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 05-03-2005, 03:40 AM   #1726
Tech Master
 
tl2111's Avatar
 
Join Date: Mar 2002
Location: Love 1/8th
Posts: 1,561
Trader Rating: 21 (100%+)
Send a message via MSN to tl2111
Default

Yes, this will be the limit from this crank. but some timing increase u will see a new star raise again
__________________
*Tourer**Futaba***SpeedPassion
*F1**4PX***TORO
*12th**4PX***TORO
*8th**4PX***OS Speed XZ-R
*10th**4PX***OS Speed XZ
tl2111 is offline   Reply With Quote
Old 05-03-2005, 03:43 AM   #1727
Tech Master
 
tl2111's Avatar
 
Join Date: Mar 2002
Location: Love 1/8th
Posts: 1,561
Trader Rating: 21 (100%+)
Send a message via MSN to tl2111
Default

Also BRB should out last your crank pin. I am still using the GEN 1 BRB but is on my second crank now, lost little bit of bottom end only
__________________
*Tourer**Futaba***SpeedPassion
*F1**4PX***TORO
*12th**4PX***TORO
*8th**4PX***OS Speed XZ-R
*10th**4PX***OS Speed XZ
tl2111 is offline   Reply With Quote
Old 05-03-2005, 03:46 AM   #1728
Tech Elite
 
markp27's Avatar
 
Join Date: Jan 2003
Location: Nuremberg, Germany
Posts: 4,069
Send a message via ICQ to markp27
Default

Quote:
Originally posted by tl2111
Yes, this will be the limit from this crank. but some timing increase u will see a new star raise again
Do you mean 0.3mm shim is the limit?
To increase the timing, this would mean modifying the crank, I take it?
markp27 is offline   Reply With Quote
Old 05-03-2005, 03:52 AM   #1729
Tech Master
 
tl2111's Avatar
 
Join Date: Mar 2002
Location: Love 1/8th
Posts: 1,561
Trader Rating: 21 (100%+)
Send a message via MSN to tl2111
Default

Quote:
Originally posted by markp27
Do you mean 0.3mm shim is the limit?
To increase the timing, this would mean modifying the crank, I take it?
yes, I mean crank timing
__________________
*Tourer**Futaba***SpeedPassion
*F1**4PX***TORO
*12th**4PX***TORO
*8th**4PX***OS Speed XZ-R
*10th**4PX***OS Speed XZ
tl2111 is offline   Reply With Quote
Old 05-03-2005, 03:55 AM   #1730
Tech Elite
 
markp27's Avatar
 
Join Date: Jan 2003
Location: Nuremberg, Germany
Posts: 4,069
Send a message via ICQ to markp27
Default

Quote:
Originally posted by tl2111
yes, I mean crank timing
I'll have to measure the crank timing when the races this week are over.

Thanks for the info. Mark.
markp27 is offline   Reply With Quote
Old 05-03-2005, 11:06 AM   #1731
Tech Fanatic
 
kitracer's Avatar
 
Join Date: Sep 2001
Location: hong kong
Posts: 986
Default

Quote:
Originally posted by tl2111
plug choice is critical.
First time tested Odonnel plug last weeked.
So far only 7 tanks and felt much more confident using it.

97T , 30%, 0.5mm total head shim, 5.4 carb, 6mm pipe
std Nova crankshaft / crankcase
LSN 1 1/2
HSN 4 3/4
temp at plug 113c
air temp around 30c

I will try 77 and 99 next week.

Last edited by kitracer; 05-03-2005 at 11:13 AM.
kitracer is offline   Reply With Quote
Old 05-03-2005, 05:16 PM   #1732
Tech Elite
 
EdwardN's Avatar
 
Join Date: May 2003
Location: SoCal
Posts: 2,144
Trader Rating: 1 (100%+)
Default

timing calculation script
Here is attached very small timing calculation script. Sorry, but it is on Russian.
hey I tryed to attached, but it doesn't want to accept extencion.
If anybody can help and do something with it and put it here in forum. I can email it.
Thanks in advance.
Edward
__________________
DISCLAIMER: Since 90% of my posts may be BS, and since my posts may be either insanely idiotic, incoherent, and/or not even close to a rational thought, please accord my posts no more than 10% of credibility.

