HR.91 CMB

Wasted wages · Feb 16, 2012

I have 2 HR.91CMB engines brand new in unopened boxes I would like to put up for sale in the for sale section.

Before I post them, didn't CMB make 2 different P/S combinations for a while ??

ABC vs AAC ?? or something like that ?

I would hate to advertise them incorrectly,,,,,

but then again....I don't want to open the boxes if i don't have to......

RaceMechaniX · Feb 16, 2012

I believe there are two different sleeves as well as HR and VAC version induction. I believe the sleeves are by year which should be marked on the box. I don't think CMB did a aluminum sleeve for the 91hr/vac, only the 91 and 101 RS motors.

ALLAN YUEN · Feb 16, 2012

better contact Stu Barr he will help you ^_^ He knew that depend on what year did you buy ?

gil sonsino · Feb 16, 2012

The Vac is a long stroker compared with the HR.and both are ABC.

Gill

Anders_Martinelle · Feb 17, 2012

CMB HR and VAC have the same stroke of 26mm.

The difference between the HR and VAC P/L is that HR has a OD of 32mm and the VAC has 33mm.

HR and VAC have only been produced with ABC P/L.

Regards Anders

gil sonsino · Feb 17, 2012

Thanks Anders.

Gill

dwilfong · Feb 17, 2012

Some of the HR's do not have the windows in the pistons. thy have the slots under the transfers but no hole in the piston.

I know I have one.

David

Wasted wages · Feb 23, 2012

Turns out I have 3 of these.....and two tuned pipes part number c05116

This box was open....the other two are in sealed boxes as well as the pipes.

Kinda on the fence about selling them...... Is Nitro making a comeback at all ??

Neil LaGarry · Feb 23, 2012

Small nitro is in Big nitro is out. Why, we got gas engines for big nitro engines. The cost of nitro fuel and plugs have driven many away. We are strarting up a .12-18 rigger class in Elmira this season. The .21 class is still the favorite of many racers. I still plan on running a .67 this season. If we club prices on nitro & plugs 16 -18 oz per heat on the big nitro racing. 4 oz per heat on the .12 rigger. ,you still need to launch under a 1 min.or you may not finish your heat.

dwilfong · Feb 23, 2012

Depends on where you live here in Florida big nitro is thriving.the small stuff is not as plentifully. 0 in the way of .12-.18

David

Andy Brown · Feb 24, 2012

dwilfong said:
Depends on where you live here in Florida big nitro is thriving.the small stuff is not as plentifully. 0 in the way of .12-.18

David

Yep! Big Block rules in the South! Hardly a .21 boat to be found.

FloridaScaleBoater · Feb 24, 2012

Wasted wages said:
Turns out I have 3 of these.....and two tuned pipes part number c05116

This box was open....the other two are in sealed boxes as well as the pipes.

Kinda on the fence about selling them...... Is Nitro making a comeback at all ??

Well Hell,,,,,

Since you had one you didin't know you had,,, just sent that one to me,,, and I'll put it to good use!!!!!

Buckshot · Feb 24, 2012

Where are you located?

Wasted wages · Feb 24, 2012

Houston......

Have run with LSMBC for many years........

Kinda took a break for a while when the club started to fall apart,,,,nitro got scarce....gas boats started coming on stronger...

I've got tons of Nitro stuff.....couple of twin riggers,,,,couple of F hydros...1 built by CMDI ... never been in the water.

F mono,,,, .67 rigger,,,.21 rigger....couple of gassers... mono and crackerbox...

LSMBC is now NAMBA.... I have been thinking about racing this season..... just not sure about nitro classes...

Buckshot · Feb 24, 2012

Wasted wages said:
Houston......

Have run with LSMBC for many years........

Kinda took a break for a while when the club started to fall apart,,,,nitro got scarce....gas boats started coming on stronger...

I've got tons of Nitro stuff.....couple of twin riggers,,,,couple of F hydros...1 built by CMDI ... never been in the water.

F mono,,,, .67 rigger,,,.21 rigger....couple of gassers... mono and crackerbox...

LSMBC is now NAMBA.... I have been thinking about racing this season..... just not sure about nitro classes...

Cool. Get'em charged up and buy some fresh nitro. We are running!!!

Classes that usually make are:

20 Mono

20 Hydro

40 Hydro

60 Hydro

90 Mono

90 Hydro

Daniel Richard · Feb 24, 2012

Bring em out. We'll be racing in Houston March 24-25.

Scott Miller · Feb 29, 2012

So are any of these motors for sale?

Wasted wages · Feb 29, 2012

Still on the fence......

I could use the cash,,,,but I would probably only sell all three with the pipes as a package....

and thats a big chunk of change....

but then again,,,,,I thought about trying one in my mono......

:wacko:

Daniel Richard · Feb 29, 2012

Put one in the old Husselcraft and bring it to the race. X mono is looking pretty strong.

Scott Miller · Mar 1, 2012

OK let me know which side of the fence you land on. I'm only looking for one (but might be interested in more) send me a PM when you decide.

HR.91 CMB

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