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So I’ve got one of these big dogs porting intakes here…

15517 Views 208 Replies 38 Participants Last post by  96pushrod
A kind gentlemen - who is not big dogs, or affiliated with them sent me a big dogs cobra intake that has been ported. I’ll be replacing the box r intake on the car temporarily to see the difference.

I won’t get into the pissing contest, really here as a third party to make a comparison. Here are some pics of it compared to a factory explorer intake. All measurements are in mm.

This will be a strict a to b comparison deal. I’ll look at fuel flow and dragy times to see which one works the best. Engine is a woody built 347 with a f1r blower. Any ideas on which will come out on top?

If anyone wants any other pics or measurements, please Let me know and I’ll oblige if I can.

Saw Tool Machine tool Milling Power tool

Gas Auto part Wood Engineering Metal

Automotive tire Wheel Rim Rolling Automotive wheel system

Bicycle part Crankset Bicycle handlebar Automotive tire Auto part

Automotive tire Motor vehicle Bumper Metalworking hand tool Tool

Hand Tire Automotive tire Bicycle part Wheel

Hood Automotive tire Bumper Automotive exterior Tire

Automotive tire Automotive lighting Vehicle Bumper Automotive exterior

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Looks like you have an extra spacer on the TFR box what size is it and why do you need it?

Looking at this I'm wondering if you will also see higher intake temps with the cobra intake. I did send you a spacer but really hoping you don't need it.
I had it on there originally for fuel regulator clearance. It really isn’t needed anymore, but all the piping fits well and it makes access to things a little easier so I left it on there.

I doubt manifold temps will be much of a difference at all. Pretty negligible
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Here are some port measurements between the r lower and the BD ported one.

BD

Crankset Automotive tire Tire Wheel Vehicle

Automotive tire Bicycle tire Bumper Automotive exterior Rim


R Lower

Tire Wheel Vehicle Automotive tire Hood

Automotive tire Tire Automotive exterior Bumper Bicycle part

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Vehicle Hood Car Motor vehicle Automotive design


Had to make a new pipe in the fender well since the intake is so much shorter. Also had to move the fpr. Gonna walk the dog and eat then it should start after I stab the cam angle sensor
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Liquid Snout Circle Automotive tire Automotive wheel system


I didn’t realize how **** this picture was until I had the upper bolted on. A little more mismatch than my r lower. The R looks damn close to flush with the heads.
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is that the top or bottom of the port? might of been able to get a thicker or thinner gasket to get better alignment. I hear the top of the port is most critical.
is that the top or bottom of the port? might of been able to get a thicker or thinner gasket to get better alignment. I hear the top of the port is most critical.
Normally, the short side is the highest velocity, so look at the flow path at every turn to know which side that is.......on a head, it is the floor at the SS turn at the bowl but at the port entrance...... then back that up into the intake.......
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is that the top or bottom of the port? might of been able to get a thicker or thinner gasket to get better alignment. I hear the top of the port is most critical.
Bottom. It has a .090 gasket now.

Going to have to pull the upper off tomorrow and put the spacer underneath it since the valve cover interferes. Also going to need to move the driver side coil bracket a little since the upper will hit it when it gets spaced up.
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Looks like you have an extra spacer on the TFR box what size is it and why do you need it?

Looking at this I'm wondering if you will also see higher intake temps with the cobra intake. I did send you a spacer but really hoping you don't need it.
Is this the manifold you sent to us that was ported by the other porter that flowed like crap when we initially tested it and sent you a video of? If it is then you should let us know what your car dynoed with his ported version so we can include them all because that's what you initially said you were going to do right?
Also spacers ADDS runner length. Our testing shows a 1" spacer reduces peak hp rpm about 250-300rpm. That is something that should be known.
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Is this the manifold you sent to us that was ported by the other porter that flowed like crap when we initially tested it and sent you a video of? If it is then you should let us know what your car dynoed with his ported version so we can include them all because that's what you initially said you were going to do right?
Also spacers ADDS runner length. Our testing shows a 1" spacer reduces peak hp rpm about 250-300rpm. That is something that should be known.
He has your ported 3/4in spacer (Maybe 1/2in ) that you sent me. Same spacer I pulled to 5,484rpms.

No that isn't that intake this was the first one I sent you. And I never said or will I ever throw anyone under the bus as long as they don't give me a good reason. The other porter didn't claim he was going to give me max numbers out of my cobra intake he told me he could later if I wanted to send it back but at over 5x the cost of you doing the work. He also told me it was a waist of time to port the upper. I can say that your upper stage 3 cut and ported was good for 30hp and 500rpms over your stage 2 upper. I sent you that intake to do the stage 2 and was happy with those results.

