Is this too low for vtec engagment ??
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From: Your mommas bed, that might be true too ..., So Cali, USA
Is this too low for vtec engagment ??
4400 for a D16Z6 93 EJ all stock aem intake
I just put the numbers cause this is a civic section (hint: eg+civic)
Modified by Evolution-93-Ex at 1:43 PM 7/7/2004
I just put the numbers cause this is a civic section (hint: eg+civic)
Modified by Evolution-93-Ex at 1:43 PM 7/7/2004
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From: Southern, MI
I think it would depend heavily on modifications, engine type, and setup. Also, where are these 5000 RPM dyno plots? I would like to see those puppies.
But regardless of any of this, your best VTEC crossover can easily be determined on a dyno.
But regardless of any of this, your best VTEC crossover can easily be determined on a dyno.
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From: Tulsa, OK
Re: Is this too low for vtec engagment ?? (junkyard racer)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by junkyard racer »</TD></TR><TR><TD CLASS="quote">I thought that dyno proven on all Vtec motors, 5000 RPM was the best for VTEC changeover.</TD></TR></TABLE>
There is NO one correct crossover for every engine. Read my post to get a better understanding of where the crossover should be set.
There is NO one correct crossover for every engine. Read my post to get a better understanding of where the crossover should be set.
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From: Northwest
Re: Is this too low for vtec engagment ?? (Ej1_coupe)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ej1_coupe »</TD></TR><TR><TD CLASS="quote">Every car is different. you need to get it tuned to decide where best vtec engagement point is.</TD></TR></TABLE>
Exactly, but just my 2cents...I don't know if you have enough oil pressure to drop your vtec that low. I'm runnin a b16 with Toda Spec Bs and valve train, my vtec is at 7k. The primary lob make more power then the vtec lobe. I'd raise the vtec point still if my VAFC would allow it
Exactly, but just my 2cents...I don't know if you have enough oil pressure to drop your vtec that low. I'm runnin a b16 with Toda Spec Bs and valve train, my vtec is at 7k. The primary lob make more power then the vtec lobe. I'd raise the vtec point still if my VAFC would allow it
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From: Cincinnati, Ohio
Re: Is this too low for vtec engagment ?? (junkyard racer)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by junkyard racer »</TD></TR><TR><TD CLASS="quote">I thought that dyno proven on all Vtec motors, 5000 RPM was the best for VTEC changeover.</TD></TR></TABLE>
Dependent upon the cams used.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wannaTypeR »</TD></TR><TR><TD CLASS="quote">Exactly, but just my 2cents...I don't know if you have enough oil pressure to drop your vtec that low. I'm runnin a b16 with Toda Spec Bs and valve train, my vtec is at 7k. The primary lob make more power then the vtec lobe. I'd raise the vtec point still if my VAFC would allow it</TD></TR></TABLE>
Over camming it eh?
Dependent upon the cams used.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wannaTypeR »</TD></TR><TR><TD CLASS="quote">Exactly, but just my 2cents...I don't know if you have enough oil pressure to drop your vtec that low. I'm runnin a b16 with Toda Spec Bs and valve train, my vtec is at 7k. The primary lob make more power then the vtec lobe. I'd raise the vtec point still if my VAFC would allow it</TD></TR></TABLE>
Over camming it eh?
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From: Auburn, wa, usa
Re: Is this too low for vtec engagment ?? (wannaTypeR)
the best way to set your vtec is on a dyno. that is the only way you will be able to adjust it properlly. You set your vtec all the way up in the rpm's. you do a dyno run and you look to see where the it stops making torque, then you set up your vtec point a couple hundred rpm's lower than your peek torque on your lower cam. 98ctr
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From: Jizzleland
Re: Is this too low for vtec engagment ?? (Evolution-93-Ex)
As everyone said. It depends on your setup.
Currently I am running a JDM B18C motor and using a Kenji P28 ECU.
Vtec @5300-9000. Feels nice.
Now I can't confirm whether it makes more power or what not cause I haven't been on a dyno yet.
But I just recently got a Roaring Turtle Chip w/ vtec @4400-9000. Also good.
Hopefully in 2 weeks I can go to the NY H-T meet and get to test those chips out and see what is better for my application.
Currently I am running a JDM B18C motor and using a Kenji P28 ECU.
Vtec @5300-9000. Feels nice.
Now I can't confirm whether it makes more power or what not cause I haven't been on a dyno yet.
But I just recently got a Roaring Turtle Chip w/ vtec @4400-9000. Also good.
Hopefully in 2 weeks I can go to the NY H-T meet and get to test those chips out and see what is better for my application.
