" BRANDON HiCKS "

<FONT COLOR="red"> GooD #'S.... get some ARP head stud's, Cometic Head-gasket, and a block guard and baby it to 15psi...</FONT>

keebler65

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by p0gi &raquo;</TD></TR><TR><TD CLASS="quote">


Tq and Hp always cross at the same point...5250, that is a really poor choice in the choosing of when to turn vtec on. </TD></TR></TABLE>

that was my thought as well....one way to do it correctly is to make a pull with a very low vtec point, and make one with a very high one. overlay the dynos and wherever those tq curves cross is where vtec should be set at.

SL0WEGG

i thought the a/f ratio is supposed to be smooth. looks like its all over the place. pretty good numbers though. and it does look like your losing power turning it on so late. theres a big dip from 4900 and 5500. i would turn the vtec down to 5000. but who am i to tell u this. nice numbers though

H2nr

"Tq and Hp always cross at the same point...5250"

I have seen the crossover point anywhere from 4400 to 6000. You would be more correct to say "a lot of the time it crosses at the same point" instead of "always. Most I my customers seem to be happier if the Vtec turn on is 200-400 higher than it should be. If they cant feel the Vtec turn on they think something is wrong.

p0gi

torque and hp always cross at the same place!!!!!!!!!!! ( period end of story!) If its not crossing at that point then your dyno is messed up or you dont know how to read the graph correctly and are mistakenly thinking that it isnt crossing at that point. Power (hp) = Torque (ft-lb) * RPM / 5252. that is why it always crosses at that point ... you need to do more homework before you can call yourself a tuner!.

kpt4321

1. The horsepower and torque curves will always cross at 5252, there is no other way about it. Horsepower is a formula, just like p0gi said.

2. I don't care what your customers want. If they want an A/F ratio in boost of 8:1, do you let them do it? Do whatever makes the best power, period.

3. In order to properly set the cam crossover point, you need to make a pull on the low cam (no VTEC switch), a pull on the hi cam (very early VTEC switch) and then figure out the point where the power crosses.

H2nr

"I don't care what your customers want. If they want an A/F ratio in boost of 8:1, do you let them do it? Do whatever makes the best power, period."

Yes, I should just be a **** to my customers over 2-4hp in a 200-400 section of the RPM... Oh wait their gearing never drops below 5200rpm when they shift so it doesnt matter anyway. With that attitude good luck with a business, if you have one.

And to p0gi
I should have read more carefully before I responded to your other post. I was talking about the Vtec crossover point being 4400-6000rpm not the point on the graph that the HP and TQ cross. My bad. I shouldnt scan quickly and respond.

dunkd

good numbers, mine was the same... 9psi stock gsr hondata - 294whp

keebler65

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boostedej1 &raquo;</TD></TR><TR><TD CLASS="quote">i thought the a/f ratio is supposed to be smooth. looks like its all over the place. </TD></TR></TABLE>

the AFR looks fine to me....

H2nr

thanks for the positive feedback

HatchAttack242

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by p0gi &raquo;</TD></TR><TR><TD CLASS="quote">


Tq and Hp always cross at the same point...5250, that is a really poor choice in the choosing of when to turn vtec on. </TD></TR></TABLE>

WHY do people not get this?
Tq and Hp always cross at 5250,

BUT the torque curves of two different cam profiles can cross ANYWHERE in the rpm band.

Tune non-vtec lobes, tune vtec lobes.. find where the torque curves of the two cams cross. Set VTEC crossover near there.

This has nothing to do with Hp and Tq crossing. Its where tq curve crosses torque curve.