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cal 67
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« on: January 21, 2012, 10:34:59 pm » |
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I'm almost finished collecting my parts for my new 2110. Here's my list of parts:
82 Porsche crank
Stock 5.352 Porsche rods
90.5 AAs
Crane Cams .407 x 282 advertised 240 @ .050 (like a W100)
1 1/2 in. header
I'm looking to buy Bros Machine 40x35s with possible porting
44 IDFs (edit 36 vents)
Bosch SVDA 034
Can anyone help me with complete baseline jetting? I will be using the engine for regular around town driving.
Also, does anyone know of any rolling road tuners in So-Cal?
Thanks.
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« Last Edit: January 25, 2012, 02:05:20 am by cal 67 »
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Ohio Tom (DdK)
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« Reply #1 on: January 21, 2012, 10:40:55 pm » |
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F7 Etube
135 main
175 air
60 idle jets should be a good place to start...
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Ohio Tom Simpson. Home of the Killa' Bee.
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Bruce Tweddle
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« Reply #2 on: January 22, 2012, 04:31:59 am » |
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Here's my guess if you live near sea level:
I bet they came with F11 tubes.
Then use a 180 air, 135 main, 55 idle.
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cal 67
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« Reply #3 on: January 23, 2012, 01:07:24 am » |
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Hi. I do live at sea level. A mile from the beach actually. I don't understand. I did a search for jetting for a 2110 and there were so many different answers. Are there a lot of different combos that can work if you change the emulsion tube sizes?
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maui
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« Reply #4 on: January 25, 2012, 01:11:49 am » |
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both are good but I think the 60s is better to start.
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Kehau
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cal 67
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« Reply #5 on: January 25, 2012, 02:01:17 am » |
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Ok so I just looked at the jets today. I do have F11 tubes! I didn't look at the air corrector jet size (hopefully they're 180s). The mains are 180 and the idles are 55. I hear with the Bosch 034 I may be able to jet even lower. Can anyone confirm this?
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Bruce Tweddle
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« Reply #6 on: January 25, 2012, 02:36:06 am » |
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The mains are 180 Find someone who races with IDAs and give these jets to him. Use the other jets you have to establish a baseline. Is your single vacuum distributor all stock, or has it had it's curve "warmed over"? |
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Meandean
Newbie
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Posts: 69
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« Reply #7 on: January 26, 2012, 12:13:32 pm » |
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It sounds like your IDF-44's came with single carb jetting - required to be richer for a single mount carb.
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cal 67
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« Reply #8 on: January 26, 2012, 11:48:52 pm » |
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Funny, I was thinking about that today. Like, what would need that big of a main. I found out the air corrector. It's a 200. I guess it's possible now that the other 44 may have different jets in it.
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Damurz
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Posts: 6
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« Reply #9 on: January 27, 2012, 12:31:24 am » |
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I have just tuned two cars with 44's. Here is the jetting we wound up with using a wideband. 1835, w110, stock valved heavily ported heads...52, 145, 190, f11. The second one ..2017 FK10, 42x37 heads, 50, 155,200 airs f11's. My old 2276.... w120, 40x35, 55,145, 200's. All cars at sea level. 55, 150, 200 would be my baseline......
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62 vert
68 Baja
Deeeeeep South Louisiana
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arnolds64
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« Reply #10 on: January 27, 2012, 05:06:29 pm » |
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I'd stick with 200airs. The 180's will run richer at 3000+ or at highway speeds. The cam you have is very mild 240@.050 so I think that would be to much fuel. The 44's need to have smaller vents too -32's. The reason I am sure these guys are saying 180's because of the 36 vents putting a bandaid on them to use of them. But the problem I think you will have with that cam and the 36 vents is it will be pretty soggy down low too. The crank may cover this up some though. If you must go with that cam I would do this - 32 Vents, 50 idles, 135 mains, 200 Airs. F11 tubes too.
I think your combo will be pretty underwhelming. With the carbs and heads you are using you will be wasting them with that puny cam. I am running a much Larger Engle 130 right now with my 2017. My carb set up - 44's with 36 Vents, 55idles, 155 mains, 200 airs. It is very linear with good torque at low revs and just rips above 4000 all the way to just under 7000 with power. Yours will die off at 4500 - 5000 with that cam - Tractor. I was told by tons on the samba it would be a bear to drive in traffic yada yada. Wrong! I also consulted with Jim Ratto and Shawn Proffit and they both said the 130 would work if I set up the carbs as mentioned. I had a 110 Engle in it before with 40 IDF's 34 Vents, 50 idles, 135 mains, 220 Airs. Had good torque low and ran strong to 5500. The only difference now with the Engle 130 is that it has a little less on the low end but blows past the 110's 5500 end point and tons more power up top. Also it has a very light lope at idle but not crazy lopey like most people told me it would with a short power band. Very linear power all over and Fun!! Don't waste that large engines potential on that wimpy cam.
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64 Type 1, 2017, 44 IDFs Pretty Fast!
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cal 67
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« Reply #11 on: January 28, 2012, 12:09:47 am » |
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Do you think the powerband would be higher with 1.25 rockers? I have a cast crank so I can't have my powerband in the sevens. 6 thou would be fine though.
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