I think you dont understand my point.
And yes, it very well might be a waste of money buying a Box R on some combinations. That is basic.
So I’ve got one of these big dogs porting intakes here…
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]()
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.
Attachments
-
1.6 MB Views: 13 -
1.5 MB Views: 11
81 - 100 of 209 Posts
And yes, it very well might be a waste of money buying a Box R on some combinations. That is basic.
Okay so don’t hang me for quoting a show but watching engine masters they did a really cool back to back test with boost and using an intake with 3 different runner length options and have also done it with Holley intake heights. Every intake change did make a noticeable difference. Had I known this I may have gone with a box R instead of my SV 8.2 EFI.
Also take into consideration the runners average flow on that test. Those manifolds did not all have the same static runner cfm flow. The only way you can ACCURATELY determine the effectiveness of different runner lengths is to not change the runners cfm flow while testing. A long runner R manifold flows a tad less than a Box R manifold and once you start porting on either then the flow is once again changed which will change the amount of hp the part can support across the rpm range of the motor. Wave length tuning effects is based off of the initial static flow of the runners. This is why accurate testing is key.Okay so don’t hang me for quoting a show but watching engine masters they did a really cool back to back test with boost and using an intake with 3 different runner length options and have also done it with Holley intake heights. Every intake change did make a noticeable difference. Had I known this I may have gone with a box R instead of my SV 8.2 EFI.
I think most of this or any plans or testing, is the choice we make of the ideal, versus the best we can come up with for a given budget etc. You can mix up all kinds of intakes etc, throw different boost at it, and end up near the same power levels for the given application. Most of these discussions are about hitting the highest power levels or the limits of the parts.
But some have imposed limitations such as the Cobra intake being required for the car. My SUV project is similar, inherent limitations of the exhaust and engine bay space, 4500lbs, street tires, and wanting 500rwhp in a platform that's never reached a documented 400rwhp. I'm planning to use parts that in a Fox Mustang, could hit 700 easily. But rpm limitations and street driveability, AWD and four identical tires, it'll be adjusted to be as reliable as possible. So the parts have to be selected to hit the goals and still meet the needs of a DD.
But some have imposed limitations such as the Cobra intake being required for the car. My SUV project is similar, inherent limitations of the exhaust and engine bay space, 4500lbs, street tires, and wanting 500rwhp in a platform that's never reached a documented 400rwhp. I'm planning to use parts that in a Fox Mustang, could hit 700 easily. But rpm limitations and street driveability, AWD and four identical tires, it'll be adjusted to be as reliable as possible. So the parts have to be selected to hit the goals and still meet the needs of a DD.
no matter the result, you will have something negative to say about the big dog intake. That I understand.I think you dont understand my point.
And yes, it very well might be a waste of money buying a Box R on some combinations. That is basic.
I do too understand. There are quite a few here that have negative things to say but it was all crickets when I had my lower ** up by someone else. Funny how that happened huh. 😆no matter the result, you will have something negative to say about the big dog intake. That I understand.
I hear you, your **** was screwed.I do too understand. There are quite a few here that have negative things to say but it was all crickets when I had my lower ** up by someone else. Funny how that happened huh. 😆
I offered up a tmoss lower in this post but there was no interest. In previous posts I asked Tom if he wanted to include one of his intakes in a comparison since he had so much to say about the big dog intake in previous posts and he said no.
i have never had a big dog intake (came close to ordering) so I have no allegiance to anybody. His work does look nice for the price. i have seen no one who can come close to his prices.
hopefully someone will compare a na combo with a Systemax or similar, but right now all we got is this comparison Which according to some means nothing because there is a supercharger.
hell I’ll do it, big dog, sell me a stage 3 explorer and I will compare it to a basic hci 302 at the track and dyno.
It's several members on here that have already done the comparison against other aftermarket manifolds with our stage 2s and stage 3s, even a track video. One member did a mildly ported Systemax 2 vs our stage 2 Explorer that had electrical issues during the stage 2 run yet ran damn near the same times with not 100% motor conditions. He also posted timeslips in the video.I hear you, your **** was screwed.
I offered up a tmoss lower in this post but there was no interest. In previous posts I asked Tom if he wanted to include one of his intakes in a comparison since he had so much to say about the big dog intake in previous posts and he said no.
i have never had a big dog intake (came close to ordering) so I have no allegiance to anybody. His work does look nice for the price. i have seen no one who can come close to his prices.
hopefully someone will compare a na combo with a Systemax or similar, but right now all we got is this comparison Which according to some means nothing because there is a supercharger.
hell I’ll do it, big dog, sell me a stage 3 explorer and I will compare it to a basic hci 302 at the track and dyno.
We've also done the dyno testing on our own motors using them. You know how it is lol.
I guess we’ll see then?It might, but what does that prove? Perhaps you get more useable power with the "restrictive" intake.
You never proposed anything real to me in a PM or otherwise about how to move forward and who was paying for waht did you? Maybe think about why we would pass on that. Who's paying for what? If you want to bash me, then have a leg to stand on. How about that.........I offered up a tmoss lower in this post but there was no interest. In previous posts I asked Tom if he wanted to include one of his intakes in a comparison since he had so much to say about the big dog intake in previous posts and he said no.
Vena Contracta - that is a little too much imo......
...for myself, I would rather be focused on averages, without any power adder - the highest average air flow of a manifold or cylinder head would get my attention - advertising head flow at .700 does not impress me if my car runs in a class that dictates .500 max cam lift - Real results here : carb 331 running an unported Victor Jr, switched to a TMOSS ported RPM Air Gap same day, at the track, within 1.5 hrs - car picked up 3 tenths & lost 2 mph...only change is better average air flow...
I never once bashed you, you said no And that is what i said.You never proposed anything real to me in a PM or otherwise about how to move forward and who was paying for waht did you? Maybe think about why we would pass on that. Who's paying for what? If you want to bash me, then have a leg to stand on. How about that.........
if you are talking about my response to 945.0’s post, I never mentioned you, I said his intake was strewed. I know you didn’t screw it up, it was your son.
to be clear, I have not bashed you.
screwed not strewed
If you mean you offered up one of our intakes you already had, then that is my mis-read and that's on me. I don't know the name of 945.0 but if it's the intake that was done during my oldest son's (and Matt's brother's) death and burial, then yes Matt screwed up and should have waited longer to finish. We offered to return that one to us at our cost and re-do another. He sent it to a welder before that and so he declined which we understand, and he kept the intake. Then he asked for a replacement lower which we bought and sent to him. Then he wanted a refund on top (not made public). At some point you decide to cut your losses as he had already posted in the forum and the damage to our reputation was already done before a mutual agreement could be settled. We try to stand up and we've had very few true screw ups in about 3500 intakes and even less that were not settled amicably. Help you understand better?I never once bashed you, you said no And that is what i said.
if you are talking about my response to 945.0’s post, I never mentioned you, I said his intake was strewed. I know you didn’t screw it up, it was your son.
to be clear, I have not bashed you.
screwed not strewed
I would like to see anyone with any merit explain to me how reverse taper isn’t crap in an intake manifold. Give it boost baby. According to some, class racing has no innovation. And here we are with a cut and welded reverse taper manifold. Only logical conclusion for me is price.
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.
81 - 100 of 209 Posts
Ford Mustang Forums
A forum community dedicated to Ford Mustang owners and enthusiasts. Come join the discussion about performance, production numbers, VIN decoders, modifications, troubleshooting, power adders, DIY tutorials, and more!
Full Forum Listing
Explore Our Forums
Recommended Communities
