hay guys just got my ls motor in my vx and i only redline at 6000 should it be like 6800?

 

What ECU are you using?

 

the LS ecu.

 

any codes?

 

get a new ECU

 

no CEL , i think the stock tachometer is off or something wrong with the ecu. will not let me rav pass 5800

 

B18B1
Non-VTEC
Found in:
1994-2001 Acura Integra "RS/LS/GS" (DC4/DB7)
Displacement: 1834 cc
Compression: 9.2:1
Bore: 81 mm
Stroke: 89 mm
Power:
142 hp @ 6300 rpm & 127 ft·lbf @ 5200 rpm
Transmission: Y80/S80

Maybe your tach is a little off, but you're redline should be around 6300.

 

LS redline is 6800, not that you should need to rev the LS motor that high. Might be a bad ECU. Might be that your tach is off. What do you idle at?

 

your revlimiter should come on at lke 7000 it sounds like it might be your ecu if you dont have a cel

 

and are you sure your have the ls ecu or did someone just tell you that? what is the number on it> like p.... 72, p75 , p74? that will help to know what the number is

 

My crazy little brother used to take his LS turbo swap past 7,000 all the time... so I would hope the redline's higher than 6 grand.

 

What wiring harness did you use when you swapped it? My stock VX hit rev limit at 6200 and my LS hits at 7200 on the stock VX tach. Are you sure it has a LS-P75 or does it have a VX-P07? What o2 sensor are you using? 5-wire or 4-wire? There are certain things that you have to do to VX's to get them to run right when you swap them. So you'll have to give some more info before we can help you.

 

Did you jump it to see if it had any codes? If you haven't jumped the ECU do that and it'll probably have a code or so even though your check engine light isn't on.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ek forever guy &raquo;</TD></TR><TR><TD CLASS="quote">B18B1
Non-VTEC
Found in:
1994-2001 Acura Integra "RS/LS/GS" (DC4/DB7)
Displacement: 1834 cc
Compression: 9.2:1
Bore: 81 mm
Stroke: 89 mm
Power:
142 hp @ 6300 rpm & 127 ft·lbf @ 5200 rpm
Transmission: Y80/S80

Maybe your tach is a little off, but you're redline should be around 6300.</TD></TR></TABLE>

Get some real life experience and then open your mouth idiot. You computer nerds go by **** you read on H-motors and ****.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92_VX_EG &raquo;</TD></TR><TR><TD CLASS="quote">
Get some real life experience and then open your mouth idiot. You computer nerds go by **** you read on H-motors and ****.</TD></TR></TABLE>

Umm, he said he was redlining around 6000, 6300 isn't far off from that. So it's feasible that his tach was a little off.

Tool.

 

damn noob. SEARCH!!! this has been convered a bazillion times.

its probably your gas cap. is it broken? believe it or not, it happens all the time

 

Sure seems like you are close to where you should be. Yes Tachs are not always dead on.... especially with OEM.

As far as reving any higher safely, I think you just need some ARP rod bolts to hang around 7-8

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by badboyr66 &raquo;</TD></TR><TR><TD CLASS="quote">As far as reving any higher safely, I think you just need some ARP rod bolts to hang around 7-8</TD></TR></TABLE>

Amen, the stock b18b redline is 6300. not 6800 or 7500

 

yes im sure the motor and the tranny and the ecu came from a 95 ls cause i pull it off my buddy car. i check the ecu and its is a p75 , and the o2 4-wires .

what are the certain things that you have to do to VX's to get them to run right??

 

No, the redline and fuel cut are at ~6800 ... it just stops making power after 6300.

There's a difference between peak efficiency and redline.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Eran &raquo;</TD></TR><TR><TD CLASS="quote">No, the redline and fuel cut are at ~6800 ... it just stops making power after 6300.

There's a difference between peak efficiency and redline.</TD></TR></TABLE>

X2

When I first got my Ls motor in my Ex coupe, Id take her to just about redline (6800) before shifting. That was a few years ago. Now that Ive learned over the past few years about the motor, I shift right around 6300, and it definatley made a difference in my 1/4 mile time. Have you tried opening up the ECU to check and see if any resistors or capacitors have blown or anything else inside it?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ek forever guy &raquo;</TD></TR><TR><TD CLASS="quote">Amen, the stock b18b redline is 6300. not 6800 or 7500</TD></TR></TABLE>

Please stop with the misinformation

 

seriously.... b18b is 6800 i know i have one in my car... so something is wrong, i doubt its his tach either. try another ecu if you can get your hands on one.

 

fix the problem!! found out i forgot to put the gas cap on and check it and put it back, redline at 6300 now . Thanks lamchop0000 help me two times aready

check my ecu and found out i got a cel code 1 , which is o2 but that is the new one , what can be wrong with it?

 

Sorry got the redline and where you should actually rev it to mixed up.

I guess wikipedia can be wrong sometimes...