Re: ZC Swap
 

"JR Lomas" <jrl@engineer.nu> wrote in message
news:1uWdncPFSomQC67dRVn-uQ@comcast.com...
> The belt is not off by a tooth or two. I already have made sure of that, I
> precisely aligned the marks on the sprockets. The car does not hesitate
or
> run bad while cold (feels like it has more power when cold), the car has
> plenty of power once it gets passed 3000RPMs.

Double check the procedure for and actual measurement of the timing and
the called-for specs. for that particular combo. Initial timing being low
could kill initial low-end power. **Caution**Initial timing being HIGH
could burn a piston in a heartbeat!
HTH & good luck. s

Re: ZC Swap
 

On Wed, 18 Feb 2004 11:42:50 -0500, "JR Lomas" <jrl@engineer.nu> wrote:

|The belt is not off by a tooth or two. I already have made sure of that, I
|precisely aligned the marks on the sprockets. The car does not hesitate or
|run bad while cold (feels like it has more power when cold), the car has
|plenty of power once it gets passed 3000RPMs.

Sounds to me like the VTEC is engaged all the time.

|"'Curly Q. Links'" <motsco__@interbaun.com> wrote in message
|news:40338295.1582C479@interbaun.com...
|> JR Lomas wrote:
|> >
|> > I just made a ZC SOHC swap into my Honda Civic 94 LX 5-speed. The car
|has
|> > now absolutely no low-end power even for a civic. My car stalls going
|up my
|> > driveway on first unless I slip on the clutch at 3000RPM. I have tested
|the
|> > engine compression and it is good and well whithin specifications. I
|have
|> > checked the timing and it is right at 15 degrees BTDC. Is there
|something I
|> > am missing?
|> > Thanks for any help in advance,
|> >
|> > - JR
|>
|> ==================
|>
|> Ignition timing may look OK with a scope, but the cam timing can be out
|> a tooth or two on the timing belt... Symptom: Hesitation, stalling at
|> low end, runs terrible until completely warmed up, and even then no
|> power.
|>
|> 'Curly'
|>
|>
|> =================
|> --
|
|

Rex in Fort Worth

Re: ZC Swap
 

On Wed, 18 Feb 2004 11:42:50 -0500, "JR Lomas" <jrl@engineer.nu> wrote:

|The belt is not off by a tooth or two. I already have made sure of that, I
|precisely aligned the marks on the sprockets. The car does not hesitate or
|run bad while cold (feels like it has more power when cold), the car has
|plenty of power once it gets passed 3000RPMs.

Sounds to me like the VTEC is engaged all the time.

|"'Curly Q. Links'" <motsco__@interbaun.com> wrote in message
|news:40338295.1582C479@interbaun.com...
|> JR Lomas wrote:
|> >
|> > I just made a ZC SOHC swap into my Honda Civic 94 LX 5-speed. The car
|has
|> > now absolutely no low-end power even for a civic. My car stalls going
|up my
|> > driveway on first unless I slip on the clutch at 3000RPM. I have tested
|the
|> > engine compression and it is good and well whithin specifications. I
|have
|> > checked the timing and it is right at 15 degrees BTDC. Is there
|something I
|> > am missing?
|> > Thanks for any help in advance,
|> >
|> > - JR
|>
|> ==================
|>
|> Ignition timing may look OK with a scope, but the cam timing can be out
|> a tooth or two on the timing belt... Symptom: Hesitation, stalling at
|> low end, runs terrible until completely warmed up, and even then no
|> power.
|>
|> 'Curly'
|>
|>
|> =================
|> --
|
|

Rex in Fort Worth

Re: ZC Swap
 

On Wed, 18 Feb 2004 11:42:50 -0500, "JR Lomas" <jrl@engineer.nu> wrote:

|The belt is not off by a tooth or two. I already have made sure of that, I
|precisely aligned the marks on the sprockets. The car does not hesitate or
|run bad while cold (feels like it has more power when cold), the car has
|plenty of power once it gets passed 3000RPMs.

