Here it is. An independant dyno test of the AEBS vs. ITR intake manifold. My car was tuned about 2 weeks ago, no changes have been made since then. The ITR manifold I had was match ported on the runners and throttle body side. The motor is a poor man's type-R, 12:1 CR, ported/polished B16a head. Some fuel pressure tuning was done with the AEBS manifold, thats it. Here are the results.



Almost 6hp in the midrange at one point and 2-3 hp across the board. Torque is higher at every point as well.

 

Looks like it is still worth it. We need to get some runs done on the same day. Anyone have a manifold they want to let me borrow? I'll go to DSR and see the gains for myself.

 

id say it is.. buy the AEBS for 160, and sell the ITR mani for 200.

but now that no one would probably buy it.. it might be junk

 

I have and will sell the ITR manifold for 200. Any takers?

 

If I can make $40 out of the deal and get power gains, I'll sell mine

 

IN

 

Awesome Also something to note is that the ITR manifold he was comparing against was port matched which makes it even better for those of us with non modified ITR manifolds. For the price I say its a great buy.

Edit: Just noticed there were fuel pressure changes made. This could effect the results.

 

One thing that I would like to know is, how much closer does the AEBS manifold sit to the firewall than stock?

I have my catch can between the firewall and the IM on my ITR.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ActiveAero &raquo;</TD></TR><TR><TD CLASS="quote">Edit: Just noticed there were fuel pressure changes made. This could effect the results.</TD></TR></TABLE>

Very good point.

 

how come everyone says they are gonna test it with NO CHANGES, yet every dyno chart ive seen so far it says "no changes EXCEPT blahblahblah". cant anyone just do a back to back test to see the actual results?? fuel pressure changes dont sound like much but they can GREATLY alter performance. fuel tuning is key to making power, and in a test like this, fuel changes throws everything out the window and its no longer just a back to back test.

Im still interested in seeing results on a moderately upgraded ITR motor.

 

I want to see stock ITR vs AEBS, no tuning, nothing different, back to back, three runs on each and average the gains.

 

also remember guys: this manifold does not accomodate your evap purge hose.

i'd wait till AEBS makes a product that actually works correctly with our cars.

 

I just saw a post and dwn-shift.....i think that's the name is selling the satin one for 150 shipped. So that is ******* sweet!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jdmspoonitr &raquo;</TD></TR><TR><TD CLASS="quote">I just saw a post and dwn-shift.....i think that's the name is selling the satin one for 150 shipped. So that is ******* sweet! </TD></TR></TABLE>

Yeah.. Don't forget to get that intake insulating manifold gasket too since you'll be taking off the intake manifold anyway!

 

Glad to see you gained some more hp/tq, congrats

 

You have 12:1 cr and ported head, making only 185/13x tuned? What cams? These may all be relevant to making more power with this manifold.

What kind of fuel adjustments were made?

 

I will save my sarcastic comments for later.

Glad that the aebs intake manifold worked out for you.

this intake manifold is very pimp.

some more gains can be made if the intake manifold was smoother on the inside too

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chris N &raquo;</TD></TR><TR><TD CLASS="quote">also remember guys: this manifold does not accomodate your evap purge hose.

i'd wait till AEBS makes a product that actually works correctly with our cars.</TD></TR></TABLE>

go get a vaccum T and problem will be solved.

is that really such bad of a thing for you not to buy the part?

I can think of many other parts that dont work correctly. but come from big reputatble companies: mugen, tein, etc...

this is a "race" part, and most race cars could care less about evap.
it wouldnt have been to hard of them to put an extra fitting for it. but they didnt, and I doubt they will change it within the next couple months.


Modified by Bob-DC2 at 11:09 PM 9/11/2003

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chris N &raquo;</TD></TR><TR><TD CLASS="quote">also remember guys: this manifold does not accomodate your evap purge hose.

i'd wait till AEBS makes a product that actually works correctly with our cars.</TD></TR></TABLE>

Exactly. Once they do that, I'm in for sure.

 

Full Setup:
B18C1 block w/ JE 11.5:1 Pistons, milled head .012, 12:1 CR, B16a head, mildly ported, CTR Cams, ITR valvetrain, Portflow retainers, stock crank, rods (arp rod bolts and head studs), custom cold air box, JDM DC 4-1 header, APEXi N1 exhaust, AEBS IM, Hondata IM gasket, B&M FPR, Prelude 290cc injectors, VAFC, Kenji Spec P28.

There is nothing too extravagant about the setup. I was hoping to pull 200hp out of this motor, but it looks like it won't happen, maybe with a better header. Also, I am in Tucson, and its still pretty damn warm here along with elevation.

I wasn't running the EVAP purge anyway, so it wasn't a big deal for me not to connect it. If I want to, I can just tee off the PVC hose in the future. I'm happy with the purchase. Basically I am breaking close to even. The labor is free since I do my own work. I did a previous comparison with no adjustments and I still picked up 1-3 hp and torque over my previous best run. The temperature and conditions were basically the same, very little in change. Since it seemed as though my A/F was off now that the motor had more air, I saw it necessary to add more fuel through fuel pressure only. NO changes were made to the VAFC


Modified by AzSi22 at 11:22 AM 9/12/2003


Modified by AzSi22 at 11:22 AM 9/12/2003

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bob-DC2 &raquo;</TD></TR><TR><TD CLASS="quote">I will save my sarcastic comments for later.

Glad that the aebs intake manifold worked out for you.

this intake manifold is very pimp.

some more gains can be made if the intake manifold was smoother on the inside too</TD></TR></TABLE>

Yes, it is a bit rough on the inside. I didn't want to change anything before installing it, so I installed as is to see the results. I may pull it off again to clean up the inperfections. Overall, I am happy

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tommy_Gunns &raquo;</TD></TR><TR><TD CLASS="quote">One thing that I would like to know is, how much closer does the AEBS manifold sit to the firewall than stock?

I have my catch can between the firewall and the IM on my ITR.</TD></TR></TABLE>

It actually isn't that much longer, so its maybe 1/2" closer to the firewall. I think internally its different than the ITR, so thats is the main difference in runner length. The plenum is also MUCH larger and holds much more volume than the ITR.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">Overall, I am happy</TD></TR></TABLE>


Thats good to hear, so are you planning to get it polished inside the runners?

 

I'd like to send it out somewhere like DPR for the porting, but I may just get the dremel out to clean it up.

 

Hows the throttle response?

 

Seems much better actually. The limited amount I drove the car today, it felt much better with less throttle daily driving wise.