Intake Manifold Test
Just some food for thought These cats came out with the great idea of additional stock intake modifications including removing the stock dog leg on the end of the unit which is an accomidation to right hand drive which we dont need
Also they put on twin injector bungs which many dont need but a nice touch perhaps for those on E 85

Apparently this prototype never has seen production
I just became an APS dealer for the Subaru line and was looking this unit over in the product line and thinking I would love to try one on my Evo
Al
on our left hand drive cars the runners can be straight and direct into the head
S2kracka care to explain?
The OE part does a great job with distribution with all the runners having various length, volume and taper. With the exception of the Wilson Manifolds v2, none that I have seen have had any corrections to balance distribution.
We are building v2.3 now, that’s four generations including the prototype ... Why? because we don't sit back on past achievements we look forward. It looks like most of the data provided was from the original prototype, strong out of the box, but not at the level of the current v2.3.
Most if not all aftermarket intakes cast or fabbed have little or no finish work done. Why not?
ask your vendor and be prepared to get plenty of theory, very little fact, and alot of BS.
The last I checked the Wilson Manifolds v2 in all of it's versions are leading the way into the single digits. So here are facts (OEM modified intake manifolds work), dyno numbers (Some of the highest WHP are running them), and racetrack results (multiple 8,9,and 10 second street cars along with record setting time attack cars).
You can buy any intake manifold you want, but if you want a balanced, fully finished intake manifold built by people who's only job is developing intake manifolds for every major racing series look no further than the Wilson manifolds v2.3
Before all the haters chime in. I was told here on EvoM if you think you can design a better intake do it. I did, now where are everyone else’s?
The OE part does a great job with distribution with all the runners having various length, volume and taper. With the exception of the Wilson Manifolds v2, none that I have seen have had any corrections to balance distribution.
We are building v2.3 now, that’s four generations including the prototype ... Why? because we don't sit back on past achievements we look forward. It looks like most of the data provided was from the original prototype, strong out of the box, but not at the level of the current v2.3.
Most if not all aftermarket intakes cast or fabbed have little or no finish work done. Why not?
ask your vendor and be prepared to get plenty of theory, very little fact, and alot of BS.
The last I checked the Wilson Manifolds v2 in all of it's versions are leading the way into the single digits. So here are facts (OEM modified intake manifolds work), dyno numbers (Some of the highest WHP are running them), and racetrack results (multiple 8,9,and 10 second street cars along with record setting time attack cars).
You can buy any intake manifold you want, but if you want a balanced, fully finished intake manifold built by people who's only job is developing intake manifolds for every major racing series look no further than the Wilson manifolds v2.3
Before all the haters chime in. I was told here on EvoM if you think you can design a better intake do it. I did, now where are everyone else’s?
Last edited by Indy Evo; Jan 29, 2009 at 10:56 AM.
Dynoflash, that APS intake is very interesting. I like what I see there. They never produced that? The only down side to APS is the cost but I'd like to get my hands on that part and try it.
Indy, well said. Now where's my V2.3?!
Indy, well said. Now where's my V2.3?!
i will have to copy the magazine paper out of one of my evo magazines and post the difference between the stock manifold and the magnus, wilson, etc.
you guys jaw will drop from the power loss of an intake manifold.
you guys jaw will drop from the power loss of an intake manifold.
To date I can't remember one magazine test that included a Wilson Manifolds v2 intake. Please post up the info you have asap. If it is from D Sport you are a little late, and it did not include the Wilson Manifolds v2.
Last edited by Indy Evo; Jan 29, 2009 at 08:42 AM.
The cost of the unit - with fuel rails provided - and the option for single or double injectors at our choice would be approx 1/2 of the other similar options available given our dollars strength the Australian goods are very inexpensive
I will PM you some data
I'm working with a company in developing a modified stock intake manifold and when we flowbenched a stock unit we noticed a fairly decent imbalance in the runners. Our new prototype unit did significantly even out the flow so I'm hoping for good results once we get it on the dyno next week. Out of curiosity, did you flowbench a stock intake manifold, and if so, mind sharing your results? I'd also be great if you could share your results for the v2 but I'm not sure how much info you want to give away. I'll post all our findings next week assuming this thing actually works and makes power.
Since previous results have been brought up and the fact that the Wilson V2.0 and DI were tested 4 months after the Kansai and the Hypertune, I thought it would be interesting to graphically show the tested results. Again, the temps were much warmer for the DI and the Wilson AND of special note is the fact that the Tilton clutch was slipping during the Wilson V2.0 test. Also, both of the June tests on the DI and Wilson manifolds were stopped at 7300 rpms, which would account for some of the whp differences at 7500. How much power difference did the 3" TB make over the 65 mm TB? Who knows, that gives some room for debate, but, I'm certain, beyond any doubt, that had the clutch not been slipping, the Wilson V2.0 (original version) would have held on to it's power advantage throughout the entire pull. Also, the latest versions of the Wilson Manifold that is currently being sold is substantially improved over the tested prototype. The rpm whp winner is bolded in each column, with exception of 7500, since two of the manifolds numbers were posted at 7300. All data used were from previously posted dynographs, with the Wilson and DI's numbers being also directly transcribed from posted numbers. In the end, it's up to the purchaser to pay close attention to each and every detail and determine how these details and variations would affect their own results. Just my 3 cents worth.