Sounds to me like the VTEC is engaged all the time.

|"'Curly Q. Links'" <motsco__@interbaun.com> wrote in message
|news:40338295.1582C479@interbaun.com...
|> JR Lomas wrote:
|> >
|> > I just made a ZC SOHC swap into my Honda Civic 94 LX 5-speed. The car
|has
|> > now absolutely no low-end power even for a civic. My car stalls going
|up my
|> > driveway on first unless I slip on the clutch at 3000RPM. I have tested
|the
|> > engine compression and it is good and well whithin specifications. I
|have
|> > checked the timing and it is right at 15 degrees BTDC. Is there
|something I
|> > am missing?
|> > Thanks for any help in advance,
|> >
|> > - JR
|>
|> ==================
|>
|> Ignition timing may look OK with a scope, but the cam timing can be out
|> a tooth or two on the timing belt... Symptom: Hesitation, stalling at
|> low end, runs terrible until completely warmed up, and even then no
|> power.
|>
|> 'Curly'
|>
|>
|> =================
|> --
|
|

Rex in Fort Worth

Re: ZC Swap
 

NOSPAMrex@REMOVEtxol.net (Rex B) wrote in
news:4033d651.198449820@news.txol.net:

> On Wed, 18 Feb 2004 11:42:50 -0500, "JR Lomas" <jrl@engineer.nu>
> wrote:
>
>|The belt is not off by a tooth or two. I already have made sure of
>|that, I precisely aligned the marks on the sprockets. The car does
>|not hesitate or run bad while cold (feels like it has more power when
>|cold), the car has plenty of power once it gets passed 3000RPMs.
>
> Sounds to me like the VTEC is engaged all the time.
>

I wonder if he changed the ECU to match the new engine?


--
Jim Yanik
jyanik-at-kua.net

Re: ZC Swap
 

NOSPAMrex@REMOVEtxol.net (Rex B) wrote in
news:4033d651.198449820@news.txol.net:

> On Wed, 18 Feb 2004 11:42:50 -0500, "JR Lomas" <jrl@engineer.nu>
> wrote:
>
>|The belt is not off by a tooth or two. I already have made sure of
>|that, I precisely aligned the marks on the sprockets. The car does
>|not hesitate or run bad while cold (feels like it has more power when
>|cold), the car has plenty of power once it gets passed 3000RPMs.
>
> Sounds to me like the VTEC is engaged all the time.
>

I wonder if he changed the ECU to match the new engine?


--
Jim Yanik
jyanik-at-kua.net

Re: ZC Swap
 

NOSPAMrex@REMOVEtxol.net (Rex B) wrote in
news:4033d651.198449820@news.txol.net:

> On Wed, 18 Feb 2004 11:42:50 -0500, "JR Lomas" <jrl@engineer.nu>
> wrote:
>
>|The belt is not off by a tooth or two. I already have made sure of
>|that, I precisely aligned the marks on the sprockets. The car does
>|not hesitate or run bad while cold (feels like it has more power when
>|cold), the car has plenty of power once it gets passed 3000RPMs.
>
> Sounds to me like the VTEC is engaged all the time.
>

I wonder if he changed the ECU to match the new engine?


--
Jim Yanik
jyanik-at-kua.net

Re: ZC Swap
 

ZC isn't vtec. They are twin cam (and single cam) 1.6l engines that were in
88-91 civics in Japan.

"Jim Yanik" <jyanik@abuse.gov> wrote in message
news:Xns9493CB17D4350jyanikkuanet@204.117.192.21.. .
> NOSPAMrex@REMOVEtxol.net (Rex B) wrote in
> news:4033d651.198449820@news.txol.net:
>
> > On Wed, 18 Feb 2004 11:42:50 -0500, "JR Lomas" <jrl@engineer.nu>
> > wrote:
> >
> >|The belt is not off by a tooth or two. I already have made sure of
> >|that, I precisely aligned the marks on the sprockets. The car does
> >|not hesitate or run bad while cold (feels like it has more power when
> >|cold), the car has plenty of power once it gets passed 3000RPMs.
> >
> > Sounds to me like the VTEC is engaged all the time.
> >
>
> I wonder if he changed the ECU to match the new engine?
>
>
> --
> Jim Yanik
> jyanik-at-kua.net

Re: ZC Swap
 

ZC isn't vtec. They are twin cam (and single cam) 1.6l engines that were in
88-91 civics in Japan.

