Sale/Trade 62 12-20-2007 08:47 AM
Picco P7R .21 race engine 140 shipped... robby26wi R/C Items: For Sale/Trade 0 08-01-2007 07:34 AM
Picco P7R EVO Race Engine Hugh R/C Items: For Sale/Trade 5 12-13-2006 09:07 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 08:08 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net