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4.0L I6 Supercharger kits 

 

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 Post subject: 4.0L I6 Supercharger kits
Posted: Thu May 12, 2005 12:15 am 
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Just wondering if anyone else besides Capa make em for the 4.0L I6 SOHC? Purely out of interest.

 

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 Post subject: Re: 4.0L I6 Supercharger kits
Posted: Thu May 12, 2005 6:13 am 
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twr7cx wrote:
Just wondering if anyone else besides Capa make em for the 4.0L I6 SOHC? Purely out of interest.


there is a place that fits a positive displacment supercharger to the I6's. The top half of the broadband manifold is removed and the blower sits on top of the lower half of the manifold.

http://www.forcedairtech.com.au/

 

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Posted: Thu May 12, 2005 11:00 am 
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CAPA is the sole supplier of powerdyne and vortechs. Even the people who fit them (APS i think? Herrod?) source them from CAPA.

Could order a vortech/powerdyne elsewhere but you'd be in custom territory or ordering an $800 bracket from CAPA to fit the engine.

Dont stuff around - call CAPA.

 

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Posted: Thu May 12, 2005 4:09 pm 
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4.9 EF Futura wrote:
CAPA is the sole supplier of powerdyne and vortechs. Even the people who fit them (APS i think? Herrod?) source them from CAPA.

Could order a vortech/powerdyne elsewhere but you'd be in custom territory or ordering an $800 bracket from CAPA to fit the engine.

Dont stuff around - call CAPA.


There pretty exy.
Mom's hassling me to sell my bike after the resent string of bike crashes and that around here. It'd leave me with about 5 grand burning in my pocket which isn't really enough for a Capa kit - plus I'd need some extra to sort out the LPG - I reckon I'd aim at going LPG only ditch the petrol. I'm not interested in a turbo because it'd be laggy on the auto and I like my auto, not interested in going manual atm. But after riding around on the bike all day today I dunno if I'd be able to give it up... Such hard choices.

 

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Posted: Thu May 12, 2005 5:06 pm 
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after being in a 9psi capa supercharged car and a 9psi T04 turbo'd car.
both with 3.08 single spinners, both with roughly the same power (190rwkw)
i'd go as far to say the difference in lag wasnt that bad... and with a change to 3.45 in the turbo car is made a massive difference.
but.... supercharger gets a mad sound :D

 

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Posted: Thu May 12, 2005 5:20 pm 
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THere was an advert in Perth Street Car about 6 months ago for a guy who was making up keeps for the 4l falcon for about $3200.
I will check tonight and see if i can find the advert. I dont know how good they are but they are about half the price of the CAPA kit. Obviously not tried and test but not overpriced to go with it.
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 Post subject: Re: 4.0L I6 Supercharger kits
Posted: Thu May 12, 2005 6:12 pm 
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EF 4.9 wrote:
twr7cx wrote:
Just wondering if anyone else besides Capa make em for the 4.0L I6 SOHC? Purely out of interest.


there is a place that fits a positive displacment supercharger to the I6's. The top half of the broadband manifold is removed and the blower sits on top of the lower half of the manifold.

http://www.forcedairtech.com.au/


There even more exy than Capa and they're power expectations are lower (160kw). I presume when Capa claim 200kw they're talking rear wheels.

 

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Posted: Thu May 12, 2005 6:15 pm 
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Posted: Thu May 12, 2005 6:16 pm 
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no, capa talk in FW KW.

 

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Posted: Thu May 12, 2005 6:25 pm 
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Price is s**t - nearly $8000 for a supercharger setup. No thanks.
At that price i would ratherl sign up for a turbo with proper engine management system and new injectors.
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Posted: Thu May 12, 2005 7:08 pm 
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theres two main diffrences in the CAPPA and FAT systems, cappa is centrivical (spelling) and fat is positive!
those two cars the guy spoke about earlyer the turboed and sc one if it had of been a 9psi postive displacement supercharger it would have eat the turbo off the line, and so an so on.

because the cetrivical (spelling) superchargers still are like a turbo they spoller up they are still a blower but the positive is a compresser and is always on boost

 

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Posted: Thu May 12, 2005 7:17 pm 
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Dont agree with the beating turbo bit. Turbos almost always make more power as they do not drain power from the engine to do it. With a supercharger you must give away 15%(im guessing) to make 30% while a turbo is free power as it runs off your exhaust.
The clutch or a high stall will help the turbo get off the line quick or a small turbo will give good low and mid power without the massive top end kick that most people expect.
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Posted: Thu May 12, 2005 8:59 pm 
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MO wrote:
Dont agree with the beating turbo bit. Turbos almost always make more power as they do not drain power from the engine to do it. With a supercharger you must give away 15%(im guessing) to make 30% while a turbo is free power as it runs off your exhaust.
The clutch or a high stall will help the turbo get off the line quick or a small turbo will give good low and mid power without the massive top end kick that most people expect.


Remember that the backpressure in a turbo exhaust system is similar to the boost produced in the manifold... nothing is free in this game.

Turbo/supercharger is a well documented debate. PD/centrifugal also - have a search around.

 

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Posted: Thu May 12, 2005 10:41 pm 
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4.9 EF Futura wrote:
MO wrote:
Dont agree with the beating turbo bit. Turbos almost always make more power as they do not drain power from the engine to do it. With a supercharger you must give away 15%(im guessing) to make 30% while a turbo is free power as it runs off your exhaust.
The clutch or a high stall will help the turbo get off the line quick or a small turbo will give good low and mid power without the massive top end kick that most people expect.


Remember that the backpressure in a turbo exhaust system is similar to the boost produced in the manifold... nothing is free in this game.

Turbo/supercharger is a well documented debate. PD/centrifugal also - have a search around.


They didn't use blowers in F1 when it was allowed they where all turbo..Yes p/d does have good boost down low rpm but quickly looses it in upper rpm...Also blowers have issues with epa more so than turbo's..It's often more a time thing rather than rpm spool with turbo's but there are too many variables in each application..First you don't need lots of power initially at drags as wheelspin is an issue..Turbo's love and go better with higher final drives also..At stalled up auto with GT3040 turbo will easly spin slicks if wanted so there is issue power wise, even on a big-sh turbo like that 1.06 turbine...But realy its horses for courses both can be built to suite what you want..Another slight advantage is turbo's power can be adjusted at the steering wheel...A s/c engine generally needs stronger rotating assembly in upper power levels compared to turbo's..But then again that depends on tune....

 

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Posted: Fri May 13, 2005 12:04 am 
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F1's were supercharged back in the 20's and 30's (yeah a long time ago)
http://www.virtualitalia.com/sports/formula1p1.shtml

 

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