| clubae111.com is the largest community forum of English speaking AE111 owners on the internet today with over 2000 members plus a wealth of information and resources relating to the AE111 chassis and 4A-GE engines. Join our community today! If you're already a member please log in to your account to access all of our features: |
| after market vs standard extractors | |
|---|---|
| Tweet Topic Started: Jul 2 2008, 06:36 AM (291 Views) | |
| brentz-r | Jul 2 2008, 06:36 AM Post #1 |
|
Stage 2
|
looking to buy some after market extractors anybody got and recommendations on brands and where to buy em etc or am i best to find something else to spend my money on . any tips on how they go against the standard ones? huge difference? |
![]() |
|
| AceSniper | Jul 2 2008, 06:48 AM Post #2 |
![]()
Global Moderator
![]()
|
not that much gain, can get good gains for cheap by re-making the 2-1 pipe then spending the rest else were |
![]() |
|
| BZ-G | Jul 2 2008, 07:06 AM Post #3 |
|
aka Hyper Rev 4...
|
well if you increase "huge" power from the engine then yeah the aftermarket extractors will help the flow of the exhaust and thus gain power... but, if you only have stock engine and change the extractors then yes there will be gains but very little... unless if you change the whole air filter intake and the whole exhaust system then there will be hp gains since more air into the engine and more air out the exhaust will gain hp.... |
![]() |
|
| brentz-r | Jul 2 2008, 07:41 AM Post #4 |
|
Stage 2
|
i got a cat-back system now if i add extractors and de-cat would i see a subtancial gain ? |
![]() |
|
| chiksluvit | Jul 2 2008, 08:12 AM Post #5 |
|
[OO\_____/OO]
|
in short no i've got hks racing headers a metal cat and full catback, and i can tell u the gain doesnt justify the amount of money spent just redo the Y pipe, and it should be good if you do get the extractors though, you'll be able to start maximise the benefit from those aftermarket extractors with bigger cams and ecu again its all about balance Edited by chiksluvit, Jul 2 2008, 08:16 AM.
|
![]() |
|
| Wolftown | Jul 2 2008, 02:58 PM Post #6 |
|
Stage 5
|
Are you talking about butchering out the big flaps inside the 2-1 of the manifold? Was thinking of doing this a while back, much work involved?? |
![]() |
|
| chiksluvit | Jul 2 2008, 06:29 PM Post #7 |
|
[OO\_____/OO]
|
actually i was referring to the pipe section where 2 goes into one... replace that ugly bit of kit it was very badly manufactured and some gains can be had by replacing it with proper mandrel bent pipes as for the tabs/flaps, they're located at the 2 end of the 4-2 section, i honestly dont think its that much of a big deal, taking it out or not won't really affect it much, i think depending on how big the tabs/flaps are, if each of them fully isolates 2 cyls, then don't take it out, its there to aid smoother exhaust gas flow and reduce turbulance.. i do remember seeing it when i was changing the extractors, but didnt pay much attention since i was changing it to hks racing headers anyway actually while getting the 2-1 section remade, i'd also highly recommend heat wrapping the stock extractors, all the way from the 4-2-1 til the cat i had that done before going hks racing headers, from my impression, i could feel the engine was a lot more responsive througout the revs, especially low- midrange in case if anyone is concerned, heat wrap doesn't kill the extractors, my stock extractors were wrapped for about a year and it was still fine til the day i took it out, my current extractors have been wrapped since day one and it's also still ok, not a single crack just don't paint the wrap, it makes the wrap brittle over time |
![]() |
|
| brentz-r | Jul 3 2008, 01:12 AM Post #8 |
|
Stage 2
|
cool thanks that helps. but when you say get the 2-1 section remade what do you mean ? |
![]() |
|
| BZ-G | Jul 3 2008, 02:53 AM Post #9 |
|
aka Hyper Rev 4...
|
means that, making the pipe bit larger in size at the place where it kinda bends a bit near the end of the 2-1 piece, kinda near the sub frame area and the cat area, since that area of the pipe is kinda bit squashed in... cut that piece and reweld a nicer round pipe.... all in all, any exhaust or extractor will increase bit of power and response but as chiksluvit said, for what you pay on those parts, they don't produce a lot of hp gain for what you pay for them... our n/a engine needs a lot of money spent to make any huge power differences... but if you just continue to add and spend money on performance parts including engine internals then yes hp gains will slowly add up.... but money slowly gone... this is the link regarding another member here removing those flaps in the 2-1 section... http://s15.zetaboards.com/AE111_Forum/topic/132000/1/#new |
![]() |
|
| brentz-r | Jul 3 2008, 03:08 AM Post #10 |
|
Stage 2
|
cool thanks be my weekend job
|
![]() |
|
| BZ-G | Jul 3 2008, 03:40 AM Post #11 |
|
aka Hyper Rev 4...
|
i remember there was a post/topic around here which showed someone changing the 2-1 section of the pipe... i mean cutting the "squashed" pipe area and welding another piece together.. but can't find it and don't remember who did it... anyway know...???
|
![]() |
|
| chiksluvit | Jul 3 2008, 05:01 PM Post #12 |
|
[OO\_____/OO]
|
hi guys i originally posted this heatwrap information in another thread. for ease of search, and further the discussion, i'd just quote myself and double post it here.. since it's a bit off topic in the other thread. in addition, i would actually recommend to just get that 2-1 section totally remade, with mandrel bend, also heatwrapped
Edited by chiksluvit, Jul 3 2008, 05:03 PM.
|
![]() |
|
| 1 user reading this topic (1 Guest and 0 Anonymous) | |
| « Previous Topic · Exhaust / Header · Next Topic » |








2:20 PM Jul 11