200x stroker motor Piece of History

**oscarmayer** · 08-05-2009, 09:36 AM

ok question, how do you guys plan to get the extra "stroke" if you have as tocker crank and stuff? it may be cheaper to jsut produce a longer rod, or see if an existing machien has a longer rod like maybe a 250 or a 350x? hrmm gets ya thinking!!!

**oscarmayer** · 08-05-2009, 09:37 AM

Originally Posted by WIkid500

Shortline that is awesome! Thanks for the pic of the cam cover. I can do that part easily with and end mill in the bridgeport.

Dirtcrasher I hear ya on the machining of aluminum. I think I will have some parts cut on the water jet this fall. I can surface grind them to thickness, from there just use some anaerobic sealer on both sides and it should seal up nice and dry.

The worst part is going to be machining the crank, I'm still running that one through my head.

yea i'm thinking a logner rod may be better. plus the "dwell" time will makethe motor think it's larger than it is and offer up more torque for sure!

**WIkid500** · 08-05-2009, 10:20 AM

Originally Posted by oscarmayer

yea i'm thinking a logner rod may be better. plus the "dwell" time will makethe motor think it's larger than it is and offer up more torque for sure!

Think man you can't just add a longer rod to gain stroke... That would just move the piston up from where it usually is. You need to move the rod OUT on the radius of the crank to gain stroke.

**seadoo650** · 08-05-2009, 06:18 PM

Originally Posted by WIkid500

Think man you can't just add a longer rod to gain stroke... That would just move the piston up from where it usually is. You need to move the rod OUT on the radius of the crank to gain stroke.

DING DING DING.....We have a winner. Sometimes it's hard to understand the workings of it.

**shortline10** · 08-06-2009, 01:21 PM

Just got done restoring the flywheel cover . This had a-lot of deep scratches and a few dings . I am trying to keep as many original part as I can . I chem stripped it and filled a few imperfections and gave it a new coat of paint . Next step is the head . I have a 84X motor with very little time on it so I think i'll pull the head and break out the porting tools !!!!!

**shortline10** · 08-07-2009, 08:17 PM

After about 8 hours on and off I finished porting the new head for the stroker motor today

. Opened it up quite a bit because I'm thinking this motor is really going to need to breathe

.

**The Goat** · 08-07-2009, 10:54 PM

how does the cover still little exciter thing still fit up top with it machined down 5mm?

**AutoXer** · 08-07-2009, 11:08 PM

Originally Posted by The Goat

how does the cover still little exciter thing still fit up top with it machined down 5mm?

the cover wasn't machined down it was the recesses that the bolts come through that were machined down

**Bryan Raffa** · 08-07-2009, 11:17 PM

all I gotta say is Im glad you got the motor and broke it down the way you did .. I have a 84 screaming for a motor like that!!! I hear .. that another fast 200x from ohio..might hit the ice this year in NY...

**shortline10** · 08-09-2009, 09:29 AM

The stroker motor is all back together now

. Didn't use any base gaskets just a light film of gasket sealer so It would keep the deck piston height correct . I installed a NOS set of PM racing valve springs and a NOS Curtis Sparks full race cam . This was a fun motor to bring back to life but now is the dilemma of which 200x do I want to put it in ????

. Its going on the shelf for now so I can get back to my Sprint atc 90/180 project .

**oscarmayer** · 08-09-2009, 09:58 AM

Originally Posted by WIkid500

Think man you can't just add a longer rod to gain stroke... That would just move the piston up from where it usually is. You need to move the rod OUT on the radius of the crank to gain stroke.

um hello? what about that 5mm spacer your adding? :P

**oscarmayer** · 08-09-2009, 10:04 AM

i personally do not think it's a good ideal to fill in stuff with paint. too much paint can cause heating issues. I would have blasted it, sanded, wet sanded smooth then paint the cases. But eh, if ytour not too worried about it, that's ok.

how do you know you ported it right? jsut opening the port doesn't mean it's goign to flow right. if ported incorrectly you can actually end up with worse performance than a stocker untouched setup. I've seen this happen tons of time. once a head is put on a flow bench the truth comes out. opening can give more volume, but the "flow" and sustainable flow rates are what are important in performance.

anyway, good luck and hope things work out great for ya!

**shortline10** · 08-09-2009, 10:20 AM

Originally Posted by oscarmayer

i personally do not think it's a good ideal to fill in stuff with paint. too much paint can cause heating issues. I would have blasted it, sanded, wet sanded smooth then paint the cases. But eh, if ytour not too worried about it, that's ok.

how do you know you ported it right? jsut opening the port doesn't mean it's goign to flow right. if ported incorrectly you can actually end up with worse performance than a stocker untouched setup. I've seen this happen tons of time. once a head is put on a flow bench the truth comes out. opening can give more volume, but the "flow" and sustainable flow rates are what are important in performance.

anyway, good luck and hope things work out great for ya!

First off I didnt just fill the motor cases with paint they were chem stripped and repainted so i'm really not sure what your getting at .

I have been building and porting honda motors sence the 80s and learned a few tricks in my day and I'm not just a kid with a Dremal tool like you seem to think ??

**oscarmayer** · 08-09-2009, 04:17 PM

Originally Posted by shortline10

First off I didnt just fill the motor cases with paint they were chem stripped and repainted so i'm really not sure what your getting at .

I have been building and porting honda motors sence the 80s and learned a few tricks in my day and I'm not just a kid with a Dremal tool like you seem to think ??

well good then it shoudl work fine. point is a lot of peopel do not knwo that I jsut stated. it wasn;t a negative remark at all so why being suck a pissy? I don't get it. people make comments in my threads and I don;t get pissy. sheesh. grab a beer and chill. no one said you didn't know anything. most don't know about porting. but then again, I'm sure you know a flow bench is the only real way to ensure your porting it correctly which is why i would never port w/o one.

cases: you never started anything except "I filled the scratches with paint" what is anyone supposed to think? Half assed info passed along may get you halfassed comments based on info started even if it's not exactly what you did as we are not there with you to see how you actually did it. get it? aghain why so pissy? sheesh.....

**shortline10** · 08-09-2009, 05:01 PM

Originally Posted by oscarmayer

well good then it shoudl work fine. point is a lot of peopel do not knwo that I jsut stated. it wasn;t a negative remark at all so why being suck a pissy? I don't get it. people make comments in my threads and I don;t get pissy. sheesh. grab a beer and chill. no one said you didn't know anything. most don't know about porting. but then again, I'm sure you know a flow bench is the only real way to ensure your porting it correctly which is why i would never port w/o one.

cases: you never started anything except "I filled the scratches with paint" what is anyone supposed to think? Half assed info passed along may get you halfassed comments based on info started even if it's not exactly what you did as we are not there with you to see how you actually did it. get it? aghain why so pissy? sheesh.....

It's called respect and i'm going to get a beer rite now

Thread: 200x stroker motor Piece of History

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Flywheel cover

Stroker Motor Head Ported

Stroker Motor Back Together

What!!!!!!!

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