MilSpec Revision 2 Ported Stock Intake Manifold - Testing Completed
Jun 12, 2009, 08:28 PM
#1
MilSpec Revision 2 Ported Stock Intake Manifold - Testing Completed
I have been working directly with Aby at Milspec the last few months and asked him if I could compare his new Revision 2 Ported Intake Manifold with his MilSpec Port-Matched Stock Intake Manifold. Success!!! After finalizing my setup last week I was able to get with Alfred at Tuning Technologies and he kindly set aside a 3-day period to do testing. The hope was to minimize weather factors, fuel factors, etc.
Day 1 - Tuesday June 9: Alfred tunes the current setup on E85 for peak numbers of 508.85whp/424.75ftlbs. The idea is to have a very linear setup for the track without putting too much stress on the stock internals and as always Alfred does this perfectly with 400ftlbs being held all the way to 6654rpm.
Day 2 – Wednesday June 10: MilSpec Port Matched Stock Intake Manifold removed and MilSpec Revision 2 Ported Intake Manifold Installed
Off With the Old:
In With the New - (I did not take pics of the porting for intellectual property reasons, but if Aby wishes to do so, of course he may.) I sprayed the Manifold black before install:
Day 3 – Thursday June 11: Alfred retunes the vehicle with the only change being the MilSpec Revision 2 Intake Manifold. Alfred and I wanted to make this as pure a comparison as possible so he worked diligently to get the boost plot as close as possible on the comparison. After several adjustments and pulls, the boost came into line and peak numbers increased to 519.51whp/426.11ftlbs for peak gains of 10.66whp/1.36ftlbs. Down low, the rev2 stayed right with the port matched stocker up to 5908. At this point the two hit identical numbers and the rev2 stayed on top the rest of the way with gains of 13whp/10ftlbs in certain spots. This time we hold 400ftlbs all the way to 6812rpm
Cross over of power back and forth until 5908 where they both do 467/416. At this point the rev2 pulls away for good.
Car being Tuned:
This graph shows where peak is achieved:
This graph shows where the largest gains are:
Weather Conditions:
Baseline with MilSpec Port Matched Intake Manifold:
Temp = 74.21F
Humidty = 27%
Final with MilSpec Revision 2 Ported Intake Manifold:
Temp = 78.41F
Humidty = 22%
Port Matched IMRev 2 Ported IM
RPM PSI WHP Tq PSI WHP Tq
3500 12 129 195 13 128 192
4000 26 256 336 24 253 332
4200 28 306 382 28 306 382
4500 29 353 412 29 349 407
4600 29 362 413 29 365 416
5000 28 403 423 28 406 426
5500 28 438 418 29 435 416
5908 28 467 416 29 476 416
6000 28 471 413 29 476 417
6500 29 499 404 28 504 407
7000 26 506 379 26 517 388
7500 23 501 351 23 503 352
Data Comparison Graphed:
My pertinent mods are as follows:
Stock ECU
Stock Bottom End
No head work
MilSpec Ported FP Red
MilSpec Ported Exhaust Manifold
MilSpec Rev2 Intake Manifold
MilSpec 65mm TB
MilSpec Ported Invidia O2 Housing
Skunk2 DP
RRE Rally Cat
Cobb Catback
Sparktech COP
PTE 1200cc Injectors
Buschur Double Pumper
Nisei Competition IC
Nisei UICP/LICP
AEM Intake
Kelford 272/272 Cams
Fidanza Cam Gear
Supertech Springs/Retainers
Koyo Radiator
Mishimoto Hose Kit
Synapse Recirc BOV
JDM Map Sensor
Gruppe-S 3-Port Solenoid
ARP Headstuds
Impressions, AKA Butt Dyno:
Overall impressions are good. The car pulls hard all the way to redline and there was no real drop off down low. To be honest, the car has a LOT more in it, but we were trying to completely eliminate all variables and I also want to keep my stock block intact for a few more months pending a build on an extra block I have already begun work on. With more boost the gains would only increase further so, as with everything MilSpec, I am extremely happy with this mod.
