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Old 09-30-2013, 11:26 PM   #76
Dubstar112
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The rocket truly is something special and the layout of the Subaru exhaust literally lends itself to such a device. Fitting a rocket in something with a short tube would be a packaging nightmare.

Im emulating the ability of the WRC fresh air systems the best I can. Using common man parts. I have a goal in my head as to what I want to achieve, and Im thinking the equivalent of peak turbo speed under WOT conditions, or greater than 10 psi in the PRE THROTTLE areas. using IACV to bleed into the engine too..

I don't know anything of the WRC EVO's ability with its fresh air system employed. logic, have you any first hand information regarding what the Mitsubishi WRC anti lag stuff can do?
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Old 10-01-2013, 06:36 AM   #77
tunermt
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While i'm not Logic i can give you some good insight on the mitsu ALS vs the Subi.

Both use a secondary air injection (compressed fresh air injected pre turbine wheel)

The subi's "rocket" is a (combustor) this is the combustion chamber used in jet turbine engines. Lots of good diagrams available for these combustors. (the combustor does a MUCH better job of controlling the EGT's compared to mitsu style system)

Mitsu style secondary air injection also puts the compressed fresh air pre turbine wheel. Combustion then happens right in the exhaust manifold. This style system is FAR simpler and works very well however EGT's are much higher than you may find on the "rocket".

The Lower EGT's (subi) are do to the fact the subi uses a proper combustion chamber vs letting the AF mixture combust in the manifold.

PS. i run the "mitsu style" (standard secondary air injection NO combustor) on my S13
AEM tuned S13 with secondary air injection antilag


Last edited by tunermt; 10-01-2013 at 06:43 AM. Reason: picture
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Old 10-01-2013, 07:22 AM   #78
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Did anybody get a price quote for the rocket from wrcspares?
I have a feeling that the anti-lag that Prodrive advertised with the P2 prototype as daily-driver friendly and lasting the life of the car, was rocket-based.
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Old 10-01-2013, 07:23 AM   #79
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Quote:
Originally Posted by Vlad View Post
Did anybody get a price quote for the rocket from wrcspares?
I have a feeling that the anti-lag that Prodrive advertised with the P2 prototype as daily-driver friendly and lasting the life of the car, was rocket-based.
No it was not rocket based, it was conventional ALS with a throttle kicker.
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Old 12-17-2013, 11:40 PM   #80
vonickman
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Has anyone installed an als in any of the ways shown in this thread on a 2011+ wrx/sti? What about a rom or map using no anti lag 'parts'?
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Old 12-19-2013, 09:17 PM   #81
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I'm using the old style with a throttle kick, make a couple psi. With dbw it would be easier to set up a throttle kick and make it pretty aggressive, but its harder on the valves/turbo than the bypass method.
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Old 07-26-2014, 02:21 PM   #82
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Old 07-29-2014, 10:22 AM   #83
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I haven't had time to read the whole thread so someone may have already asked this question, but would the electric air pump on the newer Subaru be able to push enough air for an antilag. I realize it is limited in volume and pressure but it would make for a very simple system. A tuner like Cobb could set it up to flip the pump on for a second or two if the conditions are correct. Something like under 2800 rpm, under 5 lbs of boost and over 80% throttle.
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Old 07-29-2014, 11:15 AM   #84
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I should really clarify my question before the flaming starts. Yes I do understand what the anti-lag is for and how it works. Yes I do understand that the factory air pump is much too small for a typical secondary air anti-lag system. Obviously it wouldn't work for drag racing or road racing. The question is, could you get 5 to 10 ftlbs of torque increase below say 3000 rpm by getting a little re-burn in the exhaust manifold using the factory air pump.
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Old 01-18-2016, 01:11 PM   #85
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oops double post of the secondary injection video.

I have another little video of Throttle Bypass Antilag on a VR4 Gallant playing in the snow as well just need to find it.

Last edited by tunermt; 01-18-2016 at 01:19 PM.
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Old 02-17-2016, 06:21 PM   #86
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Old 09-13-2016, 01:41 PM   #87
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