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mppickett posted:

@ALB, I've always subscribed to the theory that intake passages on carbureted engines should be be smooth to aid aid flow, but some texture should remain to create turbulence to more completely mix the gas and air. Too much polishing and too much texture is bad so finding a happy medium is what I've always shot for. My cardboard, duct tape, play dough and vacuum cleaner flow bench didn't get shipped out here from Rhode Island - since it didn't work...

Great point about the gasket between the ports!

Anyway, does that make sense? Thanks, everyone!

I agree, Mike, the intakes ports need a little bit of texture and should never be polished. Interesting- you say your vacuum cleaner flow bench didn't work- any details?

Something you may want to consider- before I installed the 'back to the case' brass full flow fitting I spent a little time rounding the corners with a file (sadly, I didn't weigh it before and after, as this was before Bruce filled my head with perverted ideas of lightness), and then after getting it mounted as deep as possible (you need 2 taps, the 2nd cut down to thread deeper into the case) there was very little needed to be done to the under the pulley tin. A little heat, a little hammer work and the sheet metal clears both the fitting, the pulley and no cutting (with no hot pre-heated air able to enter the engine compartment) of tin was required. Btw- that's a full size Berg pulley and you can see nothing hits..

oil fitting clearancedoil fitting clearanced 1oil fitting clearanced- sheet metal

Sorry to hear about your hand- we're at the age where things like this don't heal nearly as fast as they used to! Last June my oldest (he's 20, 5" taller) was chasing me up the stairs (don't remember exactly what I said but I knew if I got caught I was in trouble!). I was givin' it for all it was worth (I really didn't want him to catch me), slipped on the last stair and hyper extended the ring and little fingers on my right hand when I hit the wall. We both ended up on the floor laughing (he was close enough that he tripped over me) with Beth yelling "will you to cut it out! There's too much testosterone around here!".

The 2 knuckles on my hand blew up like a balloon. I'm still feeling it in the ring finger... Al

Sorry, I don't remember the details of the build- I know it has Kadrons. You did a great job on the Hoover mods, btw. 1776? camshaft/rockers? stock valve heads? compression ratio? 

                                           TELL ME EVERYTHING!!!


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ALB posted The details of the build- I know it has Kadrons. You did a great job on the Hoover mods, btw. 1776? camshaft/rockers? stock valve heads? compression ratio? 

                                           TELL ME EVERYTHING!!!

Thanks, Al. Good info! 

I couldn't get reliable test-to-test data on my vacuum cleaner flow tester so I decided it wasn't worth more effort considering I do heads every 10 years.

On the engine, 1776 cc, dual 40 Kadrons, modified intakes to open up insides and port matching, 8 to 1 compression, W110 cam, 1 to 1 rockers, slightly massaged Mexican 43 heads, Bosch high output ignition module triggered by Speeduino ECU and a CBR 36-1 trigger wheel and hall effect sensor. Just a nice little engine to putt up to the 10,000 foot summit of our volcano and to dodge people distracted by the breaching whales and island views (including tiny bikinis!). 

I got the engine installed today and should try to start it some time tomorrow. Keep your fingers crossed for me.IMG_20200104_124037IMG_20200104_180523


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Good morning @Michael Pickett- I've heard that about the vacuum cleaner flow  benches; there's no way of quantifying measurements and all you get is a more or less (than last time) thing. That engine combo is a fun little beast, will be reliable, and will provide close to Super 90 power. You do mean 1.1:1 (late 1300-1600) rockers? 1:1 rockers are from the 40hp series engines. If/when you get bored, a little bit of a flycut on the heads (to raise the cr to 9:1) and some 1.25 rockers and it will feel like a different beast...  Al

Time to go back to bed for an hour or so and then catch the World Juniors Hockey final- Canada's playing Russia for Gold, and hopefully they'll come out looking to avenge the loss from earlier in the tournament...

PS- car's looking sharp (but then I've always been kind of partial to Speedsters with alloys... Al

Last edited by ALB

I'm ok, just a lot harder to make the switch to my non-dominate hand than I thought. I spent a day refabricating the CBR trigger wheel sensor bracket. I like to use Hall sensors and CBR likes VR sensors. I got that wired up this afternoon and spun the engine with the starter to check for an RPM reading (yep, it worked) and oil pressure. I didn't see any oil pressure after spinning it for nearly a minute so I called it a day. Maybe something will occur to me overnight (added oil, attached hoses, ...).

Finished hooking up the engine wiring harness and added the manifolds and carbs. Upgraded the fuel pump to a quiet rotary and replaced all the fuel and vacuum hoses. Did a lot of burping the oil lines out to the filter and finally got the oil pump primed. Got over 30 psi running the starter and decided it was safe to try to start it. After a couple of ECU timing adjustments (since I refabricated the crank sensor bracket), it fired up and seemed to run just fine. Seemed like a good time to break for dinner and a glass of wine. Tomorrow will be installing the muffler, cleanup and road test.  

Safety Jim Buffalo NY. posted:

I'm impressed!  After the bunch of bug motors that I have built, rebuilt or gone through, this CB Performance 1716 kit has been a challenge for me.  I am hoping to have it running.....properly in the next week or so.  However, I am keeping my fingers crossed that I can solve the compression issue and move on to carb tuning soon.

Nice job MPPickett!!!!

Thanks, Jim. It seems like no matter how many you've built, der gremlins always find a way to surprise you. Keeping my fingers crossed on you solving the compression bug.


Mike:  Now that you’re on the road, my wife has sent your photo, above, to her friend who also moved to Kihei (small world, huh?) a year ago with her very young family (they love it there).  

So don’t be too surprised if a young woman wanders over in a parking lot and says, “Hi!  Are you Mike?  Do you know a Gordon Nichols?”  

Just reply, “Oh.....  Are you Lindsey?”

Unfortunately, neither Massachusetts nor Rhode Island would allow no bumpers when I was first on the road with my speedster, but they would allow Nerf bars so that's how we went.  I really like the classic bumpers on a classic-sided body, especially if they're pulled in close to the body, but the Outlaw style seems to look much better with either no bumpers or Nerfs (if ya gotta have sumthin out there).


It was nice not to need a front license plate while in South Carolina, but the holes and mount were already there so plated it became.  The Palm and Crescent looked pretty good, though.....   Still have a Palm and Crescent decal on the rear of the car, white-on-white so it only shows up when the light's just so.  That's pretty cool.

Feels like I'm watching an episode of "Through the Glass, Darkly", only I'm not schizophrenic (at least the voices keep telling me I'm not - Can't tell whether the voices are but they sound nice...)

OK, so I got rid of the double post (and don't blame me, the forum server didn't like me for a minute or so, I think) and I'll try posting the photo again here, but you have all seen it enough, anyway;  Pearl, sitting on the show field at Carlisle, top up (yes, it was probably threatening rain) and Nerf bars prominently displayed.  Whoopie.  

Been working outside in freezing weather for over an hour sans-gloves (no, I do not envy Stan).  These fingers really don't want to type right now, so I'll go.

Car (and Nerf Bar) shot #2:



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Gordon.....I really like the paint on your car !  It's the color I have chosen for my Spyder.

Probably Burgundy leather upholstery with "Practical Black" carpet accented with some Burgundy . Frame will be Burgundy and so will the darts. The darts will be outlined in gold and the field in Burgundy. A couple other items (small ones) will be gold too.  Right now I'm thinking fake Fuch's with black spokes and polished rims.

All this could change but that's what I'm thinking today. Ha ha ............Bruce

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