Buschur Ported exhaust manifold, how much was YOURS ported?
my ex- exhaust manifold... now i have new setup....
ported more than 1mm, colector gasket matched and the runners are fully ported....
you going to get very good power with the br manifold...
i got 350 whps 23psi, with my manifold, evo 8 turbo ported, turbo back exhaust and keldford cams...., stock intake, stock tb.... 91 octanes...
ported more than 1mm, colector gasket matched and the runners are fully ported....
you going to get very good power with the br manifold...
i got 350 whps 23psi, with my manifold, evo 8 turbo ported, turbo back exhaust and keldford cams...., stock intake, stock tb.... 91 octanes...
Im looking into getting a BR ported manifold, not really sure if I would have to take mine off and send it in or can I just buy one ported and polished? Also no one is posting up prices on how much they paid.
Evolved Member
Joined: Aug 2006
Posts: 1,427
Likes: 4
From: Sag-Nasty, MI
Not trying to jump on any bandwagons_ in fact I'm running a stock ex. mani unported myself, but the Buschur piece has more than likely been tested back to back on the dyno when they were deciding how much to port... if there was more power to be gained when its all said and done they would probably have ported more and charged a little bit more since they usually like to prove everything on the dyno before using it.
With that said, one always wonders if the HTA 73, the Red's and other larger bolt on's could benefit from more porting since they have a larger exhaust wheel...
With that said, one always wonders if the HTA 73, the Red's and other larger bolt on's could benefit from more porting since they have a larger exhaust wheel...
http://www.awdmotorsports.com/burapoexma.html
Just as Mike said, it's not about the size, it's about the smoothing of the problem areas. There are ridges that you port down to smooth radius, and then gasket match the outlet to the exhaust manifold. You can open up the runners more, but it's not worth it. We spent maybe an hour doing my manifold, and it's working absolutely great.
Oh boy...........some of you guys are clueless.
The ported/coated manifold from us is $195 with your core.
Next, porting the exhaust manifold to match the gasket at the head is a HUGE HUGE HUGE mistake, stupid mistake. It does not work and ruins the manifold. The head is NOT as big as the gasket either, hold the gasket up there and look at it. Back in the early 1990's the gasket that was used on the manifolds was the shape of the exhaust port. We use that style gasket to port the head and to port the inlet to the exhaust manifold because that gasket is very close to the actual port size/shape. By porting the manifold inlet to that size it is very closely matched (slightly larger than) the stock exhaust port on the EVO head.
The other end at the turbo is also gasket matched to your gasket and turbine housing.
The other pictures/links all look pretty, great for selling parts but after the initial 2-3" of runner is done and matched to the head there is NO gain from doing the rest. The collector is also smoothed into the runner and rounded off and that is where the rest of the gains come from.
9.5's at 145 mph on our ported manifold. You can polish a turd and make it look good, backing up your claims with actual ET and MPH results isn't something that can be faked.
The ported/coated manifold from us is $195 with your core.
Next, porting the exhaust manifold to match the gasket at the head is a HUGE HUGE HUGE mistake, stupid mistake. It does not work and ruins the manifold. The head is NOT as big as the gasket either, hold the gasket up there and look at it. Back in the early 1990's the gasket that was used on the manifolds was the shape of the exhaust port. We use that style gasket to port the head and to port the inlet to the exhaust manifold because that gasket is very close to the actual port size/shape. By porting the manifold inlet to that size it is very closely matched (slightly larger than) the stock exhaust port on the EVO head.
The other end at the turbo is also gasket matched to your gasket and turbine housing.
The other pictures/links all look pretty, great for selling parts but after the initial 2-3" of runner is done and matched to the head there is NO gain from doing the rest. The collector is also smoothed into the runner and rounded off and that is where the rest of the gains come from.
9.5's at 145 mph on our ported manifold. You can polish a turd and make it look good, backing up your claims with actual ET and MPH results isn't something that can be faked.
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Joined: May 2008
Posts: 435
Likes: 0
From: new york
Oh boy...........some of you guys are clueless.
The ported/coated manifold from us is $195 with your core.
Next, porting the exhaust manifold to match the gasket at the head is a HUGE HUGE HUGE mistake, stupid mistake. It does not work and ruins the manifold. The head is NOT as big as the gasket either, hold the gasket up there and look at it. Back in the early 1990's the gasket that was used on the manifolds was the shape of the exhaust port. We use that style gasket to port the head and to port the inlet to the exhaust manifold because that gasket is very close to the actual port size/shape. By porting the manifold inlet to that size it is very closely matched (slightly larger than) the stock exhaust port on the EVO head.
The other end at the turbo is also gasket matched to your gasket and turbine housing.
The other pictures/links all look pretty, great for selling parts but after the initial 2-3" of runner is done and matched to the head there is NO gain from doing the rest. The collector is also smoothed into the runner and rounded off and that is where the rest of the gains come from.
9.5's at 145 mph on our ported manifold. You can polish a turd and make it look good, backing up your claims with actual ET and MPH results isn't something that can be faked.
The ported/coated manifold from us is $195 with your core.
