Here is my first Dyno run, this is untuned just wanted to see what I need to work on and adjust. Can you guys tell me what needs to fix and adjusted.



Modified by 98HB at 5:31 PM 11/28/2004


Modified by 98HB at 5:32 PM 11/28/2004


Modified by 98HB at 5:35 PM 11/28/2004


Modified by 98HB at 6:06 PM 11/28/2004


Modified by 98HB at 6:14 PM 11/28/2004


Modified by 98HB at 6:19 PM 11/28/2004


Modified by 98HB at 6:21 PM 11/28/2004


Modified by 98HB at 5:08 PM 11/30/2004

 

Is that tops of 175 horsepower?Graph is to small, but you're vtec is to eariler thats why it deeps down so much.Is vtec set at 4700?If so move it to 5200-5300 and it wont deep and lose power


Modified by LSVTEC_DC4 at 10:40 AM 11/28/2004

 

The motor is completly stock with an chiped p13 and the vtec points haven't been changed. I'll try to get a better pic.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LSVTEC_DC4 &raquo;</TD></TR><TR><TD CLASS="quote">Is that tops of 175 horsepower?Graph is to small, but you're vtec is to eariler thats why it deeps down so much.Is vtec set at 4700?If so move it to 5200-5300 and it wont deep and lose power


Modified by LSVTEC_DC4 at 10:40 AM 11/28/2004</TD></TR></TABLE>

its the low cam dropping off in power. NOT the high cam! The VTEC point is too high! Remove the IAB, shaft, seal off the holes and set the VTEC at 4400-4700. Also the engine seems to be running a bit lean.

 

Anyone else.

 

If you remove the IAB you will lose 10ftlbs until 4700rpm... bigger pic please and at least tell us what the peak numbers were.

Pirate

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PirateMcFred &raquo;</TD></TR><TR><TD CLASS="quote">If you remove the IAB you will lose 10ftlbs until 4700rpm... bigger pic please and at least tell us what the peak numbers were.

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

Peak numbers were 167whp. I tried to get better pic but it didn't work.

 

167.....what about torque???

 

Torque= 135

 

Can anyone resize this picture.

 

get a vtec controller and you will get better #'s....

 

Better pic added - Thanks


Modified by 98HB at 6:34 AM 12/1/2004

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PirateMcFred &raquo;</TD></TR><TR><TD CLASS="quote">If you remove the IAB you will lose 10ftlbs until 4700rpm... bigger pic please and at least tell us what the peak numbers were.

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

negative. Do not compare dyno graphs from a GSR engine when disconnecting the IABs. Totally different engine responds to totally different things. Generally most people loose 1-2 FT pounds of torque, but generally run faster down the strip cuz less flow disruption. I had problems making power below 5000 RPM when the VTEC was lowered cuz the IAB's were either malfunctioning or just not opening up soon enough. Anyways I lowered my VTEC to 4400 and got rid of the IAB's and man what a difference!

 

Here are the specs on the motor:
98 JDM H22
Stock Head
Stock Block
Image Ingineering Header
Crush bent exhaust w/resonator and Magnaflow muffler
AEM short ram intake
FPR
Chiped p13 w/Jet Performance chip, waiting to put in my Uberdata p28 w/dataloging.


Modified by 98HB at 8:05 AM 12/22/2004

 

looks good!

 

Looks like you need more fuel, bigger cams, and your Uberdata asap.

 

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

Uh, afirmative.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Honda_Tengoku &raquo;</TD></TR><TR><TD CLASS="quote">Do not compare dyno graphs from a GSR engine when disconnecting the IABs.</TD></TR></TABLE>

Who is comparing a GSR graph?

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Honda_Tengoku &raquo;</TD></TR><TR><TD CLASS="quote">Totally different engine responds to totally different things.</TD></TR></TABLE>

No ****?

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Honda_Tengoku &raquo;</TD></TR><TR><TD CLASS="quote">Generally most people loose 1-2 FT pounds of torque</TD></TR></TABLE>

yeah, generally you have no clue what you are talking about.
My H22A:
Red line no IAB (P28)
Green line IAB at 3700 (P72)
Blue line IAB at 4250 (P72)



So I see around 10ft/lbs of torque loss over a significant portion of the rpm band. So post your dyno and prove me wrong ya bastid.

Pirate

 

where did you dyno????

ok numbers

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PirateMcFred &raquo;</TD></TR><TR><TD CLASS="quote">
yeah, generally you have no clue what you are talking about.
My H22A:
Red line no IAB (P28)
Green line IAB at 3700 (P72)
Blue line IAB at 4250 (P72)
So I see around 10ft/lbs of torque loss over a significant portion of the rpm band. So post your dyno and prove me wrong ya bastid.

