2275cc stoplight to stoplight

[fl59bug]

That was a pretty huge and goofy accounting error I made there in only counting the width increase on one side. 1.3" more width is a real problem unless I want to baja the back of my car. I guess I'd have figured it out when I saw the back of my car crumpling up as it sat down on the valve covers. Not really, with the light weight of the back of a '59 bug that would never happen unless bulldozer was placed on top of the bug, then the bug lowered onto the engine. LOL

I'll give a lot of consideration to the 5.325 rods. I see that CB sells those as well as 5.4 and 5.5 Super Race rods. I'm dying to be working on this 2332 engine instead of just talking about it, but I have to wait for the funds to come in to buy the bottom end now that I've got the top end. In the meantime I need to do some cleanup of the parts that came with my WW Okrasa kit so I can get ready to install those on my 36hp. This can be my winter project.

[madmike]

Luved my old 2332 with a short Porsche length rods, even with a mild W120 cam, it sure haulded A$$, Like John stated I needed to shorten the piston skirts, very easy to do
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'Black Ice'Drag Buggy 'Turbo'
Rail Buggy 1915 turbo
76 Drag/Street bug 2180cc 'Turbo' 11:85 @113 mph"If I go any faster I'll burn up the Hamster" ,gets 28 mpg. also 10/09/22 11.90 @115 mph
"If I'm ever on Life Support,UNPLUG Me, Then Plug me back In see if that Works"

[fl59bug]

I believe besides narrowing the engine, one other benefit of running shorter rods is more low-end torque. What about high rpms? Does rod length enhance/impede high-rpm performance?

To hit upon the theme of this thread, most street-battles are won stoplight to stoplight anyway, so no high rpm runs unless I go racing I guess.

[buguy]

Agreed on the stoplight to stoplight. What I've been doing is make sure to either start from a stop or a very slow roll where I can be in second and ready to spool the turbo up good. That way they are probably still in first and ready to spin tires still. Once I'm ahead and maybe 60 mph, I just get back out of it like the race is done. Seems like at 60-65 mph is where the big engine cars can go right around me. They have been accepting it so far! I have a 4.37 r&p so my car probably would barely go 100 mph anyway!
The roads I race on are only 50 mph zones so it's acceptable to get out of it around 60 anyway!

[King_vw61]

I’ve been running with no decklid, easier to make changes but it’s really hard to hide what you have it also doesn’t sound like a Volkswagen, sounds more like a Harley at idle. Being in a naturally aspirated Bug your advantages how fast it gets off the line and if you’re racing a car faster than you you hope to scare them into not finishing. That’s what happened with the Porsche GT3 yesterday I got far enough in front of him that after second gear he didn’t want to play anymore

[jpaull]

[Clatter]

FWIW,

The B pistons were originally designed for stock length rods and an 82 crank.

Not that this works all of the time,
And you still have to check everything,
But that was the idea when they made the stuff..
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Bus Motor Build

What’s That Noise?!?

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James Beam used a 5.325 rod with an 84mm stroke crank in his engine build shootout 2332. If I remember correctly, he also needed to clearance the piston underneath the wrist pin along with the skirts. This was with a Wiseco piston though. Regardless, there will be out of the ordinary machine work needed.

It gets real tight....

[madmike]

Yep remember his and my 2332 built was the same time
torque Monsters and mine rev to 8k often
_________________
'Black Ice'Drag Buggy 'Turbo'
Rail Buggy 1915 turbo
76 Drag/Street bug 2180cc 'Turbo' 11:85 @113 mph"If I go any faster I'll burn up the Hamster" ,gets 28 mpg. also 10/09/22 11.90 @115 mph
"If I'm ever on Life Support,UNPLUG Me, Then Plug me back In see if that Works"

[74 Thing]

[74 Thing]

Here is Jim's post
https://www.thesamba.com/vw/forum/viewtopic.php?t=231563&highlight=fk

[bugguy1967]

In my current build I have 5.325” rods with a 82mm stroke and special 96mm pistons. The pin is very close to the counterweights of my Chinese crank. I still need to do a little clearance work, and the pistons already have a profiled skirt to clear most stuff. With a 84mm stroke and 5.325” rods, it’s best to custom order a set of pistons.

I had these made to run with a 90mm stroke and 5.700” rods, and be exactly the width of a stock engine. They clear the crank despite only having a 1.6 ratio.

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"A petrol engine can start readily, run smoothly and give every appearance of being in good order, without necessarily being in good tune." - Colin Campbell, "The Sportscar Engine"

[fl59bug]

[fl59bug]

[fl59bug]

[fl59bug]

Just ordered the FK46 from ACN. I still need the ally case, oil pump and sump, and a few odds and ends to be able to get started mocking it up. Soon, soon... (hopefully!)

[UK Luke 72]

[fl59bug]

Yeah no, no yeah... That is a perfectly legit question.

I guess the reason I went with the FK over web or cb is mainly that Mark Herbert (RIP) mentioned how with the combo I'm working on and the FK46 he "destroyed" anything that moved, at least stoplight to stoplight lol. This and the fact that back in the day my 1776 ran an Engle 120, which in restrospect was far too much cam but man did that little engine wind out.

[UK Luke 72]

Awesome!
Sure it'll pull, the rate of acceleration on those must be crazy!
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2276 Beetle build https://www.thesamba.com/vw/forum/viewtopic.php?t=670744&highlight=2276+beetle+daily
2276 EFI Conversion https://www.thesamba.com/vw/forum/viewtopic.php?t=689172

[fuguboy]

CB used a 2300 cam w/1.25 rockers and Panchito heads in a video and made 181hp https://youtu.be/De8iVAAzb-U very impressive what Pat Downs is building.