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slayer61 finally has a Dune buggy!
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slayer61
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PostPosted: Tue Aug 01, 2023 6:38 am    Post subject: Re: slayer61 finally has a Dune buggy! Reply with quote

^^ Well, thank you Sir. I appreciate your input. Very Happy ^^
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Cusser wrote:

... Most folks are idiots when it deals with electrical !!!


67rustavenger wrote:

3/4 race cam? What's missing, one of the lobes? Shocked


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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slayer61
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PostPosted: Thu Aug 03, 2023 6:43 am    Post subject: Re: slayer61 finally has a Dune buggy! Reply with quote

So, last night's jetting endevor didn't quite go as planned... Embarassed

I stepped the idles down from 55s to 50. I set the "lean best idle" and the right side was a little... different. No worries Rolling Eyes

Obviously it ran, but it went from "pig rich" to borderline too lean, popping & missing at anything much over idle... WTF?

I got home & went to put the 55s back in and found I'd damaged, err cut, one of the orings!! DAMMIT!! Evil or Very Mad

Back to the drawing board. "hello? FLAPS? Got any o-rings for Weber type carbs?" Rolling Eyes
_________________
Cusser wrote:

... Most folks are idiots when it deals with electrical !!!


67rustavenger wrote:

3/4 race cam? What's missing, one of the lobes? Shocked


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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Kafer_Mike
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PostPosted: Thu Aug 03, 2023 8:56 am    Post subject: Re: slayer61 finally has a Dune buggy! Reply with quote

Weber part number for the idle jet o-ring is 41565.002. You may be able to locate the dimensions and/or cross-reference. If I had one, I'd just mail it to you.
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slayer61
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PostPosted: Thu Aug 03, 2023 9:51 am    Post subject: Re: slayer61 finally has a Dune buggy! Reply with quote

Kafer_Mike wrote:
Weber part number for the idle jet o-ring is 41565.002. You may be able to locate the dimensions and/or cross-reference. If I had one, I'd just mail it to you.


Thanks for the kind offer Mike. I work at a facility that has a cabinet full of viton and buna orings. I have a "dime bag" full of assorted sizes for tonight.
_________________
Cusser wrote:

... Most folks are idiots when it deals with electrical !!!


67rustavenger wrote:

3/4 race cam? What's missing, one of the lobes? Shocked


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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slayer61
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PostPosted: Wed Aug 09, 2023 7:06 am    Post subject: Re: slayer61 finally has a Dune buggy! Reply with quote

Small update:
I spent a small fortune on an assortment of jets, all smaller than I already had in the carbs. Special thanks to CB Performance & that auction site.

I started out with 55/160/200/F11 and 36 vents. I want to tell you that it was straight forward and simple. I also want to tell you that I wrote down each & every change, so I know for sure what I have Rolling Eyes Sadly, I just kept changing stuff 'till I got a satisfactory result. Embarassed

I ended up with 55/155/210/F11 with 36 vents.


I found that my 3 wire (narrow band) a/f gauge might not have been 100% accurate. In the end, I was just looking for what the car wanted.

Be safe.

ETA: I might still try the F7 tubes, just for kicks
_________________
Cusser wrote:

... Most folks are idiots when it deals with electrical !!!


67rustavenger wrote:

3/4 race cam? What's missing, one of the lobes? Shocked


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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vwracerdave
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PostPosted: Wed Aug 09, 2023 11:04 am    Post subject: Re: slayer61 finally has a Dune buggy! Reply with quote

I know ever carb jetting is different and depends on geographic location and elevation.

I'm at around 900' elevation. My 2165cc with 44 IDF's has 36 vent, 52.5i, 150m, 200a, F11. I always jet for 12.7 A/F at wide open throttle and never worry about anything else.

