Finally got everything installed and tuned. I'd love to hear your opinions and/or comments on the results. I wasn't the one tuning and I'm pretty clueless in that department but if you have any questions, I'll do my best to answer them.

The results below are from a Clayton dyno so I'm not exactly sure how that translates into DynoJet numbers.



For a full size image, http://www.we-todd-did-racing....DE%3D


Modified by ITRJunkie at 11:51 PM 6/26/2003

 

Not bad...what did you use to tune? It appears that the power has yet to roll off... a torque curve would be really nice.

Austin

What's the different between the runs, and do you have a baseline before you installed the cams and header? Thanks...


Most important question...how do you like it?

 

theres a dyno shop in queens village? wow never knew that.. why didnt you go to drt or nrg tech?

 

Excuse my ignorance, but what is your exact setup? Did you have any baseline figures? Oh, and please post your weight-reduction techniques .

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Padawan &raquo;</TD></TR><TR><TD CLASS="quote">Excuse my ignorance, but what is your exact setup? Did you have any baseline figures? Oh, and please post your weight-reduction techniques .</TD></TR></TABLE>

Hehe...yeah, I like the 2000lbs

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Austin &raquo;</TD></TR><TR><TD CLASS="quote">It appears that the power has yet to roll off... a torque curve would be really nice.
</TD></TR></TABLE>

Yup... I thought so too. But I had the wifey take the car in for the tuning since I had to work

Parts installed:
Comptech Icebox
Spoon headgasket
HyTech header + exhaust (with integrated cat)
Hondata intake gasket
Toda A cams
Spoon cam gears
Hondata s200

(And of course, thanks to Mike M @ IPS!)


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Austin &raquo;</TD></TR><TR><TD CLASS="quote">What's the different between the runs, and do you have a baseline before you installed the cams and header?
</TD></TR></TABLE>

Didn't have any baseline runs. Car was totally stock before all this so I just figured it'd be about the same.


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Austin &raquo;</TD></TR><TR><TD CLASS="quote">Most important question...how do you like it?
</TD></TR></TABLE>

Unbelieveable... I can't begin to describe how much better the car feels compared to stock.

But not having ever ridden in or driving another ITR with any other setup, I'm not sure if I'm really making any kind of educated statement there. I guess that's the reason for this post. I'm wondering if some of the H-T tuning wizards here could provide some comments on the results... good, bad? Room for improvement?

 

That dyno ALWAYS puts out lower numbers. I can without a doubt say his car is making 200whp. I've personally seen a V6 Accord with a Comptech supercharger put down 24whp less on it than a Dynojet. He brought in his dyno to show the guys at the shop. I've been on that Clayton dyno a few times myself.

I have yet to drive ITRJunkie's car after he got it tuned (hint hint), but I thought it was pretty peppy before it has the mods. Maybe he'll offer me the keys this weekend so I can see how it handles/feels (you reading this ITRJunkie?).

 

How about a torque graph?

 

Looking the HP curve it seems the torque isn't quite where it should be in the midrange. You're barely making 100 lbs-ft torque before 5700 RPM. That may be able to be attributed to the dyno's "low readings" but still the HyTech header can be tuned to start producing power much earlier and give you a fuller powerband. If your VTEC point and fuel is tuned out properly you should be able to pick up at least 20whp or so in the midrange. With a Hondata especially I think there is more potential for improvement.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SurferX &raquo;</TD></TR><TR><TD CLASS="quote">Looking the HP curve it seems the torque isn't quite where it should be in the midrange. You're barely making 100 lbs-ft torque before 5700 RPM. That may be able to be attributed to the dyno's "low readings" but still the HyTech header can be tuned to start producing power much earlier and give you a fuller powerband. If your VTEC point and fuel is tuned out properly you should be able to pick up at least 20whp or so in the midrange. With a Hondata especially I think there is more potential for improvement.</TD></TR></TABLE>

After the dyno session, they did recommend I upgrade the ignition system and add a fuel pressure regulator - not really for any HP gains but to "smooth out the curve"?

SurferX, how are you reading torque values from the graph? BTW - the reason there isn't a torque curve has something to do with the way the Clayton was set up or something like that...