Basic Q&A
1. Are the gains huge? No, but this is a ported stocker that, unlike many other ported stockers, has little to no drop off down low, yet still provides steady and consistent increases in power up top. Also, boost levels were kept fairly low so more gains are to be had on my setup moving forward.
2. What is the price? I can't say, but discussion with Aby have led me to believe that is has a pretty high value proposition for those looking for every advantage they can get with little to no trade off.
3. When will it be available? Please PM Aby from MilSpec for availability
The following are comments from the Tuners perspective:
Alfred From Tuning Technologies:
"The best part of this mod is that little to no compromise in spoolup was made in order to achieve the peak and powerband gains explained below. Substantial upward wastegate duty cycle changes in the 4000 to 4500 rpm ranges were necessary to get the boost back in line along with minor to moderate upward changes from 6000 rpm to redline. To me this was an indicator that the new Intake manifold was allowing the engine to consume more boost and running more efficiently. This increase in efficiency and boost consumption translates into the horsepower and torque gains you see in the table Sean provided via the dyno graph breakdown. The R2 manifold also allowed me to safely add another degree of ignition advance from 6500rpms up which also lends favor to my theory that the system is now running more efficiently."
Final Comments:
A special thanks to Alfred and Jenn, the owners of Tuning Technologies in Colton California. This thread is about the MilSpec Intake Manifold, but I can honestly say that I would not be here without them. There have been many setbacks in my Evo life and a few have almost sent me over the deep end, but Alfred has always been there to calm me down, right my path, and provide guidance. A great guy, a great tuner, and I hope a good friend. A sincere thanks to both you and Jen my friend.
Day 1 - Tuesday June 9: Alfred tunes the current setup on E85 for peak numbers of 508.85whp/424.75ftlbs. The idea is to have a very linear setup for the track without putting too much stress on the stock internals and as always Alfred does this perfectly with 400ftlbs being held all the way to 6654rpm.
Day 2 – Wednesday June 10: MilSpec Port Matched Stock Intake Manifold removed and MilSpec Revision 2 Ported Intake Manifold Installed
Off With the Old:
In With the New - (I did not take pics of the porting for intellectual property reasons, but if Aby wishes to do so, of course he may.) I sprayed the Manifold black before install:
Day 3 – Thursday June 11: Alfred retunes the vehicle with the only change being the MilSpec Revision 2 Intake Manifold. Alfred and I wanted to make this as pure a comparison as possible so he worked diligently to get the boost plot as close as possible on the comparison. After several adjustments and pulls, the boost came into line and peak numbers increased to 519.51whp/426.11ftlbs for peak gains of 10.66whp/1.36ftlbs. Down low, the rev2 stayed right with the port matched stocker up to 5908. At this point the two hit identical numbers and the rev2 stayed on top the rest of the way with gains of 13whp/10ftlbs in certain spots. This time we hold 400ftlbs all the way to 6812rpm
Cross over of power back and forth until 5908 where they both do 467/416. At this point the rev2 pulls away for good.
Car being Tuned:
This graph shows where peak is achieved:
This graph shows where the largest gains are:
Weather Conditions:
Baseline with MilSpec Port Matched Intake Manifold:
Temp = 74.21F
Humidty = 27%
Final with MilSpec Revision 2 Ported Intake Manifold:
Temp = 78.41F
Humidty = 22%
Port Matched IMRev 2 Ported IM
RPM PSI WHP Tq PSI WHP Tq
3500 12 129 195 13 128 192
4000 26 256 336 24 253 332
4200 28 306 382 28 306 382
4500 29 353 412 29 349 407
4600 29 362 413 29 365 416
5000 28 403 423 28 406 426
5500 28 438 418 29 435 416
5908 28 467 416 29 476 416
6000 28 471 413 29 476 417
6500 29 499 404 28 504 407
7000 26 506 379 26 517 388
7500 23 501 351 23 503 352
Data Comparison Graphed:
My pertinent mods are as follows:
Stock ECU
Stock Bottom End
No head work
MilSpec Ported FP Red
MilSpec Ported Exhaust Manifold
MilSpec Rev2 Intake Manifold
MilSpec 65mm TB
MilSpec Ported Invidia O2 Housing
Skunk2 DP
RRE Rally Cat
Cobb Catback
Sparktech COP
PTE 1200cc Injectors
Buschur Double Pumper
Nisei Competition IC
Nisei UICP/LICP
AEM Intake
Kelford 272/272 Cams
Fidanza Cam Gear
Supertech Springs/Retainers
Koyo Radiator
Mishimoto Hose Kit
Synapse Recirc BOV
JDM Map Sensor
Gruppe-S 3-Port Solenoid
ARP Headstuds
Impressions, AKA Butt Dyno:
Overall impressions are good. The car pulls hard all the way to redline and there was no real drop off down low. To be honest, the car has a LOT more in it, but we were trying to completely eliminate all variables and I also want to keep my stock block intact for a few more months pending a build on an extra block I have already begun work on. With more boost the gains would only increase further so, as with everything MilSpec, I am extremely happy with this mod.
