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 04-13-2005, 11:09 AM   #1606
Tech Elite
 
EdwardN's Avatar
 
Join Date: May 2003
Location: SoCal
Posts: 2,144
Trader Rating: 1 (100%+)
Default

Quote:
Originally posted by 4racer
hi edward,
at my home track the temp is in the moment around 15c, i have shimmed the engine to 0.3mm headclearence and run with a 6tc plug. the temp is around 100C on the topfin from the head. (spy test)
i set the engine like a original, what i read i must change to the brb set with leaner bottom and richer top
dieter
Hi Dieter.
Yes, I will suggest so. Leaner on bottom and reacher on top-it even have much beter milage.
Also, 100C is little bit too low for BRB. Due to the expantion rates the best performance was found 105-120 C
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 04-13-2005, 11:13 AM   #1607
Tech Elite
 
EdwardN's Avatar
 
Join Date: May 2003
Location: SoCal
Posts: 2,144
Trader Rating: 1 (100%+)
Default

Quote:
Originally posted by Marcos.J
if you add a .1mm shim to the .3mm shim running with 30% will that give you more top end?
Yes it will, but for sure we are talking about 30% nitro content, if less % it will eat out bottom end and idle will unpredictable. So in every single particular case, head shimming needs to e adjusted. For instance, in Las Vegas you will not get away with stock shimming for sure.
__________________
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 04-13-2005, 11:28 AM   #1608
Super Moderator
 
Marcos.J's Avatar
R/C Tech Elite Subscriber
 
Join Date: Sep 2003
Location: Semper Fi
Posts: 27,214
Trader Rating: 182 (100%+)
Default

Quote:
Originally posted by Top Gun 777
Yes it will, but for sure we are talking about 30% nitro content, if less % it will eat out bottom end and idle will unpredictable. So in every single particular case, head shimming needs to e adjusted. For instance, in Las Vegas you will not get away with stock shimming for sure.
I only run 30% fuel
Marcos.J is offline   Reply With Quote
Old 04-13-2005, 11:36 AM   #1609
Tech Elite
 
EdwardN's Avatar
 
Join Date: May 2003
Location: SoCal
Posts: 2,144
Trader Rating: 1 (100%+)
Default

Quote:
Originally posted by Marcos.J
I only run 30% fuel
In Florida you should be on the edge with 0.4mm shimming, but with BRB, I am not sure about original-never run them. Do you have BRB?
__________________
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 04-13-2005, 11:41 AM   #1610
Tech Elite
 
YBSLOW's Avatar
R/C Tech Elite Subscriber
 
Join Date: May 2002
Location: ARIZONA
Posts: 2,368
Trader Rating: 6 (100%+)
Default Head clearance

Quote:
Originally posted by Top Gun 777
In Florida you should be on the edge with 0.4mm shimming, but with BRB, I am not sure about original-never run them. Do you have BRB?
Hi Ed,
What head clearance would you run for BRB .21 and .12 on 30% fuel in Vegas? Are you going to Vegas?

Thanks,
Brad
__________________
YBSLOW Racing
RC Target - Capricorn
HOTRACE Tyres, Tru Source, Fantom
POWER MASTER Fuel, 2mm Designs
Protoform Bodies, Avid Bearings, AMR Engines
YBSLOW is offline   Reply With Quote
Old 04-13-2005, 11:43 AM   #1611
Super Moderator
 
Marcos.J's Avatar
R/C Tech Elite Subscriber
 
Join Date: Sep 2003
Location: Semper Fi
Posts: 27,214
Trader Rating: 182 (100%+)
Default

Quote:
Originally posted by Top Gun 777
In Florida you should be on the edge with 0.4mm shimming, but with BRB, I am not sure about original-never run them. Do you have BRB?
not yet trying to save the money to buy it with out my wife finding out
Marcos.J is offline   Reply With Quote
Old 04-13-2005, 11:48 AM   #1612
Tech Fanatic
 
Data's Avatar
 
Join Date: Jun 2002
Location: NCC-1701E, the Enterprise
Posts: 765
Default

Quote:
Originally posted by Marcos.J
not yet trying to save the money to buy it with out my wife finding out
ask ed to sponsor you
Data is offline   Reply With Quote
Old 04-13-2005, 11:49 AM   #1613
Tech Elite
 
EdwardN's Avatar
 
Join Date: May 2003
Location: SoCal
Posts: 2,144
Trader Rating: 1 (100%+)
Default Re: Head clearance

Quote:
Originally posted by YBSLOW
Hi Ed,
What head clearance would you run for BRB .21 and .12 on 30% fuel in Vegas? Are you going to Vegas?

