Palmaris engine thread

Reply

Old 04-13-2005, 11:09 AM
  #1606  
Tech Elite
Thread Starter
iTrader: (1)
 
EdwardN's Avatar
 
Join Date: May 2003
Location: SoCal
Posts: 2,148
Trader Rating: 1 (100%+)
Default

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
EdwardN is offline  
Reply With Quote
Old 04-13-2005, 11:13 AM
  #1607  
Tech Elite
Thread Starter
iTrader: (1)
 
EdwardN's Avatar
 
Join Date: May 2003
Location: SoCal
Posts: 2,148
Trader Rating: 1 (100%+)
Default

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.
EdwardN is offline  
Reply With Quote
Old 04-13-2005, 11:28 AM
  #1608  
Super Moderator
iTrader: (201)
 
Marcos.J's Avatar
 
Join Date: Sep 2003
Location: Semper Fi
Posts: 29,123
Trader Rating: 201 (100%+)
Default

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
Thread Starter
iTrader: (1)
 
EdwardN's Avatar
 
Join Date: May 2003
Location: SoCal
Posts: 2,148
Trader Rating: 1 (100%+)
Default

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?
EdwardN is offline  
Reply With Quote
Old 04-13-2005, 11:41 AM
  #1610  
Tech Elite
iTrader: (6)
 
YBSLOW's Avatar
 
Join Date: May 2002
Location: ARIZONA
Posts: 2,421
Trader Rating: 6 (100%+)
Default Head clearance

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 is offline  
Reply With Quote
Old 04-13-2005, 11:43 AM
  #1611  
Super Moderator
iTrader: (201)
 
Marcos.J's Avatar
 
Join Date: Sep 2003
Location: Semper Fi
Posts: 29,123
Trader Rating: 201 (100%+)
Default

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

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
Thread Starter
iTrader: (1)
 
EdwardN's Avatar
 
Join Date: May 2003
Location: SoCal
Posts: 2,148
Trader Rating: 1 (100%+)
Default Re: Head clearance

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
EdwardN is offline  
Reply With Quote
Old 04-13-2005, 02:01 PM
  #1614  
Super Moderator
iTrader: (201)
 
Marcos.J's Avatar
 
Join Date: Sep 2003
Location: Semper Fi
Posts: 29,123
Trader Rating: 201 (100%+)
Default

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
iTrader: (16)
 
Speedypeterb's Avatar
 
Join Date: Oct 2002
Location: Pompano Beach FL.
Posts: 775
Trader Rating: 16 (100%+)
Default todd

todd you got pm
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

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
Thread Starter
iTrader: (1)
 
EdwardN's Avatar
 
Join Date: May 2003
Location: SoCal
Posts: 2,148
Trader Rating: 1 (100%+)
Default Re: BRB TQ

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
EdwardN is offline  
Reply With Quote
Old 04-17-2005, 10:41 AM
  #1619  
Tech Fanatic
 
Join Date: Oct 2002
Posts: 778
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
Thread Starter
iTrader: (1)
 
EdwardN's Avatar
 
Join Date: May 2003
Location: SoCal
Posts: 2,148
Trader Rating: 1 (100%+)
Default Re: new sts 21 onroad

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
EdwardN is offline  
Reply With Quote

Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service