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GOTTA LOVE CARBS................................. #1603465
04/05/14 03:34 PM 04/05/14 03:34 PM
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Thumperdart Offline OP
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I don`t how many of you have mapped out your metering blocks but it`s a blast especially playing with(and losing)the tiny drill bits. Last night I tore into my hp-1050 to get a better understanding as to why I need all of the jet and come to find out the cross wells that feed the boosters were smaller than I thaught as in .144 which the pros say to drill to .157-.160 so mine are at .159 now. Also the HP series moved the IFR`s up top instead of in the bottom where they are submerged so that`s next on the list when Pettis orders my brass blanks so I can drill and tap and RE-start tuning again............anyone else mess w/this stuff and what were your results. Off for my initial tests..............

Last edited by Thumperdart; 04/05/14 09:10 PM.
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: GOTTA LOVE CARBS................................. [Re: Thumperdart] #1603466
04/05/14 05:55 PM 04/05/14 05:55 PM
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That c@$t worked cos now I`m fat at 11.8 at wot so bet. that and the hi-flow 4-window p/v,we`re on to something.......... Time to start jetting down and getting to a more reasonable jet spread.

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: GOTTA LOVE CARBS................................. [Re: Thumperdart] #1603467
04/05/14 05:59 PM 04/05/14 05:59 PM
Joined: Sep 2012
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Janesville, WI
SpareParts Offline
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Keep at it thumper! Sounds like your on to something
Re: GOTTA LOVE CARBS................................. [Re: SpareParts] #1603468
04/05/14 06:03 PM 04/05/14 06:03 PM
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I don`t take credit 4 it I just do what the bad dogs do and apparently they know what they`re talkin about..........

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: GOTTA LOVE CARBS................................. [Re: Thumperdart] #1603469
04/05/14 06:30 PM 04/05/14 06:30 PM
Joined: Jan 2003
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Balt. Md
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I will be setting mine up some as it runs great but I want to lean my part throttle cruise a tad. But I have an older 850 with only main jets as it has no other jets anywhere so looks like I may be drilling some air bleeds. I am happy with my full throttle jetting so I may work my idle/transfer system a tad. Ron

Last edited by 383man; 04/05/14 06:32 PM.
Re: GOTTA LOVE CARBS................................. [Re: 383man] #1603470
04/05/14 06:39 PM 04/05/14 06:39 PM
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You can also install a smaller transfer slot restriction in the body which will help. This stuff works cos now I`m at 12.2 wot so I`m droppin the primaries one number and gonna leave it for now..........

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: GOTTA LOVE CARBS................................. [Re: Thumperdart] #1603471
04/05/14 07:16 PM 04/05/14 07:16 PM
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NOW we`re talkin..............Holy smokes this puppy`s finally coming around and to think I went 9.79 off the trailer w/a jacked carb, angled shocks and at 3200 lbs. It`s track time baby............Special thankxxx to ajcasini on this board cos he too was nuts on by stating w/ a .09 pvcr I need about a 14 jet spread and that`s exactly where I`m at..............82-96 and mid 12.`s at wot...........Party time and ass whoopin time on the rematch w/the nova..........

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: GOTTA LOVE CARBS................................. [Re: Thumperdart] #1603472
04/05/14 07:25 PM 04/05/14 07:25 PM
Joined: Jun 2003
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Charleston
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sixpackgut Offline
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You can achieve the same results in many different ways with a carb. It doesnt really mean its jacked up. Someone might add jet to the secondaries, while i may increase the pvcr and get the exact same results as an example.

But i applaud what your doing and im sure you will be a cab wiz in no time with your efforts

Those are things i did with my six pack over the years, and im proud to say i had a 9 second 3700 lb car with that kind of mess sitting on my intake

Gen 3 power 6.22@110, 9.85@135
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performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
Re: GOTTA LOVE CARBS................................. [Re: sixpackgut] #1603473
04/05/14 07:39 PM 04/05/14 07:39 PM
Joined: Jul 2010
Posts: 1,491
Oologah, Oklahoma
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And now, Thumper, imagine trying to do all that without an O2 sensor...Is that not the best tool you've ever owned??

If you can't handle the truth, you're living a lie.......
Re: GOTTA LOVE CARBS................................. [Re: Big Squeeze] #1603474
04/05/14 07:49 PM 04/05/14 07:49 PM
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Quote:

And now, Thumper, imagine trying to do all that without an O2 sensor...Is that not the best tool you've ever owned??



