Best part of your videos is making people think! I learn something every time. Thank you for sharing your knowledge and experiences!
@bdugle1
3 жыл бұрын
As a corollary, the different tuning engine speeds of the Ford or LS single plane might favor a carb rather than injection-unless you tune each cylinder separately. If the carb just supplies the desired mixture, then each cylinder draws as much as it will take, whether in synch with the reflected wave or not, while the EFI just squirts the arbitrary amount of fuel. Not sure if there’s enough difference in the runners to see this on the dyno, just speculating.
@tpeace2160
3 жыл бұрын
Do you port dual plane manifolds? and if you do how much does it help?
@ArthurSperotto
Жыл бұрын
Sorry I'm not Eric, but just wanted to chime in that from what I have seen, a well ported dual plane RPM airgap will perform almost as well on the top end as a big single plane, but with a ton more torque in the low and mid range. So, helps a ton. This is on a rowdy street/strip small block application. Full race app. should always go with single plane.
@jodysmith3662
3 жыл бұрын
You might have already done the test I'm not sure. What about a before and after test for porting a manifold with it bolted to the head to show what it picks up...
@jeffmays930
3 жыл бұрын
Thank you for the information you provided, but I was hoping y and U were going to discuss what areas are important to port on an 8.2" deck sbf. Would love to see that as well
@92BiminiCoupe
3 жыл бұрын
Questions for Friday. I'm using the 9.5 deck Vic Jr, converted to EFI on a 408 W. Time to pick a cam and I thought the 4 pattern might be a good way to even the curve and runner length out. Maybe get a few more usable RPMs down low and up top. I have not found an OTS 4 pattern cam made for a solid roller setup. My AFR 1456 spring pack is the 8k 220 seat .710 max. My coupe is for the street and I thought about getting away from the hydraulic roller and going for solid. I may drive it 1k miles/year. I would be happy to hear any suggestions you may have including also if I should just stay hydraulic roller. Seems I've had some issues with finding good quality lifters in the last ten years or so. Thanks so much Larry Tonini Huntsville Alabama. The engine is 9.5:1
@paintnamer6403
3 жыл бұрын
I think it was in the '70s when the Edelbrock Trantula had the carb flange twisted on the big block Chevy to get more power. I guess it was something to do with runner length.
@jeremypike9153
3 жыл бұрын
This was the idea behind the original Edelbrock Torker intake manifolds as well. Single plane with a twisted carb flange. I had an original but ended up buying a new style Torker II that doesn't have the twisted carb flange and is not near as tall.
@josephwhiting2448
3 жыл бұрын
how do you calculate (graph) plenum volume + runner volume needed for a given displacement and RPM curve ?
@johnaubreymitchell7128
3 жыл бұрын
That is a question I was going to ask but you asked it for me
@kdeupser
3 жыл бұрын
Question, why do you think we don't see somebody using the Swedish company Konigsee "freevalve" technology in an after market US head, such as a company like Brodix or Trickflow or AFR? I think hotrodding would explode this technology?
@QETVAN
3 жыл бұрын
On the Ford Super Victor, let’s say 9.5 deck, would there be much of an advantage converting it to a 4500 flange vs the 1450, in intake itself or would that be more advantage by adding larger carbs/throttle body.
@arturozarate1752
Жыл бұрын
Sniper Stealth 4500 for the win. I believe the advantage of not having the booster and still having the fuel come in from above the large butterflies would be really advantageous. The fuel would evaporate and cool the air charge really well plus the additional flow......POWER! Don't take my word for it I'm only making an educated guess.
@arturozarate1752
Жыл бұрын
Maybe Eric will chime in and help
@inscoredbz
2 жыл бұрын
When I worked my SBC Victor Jr 2975 (I think that's the part number), I matched the top on the plenum up to my carburetor base plate gasket and opened it up down into i the intake. Basically I added plenum volume. Did I screw it up? It's going on a 383 Chevy.
