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      06-08-2010, 03:12 AM   #23
yoonskim
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I'd love to mod this car as well but I will try to stay away from modifying the car this time My others cars were/are all dumped to the ground with coilovers. This is actully my very first car with an NA engine, not FI

I fully agree with teagueAMX, just a simple chip on an FI car (which modifies boost levels and timing in general) usually yields gains of 60~80hp with massive torque gains which you can immediately feel blind folded. Addition of Turboback exhausts or downpipes also create big gains but intakes...not so much :P

Just got a call from my dealer, the car will be ready 2 days earlier than scheduled, this thursday I'm way too excited right now yoohoo~!
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      06-08-2010, 06:26 AM   #24
ChuckB
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Originally Posted by yoonskim View Post
I'd love to mod this car as well but I will try to stay away from modifying the car this time My others cars were/are all dumped to the ground with coilovers. This is actully my very first car with an NA engine, not FI
This engine is NOT NA, it is FI, with variable camshafts [double-VANOS] and variable valve opening [VALVETRONIC]. i think the lack of Performance Chips for this system are due to the complicated computer programming required in that the valves control cylinder filling and not the throttle plate, which is only used to provide vacuum on startup and when the "Limp Home" mode is activated. This also explains why some engines start a bit rough.
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      06-08-2010, 09:43 AM   #25
yoonskim
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I meant FI as in Forced Induction, (no Turbo or supercharger)
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      06-08-2010, 02:07 PM   #26
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Quote:
Originally Posted by yoonskim View Post
I meant FI as in Forced Induction, (no Turbo or supercharger)
Forced Induction is synonymous with super/turbocharging.

Perhaps you meant Fuel Injection?


23i & 30i = N/A (naturally aspirated) + fuel injection

35i & 35is = forced induction (turbocharged) + direct fuel injection
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      06-08-2010, 03:19 PM   #27
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Originally Posted by yoonskim View Post
I meant FI as in Forced Induction, (no Turbo or supercharger)
My bad, I always used NA as carbureted and FI as Fuel Injection [which was mechanical] or the later EFI [Electronic Fuel Injection], might be giving away my age here
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      06-08-2010, 03:20 PM   #28
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LOL, i guess you misunderstood me. I don't know why I put (no turbo).
I exactly meant FI (Turbo/SC) hence "Forced" induction

I was just trying to say that the car I'm picking up (Z4 23i) this thursday is going to be my first NA engine car and not FI as in Forced Induction.
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      06-09-2010, 12:23 PM   #29
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Does the N52 has the Disa system (double air intake resonance)?
If so this is a light version of a FI.

EdP
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