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jfats808
Samba Member
Joined: December 10, 2007
Posts: 5022
Location: oahu hawaii
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 Posted: Fri Oct 01, 2010 10:31 pm Post subject: |
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I think the most important thing to ask atm is... how does it run now. 1mm isnt much difference from the 37mm vents synonomous with the stock 48 weber carbs. I like the 55 idles, i think they are pretty close thinking about your setup. 200 airs are fine for under 1000 altitude although you can go down to 190's. 140's are too small like many of the more seasoned Sambaists have mentioned. I agree as well. Before you do any ordering, i suggest a detailed operation explaination from idle to wot , noticing the progression changes from idle-2500 and up. What number was your sparkplug at currently according to the scale? Every performance motor is different, you will need to start @ 7 degree btdc and work your way up. Your temperture at full operating temperature will be your guide. For instance im running a 2276 , 010, 44x38 wedgeports, NGK DP8EA-9's w/ 70 F10, 175, 200's w/ 40 vents ( i just changed the plugs one heat range colder today and rejetted down my idles. It likes a 9/10 btdc timing. Took it for a spin and the plugs look like between 14 and 15). It sounds like a lot of work jetting and tuning but its not. Just be systomatic and make a log. Thats what i do now. However, i suspect either the 150 or 155's will be your main change due to the size of your vents and air jets. Wont know till you create your baseline of its current operation performance.
_________________
2276 IDA's 86C 11-1 DD !
2017 48 Trijet DRLA's W125
| Rockstar Suzuki wrote: |
You might as well put 10 year build in your bullshit sig, as it will NEVER run. Also your a dick |
You can always learn something new, even from a fool.
Check your oil levels routinely! |
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mharney
Samba Member
Joined: June 01, 2002
Posts: 8353
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| Posted: Fri Oct 01, 2010 10:38 pm Post subject: |
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| You keep comparing 48 IDAs, to 44 IDFs, and there is no sense in that. 48 IDFs for instance come with 40mm venturis. The jetting and architecture are different. |
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damicotile
Samba Member
Joined: September 16, 2004
Posts: 1069
Location: WOODLAND CA.
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| Posted: Sat Oct 02, 2010 12:34 am Post subject: |
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Ok, now I am confused. I have had my timing at 28 to 32 deg @ 3000 to 3500 rpms.
I tried this at different degrees between that range.
Are you saying that I should have the timing at 7º BTDC @ idle or at 3000 to 3500 rpms?
I also have a Bosch 010
My plugs look close to 20 on that chart
_________________
'73 SB
82x94
W-120 w/ CB light weight lifters
Silicon bronze sleeves
Scat 1.25:1
CB H-Beams
Straight cuts
42x37 Steve Tims
44 IDF's
9.2:1
A-1 Sidewinder coated
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Sigurd
Samba Member
Joined: April 18, 2006
Posts: 2639
Location: Rockford, IL
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| Posted: Sat Oct 02, 2010 4:56 am Post subject: |
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| 7 degrees BTDC is at idle. |
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jfats808
Samba Member
Joined: December 10, 2007
Posts: 5022
Location: oahu hawaii
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| Posted: Sat Oct 02, 2010 11:28 am Post subject: |
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Your plugs look fine in that case. You have room to richen imo. But I can't suggest anything without knowing your current performance. Start that logbook yet?
_________________
2276 IDA's 86C 11-1 DD !
2017 48 Trijet DRLA's W125
| Rockstar Suzuki wrote: |
You might as well put 10 year build in your bullshit sig, as it will NEVER run. Also your a dick |
You can always learn something new, even from a fool.
Check your oil levels routinely! |
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jbreddawg
Samba Member
Joined: August 31, 2006
Posts: 1242
Location: Raleigh NC
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| Posted: Sat Oct 02, 2010 3:43 pm Post subject: |
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I can't attest to how it runs yet since I haven't run it lol But when I was in my research and asking questions phase I got advice almost exactly what your running except to use 150 mains.
My engine almost sounds like a carbon copy of yours so please let me know how it runs ? Mines going in a light buggy ,so if it scoots in a beetle it should be a blast in a buggy lol
AS21 case with all stroker machine work and full flow
DRD 82 mm Forged Crank
Kennedy Stage 1 PP and Dakin clutch
94 p&s set (mahle) honed with new rings
CB 044 heads 42x37 dual springs with very nice port/polish
Engle W120 cam
Scat H-Beam rods vw journal 5.5 with new arp 2000 bolts
Scat solid rocker shafts /scat 1.25 rockers
Scat chromoly gland nut
OG Valve covers powdercoated and an6 bungs welded in
Manton chromoly pushrods
SS pushrod tubes
New welded and balanced fan
New old stock german lifters ! Thanks samba !!
