Begi Intake Manifold
Our straight tube guy works well above 5000 rpm. Adds a nice 5 to 8%. However, about 3 or 4 % is lost between 4,000 revs and 5,000 revs.
I now have more respect for Mazda's intake manifold designer.
I am absolutely certain my next version will work perfectly everywhere, everywhere, everywhere, everywhere............
Corky
I now have more respect for Mazda's intake manifold designer.
I am absolutely certain my next version will work perfectly everywhere, everywhere, everywhere, everywhere............
Corky
4-5yr old thread bump-
So after searching, and finding only a few threads with very little legitimate information (if there is info ive missed please share it with me) I am trying to figure out whether the above manifold mentioned by Corky is the current version, or if a more efficient manifold has been designed.
Also, the description for the manifold listed on the site is very vague in regards to performance of the manifold. You say the lower HP guys will lost HP and that more than 270hp is needed to see gains from the manifold. Where in the RPM range are those gains typically seen? And what sort of gains are we looking at?
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Former Vendor
Joined: Jun 2006
Posts: 1,337
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From: Bell Tuning & Performance
The manifold mentioned by me above, it is not in production. The bent runner manifold.....
The manifold mentioned by Corky, the straight runner, is in production. That is the only one we produce. The gains you will see with the manifold are usually 4500-5000 rpm to the revlimiter. Depending on the engine and modifications, gains are usually 20+ horsepower. We have always tested and seen about a 20 hp gain over a stock intake manifold. That said, I don't have a lot of dyno sheets for this particular part. But I've never seen less than 20 hp.
Hope it helps,
Stephanie
The manifold mentioned by Corky, the straight runner, is in production. That is the only one we produce. The gains you will see with the manifold are usually 4500-5000 rpm to the revlimiter. Depending on the engine and modifications, gains are usually 20+ horsepower. We have always tested and seen about a 20 hp gain over a stock intake manifold. That said, I don't have a lot of dyno sheets for this particular part. But I've never seen less than 20 hp.
Hope it helps,
Stephanie
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The manifold mentioned by me above, it is not in production. The bent runner manifold.....
The manifold mentioned by Corky, the straight runner, is in production. That is the only one we produce. The gains you will see with the manifold are usually 4500-5000 rpm to the revlimiter. Depending on the engine and modifications, gains are usually 20+ horsepower. We have always tested and seen about a 20 hp gain over a stock intake manifold. That said, I don't have a lot of dyno sheets for this particular part. But I've never seen less than 20 hp.
Hope it helps,
Stephanie
The manifold mentioned by Corky, the straight runner, is in production. That is the only one we produce. The gains you will see with the manifold are usually 4500-5000 rpm to the revlimiter. Depending on the engine and modifications, gains are usually 20+ horsepower. We have always tested and seen about a 20 hp gain over a stock intake manifold. That said, I don't have a lot of dyno sheets for this particular part. But I've never seen less than 20 hp.
Hope it helps,
Stephanie
Let's see them.
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Former Vendor
Joined: Jun 2006
Posts: 1,337
Total Cats: -100
From: Bell Tuning & Performance
My server crashed a few weeks ago, and dyno sheets is one of the folders not backed up along with some photos. I will see if I can get the data off the drive. The last dyno sheet that was sent to me, and the one I am looking for, was a friend of Braineak's. Brad? It was a 1.6L, GT2560 running 14 psi - if I remember the details. I know it was posted on the forum back in early to mid 2009.
Stephanie
Stephanie
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yeha this was the before, i know he hit 261rwhp when we went back to the dyno with no other changes:
https://www.miataturbo.net/dynos-tim...261rwhp-35950/
https://www.miataturbo.net/dynos-tim...261rwhp-35950/
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Former Vendor
Joined: Jun 2006
Posts: 1,337
Total Cats: -100
From: Bell Tuning & Performance
Stephanie
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Former Vendor
Joined: Jun 2006
Posts: 1,337
Total Cats: -100
From: Bell Tuning & Performance
We have had a problem finding a quality aluminum foundry here in Texas to do these. The last two foundries sent us crap for castings. I will have to look out of state to see what I can find. We still have the pattern, so it's do-able if I can get around Corky and the foundry does not require pouring more than 10 pieces at a time.
Stephanie
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yeah this was a on 1.6L.
this was a really primative build.
MS1. batch fueling. 550cc Rx7 injectors. Open loop EBC that wasn't working well.
I think this thing had potential for huge gains up top, but he decided to sell it shortly after this.
this was a really primative build.
MS1. batch fueling. 550cc Rx7 injectors. Open loop EBC that wasn't working well.
I think this thing had potential for huge gains up top, but he decided to sell it shortly after this.
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Yeah, It's pretty hard to be relevant in today's technology and marketplace when all the "results" are from 7 years ago using technology most here don't even use anymore because it's outdated and retired.
17psi for 230wtq would get laughed at today.
if they bring the old one back I hope someone does proper, modern, testing.
Kinda hard to spend $700 on a part that may or may not make another 15hp
17psi for 230wtq would get laughed at today.
if they bring the old one back I hope someone does proper, modern, testing.
Kinda hard to spend $700 on a part that may or may not make another 15hp
Last edited by 18psi; Feb 20, 2016 at 03:04 PM.
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Yeah, It's pretty hard to be relevant in today's technology and marketplace when all the "results" are from 7 years ago using technology most here don't even use anymore because it's outdated and retired.
17psi for 230wtq would get laughed at today.
if they bring the old one back I hope someone does proper, modern, testing.
Kinda hard to spend $700 on a part that may or may not make another 15hp
17psi for 230wtq would get laughed at today.
if they bring the old one back I hope someone does proper, modern, testing.
Kinda hard to spend $700 on a part that may or may not make another 15hp
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