Went back to stock airbox cover, lost HP.
10-27-2006, 01:10 PM
#61
Rennlist Member
Originally Posted by ignomini
I agree with you there. Better flowing cylinder heads, more aggressive cams, and higher rpm equals higher air volume needs. Changing the intake and exhaust makes sense in that scenario.
What we've often seen in the supercharger business is stock intake and exhaust systems flow well enough that changing them has no real effect. However, supply pressurized air, or make other changes to increase air flow capacity of the engine, and then there are additional increases to be had by changing intake/exhaust pieces.
There are exceptions. For whatever reason, Honda (Acura) strangled the RSX Type S. We saw 15-18 more front wheel horsepower simply by changing the intake and adding a header. That was an eye opener.
What we've often seen in the supercharger business is stock intake and exhaust systems flow well enough that changing them has no real effect. However, supply pressurized air, or make other changes to increase air flow capacity of the engine, and then there are additional increases to be had by changing intake/exhaust pieces.
There are exceptions. For whatever reason, Honda (Acura) strangled the RSX Type S. We saw 15-18 more front wheel horsepower simply by changing the intake and adding a header. That was an eye opener.
But, the 1987 Acura Legen would realize a 25HP increase simply by installing headers. The NSX could get an additional 45HP with a whole new exhaust system...
10-27-2006, 01:24 PM
#62
Drifting
Man, can Airboxes be controversial.
In reality, there isn't an airbox mod that you can do that you would ever feel in you ***-O-meter or see on a GPS data logger.
I say...."if you really want to go faster, lighten the car, install a better suspension and add big red brakes".
"All that stuff and a lot of track time will get you much faster than an airbox & muffler upgrade"
ZP44
In reality, there isn't an airbox mod that you can do that you would ever feel in you ***-O-meter or see on a GPS data logger.
I say...."if you really want to go faster, lighten the car, install a better suspension and add big red brakes".
"All that stuff and a lot of track time will get you much faster than an airbox & muffler upgrade"
ZP44
10-27-2006, 03:19 PM
#63
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Originally Posted by Red rooster
ignomini ,
Cute little A series with a Shorocks blower . Now theres a motor .120bhp ?
Geoff
Cute little A series with a Shorocks blower . Now theres a motor .120bhp ?
Geoff
10-27-2006, 03:47 PM
#64
Race Car
Also, for those considering drilling or modifying their airbox, please be advised that for any changes done to the airbox, there must also be a change on the engine tray as to not compromise high speed stability and all around high speed balance.
Engine tray mods and airbox mods must be done in tandem to keep the balance of the car correctly.
Engine tray mods and airbox mods must be done in tandem to keep the balance of the car correctly.
10-27-2006, 04:01 PM
#65
Rennlist Member
Originally Posted by ZombiePorsche44
...In reality, there isn't an airbox mod that you can do that you would ever... see on a GPS data logger...
10-27-2006, 06:42 PM
#66
Deer Slayer
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It may be worthless, but apparently there's plenty of folks out there who are willing to spend 175 bucks to Fabspeed for some carbon fiber-ey goodness.
10-27-2006, 07:25 PM
#67
Rennlist Member
Originally Posted by Thaddeus
It may be worthless, but apparently there's plenty of folks out there who are willing to spend 175 bucks to Fabspeed for some carbon fiber-ey goodness.
