Hoese37

iTrader: (5)

A familiar name has come back to the nitro engine game. REX/Novarossi car engines are back. 4 new .21 mills and a .28.

First up the Paloma .21: Looks like the Keep Off .21-7XL

TECH SPECS:

Displacement: 3,49 cc
R.P.M. (max power): 35.800 RPM
Practical range: 6.000-40.700 R.P.M.
Bore x stroke: 15,88x17,60 mm
Sleeve: 7 ports

R21 Plus5: Looks to be the same as the P5

TECH SPECS;

Displacement: 3,49 cc
R.P.M. (max power): 34.500 RPM
Practical range: 6.000-36.200 R.P.M.
Bore x stroke: 16,26x16,80 mm
Sleeve: 5 ports

R21 Plus8: Looks to be the 421SB/821SB

TECH SPECS:
Displacement: 3,49 cc
R.P.M. (max power): 36.200 RPM
Practical range: 6.000-40.200 R.P.M.
Bore x stroke: 16,26x16,80 mm
Sleeve: 8 ports

Hoese37

iTrader: (5)

R28-7M:

TECH SPECS:

Displacement: 4,66 cc
R.P.M. (max power): 33.500 RPM
Practical range: 6.000-38.200 R.P.M.
Bore x stroke: 18,35x17,60 mm
Sleeve: 7 ports

22Racer

iTrader: (67)

Plus 5 is nothing like a P5, 14.5mm weighted crank, different sleeve etc.

Rex

Hoese37

iTrader: (5)

Im just comparing by part numbers at the moment. Im sure there are differences, as these seem to be some classic Nova mills, with updated internals to bring them up to spec with the current models.

GarrettMcKamie

iTrader: (18)

Almost have a gallon on my Plus 5 and loving it! Getting around 10.5 mins on a tank and not fully broken in yet with killer power. 41021 header 9901ss pipe Vp Powermaster fuel on TLR 3.0

Dcracing2

The Plus 5 is very similar to the Novarossi BTT. With more power in the mid and top end. It has a very usable power band. We are getting great run times.

mercfocus

iTrader: (3)

Got the Paloma 21 a couple months ago.

This one here:

http://rex-usa.com/R-PALOMA21-LIMITE...RPALOMA21L.htm

Awesome!

Running it with a JP4 and Sidewinder 30%. I think it's made the OFNA I put it in into possibly my fastest car.

Had to change the front bearing already at about 1 gallon but for $15, that was no big deal.

I was going to order the 9901 SuperStrong to see what difference it will make but xmas sorta made me wait til the payday.

mercfocus

iTrader: (3)

Oh ya, and what I forgot to mention:

When I changed the bearing, I saw a lot of the same Nova parts in there. The R7 rod and the piston & sleeve looked pretty much exactly like my Beat 5.

The carbs are for sure the same. That's obvious but the Rex didn't have that extra tight head button and O-ring like my Beat 5.

And I finally just found one of my pics of my Rex out of the car.

croracer

iTrader: (11)

whats the difference in the limited paloma vs the blue paloma, besides the orange head?

mercfocus

iTrader: (3)

From what I understand, the blue head is a 5 port and the orange head is a 7 port.

There's also something I read in RC Driver magazine about the size difference in the crank and one other thing but I don't remember what it was.

mercfocus

iTrader: (3)

Upon further inspection, I see I might have had it confused with the 5 port.

The blue head Paloma is probably also a 7 port.

Tring to find what I did with that mag issue that talks about this.

22Racer

iTrader: (67)

The Paloma and the Paloma limited are quite different. The Limited is a standard long stroke 7 port, I thought it looked similar to a Fusion X7. The Blue head Paloma is basically a Nova Bonito, 7 port extra long stroke.

Rex

hambone

iTrader: (1)

Rex, how does the 5 port sleeve differ from P5?

houston

iTrader: (96)

You mean an older plus 2 367?

These are old spare parts engines so nova can recoop some money from dead inventory

Not saying its a bad thing just dfrnt

am

Like Rb limited series engines :-)