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mark tucker
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Joined: April 08, 2009
Posts: 23937
Location: SHALIMAR ,FLORIDA
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 Posted: Thu Feb 28, 2019 7:59 pm Post subject: Re: 85.5 Stroker Pistons??? |
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| thats a lot of weight hanging off those long head studs holding everything togeather.....be a good guy and retorque the lower head studs tomarow please. |
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pyrOman
Fire Master
Joined: July 21, 2003
Posts: 12409
Location: Over 2002 posts deleted!
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| Posted: Thu Feb 28, 2019 7:54 pm Post subject: Re: 85.5 Stroker Pistons??? |
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WOW! Time flies even when you're NOT having fun! 
Anyway, the 1800 stroker is going away in this bus. I suggested a TriMil header with a set of 40 Webers and boy, it really brought some serious life to it! It fires right up and holds idle within a minute! It's going to be one very happy bus! 
Also did get the 1700 stroker built and it's currently running in the Plump Truck like a champ! 
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pyrOman
Fire Master
Joined: July 21, 2003
Posts: 12409
Location: Over 2002 posts deleted!
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| Posted: Fri Mar 24, 2017 7:24 am Post subject: Re: 85.5 Stroker Pistons??? |
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| Lingwendil wrote: |
Naw, better sleeper would be a gutted oil bath with a gauze element inside, would also let you run the factory preheat for nice warmup performance and all that jazz...
Looks good though. |
I do have a stock air cleaner but this "new" carb came to me with this one which is a K&N. At least it is the only thing that isn't stock looking and it is performing awesome! Bug just loves to cruise 75-80 on the freeway at some 3500 to 3800 rpm and if I punch it quickly jumps to 90+!!!
Got the carb off another motor and just threw it in it, so I don't know what kind of jetting it has. However, guessing is fairly big because at least the oil runs very cool! At speed the "head temp" runs around 350 but that's because I have the sender right at the exhaust flange on #3.
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Lingwendil
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Joined: February 25, 2009
Posts: 3988
Location: Antioch, California, a block from the hood
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pyrOman
Fire Master
Joined: July 21, 2003
Posts: 12409
Location: Over 2002 posts deleted!
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| Posted: Thu Mar 23, 2017 10:31 am Post subject: Re: 85.5 Stroker Pistons??? |
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| Howard 111 wrote: |
Where are those pictures you promised us? We like pictures!  |
This is all I have on the process, the clearing since that's the only difference insofar as building an engine is concerned.
The look is a total sleeper!
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mark tucker
Samba Member
Joined: April 08, 2009
Posts: 23937
Location: SHALIMAR ,FLORIDA
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| Posted: Wed Mar 08, 2017 9:42 am Post subject: Re: 85.5 Stroker Pistons??? |
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I think the hpmx will add a lot more mpg and smiles. also for other guys contemplating build like this there are lots of mfr's using the 22 mm pin side with diferent pin hights, and many diferent bore sizes too. all you have to do is look.you may even find some that are just big enough to use in some old cylinders that need over sizing/replacing. many combos can be achieved if you only use a little brain power.  ..well it might take a little more than just brain power. |
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pyrOman
Fire Master
Joined: July 21, 2003
Posts: 12409
Location: Over 2002 posts deleted!
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| Posted: Tue Mar 07, 2017 7:13 am Post subject: Re: 85.5 Stroker Pistons??? |
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I like pix too, but with a "crew" consisting of me, myself and I, it's hard to stop mid project for picture taking. In any case, it looks totally stock. The only difference is the 78 crank. 
On this next build I shall try to snap some of the clearance, though it should be a lot less of it being a 74 crank.
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Howard 111
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Posts: 1827
Location: Virginia
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FreeBug
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Joined: March 12, 2012
Posts: 4278
Location: deepest, darkest Switzerland
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| Posted: Mon Mar 06, 2017 2:55 pm Post subject: Re: 85.5 Stroker Pistons??? |
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| Be a man about it. Lick your finger, listen for a sizzle, suppress the scream. |
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rugblaster
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Joined: March 31, 2016
Posts: 1172
Location: San Angelo, Texas
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| Posted: Mon Mar 06, 2017 2:41 pm Post subject: Re: 85.5 Stroker Pistons??? |
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One of those laser temp shooters are good for checking for dead holes....A poorboy way to do it is with your kid's water gun or a spray bottle. Fire at each header tube coming out of the head and the water will instantly vaporize, unless you have a problem.
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'69 Karmy, '69 Camper, Meyers clone, '65 drag bug, 10.78 @ 128 (sold it) '51 Dodge farm truck,
'09 MB E350 '18 MB E400, '65 Plymouth Valiant convertible and a '19 Ford F250 King Ranch (nicer, but dirty, farm truck)
VWoA factory trained line tech 75 till 90 or so
ASE Master Certification
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TCU ......GO FROGS!!!!!! |
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pyrOman
Fire Master
Joined: July 21, 2003
Posts: 12409
Location: Over 2002 posts deleted!
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| Posted: Mon Mar 06, 2017 2:40 pm Post subject: Re: 85.5 Stroker Pistons??? |
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| Lingwendil wrote: |
| Feed them both with Kadrons or IDF's and it will be even better! |
I'm pretty happy with the Bug "as is" since it's performing great and gives awesome mileage. The Dormy and the Plump Truck both average 14 mpg. 
