ITR VTEC engagement = 5K rpms stock?!??

cncl · 06-02-2010, 04:22 PM

Sorry, this is a repost of my thread from the tech section but I'm trying to get all help I can:

Looking at a potential EH3 civic which has a JDM ITR B18C swapped in. Engine, ecu, tranny, etc. is stock ITR according to the seller and he claims to be using the stock JDM P73 ecu.

However, the vtec engagement point on this car is 5K rpms, not the 5.8K or so rpms that I was expecting on a stock ITR setup. Anyone agree with me that this is weird or know cause of this? Anything to do with the car being OBD1 and the engine, ecu, etc being OBD2?

I'd be grateful for any help anyone has...I'm trying to be as thorough as I can in addressing any potential issues before buying the car so advice is really appreciated.

kush_ek · 06-02-2010, 11:03 PM

he got a chipped comp prob look at the ecu u can open it to see if its chipped

RGoose18 · 06-02-2010, 11:05 PM

It's chipped or altered in some way shape or form.

No stock p73's have a 5k crossover

DCRB · 06-03-2010, 12:06 AM

is it possible that the seller is in fact using a gsr ecu, and the tach is off a little?

RGoose18 · 06-03-2010, 07:10 AM

Quote:

Originally Posted by DCRB

is it possible that the seller is in fact using a gsr ecu, and the tach is off a little?

Tach would have to be pretty far off considering the 5400 crossover

DCRB · 06-03-2010, 03:58 PM

Quote:

Originally Posted by RGoose18

Tach would have to be pretty far off considering the 5400 crossover

oooooo k? why's every one on teh interwebz saying it's a 4400 with iabs opening at 6100? just curious...

HONDA RR · 06-16-2010, 05:45 PM

On a stock gsr ecu the vtec crossover is at exactly 5k rpms but not a type r.

Dave-ROR · 06-16-2010, 07:21 PM

Quote:

Originally Posted by HONDA RR

On a stock gsr ecu the vtec crossover is at exactly 5k rpms but not a type r.

Uhh no. It's at 4400rpm on a B18C GS-R.

wego5typer#431 · 06-16-2010, 07:41 PM

Gsr is 4400rpm, type r is 5400rpm

Clerique · 06-17-2010, 03:17 AM

cncl, it's 5000 rpm on my Spoon P73 ECU. Looks like a regular ECU but just with Spoon stickers on it.
Maybe you got a spoon ECU without stickers.
Dunno, jus sayin'.

If so, you should have a higher redline and no speed cut.

95 integra · 06-17-2010, 05:58 AM

First, assume they paid for the work to be done and they have no clue. Second, it probably is running a chipped OBD I ECU since the chassis is OBD I. Third, potentially the tach is off.

06-02-2010, 04:22 PM	#1
cncl Honda-Tech Member Garage is empty, add now Join Date: Apr 2010 Posts: 10 iTrader Rating: (0)	ITR VTEC engagement = 5K rpms stock?!?? Sorry, this is a repost of my thread from the tech section but I'm trying to get all help I can: Looking at a potential EH3 civic which has a JDM ITR B18C swapped in. Engine, ecu, tranny, etc. is stock ITR according to the seller and he claims to be using the stock JDM P73 ecu. However, the vtec engagement point on this car is 5K rpms, not the 5.8K or so rpms that I was expecting on a stock ITR setup. Anyone agree with me that this is weird or know cause of this? Anything to do with the car being OBD1 and the engine, ecu, etc being OBD2? I'd be grateful for any help anyone has...I'm trying to be as thorough as I can in addressing any potential issues before buying the car so advice is really appreciated.

06-02-2010, 11:03 PM	#2
kush_ek Honda-Tech Member 1997 Honda Civic Join Date: May 2009 Location: sensinitas Posts: 58 iTrader Rating: (0)	Re: ITR VTEC engagement = 5K rpms stock?!?? he got a chipped comp prob look at the ecu u can open it to see if its chipped __________________ TEAM FIRME TEAM FIRME TEAM FIRME

06-02-2010, 11:05 PM	#3
RGoose18 Honda-Tech Member Garage is empty, add now Join Date: Sep 2003 Location: USA Posts: 2,433 iTrader Rating: (1)	Re: ITR VTEC engagement = 5K rpms stock?!?? It's chipped or altered in some way shape or form. No stock p73's have a 5k crossover

06-16-2010, 05:45 PM	#7
HONDA RR Honda-Tech Member Garage is empty, add now Join Date: Oct 2004 Location: So, CA Posts: 6,400 iTrader Rating: (0)	Re: ITR VTEC engagement = 5K rpms stock?!?? On a stock gsr ecu the vtec crossover is at exactly 5k rpms but not a type r.

06-16-2010, 07:41 PM	#9
wego5typer#431 Honda-Tech Member 2001 Acura Integra Join Date: Mar 2010 Posts: 129 iTrader Rating: (0)	Re: ITR VTEC engagement = 5K rpms stock?!?? Gsr is 4400rpm, type r is 5400rpm __________________ 2004 gmc Sierra 4x4 2009 Lexus ES350 2001 Integra Type R #01-0431 Supercharged

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06-17-2010, 03:17 AM	#10
Clerique Honda-Tech Member Garage is empty, add now Join Date: Aug 2006 Location: In VTEC Posts: 173 iTrader Rating: (0)	Re: ITR VTEC engagement = 5K rpms stock?!?? cncl, it's 5000 rpm on my Spoon P73 ECU. Looks like a regular ECU but just with Spoon stickers on it. Maybe you got a spoon ECU without stickers. Dunno, jus sayin'. If so, you should have a higher redline and no speed cut.

06-17-2010, 05:58 AM	#11
95 integra Honda-Tech Member Garage is empty, add now Join Date: Nov 2002 Location: Birmingham, AL Posts: 5,936 iTrader Rating: (1)	Re: ITR VTEC engagement = 5K rpms stock?!?? First, assume they paid for the work to be done and they have no clue. Second, it probably is running a chipped OBD I ECU since the chassis is OBD I. Third, potentially the tach is off. __________________ - After 8 years I have an Integra that isnt making that damn buzzing sound from the abs pump. - 2003 Berlina Black S2000 w/ OEM Hardtop and some other OEM goodies.

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ITR VTEC engagement = 5K rpms stock?!??