Last edited by Top Gun 777; 05-03-2005 at 05:23 PM.
EdwardN is offline   Reply With Quote
Old 05-03-2005, 07:08 PM   #1733
Tech Adept
 
Join Date: Sep 2002
Location: Austin, TX
Posts: 246
Trader Rating: 2 (100%+)
Default

Mark,

I think your temp is a little low. Edward suggests 230-240F to get the sleeve to expand a little more (reducing piston friction). This will help a bit with the top end too.
Try tightening the clutch a little. If it's too loose then the engine might bog a little on engagement.
Surge is offline   Reply With Quote
Old 05-03-2005, 09:23 PM   #1734
Tech Master
 
BundyMan's Avatar
 
Join Date: Jul 2004
Location: Fujiwara ToFu Shop
Posts: 1,588
Default

A simple question, once the crank timing is establish...how do you change it?

Rgds
BundyMan is offline   Reply With Quote
Old 05-04-2005, 11:11 AM   #1735
Tech Fanatic
 
Data's Avatar
 
Join Date: Jun 2002
Location: NCC-1701E, the Enterprise
Posts: 765
Default

Quote:
Originally posted by BundyMan
A simple question, once the crank timing is establish...how do you change it?

Rgds
if you want to advance the opening, cut the leading edge of the port, if you want to delay the closing, cut the trailing edge.

data
Data is offline   Reply With Quote
Old 05-05-2005, 03:02 AM   #1736
Tech Fanatic
 
teammpp's Avatar
 
Join Date: Mar 2004
Location: Northern Ireland
Posts: 894
Default

Quote:
Originally posted by Top Gun 777
timing calculation script
Here is attached very small timing calculation script. Sorry, but it is on Russian.
hey I tryed to attached, but it doesn't want to accept extencion.
If anybody can help and do something with it and put it here in forum. I can email it.
Thanks in advance.
Edward
Send it to me Ed. Will sort it out for you.
teammpp is offline   Reply With Quote
Old 05-05-2005, 11:22 AM   #1737
Tech Fanatic
 
Data's Avatar
 
Join Date: Jun 2002
Location: NCC-1701E, the Enterprise
Posts: 765
Default

Quote:
Originally posted by BundyMan
A simple question, once the crank timing is establish...how do you change it?

Rgds
basic timing mod on crank, per your request.

data
Attached Images
File Type: jpg crank.jpg (199.6 KB, 190 views)
Data is offline   Reply With Quote
Old 05-08-2005, 09:18 AM   #1738
Tech Elite
 
EdwardN's Avatar
 
Join Date: May 2003
Location: SoCal
Posts: 2,144
Trader Rating: 1 (100%+)
Default

Hi guys.
I really appologize to don't be here for last 4-5 days. I was really sick and couldn't get to the Internet.
Now feel much better.
Best regards
Edward
__________________
DISCLAIMER: Since 90% of my posts may be BS, and since my posts may be either insanely idiotic, incoherent, and/or not even close to a rational thought, please accord my posts no more than 10% of credibility.
EdwardN is offline   Reply With Quote
Old 05-08-2005, 10:43 AM   #1739
Tech Adept
 
Join Date: Dec 2001
Posts: 191
Default

Hi Ed,

Glad to hear your feeling better.

I sent you an email.


Kevin
click, dublin is offline   Reply With Quote
Old 05-10-2005, 04:32 PM   #1740
Tech Fanatic
 
Speedypeterb's Avatar
 
Join Date: Oct 2002
Location: Pompano Beach FL.
Posts: 775
Trader Rating: 16 (100%+)
Send a message via AIM to Speedypeterb
Default good news

Glad to hear your feeling better now i won't feel bad waking you up at three in the morning lol!! talk to you soon Peter
__________________
Team Kyosho, Team Epic, IDM Engines, J-Tech racing fuels, Airtronics, Superiorhobbies.com
Speedypeterb is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Palmaris PR12 .12 1/10 touring car engine boy2rc R/C Items: For Sale/Trade 0 01-29-2007 09:28 AM
Palmaris Racing EdwardN Monster Trucks 0 11-26-2006 08:56 AM
Palmaris Racing EdwardN Electric Off-Road 0 11-26-2006 08:48 AM
Palmaris PS12 engine for sale boy2rc R/C Items: For Sale/Trade 0 08-10-2005 09:05 AM
Palmaris PS12 for sale boy2rc R/C Items: For Sale/Trade 2 03-16-2005 06:15 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 10:46 PM.


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