ophdeheezy

What are the differences between the USDM and JDM H22 ECU?

Like, What is the redline on both?

And, Does the VTEC kick in at same time? 5200 rpm right?

elprez2000

5500rpms, fuel cutoff is still 7200 and the JDM has a speed limiter too. and other thant being optimised for the USDM H22 or the JDM H22 yea they are the same ecu.

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1992 Honda Prelude Si w/JDM H22
So JDM I even drive on the left side of the road.

Brady92/4WS

The JDM ecu is set up for the motor to run on something like 118 octane.

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2.233 60'!, 15.533 at 88.96mph?
I/H/E Konis/Neuspeed Race
.."the Prelude is the best Integra ever made......." - Car & Driver, 1999

The Acclude

Holy wrong information batman!!!!

VTEC x-over is approx 5100rpms on a stock motor.
Rev limit is 7700 Redline is 7400- USDM
Rev limit is 7800 Redline is 74-7500- JDM(correct me if im wrong)


118 Octane? For that Super high 10.6:1?
us is tuned for 91 and up. [my preference is the readily available 93]

JDM ECU- Gh3y governor @ 112-114mph
USDM- No governor and maybe a slight but not noticable difference in tuning.

With that...someone trade me a stock JDM ECU for a USDM.

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14.71@95.39 in a 91 Accord...who knew?

prelude1215

why does the jdm have the governor set to 112 and the usdm doesnt have a limit?

G_Loc

cuz we're cool and dont need a computer telling us how fast we should be going

heh, jk. they got a regulation over there that limits the cars to ~112 mph or so. i guess they dont want any crazy people doing 130 on their freeways

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