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E30 M3 (1986-1991) {Euro 86-892.3L: 200hp @ 6750} {1990 2.3L Evo2/Cecotto/Ravaglia: 220/215/215hp @ 6750} {1991 2.5L Sport Evo: 238 @ 7000} {US -- 88-91 2.3L: 196hp @ 6750, 170tq @ 4750} Total produced: 5,280 US, ~13,300 Europe/world |
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#1 |
Registered User
Join Date: Sep 2015
Posts: 6
Reputation: 0
![]() Location: Thessaloniki
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Hi,
I'm following this forum for very long time, really great forum which have been solving and answering all of my queries.. (almost) hehe Now, I'm on to a project to restore my s14 engine and to perform som tuning with cams, alu flywheel and a generally fresh upp and I got the idea and interrest to fit open velocity stacks to it? its not a daily driver and I know the consequences of running open ITB's so lets not go into that. I have been searching a lot and haven't find anybody do that installation, can anybody here direct me to a thread with this mod? or have you any experience of it, will work or not on an s14? |
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#2 |
Registered User
Join Date: Jul 2011
Posts: 1,415
Reputation: 0
![]() Location: DC Metro
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Have you looked over on s14.net?
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#3 |
Registered User
Join Date: Sep 2015
Posts: 6
Reputation: 0
![]() Location: Thessaloniki
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#4 |
Registered User
Join Date: Jun 2004
Posts: 614
Reputation: 0
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if you have Alpha-N then yes you can run open trumpets
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#5 |
Registered User
Join Date: Sep 2015
Posts: 6
Reputation: 0
![]() Location: Thessaloniki
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#6 |
Registered User
Join Date: Jun 2004
Posts: 614
Reputation: 0
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most people use an airbox because its a better idea in terms of filtration and feeding the engine cold air. different volumes can also improve power and torque compared to open trumpets
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#7 |
Registered User
Join Date: Sep 2015
Posts: 6
Reputation: 0
![]() Location: Thessaloniki
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I have been searching and searching without any succes of this mod. Everybody is going with the airbox and Alpha-N system..
So because if i dont try it I will go crazy so after some more research I finally took the desiscion to invest on an HallTech stand-alone ECU and I'll get the trumpets manufactured at a machine shop.. I dont know yet how long the trumpet will be to make it work so Ill manufacture to different lengths and try.. ![]() ![]() |
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