NA: ITB's
Originally Posted by wildcardtrd,Apr 10 2007, 06:47 AM
If all you're concerned with is peak power, you've missed the entire point of ITB's, or N/A tuning for that matter. Go get a turbo.
ITB's are about transient response, and midrange punch. Sure, I'm sitting at 215 rwhp peak, where after just my AEM EMS, I was at 208...but...and pay attention...
My 215 comes on at 7900 rpm. My 208 was at 8800 rpm. I'm sitting almost 50 hp above stock thru pretty much all of the meat and potatoes of my powerband. Every N/A s2000, and I mean EVERY n/a s2000 that I've lined up against, from a dig or roll, I slaughter by carlengths, whether they've got 15 peak power on me or not. How long do you spend above 8500 rpm? A second, at most, each gear. How much time do you spend between 5000 and 8000? Uh huh, all the rest of the time.
ITB's are about transient response, and midrange punch. Sure, I'm sitting at 215 rwhp peak, where after just my AEM EMS, I was at 208...but...and pay attention...
My 215 comes on at 7900 rpm. My 208 was at 8800 rpm. I'm sitting almost 50 hp above stock thru pretty much all of the meat and potatoes of my powerband. Every N/A s2000, and I mean EVERY n/a s2000 that I've lined up against, from a dig or roll, I slaughter by carlengths, whether they've got 15 peak power on me or not. How long do you spend above 8500 rpm? A second, at most, each gear. How much time do you spend between 5000 and 8000? Uh huh, all the rest of the time.
Automatic throttle response, and acute horse power gains when it is needed is the name of the ITB game. Listen to this man he knows what he is talking about. God Bless NA.
Originally Posted by Skatethesea,Feb 25 2008, 02:57 PM
The point has been made.
Automatic throttle response, and acute horse power gains when it is needed is the name of the ITB game. Listen to this man he knows what he is talking about. God Bless NA.
Automatic throttle response, and acute horse power gains when it is needed is the name of the ITB game. Listen to this man he knows what he is talking about. God Bless NA.
this thread is great!
I have a noob question I live in oregon(lots of rain) If I ran itbs with a ventilated hood and no filters would that be hazardous?? like could it suck water from ontop of the hood into the engine?? sorry this is probably a very stupid question but thanks guys
Originally Posted by EVAN&MONICA,Feb 29 2008, 01:03 PM
this thread is great!
I have a noob question I live in oregon(lots of rain) If I ran itbs with a ventilated hood and no filters would that be hazardous?? like could it suck water from ontop of the hood into the engine?? sorry this is probably a very stupid question but thanks guys 

Florida is the thunderstorm capital of the world! I've driven thru torrential downpours so bad that I couldn't even see 1 carlength in front of me, and never once had an ounce of trouble.
Just finished my DIY ITB setup.
Just some info on it:
Hayabusa throttle bodies
Homemade carbon fiberbell mouths (4" long, 2.5" tapered to 2")
Uses all stock sensors except the TPS (hayabusa)
AEM EMS
Stock injectors
Custom fuel rail
Aeromotive FPR
IAC valve is being used
Vacuum distribution block used

Just some info on it:
Hayabusa throttle bodies
Homemade carbon fiberbell mouths (4" long, 2.5" tapered to 2")
Uses all stock sensors except the TPS (hayabusa)
AEM EMS
Stock injectors
Custom fuel rail
Aeromotive FPR
IAC valve is being used
Vacuum distribution block used

Originally Posted by ronac,Apr 2 2008, 12:07 PM
Just finished my DIY ITB setup.
Just some info on it:
Hayabusa throttle bodies
Homemade carbon fiberbell mouths (4" long, 2.5" tapered to 2")
Uses all stock sensors except the TPS (hayabusa)
AEM EMS
Stock injectors
Custom fuel rail
Aeromotive FPR
IAC valve is being used
Vacuum distribution block used

Just some info on it:
Hayabusa throttle bodies
Homemade carbon fiberbell mouths (4" long, 2.5" tapered to 2")
Uses all stock sensors except the TPS (hayabusa)
AEM EMS
Stock injectors
Custom fuel rail
Aeromotive FPR
IAC valve is being used
Vacuum distribution block used

is it tuned yet or is that in the works?


