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Thread: Custom Carb manifold.

  1. #76

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    Re: Custom Carb manifold.

    Quote Originally Posted by markmdz89hatch View Post
    Baby D, please post pics of this beast. I'm real curious to see just how it all came together. Also please run another pull and post up the et. Do you have the sheet from your 14 pull when you were fi? I just want to see the 1/8 time, final, and top speed.

    Any dyno time in your planned future?
    Ditto on the time slip. Unless the car is totally gutted I'm having a hard time believing this was with a stock engine. And what was the actual time? There is a big difference between 14.0s and 14.9s

    C|



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    Re: Custom Carb manifold.

    oh no. Baby D woke the cygnus!

    Baby D --> If you need someone to host up the pics so they can be posted on this thread, just PM me and I'll respond with my e-mail address so you can e-mail them to me. I'll post them up as soon as you send them.

    As Guy (roodoo) said, you get credit for being the first (as far as we know) to do this holley on a 3G. Now that credit has been given, let's see the pics of this damn thing.
    -Mark D.


  3. #78

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    Re: Custom Carb manifold.

    Quote Originally Posted by markmdz89hatch View Post
    oh no. Baby D woke the cygnus!

    Baby D --> If you need someone to host up the pics so they can be posted on this thread, just PM me and I'll respond with my e-mail address so you can e-mail them to me. I'll post them up as soon as you send them.

    As Guy (roodoo) said, you get credit for being the first (as far as we know) to do this holley on a 3G. Now that credit has been given, let's see the pics of this damn thing.

    he said the Holley was defunked so he used a motorcraft two bbl , which btw is not 500 cfm. But those are super easy to build, and have several booster venturi combinations as well as other things that are interchangable with other motorcraaft two bbl. The dirt racer mini stock crowd does use the motorcraft as well as the holley 2300 series 350/500 cfm..
    Last edited by 2oodoor; 10-21-2008 at 05:50 AM.

  4. #79


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    Re: Custom Carb manifold.

    thanks for that correction. that said, unless there's some stupidly serious headwork done, there's no benefit of a 500 cfm as compared to a 350 being that the damn head has a stock cfm of something well below 200 cfm bone stock. Hell, getting to the 200 cfm mark safely on these heads is a damn hard thing to do.

    interesting about this motorcraft tho... ...hmm... I wonder how much one can be had for.

    Guy, what sort of flow does the 32/36 have (just for sake of comparrison)?

    EDIT: Guy, btw, I can't seem to find any flight under $240 (after fees), which is not bad, but after hotel, etc, I'm guessing I'm looking at well north of $500 to make that happen. ...perhaps after the holiday season if my pocket is not still bleeding.
    -Mark D.


  5. #80

    cygnus x-1's Avatar
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    Re: Custom Carb manifold.

    Quote Originally Posted by markmdz89hatch View Post
    oh no. Baby D woke the cygnus!

    Baby D --> If you need someone to host up the pics so they can be posted on this thread, just PM me and I'll respond with my e-mail address so you can e-mail them to me. I'll post them up as soon as you send them.

    As Guy (roodoo) said, you get credit for being the first (as far as we know) to do this holley on a 3G. Now that credit has been given, let's see the pics of this damn thing.

    Not saying it couldn't happen, but with a mostly stock engine you would have to seriously lighten the car. Under 2100lbs for sure. What's the stock curb weight on a 2dr 3g? 2600lbs maybe? This also assumes a perfect launch and run down the strip.

    C|

  6. #81

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    Re: Custom Carb manifold.