Couldn`t w/out one............... And I agree 6-pac you can achieve the same results from different angles but needing 100`s in the rear was a big flag and now we know why.

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: GOTTA LOVE CARBS................................. [Re: Thumperdart] #1603475
04/05/14 07:54 PM 04/05/14 07:54 PM
Joined: Jun 2003
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Charleston
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sixpackgut Offline
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Quote:

Quote:

And now, Thumper, imagine trying to do all that without an O2 sensor...Is that not the best tool you've ever owned??



Couldn`t w/out one............... And I agree 6-pac you can achieve the same results from different angles but needing 100`s in the rear was a big flag and now we know why.



Oh crap, i didnt know that. Your carb was jacked up

Gen 3 power 6.22@110, 9.85@135
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Re: GOTTA LOVE CARBS................................. [Re: sixpackgut] #1603476
04/05/14 08:15 PM 04/05/14 08:15 PM
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Thumperdart Offline OP
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Quote:

Quote:

Quote:

And now, Thumper, imagine trying to do all that without an O2 sensor...Is that not the best tool you've ever owned??



Couldn`t w/out one............... And I agree 6-pac you can achieve the same results from different angles but needing 100`s in the rear was a big flag and now we know why.



Oh crap, i didnt know that. Your carb was jacked up



The biggest problem w/it 6-pac was the angle channels were way to small for the booster channels which were .160 and that`s a wot restriction big time at my power level from what the smart folks say............

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: GOTTA LOVE CARBS................................. [Re: Thumperdart] #1603477
04/05/14 08:17 PM 04/05/14 08:17 PM
Joined: Jun 2003
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Charleston
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sixpackgut Offline
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Wonder what mine are on my new carb

Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram

performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
Re: GOTTA LOVE CARBS................................. [Re: Thumperdart] #1603478
04/05/14 08:29 PM 04/05/14 08:29 PM
Joined: Mar 2007
Posts: 3,300
Northern Indiana
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I usually find some pretty decent torque gains by reworking the emulsion circuits. It has picked up as much as 3 tenths on one car ,with most of the gains in the middle part of the track.
I have tried to tell people for a while now that just jetting for best mph isn't the end of tuning. You are usually rich or lean elsewhere on the track.
Keith

www.dunnuckracing.com
Re: GOTTA LOVE CARBS................................. [Re: sixpackgut] #1603479
04/05/14 08:47 PM 04/05/14 08:47 PM
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Quote:

Wonder what mine are on my new carb



Time to check em................ And I agree about the emulsion circuit cos in my mind, the jets are for over all max flow at wot so I tailor the curve w/bleeds............

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: GOTTA LOVE CARBS................................. [Re: Thumperdart] #1603480
04/05/14 09:48 PM 04/05/14 09:48 PM
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Looks like your getting it all figured out.

Re: GOTTA LOVE CARBS................................. [Re: ajcasini] #1603481
04/05/14 10:02 PM 04/05/14 10:02 PM
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Quote:

Looks like your getting it all figured out.



Thank you sir for your help also..........

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: GOTTA LOVE CARBS................................. [Re: Thumperdart] #1603482
04/05/14 10:27 PM 04/05/14 10:27 PM
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Your welcome. Any other questions feel free to ask.
Re: GOTTA LOVE CARBS................................. [Re: ajcasini] #1603483
04/05/14 11:51 PM 04/05/14 11:51 PM
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Thankxxx.............here`s one. My ifr`s are on top of the block and have been reading that it`s more consistent w/em relocated to the bottom submerged in fuel so what`s your take.

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: GOTTA LOVE CARBS................................. [Re: Thumperdart] #1603484
04/05/14 11:54 PM 04/05/14 11:54 PM
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I move them to the bottom. Its much more consistent metering fuel than air.
Re: GOTTA LOVE CARBS................................. [Re: ajcasini] #1603485
04/06/14 12:12 AM 04/06/14 12:12 AM
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That`s what I figured...............thankxxx again.

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: GOTTA LOVE CARBS................................. [Re: ajcasini] #1603486
04/06/14 12:44 PM 04/06/14 12:44 PM
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Quote:

I move them to the bottom. Its much more consistent metering fuel than air.



What`s a good starting point size wise............I think mine are about .039 iirc and I ordered threaded blanks to fine tune it...........Thankxxx.....

