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Rafo67PE
Samba Member
Joined: September 25, 2019
Posts: 42
Location: Lma
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 Posted: Tue Aug 09, 2022 6:04 pm Post subject: Break in - first 50 miles |
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2276
10.5:1 CR
Web 86C - CB Performance 1.4 rockers
Steve Tims stage2
48 IDF
1 5/8 A1 Sidewinder
https://www.youtube.com/shorts/zaSuM7xSwrw |
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74 Thing
Samba Member
Joined: September 02, 2004
Posts: 7393
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| Posted: Tue Aug 09, 2022 6:12 pm Post subject: Re: Break in - first 50 miles |
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| Don't baby it. Go find a hill and run it up hard in 2nd or 3rd gear then decelerate on the way down. Do that 2 or three times to get it hot and the rings to seat then go home and change the oil, let it cool and check/adjust the valves. |
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Glenn 
Mr. 010
Joined: December 25, 2001
Posts: 76939
Location: Sneaking up behind you
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| Posted: Tue Aug 09, 2022 6:15 pm Post subject: Re: Break in - first 50 miles |
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Break it in like you plan to drive it.
You need the rings to seat or you'll have blowby.
_________________
Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
#BlueSquare |
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richparker
Samba Member
Joined: November 24, 2011
Posts: 6983
Location: Durango, CO
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74 Thing
Samba Member
Joined: September 02, 2004
Posts: 7393
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| Posted: Tue Aug 09, 2022 6:52 pm Post subject: Re: Break in - first 50 miles |
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| richparker wrote: |
10.5:1.
I know I read here recently that you should mix race fuel with premium pump fuel with compression that high. |
Not with that camshaft. |
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UK Luke 72
Samba Member
Joined: September 07, 2011
Posts: 2867
Location: Little Britain
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k@rlos
Samba Member
Joined: October 04, 2012
Posts: 485
Location: Suffolk, England
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| Posted: Wed Aug 10, 2022 9:18 am Post subject: Re: Break in - first 50 miles |
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| richparker wrote: |
10.5:1.
I know I read here recently that you should mix race fuel with premium pump fuel with compression that high. |
More internet bullshit, 10.5:1 isn’t that high. my 2276 is 10:1 and runs fine on 99 octane, I know plenty of people with 11:1 plus who run on pump fuel with zero issues
As for break in: do cam burn, change oil, filter & lash the valves. Drive it as you intent to in order to bed it in then after 500 miles and service it again. If it’s built properly it will be fine 💪🏻 |
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vwracerdave
Samba Member
Joined: November 11, 2004
Posts: 15308
Location: Deep in the 405
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| Posted: Wed Aug 10, 2022 9:32 am Post subject: Re: Break in - first 50 miles |
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Yea lots of internet bullshit. I won't run more than 9.5 CR with pump gas.
I want my engines to last 60K-80K and be able to make a 3 hr road trip.
FYI... Octane in the USA is measured using the (R+M)/2 method and a lower number than the RON used in Europe and other countries that is a higher number.
USA 87 = 91 RON
USA 91 = 95 RON
_________________
2017 Street Comp Champion - Thunder Valley Raceway Park - Noble, OK
2010 Sportsman ET Champion - Mid-America Dragway - Arkansas City, KS
1997 Sportsman ET Champion - Thunder Valley Raceway Park - Noble ,OK
Last edited by vwracerdave on Wed Aug 10, 2022 10:51 am; edited 1 time in total |
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UK Luke 72
Samba Member
Joined: September 07, 2011
Posts: 2867
Location: Little Britain
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Dauz
Samba Member
Joined: January 05, 2010
Posts: 1790
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| Posted: Wed Aug 10, 2022 2:30 pm Post subject: Re: Break in - first 50 miles |
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| k@rlos wrote: |
| runs fine on 99 octane |
 wtb 99 octane at the pump in SoCal |
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Glenn
Mr. 010
Joined: December 25, 2001
Posts: 76939
Location: Sneaking up behind you
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| Posted: Wed Aug 10, 2022 3:11 pm Post subject: Re: Break in - first 50 miles |
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| UK Luke 72 wrote: |
| vwracerdave wrote: |
Yea lots of internet bullshit. I won't run more than 9.5 CR with pump gas.
I want my engines to last 60K-80K and be able to make a 3 hr road trip. |
People aren't building 2276+cc with FK10s to last 60k miles. |
40K if the heads last that long.