    Weber 32/36 , I have seen varying cfm ratings.. ballpark 275
    But then, the reason for the varience is probabaly the different choke sizes and main venturi between the 32/36 family. Look at the difference in these, one is a DFEV the other is DGV-5.. both 32/36


    The 38/38 is said to be in the 325 ballpark if I am not mistaken.
    The one I have is really not doing justice since Im using it on a stock worn head and the A20A1 exhaust downpipe which is a real obstuction, the A20A3 has dual outlet downpipe.
    BabyD seems like you are a veteren so I have to trust your accuracy on the timeslips, no reason to make that stuff up I guess.
    I can see high 14 in a really good run with all the compenents mentioned above in place.
    You said you advanced the cam timing so I guess you have an ACG, and you are using a EFI motor which has a better cam and exhaust manifold.. not exactly bone stock

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    Re: Custom Carb manifold.

    kinda sorta... ...(with the exception of the acg), everything you mentioned that he could have done is with stock parts, just not necessarily stock to an A1. In fact, he could have accomplished the timing advance w/ the dizzy too.

    I'm not about to call b/s on anyone either. Baby-D does seem to know quite a bit, and why chase away a person that's thinking outside the box with our 3G's. As for time, that's not a huge concern of mine, as long as there's a noticeable gain in power that's all that matters. There's so many other factors that go into time (ie. tires, suspension, reaction time, wheel-spin, shift timing, etc, etc, etc) that IMO it's not the best to gauge power gains.

    I still want to see a pic of that damn thing.

    Guy, why the hell are you not running the DFEV? Those mains and butterfly's are sooooo much larger. Can't you jet/choke that thing down? You know, I just realized what that B is missing.. ...a honkin pair of 48DCO's or even a dumb'd down 45DCOE.
    -Mark D.


  8. #83

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    Re: Custom Carb manifold.

    Quote Originally Posted by markmdz89hatch View Post
    Guy, why the hell are you not running the DFEV? Those mains and butterfly's are sooooo much larger. Can't you jet/choke that thing down? You know, I just realized what that B is missing.. ...a honkin pair of 48DCO's or even a dumb'd down 45DCOE.
    ya know it ya know it ya know it
    hey the DFEV is the small one. It is on there just to get things going and start using it as a DD. I still have the 38 I bought just for the B. And with BabyD here reviving the R&D for carbs... oh Btw BabyD why not a 4bll?

  9. #84


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    Re: Custom Carb manifold.

    hey, i just had an epiphany....

    Someone go buy some 1.75" ID aluminum small-radius J-bends, a pair of DCOE flanges, and I'll supply the ally intake-side head flange. ...cut a gaping hole in the hood and make a pair of those 48 DCO bastards face forward to be forcefed all the air they can handle.

    ....hmm... i'm off to take some measurements and make some drawings, then see just how possible this may be. One thing's for sure, it'd look SICK!
    -Mark D.


  10. #85
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    Re: Custom Carb manifold.

    Hell, getting to the 200 cfm mark safely on these heads is a damn hard thing to do.
    This is something I wanted to bring up in the 4 barrel thread. I know they make smaller ones, but isn't your average 4 bbl 650cfm? What options do we really have in smaller sizes for a 4bbl? Just curious and enjoying the conversation.
    88 LX 5spd l 32/36 weber l KYB GR-2's l Refreshed A20A3 engine l

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    Re: Custom Carb manifold.

    Green look on Summit racing sight or JEGS. Holley makes a 390 cfm 4 barrel or used to for some classes of racing I guess. Same with the model 2300 carb its for 2 barrel classes. They come in 350 cfm and 500 cfm models.


    http://store.summitracing.com/partde...5&autoview=sku


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  12. #87

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    Re: Custom Carb manifold.

    on the four barrel the cfm rating is with all four barrels, that is why using an adjustable vacuum secondary would be the thing to use here. They do not open until the motor makes enough vacuum to pull it open. You can jet and meter and the primary barrels to run as a 2300.
    If you surf around the net you can find a few places with some info, there are four barrels on in line six fords, jeeps, toyota 20r and 22r, opels.. plenty but not many Hondas since most attention to Honda was post fuel injection.
    I was looking at a street avenger Holley 570 cfm, it is very reasonable priced, well compared to DCOE anyway.
    Last edited by 2oodoor; 10-23-2008 at 02:06 PM.

