NismoSkyline17

I'm about to get a RB WS7-II and looking at running 30% fuel in it. It says that you have to add shims to the head to run anything higher than 25%. Well I looked at purchasing some RB head shims and they have 2 types of shims: long-stroke and standard. I can't find any where that says if the engine uses long-stroke and standard. Also how many extra shims would I need and what size? Thanks in advance.

jrabbito

You could take a look at the exploded view ( http://www.rbproducts.com/explose/RB.../01004-WS7.pdf )

The part numbers for the head shims are there.


John

Dnell

Why have you decided to use 30, not 25 to avoid having to use shims

NismoSkyline17

The stock engine runs perfect on 30% without adding extra shims. The reason I don't use 25 is because LHS doesn't carry it; only nitro in increments of 10. I just run a little colder plug than usual. I love this engine once I got the right pipe. BTW don't use a Jammin JP-1 pipe on the WS7-2; it kills the bottom end power.

Rob Phillips

iTrader: (6)

Yeah I never had to as any shims to my RB's to run 30%. Nismo what pipe you running now? I like the 2050 with my S7's.

NismoSkyline17

I'm running a Jammin JP-2 hard anodized pipe. Very sweet pipe. Works a hell of alot better than the JP-1.

JOK3R

glad I bought the jp2 tonight instead of the JP1. I am also running the WS7II and was debating on one or the other.

Striker

iTrader: (2)

Need help with id of this engine:

Soposed to be, a .12 V12 Rody part #01700-000425

I'm just not sure. The crank doesn't look right. It looks more like the 01700-000445. I don't know if being built in late '03 makes it a 425 crank. I bought this used so I don't have the box. Any help you can give me will be great. Thanks.

Pic of crank:

Striker

iTrader: (2)

Pic of # on block

JOK3R

is that rust in the first pic there?? on the crank an around the con rod??

Striker

iTrader: (2)

Maybe a little. No more than any other engine I've ever opened up.

raceblast

I have a non turbo RB x12 #215 engine. I am looking for the turbo button for it. Does anyone know where I can find one?

buboy28

the way i see it in the pics i think you are right but i hope we are wrong because that engine will have some trouble sooner or later

Striker

iTrader: (2)

All engines have trouble sooner or later.

penggoy

hmmm youre not using after run oil, are you? just a quick brush of dremel or sandpaper and then metal polish and its good as new.

JP-2 is good for WS7II and JP-1 for S7II (which I have)