Check out this header

[onestopjim]

the 4 into 1 header makes a lot more power than a log header.. I understand TRAIL riders are not to worried about the extra power but someone that is racing may....


jim

 

[Ted Jannetty]

the 4 into 1 header makes a lot more power than a log header.. I understand TRAIL riders are not to worried about the extra power but someone that is racing may....


jim

Alot more power I don't agree

More Power I agree.

But how much that is the question?

Only a back to back Dyno session will tell the story.

Turbo Motors don't rely on Scavenging that a N/A motor does.

The exhaust of a Turbocharged Engine almost always operates with back pressure much higher than N/A motors.

In fact 2:1 is not uncommon, that's 2 lbs exhaust pressure to 1 lb. intake manifold pressure, Optimum would be 1:1

It has been proven millions of times that a log manifold will spool the turbo harder and faster and this can be a real advantage.

I am not claiming this, it is a fact.

Yes there is a small advantage but all tubes must be of equal volume, Length and bends, the space constaints will not allow this unless you do what I did on my Prostock RX1, central mount the turbo and cut the frame.

The header in question does not achieve that so what's the point.

Ted.

 

[TurboJamie]

the 4 into 1 header makes a lot more power than a log header.. I understand TRAIL riders are not to worried about the extra power but someone that is racing may....


jim

Sounds like a direct stab at Ted's new header.

 

[onestopjim]

the 4 into 1 header makes a lot more power than a log header.. I understand TRAIL riders are not to worried about the extra power but someone that is racing may....


jim

Alot more power I don't agree

More Power I agree.

But how much that is the question?

Only a back to back Dyno session will tell the story.

Turbo Motors don't rely on Scavenging that a N/A motor does.

The exhaust of a Turbocharged Engine almost always operates with back pressure much higher than N/A motors.

In fact 2:1 is not uncommon, that's 2 lbs exhaust pressure to 1 lb. intake manifold pressure, Optimum would be 1:1

It has been proven millions of times that a log manifold will spool the turbo harder and faster and this can be a real advantage.

I am not claiming this, it is a fact.

Yes there is a small advantage but all tubes must be of equal volume, Length and bends, the space constaints will not allow this unless you do what I did on my Prostock RX1, central mount the turbo and cut the frame.

The header in question does not achieve that so what's the point.

Ted.

From a log header to a 4 into 1 that was not near as good as the one this guy is selling. we had to add 23 grams of weight to clutch arms (all arms) DO THE MATH.... I am not tring to bash anyone one.. I was making a statement and LOG type is great for trail riders NOT racing. its all about the velocity and not letting the next cylinder pulse interfear but I am not going school you TED. you bashed this mans header and really its a more powerfull header than yours... your header was built to NOT crack and I respect that...

 

[Need for Speed 2]

wow 23 grams per arm that is like adding ahh Im calculating this as I type Ide say you added about another 100 or so horse. Wow . IMPOSSIBLE from a header alone. Been there done it these headers arent as critical as people try and make beleive but i think this would make for great reading on Dynotechs web page

 

[onestopjim]

TOTAL grams added (to all arms) NOT 1 arm

 

[Need for Speed 2]

Sorry my mistake

 

[Boyko]

Alot more power I don't agree

More Power I agree.

But how much that is the question?

Only a back to back Dyno session will tell the story.

Turbo Motors don't rely on Scavenging that a N/A motor does.

The exhaust of a Turbocharged Engine almost always operates with back pressure much higher than N/A motors.

In fact 2:1 is not uncommon, that's 2 lbs exhaust pressure to 1 lb. intake manifold pressure, Optimum would be 1:1

It has been proven millions of times that a log manifold will spool the turbo harder and faster and this can be a real advantage.

I am not claiming this, it is a fact.

Yes there is a small advantage but all tubes must be of equal volume, Length and bends, the space constaints will not allow this unless you do what I did on my Prostock RX1, central mount the turbo and cut the frame.

The header in question does not achieve that so what's the point.

Ted.

You got me kind of puzzled on a few things here Ted. Can you please explain how a log style manifold is going to spool a turbo faster than one with individual primaries. I know a log manifold has to deal with a big heat rise and thermal expansion in the log as apposed to the heat rise in a collector of a header but that is not going to make your turbo spool faster. From what I understand and as that Fast Jim guy stated you need your exhaust gas to be flowing at extreme velocity, like +Mach 1. The faster it hits the turbine wheel the better. I have made the mistake (I have made lots) of using to large of tubing building headers for turbo applications and ended up with a lot of lag that was not necessary the exhaust looked cool though. Another thing that is a benefit is to have the pulses separated for as long as possible before getting to the turbine, and how it enters the collector in accordance with the firing order, it all helps a little. If a log manifold will spool a turbo faster than anything out there, than by the seat of the pants it is going to feel fast regardless of what the peek HP numbers end up being. Why don’t we see more of them out there if that is the case?

Your header is promised to be a important step forward for a lot of frustrated riders and I hope it all works out like you have planned it to. I appreciate and respect all the time and effort you have put into this project. Keep in mind the guys that are building these kits are smart hard working articulate people that take great pride in there work. They know the problem and have been working on it since there was a issue in there first season. Not a easy one to fix. The best thing is that you are a honorable man that is going to stand behind his product and that is good for all that are looking for a solution to a troublesome costly annoying ongoing problem.

 

[Ted Jannetty]

You have a good theory and I am not going to argue it.

Typically 4 individual tubes have more volume than a log style manifold.

The less volume between the engine and turbine the faster the response.

We recently had a 2 liter factory turbo car here in my shop, The customer insisted he needed a tubular header and that it would make more power.

We are talking about a 325 hp engine turbo combo here which is pretty good, in fact good enough for 11.5 quarter miles in this car.

I did not argue, but just for fun we wanted to see the difference to prove what I already knew to the customer, so we strapped the car to the dyno and made 4 power sweeps in 4th gear from 2000 rpm to red line, Noting where the turbo hit full boost, in this case 3100 rpm

Then installed the tubular header and repeated the test, Keep in mind everything else kept the same, boost. A/F. temps, etc.

The car picked up 11 hp between 5500 and 7000 , and lost spool up, in this case achieved full boost at 3600 rpm.

Now in our case it is not so important because of our transmissions (clutches) and how the engine operates.

I don't want this to turn into an argument of which is better, because a properly designed tubular manifold is far superior.

The Key Word is Properly designed.

 

[ProstockBenji]

I think Ted's header was built to solve a major problem with front mount headers , I doubt very much it will have lag! I'm sure if someone is looking for a race header Ted will gladly build them one also . Great job Ted !

 

[srxguy]

The stock cpr header I took off is not a 4 into 1 either, so I am not worried at all about losing anything with teds header!!

 

[Remmy]

I just picked up the new Alpine Header and unlike my original, this header is a true 4 into 1. They also beefed it up as it's 2 lbs. heavier than the original. Ted's header looks sweet and I would not hesitate to try it out either.

I should note, that I never had any issues with the original, just upgrading for more performance and durability.