TaffetaEj6

I have a sir 2 swap...using a jdm p30 ecu

I have seen several threads from different sites with people asking the same question i am about to ask and get answers from all over the place. So im gonna try it again cause i dont even know...

From first hand expierience if you are using a virgin jdm p30 ecu...where is your vtec crossover, what rpm? what rpm is your rev limit? and @ what mph does your speed limiter hit.

tlarimer

iTrader: (3)

Come on brother, I will help you out with what I can, but I just typed b series specs into google and here is what I found in the first link.

JDM B16A (Second Generation)
Found in:
1991-1994 JDM Honda Civic Sir/SiRII (EG6)
1991-1993 JDM Honda Civic Ferio SiR (EG9)
1992-1995 JDM Honda CRX Delsol SiR (EG2)
1995-1998 JDM Honda Civic Sir/SiRII (EK4)
1995-1998 JDM Honda Civic Ferio Si (EK4)
Displacement: 1,595 cc (97.3 cu in) 1.6 liter
Compression: 10.4:1
Bore: 81 mm (3.2 in)
Stroke: 77.4 mm (3.0 in)
Rod Length: 134 mm (5.3 in)
Rod/stroke ratio: 1.745
Power: MT: 170 PS (125 kW; 168 hp) @ 7,800 rpm & 16 kg·m (157 N·m; 116 ft·lbf) @ 7,300 rpm
VTEC engagement: 5800 rpm
Redline: 8200 rpm (AT: 7700 rpm )
Transmission: S4C/Y21/S21 (4.4 final drive, optional LSD)
ECU code: P30 (EG2/EG6/EG9) P2S (EK9)
OBD1

Speed limiter is somewhere around 102/109mph, someone else here can give you the exact speed limiter specs.

TaffetaEj6

Sorry man but i wasn't looking for some wikipedia search...i have been there done that. If you look at 6 sites and specs they have for p30 ecu they are damn near never the same, its not very trustworthy. It would be different if you looked at 6 sites and 4 of them said the same thing. I want first hand experience brother. Some sites say vtec @ 5200...5500...5700...5875...so which is it? And where in the info you sent me does it say the rev limit??? It says redline but not LIMITER.... Thanks anyways

canadaek

pretty sure all jdm ecu's cut out at 180kmh

94EG8

190km/h IIRC. They definitely cut out.

foo fighters

CROME says p30 rev limit is 8296 rpm, v-tec engagement at 5872 rpm, speed limiter is at 115 mph(180 kmh). thats a CROME base map.

TaffetaEj6

so does ANYONE have a jdm p30 in their car??? I know my tach is off but i dont know by how much. W/ how high i've reved the motor, it doesn't hit a limiter...i know its common for tachs to be inaccurate, but ive spun my motor to 8600rpm according to my tach and hit no limiter. Vtec does crossover @ 5900 rpm which is so close to what foo fighters said so i dunno. I have also hit the speed limiter @ 120 mph but still considering mph off due to tire size, i would guess it was at 115mph. So I see 2 of the 3 things i have with this ecu, vtec and speed limiter but i am stumped about the rev limit and i know its not chipped. I have read on a few sites though that the p30 has no rev limit, but others that say it does. wtf! Could it be one that has no rev limit?

94EG8

If it legitmately doesn't have a rev limit it's chipped. If I were you i'd plug a good aftermarket tack into the tach test wire in the engine bay and see how far the factory tach is off.

Red_Army

this is how it's worked since i bought it at Hmotors.

vtec- 5800
rev limit- 8200
mph limit- 125 is the highest my guage goes and it seemed to cut off there.

highmfer

I know its an old thread but...I have a virgin JDM p30 working a OBD2 B16 and vtec at 5800, revs out at 8400 and cuts out at 195kmph. But my speedo might be off a bit.

jap305

i have a b16a2 full swap. just installed a jdm p30 ecu out of the del sol vtec my vtec hits at 4800-ish and the red line is around 8200.

egsleepercivic

I believe on mine its seems to be 5700-5800, redline is 8200, rev limit is like 8400-8450, tachs not super accurate so its hard to tell

SIR Head

iTrader: (1)

I know this is old thread but I've ran a stock p30 ecu to my SIR II swap in my eg for over ten years now and my vtec engages at about 5800, 5900 rpm and my redline is 9000. My speed limiter is 127mph(not kmh). I've got my cluster checked perfect and I've even opened it to see if maybe it was modded but nope it has never been touched. I've been taking my car down to 9k for several years now(stock b16a sir II swap) and never have I in countered any problems with it. I love this ecu!

gzes

Nice 1 year bump but so my sol says like 135 on the speedo and it should have a p30 becayse its rockin a b16a3 so if i max it it wont go all the way?

95ex814

Weird my virgin p30 running my b16a vtec at 4000 rev limit 8900 speedo keeps going past 135mph

KristianGunther

I have a virgin jdm p30, it has vtec engagement at 5800, Revlimit at between 8800-9000, and speed governor at 120 all information verified by 3 different cars

John Biggs

Good info in this thread. Thank you.

z6p30

I have a jdm p30 on my z6 my first z6 the vtec didn't kick but it reved to 9 k and I topped it at 125 now I traded my first z6 for another z6 and the vtec kicks at about 57 maybe 5800 I've beat on it everyday and the ecu never lets me down I feel it's one of the best

NotARaCist

iTrader: (1)

5 year old thread

Bumping an old, dead thread? Check. Using the wrong ECU for the engine? Check. Clear lack of understanding of how certain things work? Check. Please, before posting again, read the rules sticky. It's a sticky thread for a reason.