@terryenyart5838
2 жыл бұрын
Eric, Would you please comment on whether or not you have ever used a turtle in the plenum floor to aid in turning the air into the ports and fuel atomization/reintroduction into the air stream? The ones I've seen are higher in middle and tapers towards the ports with grooves on the surface. This removes a little plenum volume, but wondering if the gains are in air flow or fuel related or just a gimmick? Thank you Terry
@hotrod7938
2 жыл бұрын
Good question
@TPVPRO
3 жыл бұрын
I got one splayed valve vs SB2 heads I herd the splayed valve is a Ford Cleveland clone.
@minibuggies926
3 жыл бұрын
Can you talk about air/ fuel distribution? I've had a few cases on the dyno where the egt's & afr's were all over the place. My last carburated sbc with a cnc Chapman intake was one of the worst. Had to try 8 different carb spacers till I found one that was somewhat ok. Not asking for any secrets but do you have a basic design and technique that gives you the confidence to send out intakes knowing the distribution will be on point. I realize every engine is different but from a general standpoint I think this would be a very interesting video.
@b.c4066
3 жыл бұрын
At that level wouldn't you be testing actual headers, and induction used on the customer vehicle with 8 widebands, experiment with staggered jetting in carb application, or individual cylinder correction if efi? I mean, Siamese runner stuff for max effort would require that and nothing less to dial it in right? Probably a tough sell for most customers, but they could easily get more average and peak power, as well as increased reliability with that kind of testing and tuning. No one size fits all cookie cutter setup will do that, average parts assembly and tuning would get average results. Am I wrong?
@minibuggies926
3 жыл бұрын
@@b.c4066 I wouldn't say your wrong, absolutely an engine with consistent egt's and afr's will make maximum avg. power over the same engine with a couple cylinders that are off from the rest. In most cases I don't have the luxury of trying multiple sets of headers and of coarse individual tuning with a carb is not an option. I see big changes in data mostly with intakes. And when your stuck with one intake that doesn't work it can be very challenging. Stagger jetting can help but its normally a bandaid for something that's really wrong. With this Chapman intake I considered sending it to a few different places but no one could guarantee me it would work properly. One place told me to try a different cam with different profiles on the weak cylinders. Ultimately I found a spacer combination that got me close but I feel I was still down 30hp from what it would be with equal temps.
@johnnypursley3193
3 жыл бұрын
Is there anything that you can do for RPM air gap
@ShawnGilbert1967
3 жыл бұрын
Are you able to drill out the injector bung areas for fuel injectors? Especially when they have a boss for it that are pre-centered and partially drilled?
@bigredracer7848
2 жыл бұрын
the dimpling you do on the intake or runner on a cylinder head will it work on an intake too
@Torquemonster440
3 жыл бұрын
How detrimental is a 1/8" port mismatch in a low speed area ? ie.. bottom corner of the runner. By mismatch, I mean the manifold port is larger than the cylinder head port. Now, I know a mismatch in the other direction [manifold port is smaller than the head port] is not as critcal. Obviously a mismatch along the top of the runner is bad. [High speed area]
@foxbodysandfreedom8595
3 жыл бұрын
Im looking for 650-700 whp in a street car I wanna use a dual plane intake Whats your opinion on using a carb spacer like 2-4" inches pros cons? Worth it? And open spacer or 4 hole supper sucker models ?
@QETVAN
3 жыл бұрын
A FORD !!!! 🙀
@cathygambill1554
3 жыл бұрын
Have you flowed the bolt hole grind throughs in the chevy intake ports with and without head bolts in them?
@TheTrumpetdog
3 жыл бұрын
I currently run a Parker Funnel Web. Is this manifold any better?On my drag car I run 8000 going through the lights.
@jefferybernard4800
3 жыл бұрын
When you pour an intake what attention do you give to the plenum. Wilson has a mod to keep the inversion pulses down
@wellthatdidntwork
3 жыл бұрын
So im very curious as to the flow and power difference between a sbf edelbrock intake just like this one and the summit racing brand that i actually have. Would it be worth the difference in cost out of the box the get the edelbrock over the summit brand?
