Mugen_is_best

Hi, all. I recently installed a Mugen intake onto my car alongside a flashpro. I'm wondering, which calibration would be safest/best to use -in the meantime- before I get a custom tune. I'm waiting to finish my power mods (header+hfc) before I do a custom tune. The mugen intake -running the factory ecu- already exhibited positive attributes, so I wonder if I should be running the tuned calibration or one of the intake calibrations, for now.

Does anyone know if any of the intake calibrations (ie aem v2, fujita, etc) are the same as the "tuned" calibration, but tailored for an intake?

Would it be detrimental in any way for me to use the Mugen calibration (intake, header, exhaust) with my setup?

Daddy_Danglez

id say youd be fine with the aem, or fujita tune. id run one for a day or so, then run the other. i dont think either will hurt your car.

maybe someone with a little more experience than me can chime in. but mine was on the toda tune before i had Gernby take over. (I/H/E mods)

Memo6453

grab a HFC or Test Pipe and then have it tuned. I used Gernby and the car was a blast. The generic maps didnt work for me, so i just had him send me over the goods... at the time i had 60mm TP and exhaust with the FIPK.

Good Luck

Mugen_is_best

Thanks for the input, guys. I'm definitely going to go with a hfc. I haven't decided if I want a 60 or 70mm yet. From all the Gernby posts I've read the 70mm setup makes more power, especially with a test pipe, but is potentially louder and more obnoxious.

alSpeed2k

^Where did you read that? Iirc, Gernby says to match up the diameter of the HFC/TP with your exhaust.

Chuck S

Stick with the OEM tune until you get tuned. The ECU will handle it nicely.

The S2000 header is as good as you're gonna get performance wise. You can maybe save a pound or two with an aftermarket header and all the hassles installing it. I think it's about 57mm or so. If you stick a large diameter pipe in there the exhaust flow will slow down. Same volume, but flowing slower. I'm led to believe large exhausts lack mid-range power, something these cars need.

I'm connected to a K&N FIPK up front and out via a 63.5mm Berk High Flow cat and 60mm Tanabe Medalion Touring exhaust -- won't impress the guys at the high school parking lot (like the Q300 did ) but is very satisfying especially when she hits VTEC. Which is now at 3600 rpm under load after Gernby tune -- highly recommended. Hits the rev limiter fast in the lower gears!

Butt dyno shows impressive acceleration gains. Real dyno scheduled in about 10 days. Peak horse power is less the goal than mid-range power -- the area under the curve.

-- Chuck

Mugen_is_best

To clarify, what I meant is that if I go with a 70mm hfc I would also mate it to a 70mm exhaust. If I go with the 63.5mm hfc I would match it to a similar sized exhaust, or retain the oem one. My Gernby research has led me to believe that for ultimate power gains (both N/A and F/I) a 70mm setup is desirable. I don't like exhaust noise much. I don't mind, and actually like, the intake noise. From my research on headers, a Toda, J's, or Mugen will produce decent gains in the mid-range.

Memo6453

just get a test pipe and tune it. thatll be your best gains. Then decide where you want to go with the car.

Chuck S

My "research" indicates a 63.5mm high flow cat will work with any cat-back exhaust and avoid the immediate exhaust velocity loss going from a 57mm-ish header to a 70mm exhaust. This is why I put one there when I had the larger diameter Invidia Q300 cat back exhaust. Increase the diameter incrementally.

I'll have dyno numbers next week at this time -- pure curiosity. No " before" only "after."

-- Chuck

Mugen_is_best

Memo6453, I hate the smell of a test pipe. I get a headache when I'm behind a car that has one so I don't want to "do unto others as they would do to you". If it were a track-only car, I could see fitting a test pipe.

Chuck S, that logic seems pretty sound to me. I'll probably just slap the 63.5mm Berk on there and go from there.