Intake or spacer
 

I received the Dart adaptors so I can run Dominators on my current intakes (Darts). However the amount of grinding that is going to need to be done, I'm thinking about ditching this plan and just buying Victor intakes. While it doesn't look like much, the center divider runs all the way up to the lip that is protruding out. This is going to mean a lot of reshaping. The only reason for any hesitation, is that the current darts have been port matched and fit perfectly. That being said, it would probably be quicker to just port match the Victor, than mess around blending everything to get these adaptors to fit perfectly. Plus if it doesn't work well, I have two intakes that are pretty much worthless. What are the opinions on this? Do you guy agree that the Victor is the best option here? If I'm overlooking a better intake let me know, maybe Sniper Jr?

For those that don't know, this is my set up:
509 cu
Dart Pro 1 320 finished runner, JimV heads that flow +/- 398
Crane 741 Cam
10:1 cr
Eickert Headers
AED Dominator 1050
Daytona Ignition

Why a dominator with such a small cam and intake?

i would go with the new victor,s or maybe ditch the dominator and try a 4150 1050 first.

don't forget the floors of the ports on the heads and the dart intake have been raised about 3/8 inch.
If you only knew how many hours I had port matching the intakes to the heads on both of those engines.
Unless you plan on changing the cam I would stick with a 4150 carb.
With the setup I had in the Scarab the engines were at max output at 5400 RPM before I got to full throttle.
So the HP 950's that came with the engines were big enough.
Are you proping for 5700 RPM? That is where they should be.
I was going to have the stock Bravo 28's labbed but lost interest in the Scarab since Patty wouldn't let me go to Lake MI anymore and the Scarab was boring on Hardy pond.

On the Daytona the same exact engine / drive / prop combo turned 6000 RPM and I reached max output at 6000 RPM and full throttle. No extra throttle left.
With all of the work you are doing I would install a bigger cam. I was thinking about doing this and doing some more power adders before I bought the Daytona.

I'm prototyping up some new adapters while I read this.

http://i43.photobucket.com/albums/e3...417_171516.jpg
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http://i43.photobucket.com/albums/e3...417_171425.jpg

[QUOTE=Rookie;4548624]I'm prototyping up some new adapters while I read this.

Looks like you're having some fun with that 3D printing machine of yours. Pretty cool stuff. What size are the engines your working on now? Are these still your 468's?

Adding a bigger cam has been in the back of my mind. I may if I can get the time to get the other engine out. I really need to get this new project wrapped up, I need to get the boat down to Valako soon so I can have him make the new tail pipes. There was a guy on here this winter that had a pair of 509's set up almost the same, except with stock pro 1's, 651 cam and 1050 dominator and he was making over 700 hp. He sent me the dyno sheets and it had a great power band. I really think the 1050 Dominator is a good carb with this engine. I like experimenting with things so we will see how it pans out.

Yes I am. I have been making gaskets and spacers for my engines. One day at the shop JimV clayed up an adapter like you have and asked if I could print one. I drew up the cad and viola I have his designed spacers. The neat thing with a few clicks on the mouse I can make stock height 2" or 4" or 10" spacers. I also have these in straight 4150 and dominator.

Still my 468's. I am making 5" 4150 spacers similar to add runner length in theory. I have some Merc 420's that I need to put back in my Panther after I pulled it's power for my Active Thunder.

If you're making these, I wouldn't mind trying a pair like you have pictured. I was about ready to pull the trigger on a pair of Victors. What is Jim's opinion of the spacer, did he help you design it?

Those engines always sounded nasty in Tinkerer's old scarab. They just had that "IT" sound. lol

Yes, Jim supplied the original clayed up adapter that I derived the CAD from.

Any interest in making 2 more? Can they be run, or are they just for modeling purposes?

They should be able to be run, I'm going to run them. I need to run them first, also some are going out to engine builders for dyno testing. What color would you like?

running the adapters(once matched to the flange works very well, a lot of drag racers swear by this and run them this way over a dominator intake, all has to do with the signal the carb see's from the engine

The orange looks cool, either orange or black. I'm running large oval air cleaners so I don't think they'll even be visible.

That's the general consensus I've come up with too. Even when I talked with Dart, they suggested to run the spacer. To bad they didn't make their adaptor to fit their intake better. If I can run one of Jason's adaptors, i'm going to give it a shot.

That's very cool. What material is that it made it out of?

The orange spacer is PETG, rigid with a decent heat deflection temperature. I have a structural reinforced high heat deflection poly-amide alloy blend coming this week.

Those look awesome Jason, did you guys decide on how tall to make mine. Those look like my intakes....:)

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Yes, those are your intakes. If you're going to dyno I'll have a 2" (orange as pictured) 3" and 4" hopefully.

Those spacers be the way to go mike. You'll get that funnel effect which your engines will dig. Honestly I'd keep your 741 cams with a set of those spacers and doms Ram all the air in you can. You might even want 3" if you have the room. This will be a great test. Can always swap out cams but one thing at time. That's just me. Though.

I always felt they could use more cam.

I don't think the floors were raised. John and I looked at the ports when I pulled the intakes, and we both agreed the heads were just ported, and the floors were not raised. I'm going to run the Dart intakes for now, but if I switch I don't need to have the intakes welded up.

If you looking to swap out intakes I have one SV 2927 Dom flange. It's at Valakos.

I thought about the SV, but I think it's too big for my engine. Isn't that for 540 or larger engines?

Theyd work better on larger cubic inch or higher rpm on 500 plus or minus builds without a doubt. They have shorter runners than darts also. I really like the idea of using your current set up with Jason's spacers. You'll actually be tricking your intakes into a tunnel ram. Also will be nice to see if you gain rpm with your doms and no other changes. I would guess you will.

Ummm...No. :wink

What if David Copperfield does a little magic on them?

Like last year, lots of changes going on. The entire fuel system is being upgraded, -3 Imco's vs -2 Sportmasters, Daytona ignitions vs TB, and Eickerts vs Gils. As a whole there will be some improvement, but how much does each contribute? Who knows. I sent back the Dart adaptors today, so hopefully I can get some of Jason's adaptors, otherwise I'll go to my original plan which was the HVH super sucker adaptors.

I went with the Vic Jr on my 525's and found this spacer to use

I used a very similar spacer last year on my enigines. It was a 1.5" Wilson tapered 4 hole spacer. Now I need a 4150 to 4500 adaptor spacer.

Your running Dominators on 509's ? sorry Ive not read all your thread

Yes

I'm running those right now. I'm going to try my new ones and see if RPM's/MPH increase. I will try 1" to 4". It's nice to have space between carb and hatch!

When Smitty dyno'd my carbs he used a 1" 4 hole and a 1" open spacer, so I have the same thing with one less gasket.

I decided today to just swap out the intakes and be done with it. I ordered 2 Brodix HV2001's. I've been looking at this intake for while and after a conversation with Getrdunn this morning, we both agreed that is the best intake. I'll post later how all this turns out.

Lot of guys been doing that. Just depends on build/combo and what the engine likes best. Trial and error.

Good move mike. I had two on order before I ended up going sc. There an excellent intake with good runner length. Will need a little work though. I run the HV 1200 on my 421 sbc in the 73z. Pulls extremely hard.