  13. #88
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    Quote Originally Posted by Bass Man View Post
    Spacing as in fitting? such as tube to tube?
    no hes saying that theres not a whol lot of room for carberators, and its probly best suited for the throttle bodys

    Quote Originally Posted by markmdz89hatch View Post
    hey, i just had an epiphany....

    Someone go buy some 1.75" ID aluminum small-radius J-bends, a pair of DCOE flanges, and I'll supply the ally intake-side head flange. ...cut a gaping hole in the hood and make a pair of those 48 DCO bastards face forward to be forcefed all the air they can handle.

    ....hmm... i'm off to take some measurements and make some drawings, then see just how possible this may be. One thing's for sure, it'd look SICK!
    dude thats over the yop bro

    hey, i ran that holly through the gears, and its fucking scary fast, it comes on harder then my uncles turbo 1.8 jetta, on the other hand, the power valve sisnt like it much so im gonna have to change it, i cant post the plans so hit me up and ill email them too you.fucking fast man, all this thing needed was a bigger two barrel, you guys stick fopur berells on there and your gonna drown the motor and it wont run good



    keep it simple, run it hard

    Quote Originally Posted by roodoo2 View Post
    ya know it ya know it ya know it
    hey the DFEV is the small one. It is on there just to get things going and start using it as a DD. I still have the 38 I bought just for the B. And with BabyD here reviving the R&D for carbs... oh Btw BabyD why not a 4bll?
    couae you feeding a minow enough food for a wale with the holly 2, you guyz are gonna blow something up you stick too big of a carb on there
    Last edited by markmdz89hatch; 11-04-2008 at 08:36 AM.
    14 sec in the quarter, and all bone stock parts, wanna run money bags?
    besides, who said they had to come from a honda any way?

  14. #89


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    Re: Custom Carb manifold.

    Quote Originally Posted by baby D View Post
    dude thats over the yop bro
    already working in the drawings for it....
    -Mark D.


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    Re: Custom Carb manifold.

    im not following you babyD

    ?

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    Re: Custom Carb manifold.

    actually, here you go....

    I know scale is off, but for a quick MS Paint work-up, you can get the idea...

    -Mark D.


  17. #92
    2ndGenGuy
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    Re: Custom Carb manifold.

    Mark, that looks like it would be a fucking glorious setup! Are you gonna do it?

  18. #93


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    Re: Custom Carb manifold.

    I might give it a shot for shit and giggles next year. For now though, my focus will be to get my DCOE's running on my manifold. I need to learn how to weld, and get a cheap set of DCOE's or DCO's before I can think of the setup I drew up. I don't want to use my new DCOE's on that, as there will be so much gunk caked in the butterflys with that setup.
    -Mark D.


  19. #94

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    Re: Custom Carb manifold.

    Quote Originally Posted by baby D View Post

    couae you feeding a minow enough food for a wale with the holly 2, you guyz are gonna blow something up you stick too big of a carb on there
    datz wyroo ooz vacummed secerned doodarys thay don't open uphill theryis enuff vacummed to pool dem opened up.
    Jus whyak a too barull , samalir but bigearswim baby swim little baby whale thingys

  20. #95
    2ndGenGuy
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    Re: Custom Carb manifold.

    Why would too big of a carb blow the car up? I figured it just would run like crap, or not run at all. I mean, if you let it run like crap, then take it out and drive the piss out of it, it might blow up, but I think otherwise you probably won't do any damage.

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    Re: Custom Carb manifold.

    I certainly don't think anythings going to "blow up", as 2nd gen said too large of a carb is probably going to make it run like shit.
    That was kinda what I was getting at. If the head only flows 200cfm max a bigger carb is just overkill that I don't think is going to result in a faster car, or if anything result in a car that only runs well at WOT. Maybe I'm wrong, it's happened before.
    88 LX 5spd l 32/36 weber l KYB GR-2's l Refreshed A20A3 engine l

  22. #97


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    Re: Custom Carb manifold.

