#2926295 - 08/18/08 04:28 PM
Re: superchargers
[Re: 08civicsi]
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jeremy0203
Newbie
Registered: 08/13/08
Posts: 7
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i get like 300-325 on a tank usually
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#2926954 - 08/18/08 08:07 PM
Re: superchargers
[Re: jeremy0203]
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NighthawkSiSedan
Major Member
Registered: 02/21/07
Posts: 1454
Loc: Dhaka, Bangladesh
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Yea, if you stay outta boost, the mpg shouldn't change. Just gotta do the foot mod.
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07 FA5 . Nighthawk Black . Xenondepot 5000k HIDs . Sony Bt5000 . Alpine Mrp-m850 . (2) Infinity Kappa Perfect 12's . Comptech SS . Injen Cai . Ingalls ETD . Corsport Cable Bushings . Hondata Reflash . Hondata IMG . Strup RH . [url=www.norotas.com]  [/url] [url=www.norotas.com] [/url]
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#2928546 - 08/19/08 11:00 AM
Re: superchargers
[Re: NighthawkSiSedan]
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AX-NY'06Si
Jr Member
Registered: 09/19/06
Posts: 621
Loc: Southern NY State
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Yea, if you stay outta boost, the mpg shouldn't change. Just gotta do the foot mod.
I don't think you can stay out of boost with a supercharger.
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'06 NBP Si w/ OEM fogs '06 Mazda 3S GT 
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#2949153 - 08/24/08 09:58 PM
Re: superchargers
[Re: AX-NY'06Si]
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NighthawkSiSedan
Major Member
Registered: 02/21/07
Posts: 1454
Loc: Dhaka, Bangladesh
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Pretty sure there is a valve that keeps it from building boost except under load.
_________________________
07 FA5 . Nighthawk Black . Xenondepot 5000k HIDs . Sony Bt5000 . Alpine Mrp-m850 . (2) Infinity Kappa Perfect 12's . Comptech SS . Injen Cai . Ingalls ETD . Corsport Cable Bushings . Hondata Reflash . Hondata IMG . Strup RH . [url=www.norotas.com] [/url] [url=www.norotas.com] [/url]
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#2990452 - 09/06/08 04:51 PM
Re: superchargers
[Re: NighthawkSiSedan]
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zachys
Post Master Jr
Registered: 03/28/06
Posts: 1641
Loc: 191whp 139wtq
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Yea, if you stay outta boost, the mpg shouldn't change. Just gotta do the foot mod.
you're always in boost with a S/C
ok so
im thinking about supercharging my 08 si
but i want to know if there is a major difference in gas the noticed or if its still similar
my buddy sold his cause he now uses 40% more gas
http://www.youtube.com/watch?v=idJwap38xv0
and he bought this instead lol
http://www.youtube.com/watch?v=dgIEJ38iMSM
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 Mods I have = 209whp
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#2991899 - 09/07/08 12:00 PM
Re: superchargers
[Re: AX-NY'06Si]
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Adam G
Post Master Supreme
Registered: 06/07/00
Posts: 59377
Loc: Arrr-Kansas
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Yea, if you stay outta boost, the mpg shouldn't change. Just gotta do the foot mod. I don't think you can stay out of boost with a supercharger.
With positive displacement superchargers (roots, twin screw) you can't, unless there is some sort of bypass valve.
The Eaton supercharger system incorporates a specially designed bypass valve, which is actuated by a vacuum motor near the throttle body, and recirculates the supercharger air flow when boost is not required. During typical driving conditions, the engine is under boost around 5% of the time, which means the remaining 95% of the time the engine is under vacuum, allowing for better fuel economy and a quieter ride.
http://www.capa.com.au/eaton.htm
Dynamic superchargers (centrifugal) build more boost with more rpm's.
http://en.wikipedia.org/wiki/Supercharger
Edited by Adam G (09/07/08 12:05 PM)
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#2996679 - 09/08/08 07:44 PM
Re: superchargers
[Re: HabaneroSedan]
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zachys
Post Master Jr
Registered: 03/28/06
Posts: 1641
Loc: 191whp 139wtq
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my kit came with a bypass valve.
is that really why crack got rid of his car paul?
thats part of it, mostly it was because he wants to buy a house and didnt want a car payment
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Mods I have = 209whp
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#2999847 - 09/09/08 05:42 PM
Re: superchargers
[Re: 08civicsi]
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zachys
Post Master Jr
Registered: 03/28/06
Posts: 1641
Loc: 191whp 139wtq
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zachy you have the evo2 exhaust on your civic ?
how do you like it?
is it extremly loud ?
yep I do, its only loud when i want it to be, ive had the Magnaflow, Skunk2 60 mm and 70mm and settled on the Evo2, its my favorite! woot
without DCRH
http://www.youtube.com/watch?v=ugfDVuLTLXk
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Mods I have = 209whp
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#3000487 - 09/09/08 09:14 PM
Re: superchargers
[Re: zachys]
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The Fleez
Newbie
Registered: 07/27/08
Posts: 6
Loc: lake mary, fl
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zachy you have the evo2 exhaust on your civic ?
how do you like it?
is it extremly loud ? yep I do, its only loud when i want it to be, ive had the Magnaflow, Skunk2 60 mm and 70mm and settled on the Evo2, its my favorite! woot without DCRH http://www.youtube.com/watch?v=ugfDVuLTLXk
okay, well how much did the evo2 cost?
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#3004095 - 09/10/08 06:25 PM
Re: superchargers
[Re: zachys]
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Design
Post Master Supreme
Registered: 12/11/02
Posts: 11569
Loc: The OC
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my kit came with a bypass valve.
is that really why crack got rid of his car paul? thats part of it, mostly it was because he wants to buy a house and didnt want a car payment
It's next to impossible to qualify for a loan with a sizeable car payment. And many lenders are requiring 20% down.
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09 CWP MS3 01 Echo 5MT 00 EBP Si - Sold - Pics89 Camaro - Sold CSI. What's your diversion?
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#3006873 - 09/11/08 01:51 PM
Re: superchargers
[Re: The Fleez]
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zachys
Post Master Jr
Registered: 03/28/06
Posts: 1641
Loc: 191whp 139wtq
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zachy you have the evo2 exhaust on your civic ?
how do you like it?
is it extremly loud ? yep I do, its only loud when i want it to be, ive had the Magnaflow, Skunk2 60 mm and 70mm and settled on the Evo2, its my favorite! woot without DCRH http://www.youtube.com/watch?v=ugfDVuLTLXk okay, well how much did the evo2 cost?
$300 used for 6 months
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Mods I have = 209whp
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#3117921 - 10/16/08 09:23 AM
Re: superchargers
[Re: 08civicsi]
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BubzSI
Newbie
Registered: 07/29/07
Posts: 3
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Boost is fun.
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