I think you really miss the point sometimes the other guys don't port to this level because they just tell people to buy another intakes. They say it's not worth their time or your money. Now at the price you offer to people wanting this intake its worth it in my eyes if they want this intake.

It's just comical to compare your intake to theirs (Yours is way better) anyone who has seen both knows that and dyno numbers are the same BUT again they aren't claiming 330CFMs on a GT40 intake. They are saying buy the TFR box at 280CFMs have them touch it up and make 330CFMs. And they claim that the 330cfms will flow great and match up when bolted to the heads. This is the part that they find comical.

JUST the GT40 intake (I and the internet as a ton of data to support this) (I have data Dyno #s and all of a 392 only making 360hp and a 347 making 356hp) But again they tell you buy a different intake spend your money better.
Your stage 2 is worth a minimum of 10hp over the others
Your stage 3 is worth a minimum of 40hp over the others and 500rpms

But again they say its a waist of time just buy a better intake.

I'm not hating on you or them them this argument is just stupid.

We are comparing what's know as one of the best intakes on the market to your stock intake that has been ported if people think your intake should win thats crazy. The idea shouldn't be does it win but how well can it do. Personally I think it will perform great considering what it is. If you also look at it compared to other intake you are outperforming almost all of them.

I'm a month or 2 max from testing the TFR box and long runner vs your stage 3 NA.

As I have already said many people don't want the box due to hood issues or just like the looks better.
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Str8baller,

This is where you forget what you said you were going to do in the original thread you created that got shut down and originally in PM on our business page in the beginning. You did say you were going to give a comparison of the different ported manifolds then later when I asked you, you said it wasn't even worth comparing. It's not about throwing anyone under the bus. It's about telling the TRUTH in public and not just in private.
Our stage 2 and 3 are good for more than the numbers you stated because we have compared them on better combos than what your combo called for. In the beginning when you sent your combos specs I told you they were mild for a 363. You had a Mild 363 with a very mild cam that was designed to be very streetable. Thats what you told me. We can make our Stage 3s runners much shorter than 12" fyi. Your stage 3 was setup for YOUR combo and it did exactly what we said it was going to do on your combo even when you used a spacer that ADDS runner length. Your results were not because of our manifolds limitations and I have shown you several dyno results of our stage 2 and 3s both making peak hp at much higher rpm than 5,500. It was because your combos build was mild. Our max ported stage 3s have supported more power than what your combo made so to say what their limitations are based off of your setup is wrong. We have other customers making peak hp at much higher rpm than yours because they had better cams. That's like saying a Systemax 2 manifold is only good for 275whp because that's what a guy made on his combo running a Systemax 2.
We have also seen your testing to not be consistent or accurate because too many things were being changed in between testing from headers, tunes, tires, spacers and different dyno types. That's not how you accurately compare. This is just me being honest based off of what I've seen.[/QUOTE]
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@Putyoutorest
I did say minimum difference not max.

What I said word for word. COPY AND PASTED
I want stage 3 full port max as max as you can go. Shorten runners as much as you can go. Just needs to look like stock when I get it back. Also sending you my 65mm TB to do as much as you can to it. They will be running on Trickflow 205 11r heads so port needs to be for a 1262R gasket. 1.40”x 2.25”. I’m the guy on corral that everyone says a Gt40 can’t go on a built 363 so I’m hoping you can prove them wrong. Also I will be posting for all to see so if the intake does good I’m sure many will be headed your way. Open the TB of the intake as much as you can also it is at 75mm now but I will put as big of a TB on it as you can make the hole.

What you said
Got it. I can get you 330cfm with a basic stage three and more with modifications that include welding more metal on the upper for and additional cost. Ok the TB I will open to 80mm but a good ported 75mm will flow 1,000cfm which is more than the Cobra's tunnel can flow due to its design.

What I said
I want you to port to the max I don’t mind extra metal and welded or what ever as long as when your done it’s painted and comes back looking stock

What you said
Ok I got you
💪
💪
👍

I've been waiting for another customer that would let me flex my muscle and show out! Wait till you see what we can really do!! Videos for sure!


Now if you lied to me maybe you should make it right but lets be clear thats what was said in messenger word for word on 06/11/2019

Again I also never said I would bash another person I don't have to look that up. I may have said I would post numbers of another intake and never did. As I said I'm not going to bash another person. My goal was never and is never to make a person look bad its to help other make a discussion on what to do and give option based off of what I have done. I like to help not hurt. Your numbers are better than anyone else and you really just have no idea how to take that WIN.
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@Putyoutorest
I did say minimum difference not max.