Scat steel on steel straight cut cam gears
CB pulley " berg equalizer clone"
1 1/2 quart sump
Berg 26mm oil pump ,berg cast iron cover
Berg linkage
Italian 44 webers , completely rebuilt
36 vents
200 airs
55 idles
150 mains
CB oil breather/filler
Bosch 010 distributor
1 5/8 Tri-Mill sidewinder header and Hayabusa Muffler
Brazil short shroud with Fuel injected ring added.
All the reciprocating assembly was fully balanced and the pistons weight matched.
9.2 compression with a .064 deck height accomplished with .060 copper head gaskets and no cylinder shims.
_________________
The wheel may be turning but the hamster's dead !
| fred69vert wrote: |
| Enough torque to pull the panties off a nun. |
| RCros wrote: |
| Sometimes I have more balls than talent. |
Last edited by jbreddawg on Sat Oct 02, 2010 3:55 pm; edited 1 time in total |
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mharney
Samba Member
Joined: June 01, 2002
Posts: 8353
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| Posted: Sat Oct 02, 2010 3:44 pm Post subject: |
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"All the reciprocating assembly was fully balanced as were pistons."
So what are your pistons going to do? |
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jbreddawg
Samba Member
Joined: August 31, 2006
Posts: 1242
Location: Raleigh NC
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| Posted: Sat Oct 02, 2010 3:51 pm Post subject: |
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| mharney wrote: |
"All the reciprocating assembly was fully balanced as were pistons."
So what are your pistons going to do? |
The pistons were weight matched perfectly to each other .
_________________
The wheel may be turning but the hamster's dead !
| fred69vert wrote: |
| Enough torque to pull the panties off a nun. |
| RCros wrote: |
| Sometimes I have more balls than talent. |
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mharney
Samba Member
Joined: June 01, 2002
Posts: 8353
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| Posted: Sat Oct 02, 2010 4:21 pm Post subject: |
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Perfectly... that's impressive. Tony Schumacher wants YOU! 
Just ribbin ya. |
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jbreddawg
Samba Member
Joined: August 31, 2006
Posts: 1242
Location: Raleigh NC
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| Posted: Sat Oct 02, 2010 4:26 pm Post subject: |
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| mharney wrote: |
Perfectly... that's impressive. Tony Schumacher wants YOU!
Just ribbin ya. |
No prob, I've got tough skin 
I did check them when I got them back and they are dead perfect to each other on my digital gram scale .
_________________
The wheel may be turning but the hamster's dead !
| fred69vert wrote: |
| Enough torque to pull the panties off a nun. |
| RCros wrote: |
| Sometimes I have more balls than talent. |
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damicotile
Samba Member
Joined: September 16, 2004
Posts: 1069
Location: WOODLAND CA.
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| Posted: Sat Oct 02, 2010 5:38 pm Post subject: |
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I checked out my degree wheel and it was spot on.
I change the mains to 150's and re adjusted the A/F and set the timing at 7 btdc and it fixed the pinging plus it runs smoother at freeway speeds and gets there quicker. Smoother shifting from 1st to 2nd.
I had it way too advanced. It was @ 15º @ idle. I was setting the timing at 3000 rpm's and I think thats where I went wrong.
All I need to do is get some nice ported heads and dump these Bug Pack's for some Steve Tim's or Brothers 42x37's and I'll be set.
Now if only I could find some lash caps that will stay on I'll be able to put my 1.25 ratio's back on. Bergs is out of them for another month.
They never have anything I have tried to order in stock.
_________________
'73 SB
82x94
W-120 w/ CB light weight lifters
Silicon bronze sleeves
Scat 1.25:1
CB H-Beams
Straight cuts
42x37 Steve Tims
44 IDF's
9.2:1
A-1 Sidewinder coated
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jfats808
Samba Member
Joined: December 10, 2007
Posts: 5022
Location: oahu hawaii
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| Posted: Sat Oct 02, 2010 5:43 pm Post subject: |
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Glad you got it running good. I use the Scat or Bugpack chromoly lashcaps and they work great.
_________________
2276 IDA's 86C 11-1 DD !
2017 48 Trijet DRLA's W125
| Rockstar Suzuki wrote: |
You might as well put 10 year build in your bullshit sig, as it will NEVER run. Also your a dick |
You can always learn something new, even from a fool.
Check your oil levels routinely! |
|
| Back to top |
|
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hardaisgood
Samba Member
Joined: October 01, 2010
Posts: 17
Location: Eugene, OR
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| Posted: Sat Oct 02, 2010 6:45 pm Post subject: |
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Your plugs are white, due to the WONDERFUL Ethanol gas they have now!
I only run clear gas in my VW and my quads. |
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rs58rag
Samba Member
Joined: August 22, 2010
Posts: 419
Location: riverside,ca
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| Posted: Sat Oct 02, 2010 9:14 pm Post subject: |
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| good job.. i run 2175 9:1 with 44 idfs ,160 gas, 200 airs, 60 idles, 36 vents and it pulls great. 900' alt. |
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