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Re: Get yer Bulldog flow numbers here...... [Re: topfueldart] #10153
02/07/04 11:19 PM 02/07/04 11:19 PM
Joined: Jan 2003
Posts: 1,855
Staten Island N.Y.
Dap Offline
top fuel
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Staten Island N.Y.
When the heads were ordered all that was done was a valve job. I then sent them to Dwayne for some R & D to shed some light on these heads and see what they are capable of for all of us to see. Dwayne will be doing the work on the heads and he is also going to build and dyno the engine.I wonder what those numbers are going to be?

PRH446
10.084 @ 135.21 mph N/A through chambered mufflers,3300lbs. Stock stroke wedge
Re: Get yer Bulldog flow numbers here...... [Re: Dap] #10154
02/08/04 11:56 AM 02/08/04 11:56 AM
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So. Burlington, Vt.
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fast68plymouth Offline OP
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there seems to be a bit of confusion about these particular BD heads.

these heads were bought from MM by Dap, as a retail customer.
MM didnt know they were going to be shipped to me, or that they were going to get flow tested or scruntinized.
they were delivered to Dap(and then to me) in a "ready to run" condition.

my guess is that MOST of the BD heads that get sold, will be prepped by the retailer...not Bulldog.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Get yer Bulldog flow numbers here...... [Re: fast68plymouth] #10155
02/08/04 12:54 PM 02/08/04 12:54 PM
Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
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Im' pretty new to this web site, but I have been reading alot of the threads on various things, and one of the most interesting things so far are about these bulldog heads, I am in the process of stepping up from my smallblock,J headed, 76 dart to a 89 daytona full chassis car, with of course a 400/496 stroker(one small step for mankind,one humongous leap for me!!!) and one of the biggest questions was, my pick of heads.Indys are out because of budget constraints, E-heads were the logical choice because most anyone that I talked to had good sucess with them, now comes the bulldogs and the only thing that I know about them is what I have read here. In your opinion would you think that I would still be better off starting with the E-heads and later progressing to the bulldogs once the bugs and gremlins are sorted out? plus seeing what you have come up with on flow numbers will give my engine guy somthing to work with, thanx

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Re: Get yer Bulldog flow numbers here...... [Re: dartman366] #10156
02/08/04 01:37 PM 02/08/04 01:37 PM

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Quote:

Im' pretty new to this web site, but I have been reading alot of the threads on various things, and one of the most interesting things so far are about these bulldog heads, I am in the process of stepping up from my smallblock,J headed, 76 dart to a 89 daytona full chassis car, with of course a 400/496 stroker(one small step for mankind,one humongous leap for me!!!) and one of the biggest questions was, my pick of heads.Indys are out because of budget constraints, E-heads were the logical choice because most anyone that I talked to had good sucess with them, now comes the bulldogs and the only thing that I know about them is what I have read here. In your opinion would you think that I would still be better off starting with the E-heads and later progressing to the bulldogs once the bugs and gremlins are sorted out? plus seeing what you have come up with on flow numbers will give my engine guy somthing to work with, thanx



I too am cosidering picking these heads up. I have a 493 RB stroker motor with the Edelbrock heads. Personally I am going to wait and see if and when these bugs will be worked out. I dont want to take a set to my machinest and spend the money to find out that the head couldnt be ported correctly without making holes. Once they get this situation ironed out and Fast posts the Level 2 porting flow numbers it will be real interesting to see what these things can do. I will wait until a couple of members have good success with them before I spend my coin. I want to see how they fit as well.

Re: Get yer Bulldog flow numbers here...... [Re: fast68plymouth] #10157
02/08/04 01:49 PM 02/08/04 01:49 PM
Joined: Jan 2003
Posts: 1,807
Mopar Country, Mi
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Great info on the new head Dwayne. I would like to see the new head with thread inserts like the Ed heads have. Do you think they will bother?

Re: Get yer Bulldog flow numbers here...... [Re: fast68plymouth] #10158
02/08/04 07:28 PM 02/08/04 07:28 PM
Joined: Jan 2003
Posts: 1,263
Southwestern Ontario Canada
racealittle Offline
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Fast, are there any interesting pics to post yet?

Too many cars, too many parts, too little coin, too little space to work in, too little time left to make it all happen! Update: down to one ride, still too many parts, a little more jingle in the pocket, gaining space, and it's going to happen this year!
Re: Get yer Bulldog flow numbers here...... [Re: racealittle] #10159
02/09/04 10:48 AM 02/09/04 10:48 AM
Joined: Jan 2003
Posts: 14,504
So. Burlington, Vt.
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fast68plymouth Offline OP
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Quote:

Fast, are there any interesting pics to post yet?



i'm in a holding pattern on the second head until i hear what MM or BD finds out about the casting flaw on the head i sent back.