Next, porting the exhaust manifold to match the gasket at the head is a HUGE HUGE HUGE mistake, stupid mistake. It does not work and ruins the manifold. The head is NOT as big as the gasket either, hold the gasket up there and look at it. Back in the early 1990's the gasket that was used on the manifolds was the shape of the exhaust port. We use that style gasket to port the head and to port the inlet to the exhaust manifold because that gasket is very close to the actual port size/shape. By porting the manifold inlet to that size it is very closely matched (slightly larger than) the stock exhaust port on the EVO head.
The other end at the turbo is also gasket matched to your gasket and turbine housing.
The other pictures/links all look pretty, great for selling parts but after the initial 2-3" of runner is done and matched to the head there is NO gain from doing the rest. The collector is also smoothed into the runner and rounded off and that is where the rest of the gains come from.
9.5's at 145 mph on our ported manifold. You can polish a turd and make it look good, backing up your claims with actual ET and MPH results isn't something that can be faked.
Oh boy...........some of you guys are clueless.
The ported/coated manifold from us is $195 with your core.
Next, porting the exhaust manifold to match the gasket at the head is a HUGE HUGE HUGE mistake, stupid mistake. It does not work and ruins the manifold. The head is NOT as big as the gasket either, hold the gasket up there and look at it. Back in the early 1990's the gasket that was used on the manifolds was the shape of the exhaust port. We use that style gasket to port the head and to port the inlet to the exhaust manifold because that gasket is very close to the actual port size/shape. By porting the manifold inlet to that size it is very closely matched (slightly larger than) the stock exhaust port on the EVO head.
The other end at the turbo is also gasket matched to your gasket and turbine housing.
The other pictures/links all look pretty, great for selling parts but after the initial 2-3" of runner is done and matched to the head there is NO gain from doing the rest. The collector is also smoothed into the runner and rounded off and that is where the rest of the gains come from.
9.5's at 145 mph on our ported manifold. You can polish a turd and make it look good, backing up your claims with actual ET and MPH results isn't something that can be faked.
The ported/coated manifold from us is $195 with your core.
Next, porting the exhaust manifold to match the gasket at the head is a HUGE HUGE HUGE mistake, stupid mistake. It does not work and ruins the manifold. The head is NOT as big as the gasket either, hold the gasket up there and look at it. Back in the early 1990's the gasket that was used on the manifolds was the shape of the exhaust port. We use that style gasket to port the head and to port the inlet to the exhaust manifold because that gasket is very close to the actual port size/shape. By porting the manifold inlet to that size it is very closely matched (slightly larger than) the stock exhaust port on the EVO head.
The other end at the turbo is also gasket matched to your gasket and turbine housing.
The other pictures/links all look pretty, great for selling parts but after the initial 2-3" of runner is done and matched to the head there is NO gain from doing the rest. The collector is also smoothed into the runner and rounded off and that is where the rest of the gains come from.
9.5's at 145 mph on our ported manifold. You can polish a turd and make it look good, backing up your claims with actual ET and MPH results isn't something that can be faked.
Studderin had this conversation here before he was banned from the site. People kept saying that you needed to polish the whole thing, which is not correct. Sales pitches can only go so far, results speak for themselves.
idrinkv8's, well I say sorry to you too because there is more to a part than how pretty you attemp to make it look. Look at the records and the testing. Do these other companies you are comparing the work to have dyno's and dyno sheets to prove what works and what doesn't? How about the track records to also back up the parts? The answer is no.
We've gone to the trouble of flow benching the parts to look for flow even and have done it with the parts bolted to a cylinder head on the bench (which is the only way to check those parts).
Our results speak for themselves. Check my signature.
We've gone to the trouble of flow benching the parts to look for flow even and have done it with the parts bolted to a cylinder head on the bench (which is the only way to check those parts).
Our results speak for themselves. Check my signature.
idrinkv8's, well I say sorry to you too because there is more to a part than how pretty you attemp to make it look. Look at the records and the testing. Do these other companies you are comparing the work to have dyno's and dyno sheets to prove what works and what doesn't? How about the track records to also back up the parts? The answer is no.
We've gone to the trouble of flow benching the parts to look for flow even and have done it with the parts bolted to a cylinder head on the bench (which is the only way to check those parts).
Our results speak for themselves. Check my signature.
We've gone to the trouble of flow benching the parts to look for flow even and have done it with the parts bolted to a cylinder head on the bench (which is the only way to check those parts).
Our results speak for themselves. Check my signature.
How do the coatings hold up? That is one thing i'm most interested in. I would want the black coating of course. I'm one (like i'm sure many others) to do something once so i don't want to have to take it off then get it recoated and stuff. I have seen this on a few different coatings when I was in the honda world. I'm assuming you would guarantee it not to flake/peel/falloff, etc.
I ask because a ported/coated manifold is on my xmas list.
The coating Buschur uses on his ported exhaust manifolds is excellent. Mine is almost 2 years old and it still looks very good. Its no longer as glossy, but there is no flaking or chipping what so ever after 30k of daily-driven street miles including salty Minnesota winters and plenty of touchless car washes.
David - Thanks for the above info.
David - Thanks for the above info.