_________________
Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
#BlueSquare |
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bedlamite
Samba Member
Joined: September 30, 2004
Posts: 182
Location: WI
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| Posted: Wed Aug 10, 2022 3:12 pm Post subject: Re: Break in - first 50 miles |
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| Dauz wrote: |
| k@rlos wrote: |
| runs fine on 99 octane |
wtb 99 octane at the pump in SoCal |
He's in England. 99 there ain't much different than 93 here. |
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k@rlos
Samba Member
Joined: October 04, 2012
Posts: 485
Location: Suffolk, England
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| Posted: Wed Aug 10, 2022 3:46 pm Post subject: Re: Break in - first 50 miles |
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| bedlamite wrote: |
| Dauz wrote: |
| k@rlos wrote: |
| runs fine on 99 octane |
wtb 99 octane at the pump in SoCal |
He's in England. 99 there ain't much different than 93 here. |
Correct 👌🏻 |
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slayer61
Samba Member
Joined: June 01, 2021
Posts: 1018
Location: CA
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| Posted: Thu Aug 11, 2022 6:59 am Post subject: Re: Break in - first 50 miles |
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FWIW there is a 76 station in Manteca, Ca. (up by me) that sells VP110 leaded out of the pump. 
_________________
| Cusser wrote: |
... Most folks are idiots when it deals with electrical !!! |
| 67rustavenger wrote: |
3/4 race cam? What's missing, one of the lobes? |
Paul
'68 Manx clone... Sears??
2276 built on AS21 case
W-125 w/ GB 1.25:1 rockers
Mahle forged pistons
CB 4340 crank
CB H beam rods
deep sump
44 HPMX
EMPI GTV 2 STG II wedge ports
CB Magna spark
1 5/8 merged collector w/ hater stinger |
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VdanielW
Samba Member
Joined: May 06, 2008
Posts: 414
Location: indio, ca
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| Posted: Fri Aug 12, 2022 10:05 am Post subject: Re: Break in - first 50 miles |
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Got a gas station here in Indio that sells sunoco 100 unleaded and vp 110 leaded at the pumps.
If you were running a stock cam at 10.5 I'd be worried about engine ping, but a web 86c he'll be just fine. |
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vwracerdave
Samba Member
Joined: November 11, 2004
Posts: 15308
Location: Deep in the 405
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| Posted: Fri Aug 12, 2022 11:44 am Post subject: Re: Break in - first 50 miles |
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| VdanielW wrote: |
| If you were running a stock cam at 10.5 I'd be worried about engine ping, but a web 86c he'll be just fine. |
At what octane will he be fine?
You can run a stock cam at 10.5 CR without any ping If you run high enough octane to support it.
Just because you do not hear any pinging that does not mean you are not doing any damage to your engine.
_________________
2017 Street Comp Champion - Thunder Valley Raceway Park - Noble, OK
2010 Sportsman ET Champion - Mid-America Dragway - Arkansas City, KS
1997 Sportsman ET Champion - Thunder Valley Raceway Park - Noble ,OK |
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VdanielW
Samba Member
Joined: May 06, 2008
Posts: 414
Location: indio, ca
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| Posted: Fri Aug 12, 2022 12:11 pm Post subject: Re: Break in - first 50 miles |
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| vwracerdave wrote: |
| VdanielW wrote: |
| If you were running a stock cam at 10.5 I'd be worried about engine ping, but a web 86c he'll be just fine. |
At what octane will he be fine?
You can run a stock cam at 10.5 CR without any ping If you run high enough octane to support it.
Just because you do not hear any pinging that does not mean you are not doing any damage to your engine. |
I run a j&s safeguard. It hears the ping you don’t. 91 octane on that size of engine at that compression will be no problem. |
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UK Luke 72
Samba Member
Joined: September 07, 2011
Posts: 2867
Location: Little Britain
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| Posted: Fri Aug 12, 2022 12:53 pm Post subject: Re: Break in - first 50 miles |
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| VdanielW wrote: |
| vwracerdave wrote: |
| VdanielW wrote: |
| If you were running a stock cam at 10.5 I'd be worried about engine ping, but a web 86c he'll be just fine. |
At what octane will he be fine?
You can run a stock cam at 10.5 CR without any ping If you run high enough octane to support it.
Just because you do not hear any pinging that does not mean you are not doing any damage to your engine. |
I run a j&s safeguard. It hears the ping you don’t. 91 octane on that size of engine at that compression will be no problem. |
Nice to see a bit of sense being spoken 
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