Qwikrex

I've heard anywhere from 5400-5600 rpms. I've always thought it was 5400. Anyone know for sure???

spektrum

My B16A2's VTEC kick-in is at 5600RPM's running a P30 ecu.

-Whitey-

b16a sirII jdm p30 ecu stock crossover is 5500,mines set at 5400 with v-afc


[Modified by one-syk, 8:38 PM 12/4/2002]

Qwikrex

Does this apply to the USDM B16A2 in a 2000 Si with stock P2T ecu as well?


[Modified by [VTEC]TL, 9:51 PM 12/4/2002]

Kamin

yes the b16 crossover is about 5600

Paranoid Android

i always just said 5500 for my b16a2...

acura_typer

in reality, its 5300...tachs are always off by a few hundred, esp when they are moving forward. I verified this on my USDM P30 ECU with my VAFC.

Kamin

by that logic then my rev limiter should be near 8900. its at 8300, where its supposed to be.
i dont think its 5300 man, sorry.

-Whitey-

i have the jdm p30 and i used a v-afc to find where the crossover was..it was at 5500 stock my tach said 5700

Qwikrex

See what I mean about the misconceptions? BTW, Whats the diff.(if any) between the JDM P30 ecu and the USDM P2T?


[Modified by [VTEC]TL, 1:15 AM 12/5/2002]

maxim

Do the math By that logic, your tach would show you hitting the rev limit at 8500. Most Honda tachs are off by 200 rpm. When you hit the rev limiter, while racing, you are probably not paying attention. So by the time you look up it has fallen down. Though, if you are continously watching your tach just see when it will hit, you have no business on a tech forum.

Edit: This may explain why you can't get a straight answer when it kicks in(between 200rpms). Some are going by the VAFC and some are going by the tach. I would trust something directly linked to the ECU, not a mechanical device like a tach.





[Modified by maxim, 12:55 PM 12/5/2002]

GReddy SI

iTrader: (1)

5500 on my 2k si

MikeMAN

5500

-Whitey-

yea the v-afc is linked directly to the ecu the tach is not theres your answer

smnowell

I swear when I installed my VAFC, it said the stock VTEC crossover was 5800 on my JDM P30...but who knows. It's somewhere mid-high 5,000s....

nsxmatt

Mine doesn't kick in till about 6100 with my obd 1 pr3. And I always thought they were the same as the p30.

714eg

Stock vtec would kick in @ 5700rpm. My tach is only off by 50rpm. I heard that depending on the Temp. of coolant & oil that it effects and can make it kick in @ different RPM's.

Qwikrex

So it seems the general consensus says 5500 rpm. My tach seems to be like 200 rpms off as well. I think 5500 is correct. I doubt the crossover would be 5700, because the CTR's crossover is at 5700.

93hybrid

if my **** is real cold like it was after that damn storm. my vtec wont kick in right. but im using a gsr ecu with a b16a2 swap and it kicks in normally at like 4500rpm and it runs fine after it warms up. i've heard of other people havin problems with this combo but mine works fine.