I forgot to post these quotes from the original tests. Interesting.

I forgot to post these quotes from the original tests. Interesting.
So as the world knows I am going to be doing an intake manifold shootout of sorts. I am not doing a lot of them. I don't have the time or desire to test every single intake that is on the market. I would like to find something worth some additional power over the stock ported unit we are running though.
......I will be comparing them to the ported stocker with our 65mm throttle body on it.
...... This was in no way started to take away the spot light from Paul's (ifarted) testing that he is doing. ...
Thanks for reading.
......I will be comparing them to the ported stocker with our 65mm throttle body on it.
...... This was in no way started to take away the spot light from Paul's (ifarted) testing that he is doing. ...
Thanks for reading.
EvoPooPoo, there is always controversy over how testing is done. I will even go out on a limb here and say if ifarted and myself test the same intake manifolds we are going to get different results.
As for any negative comments that are in this thread now, I am ignoring them. I don't care to argue about this **** anymore.
The last testing I did I got some BS comments so I kept the information mostly to myself.......the haters are overtaking the good information. The more hate I get, the less I post, it's quite good for me and our direct customers, they will continue to go faster from all the testing
Have a nice day.
As for any negative comments that are in this thread now, I am ignoring them. I don't care to argue about this **** anymore.
The last testing I did I got some BS comments so I kept the information mostly to myself.......the haters are overtaking the good information. The more hate I get, the less I post, it's quite good for me and our direct customers, they will continue to go faster from all the testing
Have a nice day.
Last edited by 9sec9; Jan 29, 2009 at 01:47 PM.
Just a few examples of real world results. Yes we did flowbench testing, and I'm done giving away info. The v1 worked out of the box and so did the v2 in all configurations. We don't guess, we know what works.
1. Mike@ AWDMotorsports, 12/14/2008, AWD / Buschur, 2005 RS Evo 8 ,Buschur Racing 2.0L, Precision 6262 Turbo E-85, Wilson Manifolds V2, 5.801@122 / 8.981@156.08 60':1.404, 1.37 best Crispeed-Tuner, Cwilll-Driver
World's Quickest Street Evo
2. David Buschur, 9-13-08, Buschur Racing, 2004 EVO8 RS, BR2.0L GT35'ish, Wilson Manifolds V2, 5.886@???, 123.55 / 9.041@159.64 9.721@144.81 60':1.40 WORLD'S FASTEST DAILY DRIVEN EVO
3. OKIX, 10/13/2008, Buschur Racing, 2006 Evo IX, BR2.0L / Test Turbo, Wilson Manifolds V2, 5.883@124.41 / 9.20@157.63 , 157.90 mph, FP-RED 9.57@ 145.16 MPH - WORLD'S QUICKEST AND FASTEST STOCK APPEARING TURBO 60':1.41
1. Mike@ AWDMotorsports, 12/14/2008, AWD / Buschur, 2005 RS Evo 8 ,Buschur Racing 2.0L, Precision 6262 Turbo E-85, Wilson Manifolds V2, 5.801@122 / 8.981@156.08 60':1.404, 1.37 best Crispeed-Tuner, Cwilll-Driver
World's Quickest Street Evo
2. David Buschur, 9-13-08, Buschur Racing, 2004 EVO8 RS, BR2.0L GT35'ish, Wilson Manifolds V2, 5.886@???, 123.55 / 9.041@159.64 9.721@144.81 60':1.40 WORLD'S FASTEST DAILY DRIVEN EVO
3. OKIX, 10/13/2008, Buschur Racing, 2006 Evo IX, BR2.0L / Test Turbo, Wilson Manifolds V2, 5.883@124.41 / 9.20@157.63 , 157.90 mph, FP-RED 9.57@ 145.16 MPH - WORLD'S QUICKEST AND FASTEST STOCK APPEARING TURBO 60':1.41
Last edited by Indy Evo; Jan 29, 2009 at 02:38 PM.
I hope I didn't come off wrong or seem like I'm trying to snake info out of you, I merely just wanted to help educate the community a bit more. Anyway, like I said, once our testing is done hopefully next week we'll post all our findings.


