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Murnan Modified Motors

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03-19-2009, 06:26 PM

#2116

c1 racin

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Quote:

Originally Posted by Grinder

Hi. I recommend Rocket Science fuel. I have also tried some other good fuels like J-Tech fuel. If these are not readily available the Byrons Gen 2 is a good alternative.

I have a couple of break in methods that we use with success listed on my website. http://murnanmodified.com/breakin.php

I am out of the 2630 for another week or so.

I do have the medium headers in stock.

Do you have the 2630 in? When I add the medium header to my cart it says *** dont exist in desired quantity in our stock. ...

03-22-2009, 05:50 PM

#2117

TrickPonYracing

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murnan powered to second place finish this week,,,,, at the famed fort myers r/c car club race,,,,, way to go james you had a better handling car ,,,,tough luck chris l.

03-24-2009, 01:23 PM

#2118

1nsane

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Grinder, you have pm and lots of emails

03-26-2009, 03:37 AM

#2119

1nsane

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Uriah, another PM thank you.

03-26-2009, 06:36 AM

#2120

Big Jeff BBQ

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Quote:

Originally Posted by Grinder

Team Murnan had 5 out of 10 engines in the sedan A main at the Florida State Race at Kissimmee Raceway. Congratulations guys. A special congratulations to Chris Lefebvre for winning the A main sedan with Murnan power.

1 3 100 30:09.73 Chris Lefebvre Murnan +12-3SCT
2 1 99 30:01.27 DJ Apolaro
3 4 99 30:04.17 Andrew Duperrouzel
4 2 99 30:15.20 Uriah Murnan Murnan M353R Modified
5 0 95 30:10.03 James Burrows
6 8 93 30:05.75 Tommy DeSantis Murnan M353R Modified
7 6 92 30:15.87 Eduardo Cabal
8 9 82 30:12.79 Marcus Moten Murnan M353R Tuned
9 5 29 9:28.74 Anthony Andrews Murnan M353R Modified
10 7 18 12:29.94 Peter Breton

Way to go guys!

I think there were 3 or 4 Murnan Modified in the B Main !

How Quick we forget the B main !

Later
Jeff Epperson
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03-28-2009, 01:52 PM

#2121

airtraficontr

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trick pony

so are you sayin your engines are cheaper whith the giddy up? bonehead

03-28-2009, 02:08 PM

#2122

TommyBlazin

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emails/pm sent i need to get my new powerplant in order, is he on vacation?

03-29-2009, 03:38 AM

#2123

infernoman2008

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I have A question I just bought a mm nova rossi +12-3sct i am wondering what hearder to choose. and what are the difference between long, med, short headers. I already have a new nova 2630 pipe. thanks

03-29-2009, 06:52 AM

#2124

Grinder

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Quote:

Originally Posted by TommyBlazin

emails/pm sent i need to get my new powerplant in order, is he on vacation?

Please resend the email. I do not recall not answering any emails.

Thanks, Uriah

03-29-2009, 07:04 AM

#2125

Grinder

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Quote:

Originally Posted by infernoman2008

I like to have all the headers in my arsenal. The short header will make the most peak HP, and Torque. The long makes the least HP, and torque. The medium is in the middle of the two.

The short header will make it's peak power around 45,000 rpm. The medium around 42,000, and the long at around 39,000.

I use the short most of the time. I will use the medium if I feel the engine needs to spool up quicker. The longer the header will make the engine get to it's peak power quicker than the shorter headers, but with less peak HP, and Torque. I usually reserve the long header for the smallest of tracks.

03-29-2009, 09:44 AM

#2126

infernoman2008

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thanks for the info it helped a lot

03-30-2009, 07:38 PM

#2127

c1 racin

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Grinder,

First things first .... this is not from one of your motors .... I have a question .... how and why did this happen (see picture)

Attached Thumbnails

03-30-2009, 08:54 PM

#2128

TommyBlazin

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Quote:

Originally Posted by c1 racin

Grinder,

First things first .... this is not from one of your motors .... I have a question .... how and why did this happen (see picture)

HARD TO TELL, DID THE PISTON COME UNLODGED, THE WRIST PIN FEEL OUT?..NEED MORE INFO PLRASE

03-31-2009, 03:11 AM

#2129

c1 racin

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Quote:

Originally Posted by TommyBlazin

HARD TO TELL, DID THE PISTON COME UNLODGED, THE WRIST PIN FEEL OUT?..NEED MORE INFO PLRASE

Everything was still together .... wrist pin, both clips .... when I pulled the back plate off there was just pieces of the piston everywhere .... ?

03-31-2009, 03:33 AM

#2130

Grinder

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Quote:

Originally Posted by c1 racin

Grinder,

First things first .... this is not from one of your motors .... I have a question .... how and why did this happen (see picture)

That could be from removing the backplate while the piston was still down far enough to grab the slot on the backplate. Was the backplate hard to remove?

I have seen this occur in one brand new RBR3 that I was taking apart. I took the backplate off, and there were pieces of piston inside the engine. I am still waiting on a replacement for that after one year.

Those are my only guesses.