Thanks,
Brad
Hi Brad.
I did run it last year with Daniel 21 BRB there and we end up with .7mm. It was running 240 F.
I might come down my self-Leo is last year in High school so no way he can be there. I probably will come on Saturday and Sunday.
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 04-13-2005, 02:01 PM   #1614
Super Moderator
 
Marcos.J's Avatar
R/C Tech Elite Subscriber
 
Join Date: Sep 2003
Location: Semper Fi
Posts: 27,214
Trader Rating: 182 (100%+)
Default

Quote:
Originally posted by Data
ask ed to sponsor you
If I could only be so lucky!!!
Marcos.J is offline   Reply With Quote
Old 04-14-2005, 08:43 PM   #1615
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 todd

todd you got pm
__________________
Team Kyosho, Team Epic, IDM Engines, J-Tech racing fuels, Airtronics, Superiorhobbies.com
Speedypeterb is offline   Reply With Quote
Old 04-15-2005, 08:28 AM   #1616
Tech Fanatic
 
kitracer's Avatar
 
Join Date: Sep 2001
Location: hong kong
Posts: 986
Default Re: Re: Head clearance

Quote:
Originally posted by Top Gun 777
Hi Brad.
I did run it last year with Daniel 21 BRB there and we end up with .7mm. It was running 240 F.
I might come down my self-Leo is last year in High school so no way he can be there. I probably will come on Saturday and Sunday.
Edward
My friend was using the BRB 21 last race which he got 4th A main first time on 1/8 at the Kyosho cup. He was really happy.

We end up using 0.8mm ( 30% odonnel) with Nova no 9886 pipe and Max header. We tried 0.6 then 0.7mm but just could not get the Speed up. We tried clutch , tunning and 0.8mm was way better in speed and torque. We were able to lean the engine with that setting and got the speed we want it.

We will try different pipe next week and will even try 0.9mm and see the results.

I just love to test different setting...
kitracer is offline   Reply With Quote
Old 04-17-2005, 07:19 AM   #1617
Tech Fanatic
 
kitracer's Avatar
 
Join Date: Sep 2001
Location: hong kong
Posts: 986
Default BRB TQ

Today 2nd Round of Serpent Cup,

5 x "BRB" piston and sleeve set got to A main

MY driver also TQ with BRB and JP crankshaft

The field were mostly Max 15 with some Team engine using 7mm carb and Picco Mega 15. and ...

My driver TQ using FIRST GENERATION BRB.

That engine have been raced used so many times that I cannot remember. I only changed bearing, crankshaft and conrod once but that piston and sleeve is still the first generation.

BRB set the standard


no doubt
kitracer is offline   Reply With Quote
Old 04-17-2005, 08:36 AM   #1618
Tech Elite
 
EdwardN's Avatar
 
Join Date: May 2003
Location: SoCal
Posts: 2,144
Trader Rating: 1 (100%+)
Default Re: BRB TQ

Quote:
Originally posted by kitracer
Today 2nd Round of Serpent Cup,

5 x "BRB" piston and sleeve set got to A main

MY driver also TQ with BRB and JP crankshaft

The field were mostly Max 15 with some Team engine using 7mm carb and Picco Mega 15. and ...

My driver TQ using FIRST GENERATION BRB.

That engine have been raced used so many times that I cannot remember. I only changed bearing, crankshaft and conrod once but that piston and sleeve is still the first generation.

BRB set the standard


no doubt
Congratulation Chris to you and to your driver. You are really setting the standarts by beating .15 engines and all outlaws with stock 3 port legal p/s sets. Also Chris, great stability-5 set in A-main is really something!
I guess now everybody can see where the power located-not in the cuts and numbers of ports. Still first generation? Even by my best calculation should be over a while ago.
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 04-17-2005, 10:41 AM   #1619
Tech Fanatic
 
Join Date: Oct 2002
Posts: 778
Send a message via Yahoo to speedy100
Default new sts 21 onroad

Hi Ed, i heard from the grapewine that the new STS 21 onroad beging tested is using the BRB piston and sleeve. Pls advise if that is true ? thxs
speedy100 is offline   Reply With Quote
Old 04-17-2005, 11:03 AM   #1620
Tech Elite
 
EdwardN's Avatar
 
Join Date: May 2003
Location: SoCal
Posts: 2,144
Trader Rating: 1 (100%+)
Default Re: new sts 21 onroad

Quote:
Originally posted by speedy100
Hi Ed, i heard from the grapewine that the new STS 21 onroad beging tested is using the BRB piston and sleeve. Pls advise if that is true ? thxs
Hi.
I have no idea if this is correct, but will not be surprize. I have no any ties with STS.
I know that STS got some piston material from Russia and they are testing it, but again have no idea about BRB.
The good thing about any testing with BRB, that I am first who brought this composion to RC cars and over the 1.5 year we did made a lot of testing and developments, so everybody else has to go throught the same process and this is what called "chasing the tail". There is no way any manufacturer will be repeat our lay outs and materials, so they will need to go through their own developing process.
As I have told before we are right now finishing test Bi-metall set up (just for info-first time ever-not in real engines, not in RC engines bi-metall was use or even tested) and results are ammazing. It will take a while before it will be available (3-6 month). This is will be next step for "chasing the tail".
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
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 04:17 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