Like Tree3Likes

Murnan Modified Motors

Reply

Old 04-07-2003, 06:30 PM
  #1  
Tech Master
Thread Starter
iTrader: (2)
 
Grinder's Avatar
 
Join Date: Feb 2003
Posts: 1,858
Trader Rating: 2 (100%+)
Default Murnan Modified Motors

If anyone is interested in my modified 3 port engines that conforms to ROAR and EFRA rules you can email me at [email protected] for details. My motors are extremely fast and reliable.
Grinder is offline  
Reply With Quote
Old 04-07-2003, 07:46 PM
  #2  
Tech Adept
 
Join Date: Mar 2003
Location: Wash, D.C.
Posts: 120
Default

didn't i c a murnan mod for sale on ebay recently? y not post some infos here...
cybertoolzz is offline  
Reply With Quote
Old 04-07-2003, 08:09 PM
  #3  
Tech Master
Thread Starter
iTrader: (2)
 
Grinder's Avatar
 
Join Date: Feb 2003
Posts: 1,858
Trader Rating: 2 (100%+)
Default

.

Last edited by Grinder; 02-05-2008 at 03:46 AM.
Grinder is offline  
Reply With Quote
Old 04-07-2003, 08:12 PM
  #4  
Tech Elite
 
kevink2's Avatar
 
Join Date: Nov 2001
Location: Glendale, Calif.
Posts: 2,154
Default

MT-12 is sweet, thanks Uriah. Got some of my best lap times ever last weekend.
kevink2 is offline  
Reply With Quote
Old 04-07-2003, 08:20 PM
  #5  
Tech Master
Thread Starter
iTrader: (2)
 
Grinder's Avatar
 
Join Date: Feb 2003
Posts: 1,858
Trader Rating: 2 (100%+)
Default

Murnan MR-12 Crank

Last edited by Grinder; 01-04-2007 at 07:10 PM.
Grinder is offline  
Reply With Quote
Old 04-07-2003, 08:43 PM
  #6  
Tech Adept
 
Join Date: Mar 2003
Location: Wash, D.C.
Posts: 120
Default

excellent work - i'm impressed. can u show the BEFORE pics?

u widened and polished the carb opening? u didn't open the carb inlet right - that's still 5.5mm - correct?
i'm no expert but what does a wider throat do other than allow more AIR?
and even if u open the throat by 1-2mm that is only a VERY SLIGHT increase in the air volumn entering the cab. i fail to see any SIGNIFICANT improvement here... (but again i'm not very l33t)

now the crank - again excellent stuff - very sharp and polished work- u shaped the scoop up into the bore and it looks like u beveled the scoop back INTO the bore opening slightly.
how far can u push this technique - can u take it back FURTHER into the bore opening?
what about the INLET PORT of the crank? did u do any work back there? widen the port - flare the sides, etc? can u post a pic?


what about sleeve work - that seems to be where most ppl get creative....

(i wanna be l33t 2!)
cybertoolzz is offline  
Reply With Quote
Old 04-08-2003, 12:02 AM
  #7  
Tech Master
 
theRED5's Avatar
 
Join Date: Aug 2002
Location: near Athens,GA
Posts: 1,022
Default

These things are great! I have a Murnan modded NovaMega MT12 and it has more power all the way through the rev range, and increased top end. I didn't know how much better it was till I got a really good exhaust system (NTC3), now that I have, this baby will scream...I've been running it hard since Feb. and its still gets stronger as it gets more wear.

Drive one or chase one, Uriah's got the HEAT!
theRED5 is offline  
Reply With Quote
Old 04-08-2003, 03:53 AM
  #8  
Tech Elite
 
stefan's Avatar
 
Join Date: Aug 2001
Location: Bavaria, Germany
Posts: 3,274
Default

My Murnan RB X12 should be in my mailbox today

This man knows what he's doing, I felt it on the back straight of our track
stefan is offline  
Reply With Quote
Old 04-08-2003, 04:44 AM
  #9  
Tech Rookie
 
Join Date: Apr 2003
Posts: 14
Default

does anyone mind sharing a price ? im looking for a new fast engine... how is the durability , i know they damm sure look cool .
Supernitro17 is offline  
Reply With Quote
Old 04-08-2003, 06:29 AM
  #10  
Tech Adept
 
Join Date: Mar 2003
Location: Wash, D.C.
Posts: 120
Default

grinder/murnan - chk out the discussion on the RB X12 Rody - how much would it cost to modify a STS RS5 like the mods used on the RB Rody? would it be worth it?
cybertoolzz is offline  
Reply With Quote
Old 04-08-2003, 06:58 AM
  #11  
Tech Master
Thread Starter
iTrader: (2)
 
Grinder's Avatar
 
Join Date: Feb 2003
Posts: 1,858
Trader Rating: 2 (100%+)
Default

.

Last edited by Grinder; 02-05-2008 at 03:42 AM.
Grinder is offline  
Reply With Quote
Old 04-08-2003, 08:47 AM
  #12  
Tech Regular
 
Join Date: Aug 2001
Location: Los Angeles
Posts: 321
Default

Hey Grinder

Do you do MT 12 Turbo's. I'm looking for an all out 12 Turbo to run in my GT4R. I'm going to be running against 835's(Serpent) with all out 15's.

If you do what's the price for Modding with motor. I'm looking at Carlsen's, but there harder to get here.


Thanks!!!

Bradley J. Gotori
[email protected]
bgotori is offline  
Reply With Quote
Old 04-08-2003, 09:30 AM
  #13  
Tech Apprentice
 
ice-wolf's Avatar
 
Join Date: Jan 2003
Location: frizco california
Posts: 63
Default

Grinder you got pm.
ice-wolf is offline  
Reply With Quote
Old 04-09-2003, 04:08 PM
  #14  
Tech Elite
 
stefan's Avatar
 
Join Date: Aug 2001
Location: Bavaria, Germany
Posts: 3,274
Default

I got my Murnan Modified RB X12 today.

WOW! What a piece of work.

Thanks Uriah!!!
stefan is offline  
Reply With Quote
Old 04-09-2003, 04:56 PM
  #15  
Tech Master
Thread Starter
iTrader: (2)
 
Grinder's Avatar
 
Join Date: Feb 2003
Posts: 1,858
Trader Rating: 2 (100%+)
Wink

Thanks Stefan. I now have a limited number of modified 5 port MT12's available with standard buttons.
Grinder is offline  
Reply With Quote

Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Terms of Service