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From: Tulsa, OK
Re: Is this too low for vtec engagment ?? (wannaTypeR)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wannaTypeR »</TD></TR><TR><TD CLASS="quote">over camming? ..sorry not sure what that means</TD></TR></TABLE>
It means you have too much cam(too much duration mostly) for your setup. Smaller engines typically respond better to smaller profiles. You have to find the fine line of too much and not enough duration. Unless you have quite a bit more compression than stock, the Toda Bs are too much cam for a B16A.
It means you have too much cam(too much duration mostly) for your setup. Smaller engines typically respond better to smaller profiles. You have to find the fine line of too much and not enough duration. Unless you have quite a bit more compression than stock, the Toda Bs are too much cam for a B16A.
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From: Northwest
Re: Is this too low for vtec engagment ?? (WAFFLES)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by WAFFLES »</TD></TR><TR><TD CLASS="quote">
It means you have too much cam(too much duration mostly) for your setup. Smaller engines typically respond better to smaller profiles. You have to find the fine line of too much and not enough duration. Unless you have quite a bit more compression than stock, the Toda Bs are too much cam for a B16A.</TD></TR></TABLE>
Haha well DAMN, those were pretty spendy too. I guess the best thing now would to buy a gsr block and put in some CTR pistons to bump up the compression.
By having too much duration do you mean my valves are open to long and nothing is happening part of the time they are open? ..dunno if that makes sense
It means you have too much cam(too much duration mostly) for your setup. Smaller engines typically respond better to smaller profiles. You have to find the fine line of too much and not enough duration. Unless you have quite a bit more compression than stock, the Toda Bs are too much cam for a B16A.</TD></TR></TABLE>
Haha well DAMN, those were pretty spendy too. I guess the best thing now would to buy a gsr block and put in some CTR pistons to bump up the compression.
By having too much duration do you mean my valves are open to long and nothing is happening part of the time they are open? ..dunno if that makes sense
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From: Tulsa, OK
Re: Is this too low for vtec engagment ?? (wannaTypeR)
Yes your valves are staying open longer. The longer your valves are open, the more compression you lose. That's why people tell you that you are overcamming. If you threw more compression at those cams you will see a much better powerband.
turn your vtec to 4000 rpm, and dyno run it. then turn it to 6500 rpm, run it again. the place where the power lines cross from the first and second run are exactly where the crossover point should be.
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From: Northwest
Re: Is this too low for vtec engagment ?? (Evolution-93-Ex)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Evolution-93-Ex »</TD></TR><TR><TD CLASS="quote">wow my thread got totally jacked i was askin for a D16Z6<U></U> </TD></TR></TABLE>
Sorry bro, I was just curious.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by WAFFLES »</TD></TR><TR><TD CLASS="quote">Yes your valves are staying open longer. The longer your valves are open, the more compression you lose. That's why people tell you that you are overcamming. If you threw more compression at those cams you will see a much better powerband.</TD></TR></TABLE>
Thank you, definately need some ctr pistons. Do you think if I kept the 1.6 block and went with some pistons I'd really see that big of a difference?
Sorry bro, I was just curious.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by WAFFLES »</TD></TR><TR><TD CLASS="quote">Yes your valves are staying open longer. The longer your valves are open, the more compression you lose. That's why people tell you that you are overcamming. If you threw more compression at those cams you will see a much better powerband.</TD></TR></TABLE>
Thank you, definately need some ctr pistons. Do you think if I kept the 1.6 block and went with some pistons I'd really see that big of a difference?
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From: Extraordinary Machine
Re: Is this too low for vtec engagment ?? (Evolution-93-Ex)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Evolution-93-Ex »</TD></TR><TR><TD CLASS="quote">
I just put the numbers cause this is a civic section (hint: eg+civic)</TD></TR></TABLE>
LOL - Hint, more people on this board have hybrids than anywhere!
I just put the numbers cause this is a civic section (hint: eg+civic)</TD></TR></TABLE>
LOL - Hint, more people on this board have hybrids than anywhere!
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From: Tulsa, OK
Re: Is this too low for vtec engagment ?? (wannaTypeR)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wannaTypeR »</TD></TR><TR><TD CLASS="quote">
Sorry bro, I was just curious.
Thank you, definately need some ctr pistons. Do you think if I kept the 1.6 block and went with some pistons I'd really see that big of a difference?</TD></TR></TABLE>
It definitely wouldn't hurt.
Sorry bro, I was just curious.
Thank you, definately need some ctr pistons. Do you think if I kept the 1.6 block and went with some pistons I'd really see that big of a difference?</TD></TR></TABLE>
It definitely wouldn't hurt.