I never doubted it. I thank Sean for the test! Just stating the facts that usually it takes more than one test to prove what is the best.

My manifolds have went through more test comparison than any one manufacturer out there. I put DI company on the line time after time again. Provided one of the best customer service and have some of the fastest evos using DI manifolds. I will still say we have the best 8-injector twin rail intake manifold manifold money can buy!

 

dang! i already got a magnus v5... i havent put on my car yet. i hope it does good in these tests. if not, im gonna be pissed! LOL good work sean.

 

awesome work sean. as noted above the results do have value. as much as it is difficult to test manifolds back to back when they are not immediately available to test we should thank Sean for the time and effort he put into the test.
it does shed light on some of the intake design factors that determine their performance. the DI manifold is a purpose built manifold and can be made to whatever your specs/needs be and the AMS manifold is off the shelf and thus would not be be best for every set up. i agree that the larger intake plenum version of the DI would probably perform better... so many choices so choose wisely.

 

Awesome work on testing sean!!!

Im happy to say you did the tests very well and I dont see margin for error if there is any.
The results speak for themselves, both are great manifolds and like DI pointed out there plenum is the small version.

 

Nice work Sean.

Some of the comments in this thread crack me up, haters everywhere. I agree with them though, it's nice to see a good honest guy doing the testing, especially since YOUR RESULTS FROM YOUR TESTING HAVE BEEN THE SAME AS MINE WERE and the other link posted one page back on the intake bought from us to test against a stock one WERE ALSO THE SAME RESULTS I SAW. So if in anyway the "honest guy" BS was directed at my testing someone needs to check their data.

This intake testing is a tough game, what you are getting for results are exactly what I saw, just as you and I have been discussing the last few weeks. I have not tested the F1.

The volume of the plenum plays a large roll in making power, since you are tuning a stroker and doing the testing on a stroker (a BR engine I might add) the smaller plenum DI intake would take a hit on power up top for sure. That small plenum was from our testing here and Tom built those based on the 2 liter testing we did. DI's normal intake with the much larger plenum would be a much better choice for that 2.3.

I hope you test the new Magnus cast intake, it will be nice to see more of your results that match mine.

Carry on haters.

 

good job, sean ,great testing by the way keep up the good work ams power +1

 

Good clean test. Costs are similar, but the DI manifold keeps the TB in the same position.

To DI, if you knew this was to be tested on a 2.3 why didnt you offer up the large plenum instead?

 

Sean Ivey needs to conduct a clinic on how not to get burned in Vendor Wars, because he seems to have discovered the secret

 

X2

 

Truth.

Scorke

 

Ivey is very non confrontational.. He knows how to keep his cool.. Unlike some of us..

Mike

 

Because thats what we had on the shelf at the time and the test was supposed to be done within few days. I was supposed to be there for the test but never even got a call and i found out about the results on here.

I do have large plenum manifold just unsure if it will get tested against F1 again. That is completely up to Sean and the customer.

DI manifold keeps TB in close to stock location- no need for new UIP. Also all of the fittings and map sensors are in close to stock location.

As i said it before we are still happy with the results. Small plenum definitively has much better response than the large one. Its not only about the peak HP but a well designed all around manifold, that provides a good responsiveness, spool, under the curve power.

 

Those raised inlets can also wreck all kinds of havoc on the airflow distribution though. Also, if the plenum doesn't accommodate the additional flow area they can provide, you won't see gains from them and may see losses. AMS has done a good job on both of these aspects.

The AMS also uses a tapered runner profile where I don't think the DI does?

And runner lengths may be different.

 

All of our runners are tapered and we use some of the longest runners amongst all of the manifolds.

Also the reason why our plenum and TB is offset from the the runners is to provide even flow to all of the runners.

 

lol...have you seen the size of that man! I think his fist is the size of my head...


I do agree with Micheal..he is not only a giant, he is smarter then 99% of us in that department.