@Procharged32
3 жыл бұрын
Have you ported the sbc efi version like this one I'd been interested.
@MarkStJean-jp8qf
Жыл бұрын
Thanks for the videos. When averaging out the runners, do you alter your port entry size, taper, or leve them proper for the lengths they are? 2928 manifold 363ci 7500rpm
@WeingartnerRacing
Жыл бұрын
It’s not one thing I do but many. Line of sight is most important to me.
@clevo351
3 жыл бұрын
Good Video Eric, When you going to show us the CHI manifold?
@davidsprigg5451
3 жыл бұрын
Have you done anything with the Focus head? Gains to be had?
@earleburtonjr9292
2 жыл бұрын
I see long separation
@andrewstevenson719
Жыл бұрын
Hello Eric, I am in New Zealand and about to port my first inlet on my own race car. It will be 375ci and 7000rpm. What width and heights should I target on the runner dimensions. All I really got from this video was the radius leading on the upper side.
@andrewstevenson719
Жыл бұрын
8.2 deck also 3.4 stroke 4.19 bore
@WeingartnerRacing
Жыл бұрын
There are some calculators online you can use to figure that out.
@Comet-hn3gm
2 жыл бұрын
Primary header length fits the same idea.
@WeingartnerRacing
2 жыл бұрын
yep.
@paulhalbleib9286
3 жыл бұрын
Love it. Are the runner vanes extend the short side runner compared to what the long pickup is at the front and back of the plenum? Essentially trying to equal the length. Also would squeezing the shorts, or longs beneficial? When things get revved up, they are all sucking from the same box. I believe that is the dip in TRs because of lazy pulse and firing order until it's sped up. Go easy on me if you think it's a dumb question. LOL
@95GTSpeedDemon
2 жыл бұрын
351w, stock shortblock. good " typical street use" aluminum heads, "mild" hyd cam, 6500rpm ceiling. Would you say a out the box super vic efi would work good for that RPM or would it have more average power at 7500 by a notable amount?
@WeingartnerRacing
2 жыл бұрын
I would use a vic jr that is converted.
@95GTSpeedDemon
2 жыл бұрын
@@WeingartnerRacing i ended up with the SV, got a deal on it. Is the 4500-8500rpm rating accurate? I may just have to get a larger cam and turn the rpm a little higher. I have been running a 302 and the parts i picked sounded like a good idea at the time but i realized that intake ports make a big difference in low rpm power and thats where im lacking. I dont want to make the same mistakes with the 3.5 stroke.
@0347kali
2 жыл бұрын
I have a 94 5.8 with edelbrock rpm heads. I want to use this efi manifold. Problem is I'm worried about drivability under 3500 rpm.... I'm running a manual tranny
@f-bodyjon2189
3 жыл бұрын
Man, you got me wanting to switch to a ported single plane for my carburetor intake LS1 😆🤦♂️ Is it really time for me to sell the dual plane? 😆🤷♂️
@porterarthur659
3 жыл бұрын
Eric, I know this is a non sequitur, but it is about what size oil accumulated to use. Is bigger better? I have a stroked 302 sbf that I want to reduce the height of the oil pan for ground clearance. I have room for both a two qt. and three qt. Thanks. Your videos are great!
@turbo-jm8hk
2 жыл бұрын
I have this exact intake but unported. How much do you charge to port this intake?
@WeingartnerRacing
2 жыл бұрын
$700
@earleburtonjr9292
2 жыл бұрын
Back ordered to Never ! Bwahahaha
@michaelgiglio1571
2 жыл бұрын
I think about differant runner lengths every day. Would not be hard to make them the same length with an engineering degree. So disapointing
@ecc5119
3 жыл бұрын
So the short runner acts as a ram air for the longer corner runner at high rpm where it wants to sign off?
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