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Brian_e
Samba Member
Joined: July 28, 2009
Posts: 3293
Location: Rapid City, SD
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 Posted: Thu Mar 04, 2021 9:47 am Post subject: Re: CB Performance 69.5MM Stroker crank |
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Dave, I know you are always super concerned about a tight deck height. 
Most guys should be using one just to help their deck height out. The extra .0196" will help a bunch especially the longer 92 & 94mm bore cylinders.
Brian
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mark tucker
Samba Member
Joined: April 08, 2009
Posts: 23937
Location: SHALIMAR ,FLORIDA
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| Posted: Thu Mar 04, 2021 10:33 am Post subject: Re: CB Performance 69.5MM Stroker crank |
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| NJ John wrote: |
| One plus, you can tell everyone that you have a stroker. |
and get out run by .....I wouldent exzactly want to brag on a .020" stroke... nhra was .014" stroke alowance, I dont know what it is nowdays. I assume this crank brings the cc up to the 1600 mark or very close.so your not leaving any cc's in the dirt. great for class stuff, but like i said I see no up side to it for a stronger street performance car when a long stroke will make more hp&smiles for about the same $$ |
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Jason37
Samba Member
Joined: April 21, 2004
Posts: 1028
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| Posted: Thu Mar 04, 2021 11:33 am Post subject: Re: CB Performance 69.5MM Stroker crank |
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| Brian_e wrote: |
I don't see any reason to get new heads unless yours are blown out or have other issues.
I am doing a quick set of heads for a guy in Canada doing almost the exact same thing you are. Stock appearing build for a notch with a little more power.
Here is what we are doing for his.
Stock case, whatever machine work needed
stock crank rebuilt, rebuilt stock rods,
stock flywheel lightened about 2lbs. everything balanced good.
AA 88mm thick walls, .045" deck height
OE single port heads, I will port them, do a good valve job, flycut for 8.5cr. new valves, and new guides. Single HD springs.
Stock rockers on solid shafts.
CB2232 cam, advanced 2 deg. CB cheap lifters, stock push rods cut down.
1 3/8" header and muffler, or VSpeed muffler.
I might be able to toss another set of heads together when I do his since they will be almost identical.
Brian |
Maybe I should stroke it as well, 1691!! although this was just supposed to be a get me by for the summer build until I can get all the parts ready for the 2270. |
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Brian_e
Samba Member
Joined: July 28, 2009
Posts: 3293
Location: Rapid City, SD
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| Posted: Thu Mar 04, 2021 12:10 pm Post subject: Re: CB Performance 69.5MM Stroker crank |
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| Jason37 wrote: |
| Brian_e wrote: |
I don't see any reason to get new heads unless yours are blown out or have other issues.
I am doing a quick set of heads for a guy in Canada doing almost the exact same thing you are. Stock appearing build for a notch with a little more power.
Here is what we are doing for his.
Stock case, whatever machine work needed
stock crank rebuilt, rebuilt stock rods,
stock flywheel lightened about 2lbs. everything balanced good.
AA 88mm thick walls, .045" deck height
OE single port heads, I will port them, do a good valve job, flycut for 8.5cr. new valves, and new guides. Single HD springs.
Stock rockers on solid shafts.
CB2232 cam, advanced 2 deg. CB cheap lifters, stock push rods cut down.
1 3/8" header and muffler, or VSpeed muffler.
I might be able to toss another set of heads together when I do his since they will be almost identical.
Brian |
Maybe I should stroke it as well, 1691!! although this was just supposed to be a get me by for the summer build until I can get all the parts ready for the 2270. |
I am still a big fan of stock OE cranks for this type of engine. Amazing quality, and they are pretty much sitting around everywhere.
Brian
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Lingwendil
Samba Member
Joined: February 25, 2009
Posts: 3988
Location: Antioch, California, a block from the hood
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danimalp
Samba Member
Joined: October 30, 2020
Posts: 5
Location: WA
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| Posted: Mon Sep 27, 2021 4:47 pm Post subject: Re: CB Performance 69.5MM Stroker crank |
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| Putting a 69.5 CB crank in my 1776 build! will make it a 1788cc, Should be pretty cool when I'm done! |
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veedubcrazy
Samba Member
Joined: February 14, 2005
Posts: 2130
Location: La Porte, Tx.
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| Posted: Mon Sep 27, 2021 5:12 pm Post subject: Re: CB Performance 69.5MM Stroker crank |
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| vwracerdave wrote: |
They will work great in any stock 1500/1600 engine. The extra .5mm stroke is to get you to the max engine size limit in those 1600cc limited classes.
There will be 200 new threads about those awesome 1653cc engines. |
Classic answering!
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1967 Deluxe Sedan |
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Paul.H
Samba Member
Joined: April 03, 2015
Posts: 613
Location: England
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| Posted: Tue Sep 28, 2021 12:41 am Post subject: Re: CB Performance 69.5MM Stroker crank |
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| All those "Ting Tong" forged cranks will take 35psi boost and nitrous . The 69mm obviously is the strongest even in the 4140 alloy would probably take 45psi and the lack of nitriding is a good thing in such an application. |
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Ohio Tom
Samba Member
Joined: February 09, 2006
Posts: 1660
Location: Marshallville Ohio
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| Posted: Tue Sep 28, 2021 5:39 am Post subject: Re: CB Performance 69.5MM Stroker crank |
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I just built a motor with one.
Works well.
Easy mini stroker.
1928cc motor.