 

get the FPR
stick with stock ignition

 

Too late he bought and put everything in already. I am trying to get him to dyno on a Dynojet and get some torque numbers as well. He doens't seem to care about numbers too much.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ITRJunkie &raquo;</TD></TR><TR><TD CLASS="quote">
(And of course, thanks to Mike M @ IPS!)
</TD></TR></TABLE>

NP, #'s look Good Alvin, Congrats

 

HP is calculated from Torque.

HP = Torque * RPM / 5252

If you have HP you can figure out the torque by completing the formula.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cruzersi00 &raquo;</TD></TR><TR><TD CLASS="quote">HP is calculated from Torque.

HP = Torque * RPM / 5252

If you have HP you can figure out the torque by completing the formula.

</TD></TR></TABLE>

From that equation, all dyno plots should show the HP curve intersecting the torque curve at 5252 RPM... but they don't.

Not doubting you, I'm just asking for my own information.

 

If both HP and TQ curves are plot on the same scale, they do all intersect at 5252 RPM.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mafay2 &raquo;</TD></TR><TR><TD CLASS="quote">If both HP and TQ curves are plot on the same scale, they do all intersect at 5252 RPM.</TD></TR></TABLE>

you sure?

 

They always will, unless the scaling is off or overlayed improperly.

 

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

Parts installed:
Comptech Icebox
Spoon headgasket
HyTech header + exhaust (with integrated cat)
Hondata intake gasket
Toda A cams
Spoon cam gears
Hondata s200
</TD></TR></TABLE>

good setup

 

Damn I thought the torque would be a bit higher at 5200rpm. SurferX, what should his torque be...approximately at 5200rpm? Just wondering how much he's off by.

 

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

From that equation, all dyno plots should show the HP curve intersecting the torque curve at 5252 RPM... but they don't.

Not doubting you, I'm just asking for my own information.</TD></TR></TABLE>

They DO all intersect at 5252.

Notice that on most/all dyno graphs aren't on the 'correct' scale for readability sake.

 

A standard stock ITR will usually dyno right about where he is at (100 ft/lbs.) at that RPM.

Cruzer

 

I would really like to see your car on a dyno jet...I just pulled up my charts, and I know that you shouldn't make any cross examination between the two different dyno machines...but here is an example:

rpm-----me------you

4000----91-------73
4500---104------84
5000---121------95
5500---134-----107
6000---152-----127
6500---162-----144
7000---176-----156
7500---186-----171
8000---188-----181
8300---187-----185


As you can see there is quite a deffiency in the two tunes of the vehicles....but even if you give your plot a -10% disadvantage I'm killing you until we hit the higher rpm bands I think that you need to find a new tuner, that is my honest opinion, then make sure that you're present when the tuner tunes your vehicle...hell, most tuners would laugh when I tell them that I have vtec set at 3,300rpm for an NA vehicle, but that's what works with the setup, so who's to argue...

Austin


cliff notes...you're making decent power up top, need more tuning in the midrange, you should be making more. But it looks like it's pretty damn fast in the higher RPM band.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Austin &raquo;</TD></TR><TR><TD CLASS="quote">As you can see there is quite a deffiency in the two tunes of the vehicles....but even if you give your plot a -10% disadvantage I'm killing you until we hit the higher rpm bands
</TD></TR></TABLE>

Austin, aren't you running stock cams? If so, wouldn't that make the discrepancy even worse (again, ignoring any Clayton vs. DynoJet differences)?

 

You can calculate torque from HP using Torque= 5252(hp) / RPM.

I'd definitely like to see what you'd put out on a regular Dynojet. I'm on stock cams as well with my HyTech setup and I start out at a flat 115 lbs-ft torque and then jump up to 130lbs-ft after 5000 RPM and hold until 7500 RPM. Your curve seems to start out at only 100 lbs-ft torque and then jump to a peak of 115 lbs-ft after 5700 RPM.

Even if the numbers can explained away by a dyno that reads low, the torque generation can definitely start happening earlier than 5700 RPM with the HyTech as that's what it was designed to do. But the VTEC point needs to be tuned in to take advantage of the header design.


Modified by SurferX at 7:57 PM 6/27/2003