A big time VW guru told me to use f11 tubes for duals up to 40mm venturies and F2's for 40mm & larger venturies. Use F7 tubes for single carb set-ups.
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1997 Sportsman ET Champion - Thunder Valley Raceway Park - Noble ,OK
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slayer61
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PostPosted: Wed Aug 09, 2023 11:27 am    Post subject: Re: slayer61 finally has a Dune buggy! Reply with quote

Thanks Dave.
That's the first time I've heard that about the tubes. Interesting.
The info that I gleened from John's (aircooled.net) posts was
Quote:
E tubes F7 richens the mixture up at the bottom of the RPM range and under acceleration, while the F11 leans the mixture out on the top end a little bit

_________________
Cusser wrote:

... Most folks are idiots when it deals with electrical !!!


67rustavenger wrote:

3/4 race cam? What's missing, one of the lobes? Shocked


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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slayer61
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PostPosted: Mon Aug 28, 2023 1:03 pm    Post subject: Re: slayer61 finally has a Dune buggy! Reply with quote

So! What might be the FINAL Bug-O Rama is coming to Sacramento Raceway this weekend. Shocked

I can't let it go without giving it a go. For the first time since the '70s I will be on the drag strip! Cool







Summit just needs to get my harness delivered before Saturday morning! Embarassed

See y'all there. Be safe!
_________________
Cusser wrote:

... Most folks are idiots when it deals with electrical !!!


67rustavenger wrote:

3/4 race cam? What's missing, one of the lobes? Shocked


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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slayer61
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PostPosted: Mon Aug 28, 2023 2:06 pm    Post subject: Re: slayer61 finally has a Dune buggy! Reply with quote

Crap,
I forgot to mention that my Mrs. took a Saturday day trip to Columbia state park https://www.parks.ca.gov/?page_id=552 (old gold mining town in the foothills of California) and had a great time. It's been years since we went last, but it is still a worthy trip for anyone interested in that era of history.

Required "scenic overlook" shot


Image may have been reduced in size. Click image to view fullscreen.



Image may have been reduced in size. Click image to view fullscreen.

_________________
Cusser wrote:

... Most folks are idiots when it deals with electrical !!!


67rustavenger wrote:

3/4 race cam? What's missing, one of the lobes? Shocked


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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torchwerks
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PostPosted: Tue Aug 29, 2023 7:33 am    Post subject: Re: slayer61 finally has a Dune buggy! Reply with quote

We used to go to Columbia when I was a kid. We dropped in last November. First time I had been back in over 40 years, and it was very much the same.

My brother volunteers at Railtown 1897 in Jamestown.
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slayer61
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PostPosted: Wed Aug 30, 2023 7:06 am    Post subject: Re: slayer61 finally has a Dune buggy! Reply with quote

8/30/23 Update:
I ordered my safety gear from Summit on Monday morning. Tuesday afternoon UPS delivered everything but the shoulder straps. Take THAT jeff bezos! Applause

Now, as long as the shoulder straps come in, all is good!
_________________
Cusser wrote:

... Most folks are idiots when it deals with electrical !!!


67rustavenger wrote:

3/4 race cam? What's missing, one of the lobes? Shocked


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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vwracerdave
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PostPosted: Wed Aug 30, 2023 10:20 am    Post subject: Re: slayer61 finally has a Dune buggy! Reply with quote

Just for fun, any guesses on what it will run before you make a pass.
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slayer61
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PostPosted: Wed Aug 30, 2023 11:24 am    Post subject: Re: slayer61 finally has a Dune buggy! Reply with quote

I hoping for a low 13. We'll see.
_________________
Cusser wrote:

... Most folks are idiots when it deals with electrical !!!


67rustavenger wrote:

3/4 race cam? What's missing, one of the lobes? Shocked


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
Back to top
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slayer61
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PostPosted: Fri Sep 01, 2023 6:55 am    Post subject: Re: slayer61 finally has a Dune buggy! Reply with quote

Sounds like I'm pulling the plug on racing the last Bug-O-Rama. Embarassed

My shoulder straps won't be here untill after the event... on Wednesday FFS! Mad

Maybe I see you in the car show area.
_________________
Cusser wrote:

... Most folks are idiots when it deals with electrical !!!


