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Old 06-11-2005, 11:17 PM   #16
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Don't forget the OPS Speedster .21
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Old 06-11-2005, 11:25 PM   #17
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Yeah, OPS is OK. parts through horizon, but still cheaper to have OS.
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Old 06-12-2005, 06:41 AM   #18
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gearhead3....the parts on the horizon site are for the old motors....the OPS Speedster .21 was just released in March. There are two versions, the torque version and the speed version. For the torque version the motor/pipe combo is 394 and the pipe is also adjustable for low/mid/high coming with 6 shim (3 thick and 3 thin).
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Old 06-12-2005, 01:40 PM   #19
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your best bet would be the Jammin X1. Great out the box peformance and parts are available all over the place. Plus the price has gone down so that makes it even better
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Old 06-12-2005, 07:00 PM   #20
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Cool. I did not see any OPS engines at the US gas Championships today. Saw lots of RB OS and Jammin.....Was hoping to see someone running a OPS. They do well in boats, and the two that i have sold to people were fast for Sportsman. They were the old engine.........
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Old 06-13-2005, 08:35 PM   #21
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i will probably buy the os.rc nitro test it and dyno'ed it.it produces 2.94 hp .but i'm still undecided.the rb seems nice too
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Old 06-14-2005, 05:17 PM   #22
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one thing about the S3 is that you dont need all the hopups for it to be competitive. to only aftermarket parts you would need woul be the King heads towers and steering plate. if you get those your buggy will be indestructible.

also, go with the RB WS72. this engine screams, and is great for any track.....serios speed and power.
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Old 06-14-2005, 06:15 PM   #23
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Default how about this idea am i close?

I was thinking of asking the same question, which car due to after this season is over i am wanting to build a 1/8th scale and cant decide which one, i have raced electrics for 13 years and the off-road chassis only has a couple of choices, 1/8th scale seems to be a tougher choice very comparible to the touring car on-road choices. my hobby shop's dont carry much in 1/8 RACE vehicles, i believe in buying the best right up front and anything you add to the car is either replacment parts or BLING-BLING. i was looking at either the jammin car, hyper 7, S3, kyosho cars. the 1/8 scale cars to me look easier to drive than 10th scale, i am a big fan of 4 wheel drive buggy, i can wheel a elect car pretty good so 1/8 should be a easier transition cause i am learning tuning by running 1/10th gas.
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Old 06-14-2005, 11:42 PM   #24
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I think ALL of you guys are forgetting the MOST popular 1/8th scale offroad motor KNOWN TO MAN.lol.
The Famous "P5"
Almost EVERYONE I know uses this motor
Novarossi makes it and does it for a TON of other people.
Rex,Max Power,JP prefers this motor to tune off of and more.
Great motor with some Awesome power.
Car wise I dont think you can go wrong with a SINGLE car you listed.
Simply check your local area to see what is supported.
I personally HATE everything ofna touches.Just my opinion after owning 4 of their top cars.
I think all the cars you listed are WAYYY better than what they have to offer.
Goodluck.
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Old 06-15-2005, 06:52 AM   #25
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Hi TexRacer,

Out of curiosity, is the P5 you referring to the Turbo or non-turbo version or you've tried both ?

Appreciate your sharing... Thanks !

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Old 06-16-2005, 06:25 PM   #26
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Bad Mika-I dont think they even make a Turbo Version of this particular motor.
It's a 5 port LONG stroke motor.
5 port for torque and then the long stroke gives you the top end.
I like the RB WS7II on BIG fast flowing tracks but it doesnt have the GRUNT the P5's have.I have tried the C5 and prefer the P5 hands down.

Hope this helps.
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Old 06-16-2005, 09:09 PM   #27
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Quote:
Originally Posted by TexRacer
RB WS7II on BIG fast flowing tracks but it doesnt have the GRUNT the P5's have.I have tried the C5 and prefer the P5 hands down.

Hope this helps.
100% total agreement. I'm on my 2nd P5 and it's just starting to come in. This P5 is an old one from 2003 that I hadn't even unwrapped. My first P5 is still pretty decent but has alot of gallons through it already.

About RB, I just dusted off my WS7 (yup the OG!) and it still is really tight. I'm going to try this out w/ my JP2 pipe.

I just ordered the JP FX-21-N modified 5port. Hopefully it lives up to the hype.
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Old 06-16-2005, 09:15 PM   #28
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Default 421b

If i'm not mistaken the turbo head turbo crank version of the p-5 is the 421B. I have the top version and It runs runs really strong.
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Old 06-16-2005, 10:18 PM   #29
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You are indeed mistaken...

the P5 and 421B are different engines...P5 is a 5 port....421B is 8 port...

P5 uses 4 bolts on the cooling head...421B I believe is 6....
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Old 06-16-2005, 11:48 PM   #30
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upon further review, you are absolutely correct.
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