Basic Q&A
1. Are the gains huge? No, but this is a ported stocker that, unlike many other ported stockers, has little to no drop off down low, yet still provides steady and consistent increases in power up top. Also, boost levels were kept fairly low so more gains are to be had on my setup moving forward.
2. What is the price? I can't say, but discussion with Aby have led me to believe that is has a pretty high value proposition for those looking for every advantage they can get with little to no trade off.
3. When will it be available? Please PM Aby from MilSpec for availability
The following are comments from the Tuners perspective:
Alfred From Tuning Technologies:
"The best part of this mod is that little to no compromise in spoolup was made in order to achieve the peak and powerband gains explained below. Substantial upward wastegate duty cycle changes in the 4000 to 4500 rpm ranges were necessary to get the boost back in line along with minor to moderate upward changes from 6000 rpm to redline. To me this was an indicator that the new Intake manifold was allowing the engine to consume more boost and running more efficiently. This increase in efficiency and boost consumption translates into the horsepower and torque gains you see in the table Sean provided via the dyno graph breakdown. The R2 manifold also allowed me to safely add another degree of ignition advance from 6500rpms up which also lends favor to my theory that the system is now running more efficiently."
Final Comments:
A special thanks to Alfred and Jenn, the owners of Tuning Technologies in Colton California. This thread is about the MilSpec Intake Manifold, but I can honestly say that I would not be here without them. There have been many setbacks in my Evo life and a few have almost sent me over the deep end, but Alfred has always been there to calm me down, right my path, and provide guidance. A great guy, a great tuner, and I hope a good friend. A sincere thanks to both you and Jen my friend.
Jun 12, 2009, 09:23 PM
#3
Nice results Sean.
it's good to see we got similar results....however mine were accross the board....however my results are also calculated, to where you were on a dyno.
the beauty about this port job, it didnt loose any low end power for me & very minor for you
The main goal of this, was not to loose transient response & carry the top end power a bit further
There should be a few more independent tuning / dyno testing results following in ~2 weeks. Alfred will most likely be tuning another R2 mani's as well.
Sean's car is running the stock ecu & stock maf, while i am running a aem ecu.
Thanks for expressing your confidence & review of MIL.SPEC parts & service.
it's good to see we got similar results....however mine were accross the board....however my results are also calculated, to where you were on a dyno.
the beauty about this port job, it didnt loose any low end power for me & very minor for you
The main goal of this, was not to loose transient response & carry the top end power a bit further
There should be a few more independent tuning / dyno testing results following in ~2 weeks. Alfred will most likely be tuning another R2 mani's as well.
Sean's car is running the stock ecu & stock maf, while i am running a aem ecu.
Thanks for expressing your confidence & review of MIL.SPEC parts & service.
Last edited by Aby@MIL.SPEC; Jun 12, 2009 at 09:26 PM.
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Jun 13, 2009, 12:56 PM
#9
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Can we see pictures of the port work? Both MAP and Wilson show us an idea of the level of porting that was done to the manifolds they sell.
This is a great price though. I currently have a port matched intake manifold with my milspec 65mm tb, will I be able to retain that?
This is a great price though. I currently have a port matched intake manifold with my milspec 65mm tb, will I be able to retain that?