68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Get yer Bulldog flow numbers here...... [Re: fast68plymouth] #10160
02/10/04 08:58 AM 02/10/04 08:58 AM
Joined: Jan 2003
Posts: 2,933
Finalnd, Perkele
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So far the only price I have seen is the Hughes's 1850$ for the assembled pair. The Indy SR's are about 1800$ pair assembled. The Indys need longer pushrods, head bolts, oiling kit and valley cover. What do the Bulldogs need? Longer pushrods propablty because of the longer valves? How about the head bolts, can you use the factory ones with hardened washers? How about the exhaust flange location compared to factory iron heads? Is it higher? More outwards? Need for custom headers? I think the price is pretty close to that of the SR's, so that wouldn't lead my decision in which one to choose.

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Re: Get yer Bulldog flow numbers here...... [Re: fast68plymouth] #10161
02/15/04 01:57 AM 02/15/04 01:57 AM

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Quote:

soooooooooooooo, im getting ready to tweek the exhaust port a little....and after i removed about .020-.030 of material off the floor near the port exit.....i created a hole i called MM, and they are sending a call tag to have the head picked up and either they or Bulldog will evaluate the casting to see what gives. as for these heads being true "out of the box" since they came from MM, i would have to say they should be considered as such since there wasnt any type of "modifications" done to them other than perhaps a back cut to the intake valve....and the valves may come from the supplier that way. i did go and do a basic clean up of the intake bowl for #1, since that port was down on flow(i'll post the numbers later), but it looks like it will take a bit of work to get the weaker ports into the 305-310cfm range. not as much as an E head, but probably more than an SR. i'll have to go through my notes to see if i can find some numbers for an SR with only a bowl blend to see how the mid-lift numbers compare. at this point(which granted is very early on in the Bulldog testing) i still feel the best port design for the application these heads are targeting is...believe it or not...the original stage VI. if that head were manufactured with the quality of an E head....that would be a very good product.

I spoke with someone about this. He wanted to know "if mopars lack a port floor then why are you grinding the floor away?" Can anyone elaborate further on this question?

Last edited by 73cuda383; 02/15/04 02:06 AM.
Re: Get yer Bulldog flow numbers here...... #10162
02/15/04 02:19 AM 02/15/04 02:19 AM
Joined: Jan 2003
Posts: 8,180
Detroit, MI
CokeBottleKid Offline
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ummm he didn't read the post correctly then, MOPARs don't lack a floor, the head was a bad casting and the floor was too thing.

Re: Get yer Bulldog flow numbers here...... [Re: CokeBottleKid] #10163
02/15/04 02:25 AM 02/15/04 02:25 AM

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Quote:

ummm he didn't read the post correctly then, MOPARs don't lack a floor, the head was a bad casting and the floor was too thing.


Thanks, I will bring this detail to his attention.

Re: Get yer Bulldog flow numbers here...... #10164
02/15/04 08:59 PM 02/15/04 08:59 PM

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Quote:

Quote:

ummm he didn't read the post correctly then, MOPARs don't lack a floor, the head was a bad casting and the floor was too thing.


Thanks, I will bring this detail to his attention.


It wasn't misread
The hole is in the exhaust port floor. All of the high flow heads either raise the port or add material to the floor for more short turn radius. Why would someone cut into the floor for more flow when having more floor adds flow

Re: Get yer Bulldog flow numbers here...... #10165
02/15/04 11:48 PM 02/15/04 11:48 PM
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NC
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The way I read the post, he was just blending back the opening to match the floor. i.e. the bump between the as cast floor and the opening.

1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1
Re: Get yer Bulldog flow numbers here...... #10166
02/16/04 05:56 AM 02/16/04 05:56 AM
Joined: Jan 2003
Posts: 8,180
Detroit, MI
CokeBottleKid Offline
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Detroit, MI
While he's somewhat right that statement is too broad to apply to every port, many times you have to drop the short turn down to get the numbers where you want them. And like Jim said he wasn't even doing that, he was just blending the CNC'd entry.

First he said mopars lack floor, now he's saying Dwayne doesn't know what he's doing? I think your buddies just trying to put down mopars....
Re: Get yer Bulldog flow numbers here...... #10167
02/16/04 11:20 AM 02/16/04 11:20 AM
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So. Burlington, Vt.
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fast68plymouth Offline OP
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Quote:

Why would someone cut into the floor for more flow when having more floor adds flow



obviously the guy porting the head has no idea of what he's doing.

im sure that someone who isnt working on the head, or hasnt seen one up close and personal would have a much better idea of how to get the exhaust numbers to come around.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Get yer Bulldog flow numbers here...... #10168
02/16/04 02:34 PM 02/16/04 02:34 PM
Joined: Jan 2003
Posts: 10,766
Central Valley, CA.
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Quote:

Quote:

Quote:

ummm he didn't read the post correctly then, MOPARs don't lack a floor, the head was a bad casting and the floor was too thing.


Thanks, I will bring this detail to his attention.


It wasn't misread
The hole is in the exhaust port floor. All of the high flow heads either raise the port or add material to the floor for more short turn radius. Why would someone cut into the floor for more flow when having more floor adds flow



oh...you must be new around here......

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