"Jim Yanik" <jyanik@abuse.gov> wrote in message
news:Xns9493CB17D4350jyanikkuanet@204.117.192.21.. .
> NOSPAMrex@REMOVEtxol.net (Rex B) wrote in
> news:4033d651.198449820@news.txol.net:
>
> > On Wed, 18 Feb 2004 11:42:50 -0500, "JR Lomas" <jrl@engineer.nu>
> > wrote:
> >
> >|The belt is not off by a tooth or two. I already have made sure of
> >|that, I precisely aligned the marks on the sprockets. The car does
> >|not hesitate or run bad while cold (feels like it has more power when
> >|cold), the car has plenty of power once it gets passed 3000RPMs.
> >
> > Sounds to me like the VTEC is engaged all the time.
> >
>
> I wonder if he changed the ECU to match the new engine?
>
>
> --
> Jim Yanik
> jyanik-at-kua.net

Re: ZC Swap
 

ZC isn't vtec. They are twin cam (and single cam) 1.6l engines that were in
88-91 civics in Japan.

"Jim Yanik" <jyanik@abuse.gov> wrote in message
news:Xns9493CB17D4350jyanikkuanet@204.117.192.21.. .
> NOSPAMrex@REMOVEtxol.net (Rex B) wrote in
> news:4033d651.198449820@news.txol.net:
>
> > On Wed, 18 Feb 2004 11:42:50 -0500, "JR Lomas" <jrl@engineer.nu>
> > wrote:
> >
> >|The belt is not off by a tooth or two. I already have made sure of
> >|that, I precisely aligned the marks on the sprockets. The car does
> >|not hesitate or run bad while cold (feels like it has more power when
> >|cold), the car has plenty of power once it gets passed 3000RPMs.
> >
> > Sounds to me like the VTEC is engaged all the time.
> >
>
> I wonder if he changed the ECU to match the new engine?
>
>
> --
> Jim Yanik
> jyanik-at-kua.net

Re: ZC Swap
 

You are correct, brain fade on my part ;)
So it's back to probable timing, ignition or camshaft.
I'd say the cam is retarded one tooth.

|ZC isn't vtec. They are twin cam (and single cam) 1.6l engines that were in
|88-91 civics in Japan.
|
|"Jim Yanik" <jyanik@abuse.gov> wrote in message
|news:Xns9493CB17D4350jyanikkuanet@204.117.192.21. ..
|> NOSPAMrex@REMOVEtxol.net (Rex B) wrote in
|> news:4033d651.198449820@news.txol.net:
|>
|> > On Wed, 18 Feb 2004 11:42:50 -0500, "JR Lomas" <jrl@engineer.nu>
|> > wrote:
|> >
|> >|The belt is not off by a tooth or two. I already have made sure of
|> >|that, I precisely aligned the marks on the sprockets. The car does
|> >|not hesitate or run bad while cold (feels like it has more power when
|> >|cold), the car has plenty of power once it gets passed 3000RPMs.
|> >
|> > Sounds to me like the VTEC is engaged all the time.
|> >
|>
|> I wonder if he changed the ECU to match the new engine?
|>
|>
|> --
|> Jim Yanik
|> jyanik-at-kua.net
|
|

Rex in Fort Worth

Re: ZC Swap
 

You are correct, brain fade on my part ;)
So it's back to probable timing, ignition or camshaft.
I'd say the cam is retarded one tooth.

|ZC isn't vtec. They are twin cam (and single cam) 1.6l engines that were in
|88-91 civics in Japan.
|
|"Jim Yanik" <jyanik@abuse.gov> wrote in message
|news:Xns9493CB17D4350jyanikkuanet@204.117.192.21. ..
|> NOSPAMrex@REMOVEtxol.net (Rex B) wrote in
|> news:4033d651.198449820@news.txol.net:
|>
|> > On Wed, 18 Feb 2004 11:42:50 -0500, "JR Lomas" <jrl@engineer.nu>
|> > wrote:
|> >
|> >|The belt is not off by a tooth or two. I already have made sure of
|> >|that, I precisely aligned the marks on the sprockets. The car does
|> >|not hesitate or run bad while cold (feels like it has more power when
|> >|cold), the car has plenty of power once it gets passed 3000RPMs.
|> >
|> > Sounds to me like the VTEC is engaged all the time.
|> >
|>
|> I wonder if he changed the ECU to match the new engine?
|>
|>
|> --
|> Jim Yanik
|> jyanik-at-kua.net
|
|