The Plump Truck does run a pair of Dellortos so that will certainly improve on power!
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Lingwendil
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Joined: February 25, 2009
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Location: Antioch, California, a block from the hood
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pyrOman
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| Posted: Mon Mar 06, 2017 1:07 pm Post subject: Re: 85.5 Stroker Pistons??? |
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Round 2... Been a couple of months since driving the Bug, many reasons for that but just got it running again yesterday. Scored me a stock carb and even with the pea shooters this thing has some really quick pick up!!!
Loving it so much that after taking the Bug's tired engine apart, have now decided to stroke it too! This time a 74 brand new crank. Just ordered the 85.5 stroker jugs and 5.5 rods. Prolly still use the 100 cam on it. Thinking to throw it in the Plump Truck which is driving good but lacking in power. 
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pyrOman
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| Posted: Mon Dec 05, 2016 7:56 am Post subject: Re: 85.5 Stroker Pistons??? |
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Update: Been running the little stroker on the Bug and it does have great power! Having issues with idling when cold but it most likely has to do with the old carb. Aside from that, cruising at say 70-75 mph and stomping on the pedal, it jumps very quickly to 85!!! It likes it and so do I!!!
I have to take apart the Dormy's engine before Havafew in a couple of weeks. I think I should take this little stroker, put the Dellortos on it and install it in the Dormy just to see how it does!
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mark tucker
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Joined: April 08, 2009
Posts: 23937
Location: SHALIMAR ,FLORIDA
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| Posted: Mon Oct 17, 2016 2:15 pm Post subject: Re: 85.5 Stroker Pistons??? |
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| look for vacume leeks...like dirty stripes on the carpet .there are a few things that can cause your issue. but I dont mess with the hollywebbler progressive stuff. |
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pyrOman
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| Posted: Mon Oct 17, 2016 10:15 am Post subject: Re: 85.5 Stroker Pistons??? |
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FWIW, I did check temps while on the test stand. Though there was difference between them at the pipes, the head temps just at the port exits were within 20 or so degrees from each other. Once I got it to idle and run for a while, I threw it into the Bug. That was pretty much all the time I had to deal with it last night and even with its issues it took me to work (13 miles) just fine with plenty of power, though I didn't "push it" all the way. Work in progress. At least it isn't leaking oil... yet!
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mark tucker
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| Posted: Mon Oct 17, 2016 9:12 am Post subject: Re: 85.5 Stroker Pistons??? |
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| fire it up for a few seconds(20) and turn it off then feal the header pipes carfuly to find the cool one ans that will tell you where to be looking for an issue. |
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pyrOman
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| Posted: Mon Oct 17, 2016 9:09 am Post subject: Re: 85.5 Stroker Pistons??? |
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| vwracerdave wrote: |
| pyrOman wrote: |
| a "special bus grind" cam which I have yet to measure |
It's the same as an "RV" cam from the 70's. Good thing it's not a 3/4 race cam. |
Got it from Bill May many moons ago. I threw it in an 1835 also put together with used parts, which of course was short lived as the case started coming apart. But it was a screamer!!! It would squeal the tall tires on the Plump Truck with ease! Mucho power!
I'll try to get this motor to run better, as in smooth. It's pretty much a "test bed". If it does perform as I think it should, I will build a similar one properly with new parts and such. As I said, I already have a brand new 76 or 78 crank. With these pistons and maybe a mild cam, it may be a better choice of engines for the Bug. Plus if it's torqy enough, it may double as a emergency replacement for the Dormy!
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vwracerdave
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Joined: November 11, 2004
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Location: Deep in the 405
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| Posted: Mon Oct 17, 2016 8:54 am Post subject: Re: 85.5 Stroker Pistons??? |
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| pyrOman wrote: |
| a "special bus grind" cam which I have yet to measure |
It's the same as an "RV" cam from the 70's. Good thing it's not a 3/4 race cam.
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pyrOman
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| Posted: Mon Oct 17, 2016 6:45 am Post subject: Re: 85.5 Stroker Pistons??? |
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Okay, thanks all for the feedback/info! 
Finally did get it all together and fired up! Got the the stroker pistons and also went with the 5.5" rods which went to zero deck, 0.040" shims took care of that. Stock dual port heads pulled from a dead motor but looking almost like new, a "special bus grind" cam which I have yet to measure, and fed by a Holley (by Weber) progressive carb which was running fine on the Bug's 1600. Also running a 009 distributor on points. Had a hard time getting it to idle and has an intermittent "miss". Took off the carb, blew off all ports and jets, replaced the used plugs with another set of used plugs and at least got it to idle, tough rough. After some tweeking, installed it in the Bug.
It was too late for a test drive but drove it to work today and it ran well. Still with a bit of a miss and does need quite some time to warm up before idle sets. The bottom end was put together with used parts from my pile and of course the oil pressure drops after it warms up. Now, the reason I put this one together was as a spare motor to keep the Bug running while I rebuild its 1600. I do have another 76 or 78 crank which I may use on that rebuild if this set up works out.
Anyway, will prolly do a tune up, swap distributors, adjust, ect. to see if I can make it run/idle smoothly but so far so good.
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