67rustavenger wrote:

3/4 race cam? What's missing, one of the lobes? Shocked


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
Back to top
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67rustavenger Premium Member
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PostPosted: Fri Sep 01, 2023 8:10 am    Post subject: Re: slayer61 finally has a Dune buggy! Reply with quote

slayer61 wrote:
Sounds like I'm pulling the plug on racing the last Bug-O-Rama. Embarassed

My shoulder straps won't be here untill after the event... on Wednesday FFS! Mad

Maybe I see you in the car show area.

Well bummer! I was hoping for ya to have a couple good passes.

Have fun at the show, just the same.
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y2kbaja
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PostPosted: Tue Sep 05, 2023 1:58 pm    Post subject: Re: slayer61 finally has a Dune buggy! Reply with quote

Wished I would have seen this before the event. You could have used the Simpson belts from my class 9 car. We didn't race this weekend.
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slayer61
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PostPosted: Wed Sep 06, 2023 6:48 am    Post subject: Re: slayer61 finally has a Dune buggy! Reply with quote

y2kbaja wrote:
Wished I would have seen this before the event. You could have used the Simpson belts from my class 9 car. We didn't race this weekend.


Thanks very much for the kind offer! Very Happy
But I had bigger problems than the seat belts, so it turns out... Embarassed

If I was racing a sedan, and went slower than 13 seconds, I could do it in shorts & flip flops and not even a helmet, as long as I didn't have a sun roof. Being a buggy (at any speed) I would have needed a full NHRA spec roll cage AND the seat belts, drivers suit, boots and gloves, and, yes, a helmet.




dammit Sad
_________________
Cusser wrote:

... Most folks are idiots when it deals with electrical !!!


67rustavenger wrote:

3/4 race cam? What's missing, one of the lobes? Shocked


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
Back to top
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vwracerdave
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PostPosted: Wed Sep 06, 2023 9:21 am    Post subject: Re: slayer61 finally has a Dune buggy! Reply with quote

Just to clarify the NHRA rules, NHRA does not allow shorts and flip flops in any class no matter how slow the car is. All drivers are required to wear shirts with sleeves, long pants, and full shoes that cover the entire foot. Any car running faster than 14.00 is required to wear a helmet.

Yes, all dune buggy and sand rails regardless of how slow they are, the minimum requirement is at least a roll bar, 5 point racing harness, 1 layer fire jacket, arm restraints, gloves, and a full faced helmet. When you run faster than 11.50 the safety requirements gets more advanced.
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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 Sep 06, 2023 10:41 am; edited 1 time in total
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y2kbaja
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PostPosted: Wed Sep 06, 2023 9:59 am    Post subject: Re: slayer61 finally has a Dune buggy! Reply with quote

I never understood why anyone on a race track, even a drag strip, going any speed would not wear a helmet. Cracked me up last year Bugorama the bugs running the strip with tshirt and no helmet.
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vwracerdave
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PostPosted: Wed Sep 06, 2023 10:36 am    Post subject: Re: slayer61 finally has a Dune buggy! Reply with quote

y2kbaja wrote:
I never understood why anyone on a race track, even a drag strip, going any speed would not wear a helmet. Cracked me up last year Bugorama the bugs running the strip with tshirt and no helmet.


You are not required to wear a helmet when driving your car on any public road. Some slower cars can legally run faster on a public road then in a 1/4 or 1/8 mile drag race at the track. You probably have a much higher chance of crashing on a public road than at a drag strip.

My Karmann Ghia with a 2165cc only runs 72 MPH in the 1/8th. There are turnpikes around here where the speed limit is 80 MPH.
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2010 Sportsman ET Champion - Mid-America Dragway - Arkansas City, KS
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