Rex in Fort Worth

Re: ZC Swap
 

You are correct, brain fade on my part ;)
So it's back to probable timing, ignition or camshaft.
I'd say the cam is retarded one tooth.

|ZC isn't vtec. They are twin cam (and single cam) 1.6l engines that were in
|88-91 civics in Japan.
|
|"Jim Yanik" <jyanik@abuse.gov> wrote in message
|news:Xns9493CB17D4350jyanikkuanet@204.117.192.21. ..
|> NOSPAMrex@REMOVEtxol.net (Rex B) wrote in
|> news:4033d651.198449820@news.txol.net:
|>
|> > On Wed, 18 Feb 2004 11:42:50 -0500, "JR Lomas" <jrl@engineer.nu>
|> > wrote:
|> >
|> >|The belt is not off by a tooth or two. I already have made sure of
|> >|that, I precisely aligned the marks on the sprockets. The car does
|> >|not hesitate or run bad while cold (feels like it has more power when
|> >|cold), the car has plenty of power once it gets passed 3000RPMs.
|> >
|> > Sounds to me like the VTEC is engaged all the time.
|> >
|>
|> I wonder if he changed the ECU to match the new engine?
|>
|>
|> --
|> Jim Yanik
|> jyanik-at-kua.net
|
|

Rex in Fort Worth

Re: ZC Swap
 

"Jafir Elkurd" <jafir@nospam.no.spam.hotpop.com> wrote in
news:10388ni7angdpaa@corp.supernews.com:

> ZC isn't vtec. They are twin cam (and single cam) 1.6l engines that
> were in 88-91 civics in Japan.
>
> "Jim Yanik" <jyanik@abuse.gov> wrote in message
> news:Xns9493CB17D4350jyanikkuanet@204.117.192.21.. .
>> NOSPAMrex@REMOVEtxol.net (Rex B) wrote in
>> news:4033d651.198449820@news.txol.net:
>>
>> > On Wed, 18 Feb 2004 11:42:50 -0500, "JR Lomas" <jrl@engineer.nu>
>> > wrote:
>> >
>> >|The belt is not off by a tooth or two. I already have made sure of
>> >|that, I precisely aligned the marks on the sprockets. The car does
>> >|not hesitate or run bad while cold (feels like it has more power
>> >|when cold), the car has plenty of power once it gets passed
>> >|3000RPMs.
>> >
>> > Sounds to me like the VTEC is engaged all the time.
>> >
>>
>> I wonder if he changed the ECU to match the new engine?
>>
>>
>> --
>> Jim Yanik
>> jyanik-at-kua.net
>
>

I wasn't the one to claim VTEC always engaged.That was "RexB".

But different motors ARE going to have different ECU programs.

--
Jim Yanik
jyanik-at-kua.net

Re: ZC Swap
 

"Jafir Elkurd" <jafir@nospam.no.spam.hotpop.com> wrote in
news:10388ni7angdpaa@corp.supernews.com:

> ZC isn't vtec. They are twin cam (and single cam) 1.6l engines that
> were in 88-91 civics in Japan.
>
> "Jim Yanik" <jyanik@abuse.gov> wrote in message
> news:Xns9493CB17D4350jyanikkuanet@204.117.192.21.. .
>> NOSPAMrex@REMOVEtxol.net (Rex B) wrote in
>> news:4033d651.198449820@news.txol.net:
>>
>> > On Wed, 18 Feb 2004 11:42:50 -0500, "JR Lomas" <jrl@engineer.nu>
>> > wrote:
>> >
>> >|The belt is not off by a tooth or two. I already have made sure of
>> >|that, I precisely aligned the marks on the sprockets. The car does
>> >|not hesitate or run bad while cold (feels like it has more power
>> >|when cold), the car has plenty of power once it gets passed
>> >|3000RPMs.
>> >
>> > Sounds to me like the VTEC is engaged all the time.
>> >
>>
>> I wonder if he changed the ECU to match the new engine?
>>
>>
>> --
>> Jim Yanik
>> jyanik-at-kua.net
>
>

I wasn't the one to claim VTEC always engaged.That was "RexB".

But different motors ARE going to have different ECU programs.

--
Jim Yanik
jyanik-at-kua.net