Jun 13, 2009, 01:45 PM
#10
in saying that, the map $249- unit is less expensive than mine. If your looking to save some money, then it maybe better to go that route or buschur as well..
i havent seen any moderate boost direct i.m. dyno compares.
I know my results are not as lofty as some other claim, but i do have 2 different compares yielding similar results.
Buschur racing did lots of i.m. testing, but his testing was done with some serious power levels & airflow...You can always count on buschur parts.
The 2 compares above are using fp-reds, 1 with a stock ecu / maf & the other has a aem ecu. I do know that transient response or low end torque wasnt lost in my experience.
I havent driven a car with a wilson or map mani either.... so i cant say how theirs perform.
There are lots of choices out there.... Go with what you feel is best.
otherwise, you can sell your ported im & get 1 of these.
Jun 13, 2009, 02:02 PM
#11
As far as I know, we will not be showing pics of the porting. People have seen enough pics to know what a ported OEM intake manifold looks like.
These are great gains considering:
a) The manifold has not been cut open
b) transient response is not affected
c) no torque/hp loss at lower rpms
d) gains from approximately 5000rpms+
With a MIL.SPEC unit, you are getting INDY and CART level know-how applied to a street vehicle. When Aby was working on the Honda INDY engines, they "discovered" approximately 40 horsepower in the intake manifold. Essentially, you're getting the same high-level thinking/approach as went into that engine program. While the OEM mani is good, the goal was to distribute air more evenly to all cylinders. We think we've done that. And we're glad that we could work with both Sean and Tuning Technologies to get some dyno/tuning results to back up our own.
These are great gains considering:
a) The manifold has not been cut open
b) transient response is not affected
c) no torque/hp loss at lower rpms
d) gains from approximately 5000rpms+
With a MIL.SPEC unit, you are getting INDY and CART level know-how applied to a street vehicle. When Aby was working on the Honda INDY engines, they "discovered" approximately 40 horsepower in the intake manifold. Essentially, you're getting the same high-level thinking/approach as went into that engine program. While the OEM mani is good, the goal was to distribute air more evenly to all cylinders. We think we've done that. And we're glad that we could work with both Sean and Tuning Technologies to get some dyno/tuning results to back up our own.
Jun 13, 2009, 04:36 PM
#12
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They do a lot more work & they also charge a great deal more.
in saying that, the map $249- unit is less expensive than mine. If your looking to save some money, then it maybe better to go that route or buschur as well..
i havent seen any moderate boost direct i.m. dyno compares.
I know my results are not as lofty as some other claim, but i do have 2 different compares yielding similar results.
Buschur racing did lots of i.m. testing, but his testing was done with some serious power levels & airflow...You can always count on buschur parts.
The 2 compares above are using fp-reds, 1 with a stock ecu / maf & the other has a aem ecu. I do know that transient response or low end torque wasnt lost in my experience.
I havent driven a car with a wilson or map mani either.... so i cant say how theirs perform.
There are lots of choices out there.... Go with what you feel is best.
you can send in your unit & I can work on that specific unit if thats what your asking.
otherwise, you can sell your ported im & get 1 of these.
in saying that, the map $249- unit is less expensive than mine. If your looking to save some money, then it maybe better to go that route or buschur as well..
i havent seen any moderate boost direct i.m. dyno compares.
I know my results are not as lofty as some other claim, but i do have 2 different compares yielding similar results.
Buschur racing did lots of i.m. testing, but his testing was done with some serious power levels & airflow...You can always count on buschur parts.
The 2 compares above are using fp-reds, 1 with a stock ecu / maf & the other has a aem ecu. I do know that transient response or low end torque wasnt lost in my experience.
I havent driven a car with a wilson or map mani either.... so i cant say how theirs perform.
There are lots of choices out there.... Go with what you feel is best.
you can send in your unit & I can work on that specific unit if thats what your asking.
otherwise, you can sell your ported im & get 1 of these.
Sounds good. How long will this introductory offer price last?
Jun 13, 2009, 08:58 PM
#13
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i know im on the market now and these definitely are on my list to keep an eye on...good job and i already know i'll be getting a mil.spec throttle body ftw!!!!
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