Why not.... |
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NJ John
Samba Member
Joined: September 21, 2007
Posts: 2224
Location: HdG, MD & NJ
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| Posted: Tue Sep 28, 2021 5:46 am Post subject: Re: CB Performance 69.5MM Stroker crank |
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Now I have to memorize a whole new crank/cylinder displacement group. Lol
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1973 standard, yellow, lowered, 3” narrowed front, 1600 blo-thru turbo w/single dell 15.4@86, so far
11.41 et buggy. Long gone
Let’s go O’s! Let’s go O’s!
https://www.youtube.com/@AirSpooledGarage
Last edited by NJ John on Tue Sep 28, 2021 6:11 am; edited 1 time in total |
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Ohio Tom
Samba Member
Joined: February 09, 2006
Posts: 1660
Location: Marshallville Ohio
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| Posted: Tue Sep 28, 2021 5:50 am Post subject: Re: CB Performance 69.5MM Stroker crank |
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| Paul.H wrote: |
| All those "Ting Tong" forged cranks will take 35psi boost and nitrous . The 69mm obviously is the strongest even in the 4140 alloy would probably take 45psi and the lack of nitriding is a good thing in such an application. |
Why is lack of nitriding good?
It's just a surface hardening treatment. |
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Paul.H
Samba Member
Joined: April 03, 2015
Posts: 613
Location: England
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| Posted: Tue Sep 28, 2021 6:16 am Post subject: Re: CB Performance 69.5MM Stroker crank |
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| Ohio Tom wrote: |
| Paul.H wrote: |
| All those "Ting Tong" forged cranks will take 35psi boost and nitrous . The 69mm obviously is the strongest even in the 4140 alloy would probably take 45psi and the lack of nitriding is a good thing in such an application. |
Why is lack of nitriding good?
It's just a surface hardening treatment. |
The cracks start in the crispy hard nitriding then travel through |
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Ohio Tom
Samba Member
Joined: February 09, 2006
Posts: 1660
Location: Marshallville Ohio
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| Posted: Tue Sep 28, 2021 6:47 am Post subject: Re: CB Performance 69.5MM Stroker crank |
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| Paul.H wrote: |
| Ohio Tom wrote: |
| Paul.H wrote: |
| All those "Ting Tong" forged cranks will take 35psi boost and nitrous . The 69mm obviously is the strongest even in the 4140 alloy would probably take 45psi and the lack of nitriding is a good thing in such an application. |
Why is lack of nitriding good?
It's just a surface hardening treatment. |
The cracks start in the crispy hard nitriding then travel through |
Crispy Ting Tong....
Got it... |
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Erik G
Samba Member
Joined: October 16, 2002
Posts: 13280
Location: Tejas!
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| Posted: Thu Sep 30, 2021 8:36 am Post subject: Re: CB Performance 69.5MM Stroker crank |
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| Paul.H wrote: |
| All those "Ting Tong" forged cranks will take 35psi boost and nitrous . The 69mm obviously is the strongest even in the 4140 alloy would probably take 45psi and the lack of nitriding is a good thing in such an application. |
why not just say Chinese crank? Fuck outta here with that |
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maplesyrup
Samba Member
Joined: May 27, 2009
Posts: 182
Location: Bristol
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| Posted: Sun Oct 03, 2021 10:29 am Post subject: Re: CB Performance 69.5MM Stroker crank |
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| Erik G wrote: |
| why not just say Chinese crank? Fuck outta here with that |
Agreed.
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Paul.H
Samba Member
Joined: April 03, 2015
Posts: 613
Location: England
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| Posted: Sun Oct 03, 2021 11:14 am Post subject: Re: CB Performance 69.5MM Stroker crank |
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Virtue signals received loud and clear. I was wondering if anyone would take that bait
I guess a game of Ping Pong is out of the question |
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SparksLP
Samba Member
Joined: May 26, 2009
Posts: 217
Location: Ohio
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| Posted: Sun Aug 21, 2022 6:57 pm Post subject: Re: CB Performance 69.5MM Stroker crank |
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Reviving an old thread: Anyone end up using this crank, any feedback? Also, If you put this in an otherwise stock 1600DP, what would change? HP? Torque? Basically nothing? Long term I plan on building a performance 1600 motor for a vintage class type setup, and it would keep the displacement below 1600cc! Let me know if you guys have any feedback!
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Tom
1966 VW Beetle Sunroof Sedan |
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NachoCar
Samba Member
Joined: June 17, 2013
Posts: 323
Location: Ms
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| Posted: Mon Mar 20, 2023 6:21 am Post subject: Re: CB Performance 69.5MM Stroker crank |
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| What he /\/\ said !!?? |
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jimmyhoffa
Samba Member
Joined: February 16, 2014
Posts: 1059
Location: St. Louis
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| Posted: Mon Mar 20, 2023 7:00 am Post subject: Re: CB Performance 69.5MM Stroker crank |
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It would change not much, except the 69.5mm one I got was twice as far out of balance as an untouched random OE VW crank. My 78.4mm a few months previous was just as bad. In the future if I can't justify counterweight for the application, I can't imagine buying one of these over finding a good stock crank and having it balanced.
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1974 Chenowth 2RL #1244 Street Legal
My other car isn't ridiculous. |
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NachoCar
Samba Member
Joined: June 17, 2013
Posts: 323
Location: Ms
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| Posted: Mon Mar 20, 2023 7:15 am Post subject: Re: CB Performance 69.5MM Stroker crank |
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My goofy predicament is that I found a 'Deal" on a set of dual carbs that are a little too big for my current displacement. I'm wondering if the mini-stroker and 88 mm cylinders would help me when combined with smaller jetting?
edit: so when used with 87 mm slip-ins we are looking at 1694, I reckon. Hhhhmmmm
Thanks |
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