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: GOTTA LOVE CARBS................................. [Re: Thumperdart] #1603487
04/06/14 02:39 PM 04/06/14 02:39 PM
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Val-haul-ass... eventually
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Val-haul-ass... eventually
1. Yes, I've been getting way into the details of carb tuning and suspect we've been reading some of the same stuff. It's all part of my recent admission of being a Carb-O-Holic.

2. When I actually have my junk running again, I intend to put in some "real world" testing and look forward to having a wide-band O2 for the first time.

3. If your IFRs were .039" in the upper location, IMO start out w/ .037" after lowering them. I'm interested in hearing your thoughts as to what improvements you find from this mod, as I've been looking into doing the same thing.
Re: GOTTA LOVE CARBS................................. [Re: BradH] #1603488
04/06/14 02:50 PM 04/06/14 02:50 PM
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I plan on lowering them when I get the blanks and will let you guys know for sure but it`s night and day difference now w/the cross wells drilled out to .159 and the four hole p/v............There`s some great reading at Motorsportsvillage.com where they discuss the "theories" behind why submerged is better than mixed from above.

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: GOTTA LOVE CARBS................................. [Re: Thumperdart] #1603489
04/06/14 03:08 PM 04/06/14 03:08 PM
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Val-haul-ass... eventually
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Val-haul-ass... eventually
If you're not familiar w/ this site, check it out, too. You'll see some familiar "faces" from MotorsportsVillage and Moparts, too:

http://racingfuelsystems.myfunforum.org/index.php
Re: GOTTA LOVE CARBS................................. [Re: BradH] #1603490
04/06/14 03:39 PM 04/06/14 03:39 PM
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Been there also and JMarkaudio is one smart dude 4 sure..........

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: GOTTA LOVE CARBS................................. [Re: Thumperdart] #1603491
04/06/14 03:44 PM 04/06/14 03:44 PM
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I would start with .037 a wel that way you can increase if necessary.
Re: GOTTA LOVE CARBS................................. [Re: ajcasini] #1603492
04/06/14 05:11 PM 04/06/14 05:11 PM
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Quote:

I would start with .037 a wel that way you can increase if necessary.



I`ll try what you guys suggest.............

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: GOTTA LOVE CARBS................................. [Re: Thumperdart] #1603493
04/06/14 05:28 PM 04/06/14 05:28 PM
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What idle air bleed you running
Re: GOTTA LOVE CARBS................................. [Re: ajcasini] #1603494
04/06/14 06:45 PM 04/06/14 06:45 PM
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.071 idle and .028 mab.........

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: GOTTA LOVE CARBS................................. [Re: ajcasini] #1603495
04/14/14 01:14 PM 04/14/14 01:14 PM
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Well, I finally did the mods that Aj and others had suggested and it`s a night and day difference. I lowered the idle jets into the bottom of the emulsion wells and plugged the middle emulsion hole and now this puppy idles nice and crisp around 12.8-13.4, cruises bet. 13.4-14.0 and wot is bet. 12.2-12.4 rock solid. Before the mixture screws could be turned over 1/2 turn and not have a big affect but now I went a 1/4 turn in and it went dead lean. I can`t thank Aj and others enuff and someday I just might get real good at this stuff............

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: GOTTA LOVE CARBS................................. [Re: Thumperdart] #1603496
04/14/14 02:00 PM 04/14/14 02:00 PM
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Kalispell Mt.
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HotRodDave Offline
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Any pics of what you guys are talking of?

I am not causing global warming, I am just trying to hold off a impending Ice Age!
Re: GOTTA LOVE CARBS................................. [Re: HotRodDave] #1603497
04/14/14 02:24 PM 04/14/14 02:24 PM
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Quote:

Any pics of what you guys are talking of?



I didn`t take any but if you go to motorsportsvillage.com you`ll see what I`m talkig about.

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: GOTTA LOVE CARBS................................. [Re: Thumperdart] #1603498
04/14/14 05:02 PM 04/14/14 05:02 PM
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Canada
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RobR Offline
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I've been doing it for quite a few years now..
I have 5 sets of blocks that I'll put different curves in and just switch them out when I tune..
You can read all you want but the only way to find the truth is to do it...
Guys who know what to do make their living doing this and will never tell the whole truth..
And what is out on the net just scratches the surface..
Re: GOTTA LOVE CARBS................................. [Re: RobR] #1603499
04/14/14 05:17 PM 04/14/14 05:17 PM
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I hear ya but so far 90% is working as stated and the rest is up to me............

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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