    I think it's all a matter of your jetting. Think about it, those (including myself) that look to go with DCOE's (45's or larger specifically) might just have a VERY poorly running car if they went wide open with the largest jets. As soon as you start jetting and choking it down, you can get pretty much anything to run on anything, as long as you're not trying to put a too-small carb on a car that needs more air then the carb can handle. Of course that rule only holds true if you're able to get jets small enough to choke it down.
    -Mark D.


  23. #98

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    Re: Custom Carb manifold.

    Quote Originally Posted by markmdz89hatch View Post
    I think it's all a matter of your jetting. Think about it, those (including myself) that look to go with DCOE's (45's or larger specifically) might just have a VERY poorly running car if they went wide open with the largest jets. As soon as you start jetting and choking it down, you can get pretty much anything to run on anything, as long as you're not trying to put a too-small carb on a car that needs more air then the carb can handle. Of course that rule only holds true if you're able to get jets small enough to choke it down.
    Exactly, for example is this 38 weber I have on the DX, stock with and old head, and crappy A20A1 exhaust. too much carb for it? I am sure it is.. does it run better than the OEM .. oh hell yeah it does
    Will a four barrel 575 total cfm with adjustable vacuum secondaries, be too much carb for a B20A 16 valve, with modified intake manifold and modified exhaust and distributor timing curve? hell no it won't.. LOL swim baby whale minniows, swim

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    Cool Re: Custom Carb manifold.

    Quote Originally Posted by roodoo2 View Post
    datz wyroo ooz vacummed secerned doodarys thay don't open uphill theryis enuff vacummed to pool dem opened up.
    Jus whyak a too barull , samalir but bigearswim baby swim little baby whale thingys
    yeah , ok, thats why mine blew up right, aperently it makes enogh power to shake the rods loose, at half throttl and 3300 rpm, and i finished the race and i still one but that lil bit is clicken and a clankin, aperently, it needs to be done to a fresh motor, you guys are nuts you think a fourberells even gonna make it through tuning, but hey its your cars right, any ways i have one for sale, needs a motor and trany, 4 in drop, custom fenders, sustom spoiler, no ecm, cruise, powere steering, ac, just heat a radio and lightsmottor needs #1 rod bearing, front and rear seals, and a head gasket, couse she poped them all out, but its 13 sec car., im keeping my weels, and my auxiler fuel pump, the rest is for sale, ill think abvout parting it out, but i want a grand for my nossan, i have to have something to drive, ive decided my beracuda is more important to me than my three gee, oh yeahand the pcv tub from the chamer to the manifold, it uh hit the dirt to
    i alredy washed the oil off the windsheild
    poor car just didnt like eatin that volkswagon for lunch, oh well
    seriously guys under 10000 rpm a 2 berells enough, that motor is gonn take whatever you feed it though so do what you want, its your safty, your choice, but man is it cool , when your passin a 1.8t jetta like its settin still
    Last edited by markmdz89hatch; 11-10-2008 at 09:30 AM. Reason: Please keep name-calling out of it.
    14 sec in the quarter, and all bone stock parts, wanna run money bags?
    besides, who said they had to come from a honda any way?

  25. #100
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    Re: Custom Carb manifold.

    Quote Originally Posted by 2ndGenGuy View Post
    Why would too big of a carb blow the car up? I figured it just would run like crap, or not run at all. I mean, if you let it run like crap, then take it out and drive the piss out of it, it might blow up, but I think otherwise you probably won't do any damage.
    lets say , your racin, you launch, eas it through first standon it in sec, and halve way through third it starts puttering and going clack clakety clack, you pill it apaort, and instaed of connecting rods you find these horseshoe looking thingys wraped around the crank

    my two berrel was just a lil much, but man was she fast, its for sell by the way, a lil n=bit o work, maybe if you stole the ideas off of my car you could build a nice car that ran the same, my car just couldnt handle dady being a hotrodder. so its for sell, and im gonna fix my timmid nissan, and go get my berracuda out of storage, i figure if i can run 14s with a honda 9s should be easy in my fish.
    14 sec in the quarter, and all bone stock parts, wanna run money bags?
    besides, who said they had to come from a honda any way?

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