What I said word for word. COPY AND PASTED
I want stage 3 full port max as max as you can go. Shorten runners as much as you can go. Just needs to look like stock when I get it back. Also sending you my 65mm TB to do as much as you can to it. They will be running on Trickflow 205 11r heads so port needs to be for a 1262R gasket. 1.40”x 2.25”. I’m the guy on corral that everyone says a Gt40 can’t go on a built 363 so I’m hoping you can prove them wrong. Also I will be posting for all to see so if the intake does good I’m sure many will be headed your way. Open the TB of the intake as much as you can also it is at 75mm now but I will put as big of a TB on it as you can make the hole.

What you said
Got it. I can get you 330cfm with a basic stage three and more with modifications that include welding more metal on the upper for and additional cost. Ok the TB I will open to 80mm but a good ported 75mm will flow 1,000cfm which is more than the Cobra's tunnel can flow due to its design.

What I said
I want you to port to the max I don’t mind extra metal and welded or what ever as long as when your done it’s painted and comes back looking stock

What you said
Ok I got you
💪
💪
👍

I've been waiting for another customer that would let me flex my muscle and show out! Wait till you see what we can really do!! Videos for sure!


Now if you lied to me maybe you should make it right but lets be clear thats what was said in messenger word for word on 06/11/2019

Again I also never said I would bash another person I don't have to look that up. I may have said I would post numbers of another intake and never did. As I said I'm not going to bash another person. My goal was never and is never to make a person look bad its to help other make a discussion on what to do and give option based off of what I have done. I like to help not hurt. Your numbers are better than anyone else and you really just have no idea how to take that WIN.
Telling the truth is not bashing anyone. You said you were going to give a review on all manifolds that were ported. Then when it came down to it you didn't and when I asked why you said there was no need to because it wasn't worth comparing. I'm just going off of what you said lol.
You act like you didn't tell us your combo specs. You wanted it to look like stock right? Looking like stock and the best that we can do are two different things. Why in the heck would we make your manifold runners 9" long when your cam is a street cam for your combo?? Your flow numbers are 100% legit as we flow everything on the same bench the same way including out the box aftermarket manifolds as well. You told me your setup was for street and occasional track and not race only with a solid roller cam. You've seen dyno results from our max ported stage 3s before. Now you are saying our claims are comical. At this point we just want honesty which it seems like people won't give on public platforms only in private messages.
It's all cool though, I get it lol.
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Str8baller, you don't understand how much an insult it is to say the hard work we put out, has comical results? So how when we flow aftermarket things, our flow bench, seems to be close to industry standard? But, when we flow our ported parts, its totally inflated? There are no adjustments on the bench, everything is calculated. So maybe we whisper to the computer to "up the numbers!"

I apologize to the OP for the post, but I took offense to that.
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Already starting with the excuses. This is going to be fun.
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Str8baller, you don't understand how much an insult it is to say the hard work we put out, has comical results? So how when we flow aftermarket things, our flow bench, seems to be close to industry standard? But, when we flow our ported parts, its totally inflated? There are no adjustments on the bench, everything is calculated. So maybe we whisper to the computer to "up the numbers!"

I apologize to the OP for the post, but I took offense to that.
I'm really lost I said (It's just comical to compare your intake to theirs) It is yours is way better when it comes to the GT40 as I said it makes more power no matter what.

Now I said what they find Comical is (They are saying buy the TFR box at 280CFMs have them touch it up and make 330CFMs. And they claim that the 330cfms will flow great and match up when bolted to the heads. This is the part that they find comical) They say this all the time over and over I didn't say I say it if I did I wouldn't have bought your intake and plan to run it forever.

I did update the above just in case that wasn't obvious.
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Already starting with the excuses. This is going to be fun.
No excuses. If everything is fair, it is what it is.
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I'm really lost I said (It's just comical to compare your intake to theirs) It is yours is way better when it comes to the GT40 as I said it makes more power no matter what.

Now I said what they find Comical is (They are saying buy the TFR box at 280CFMs have them touch it up and make 330CFMs. And they claim that the 330cfms will flow great and match up when bolted to the heads. This is the part that they find comical) They say this all the time over and over I didn't say I say it if I did I wouldn't have bought your intake and plan to run it forever.

I did update the above just in case that wasn't obvious.
May I ask. Who is They? The police, they government?
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Right, who are they? Because all I see are the critics who never ran or used our ported manifolds whether factory or aftermarket. We don't hold any value to opinions from people that's criticizing parts from us they have never seen, used or tested in person. We have people sending us parts ported by other people to get ported to our specs yet those same other porters criticize our work lol. How come no one bother testing their ported parts to a aftermarket manifold? Lol
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What would be interesting is a 330 cfm TFS R box with no reverse taper against the stage 3 plus 330 cfm Cobra. That would be educational for many here.

A cfm number means little in itself. Just ask Joe’s Porting on speed talk about his 450+ cfm first gen small block Chevy heads. Flow bench loved them. Engine did not.
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