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


P72s and P28s huh. Arent we talking about the P13? The IABs open much earlier than the P13's as well as having different timing and fuel curves. That brings me to another point. After 3700 and 4200 RPM the graphs should be the same if the same fuel and timing curves are used. Well they dont. They arent even close. So obviously there are other varibles at work here. Timing, fuel curves, and perhaps more. Either this is a frod. Or u just straight up are too stupid to take this into account. Even when using the same ECU they are different. Either way this is not a true test or u are a silly little boy who plays on his computer trying to look cool. I have personally on the dyno pulled the vacuum line off coming from the IAB vacuum canister on the dyno. I lost 2 WHP. thats it.
Obviously like I stated when i tried lowering my VTEC point with the VAFC it would not respond very well until the IABs were disconnected. Since then I am down to 4400 RPM crossover point.

who is the idiot now?

 

Idiot or not I do not spout **** unless I have seen it to be true. The green and red lines are the same fuel and ignition tables, same engine, same day, same dyno. Just different ecu's. The blue is same engine, same dyno, more tuning, different day and different IAB event rpm. You should show some graphs illustrating your point, otherwsie pipe down.

Go to the Prelude forum , Prelude Dynos thread in the FAQ sticky, see how many of those dynos are tuned with a P28 or other management system that disables the IAB and you can see how there is always an odd slope where the IABs would normally provide more torque. Horsepower is a function of torque and RPM so If you lost 5ft/lbs at 3000rpm that is where you lost your 2hp.

Pirate

 

if everything where the same the power should be identical on all three graphs after 4200 RPM considering all three IABs are open and therefore all should make the same power. They dont. Something is definately off here as well as your analysis. Me to pipe down?? Your the one that took a pop at me first. Yes I did lose 2 ft pounds of torque up to rougly about 4,000 RPM or so. Also I have done research about this. This is about what I found for the H22A. Now the GSR engine from what I have read people loose tons of torque. Like 10 foot pounds of torque. That is why I assumed u (as well as some others) try to compare the GSRs IAB system to the H22. That was my mistake and my incorrect assumption. Like I said I had a problem with my IABs opening too late when I lowered my VTEC crossover point. Next time use the P13 ECU, which is what we are talking about here. Disconnect the IAB vacuum line. Run it, and connect it back up and run it again. Thats what I did. Then I lowered my VTEC down to 4400 RPM. Now I have made more power from 4400 to 5000 than B4 without IABs. Yes I did loose some below 4,000. But since i live in the higher RPM's I do not miss it. Actually since then I have now installed an ITR 62 MM throttle body. cut out the IAB shaft and JB welded the holes up and port matched the 3 piece manifold (crappy factory port matching if u ever look at it). In theory this should provide less flow disturbance and more volume. The result IMO should create a few more HP in the higher RPM band which is were I want it. The difference. Big! But since I did two mods and a port match at once I cannot give an accurate explanation of what really gave me the power. Why? cuz I put more than one variable into the equation. Just like u. The only difference is I understand this. U dont.

 

Lets say we get back to my Dyno graph

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98HB &raquo;</TD></TR><TR><TD CLASS="quote">Lets say we get back to my Dyno graph </TD></TR></TABLE>

Anyways with your mods it does seem a bit low. U dynod very close to mine, but I had an AEM CAI and magnaflow exhaust and thats it on mine originally. My final AFR ratio was 12.8 (little on the rich side) and mine dynod at 169 WHP. Now ideally the AFR should be somewhere around 13.3-13.5 in the hi-cam. So above 7000 u seem to be a bit rich as I was, but below 7000 u are running abit lean. This means when u get your datalogging P28 ECU the tuner should shoot for around 13.4 AFR and pick up a few more peak HP. THis is stock timing I take it? Usually people run anywhere from 30 to 35 degress of total timing. There is a few HP to be gained here as well.
Another thing I have found was using a CAI nets u a few more HP as well. Also it keeps alot of resonance out of the car as well. As far as people sucking up water well I have used a CAI on my cars for the last 4 years without a bypass valve in very heavy rainy climates. WHat I can say is if u are careful and conscience of what u are doing u will be fine. Only idiots blow their cars up that way.
Now as far as your IABs goes... u have a vacuum line coming off of vacuum canister that goes to a small vacuum diaphram. Pull the vacuum line off at the diapram and watch your IAB shaft. I should snap open. The IAB are spring loaded open and vacuum closed until a predetermined RPM. So to run without them all u have to do is pull the vacuum line off and they are open permanently. Personally I would try this on the dyno and try lowering VTEC in conjunction with this and see what happens. Personally it worked for me. Obviously this will not give u peak numbers but give u some from a lowered VTEC point up to 5000 or so, but IMO any place u can gain is a good gain(not to mention 1st to second gear wont drop u out of VTEC anymore)!! good luck.

 

Thanks for the feedback guys, When I get the p28 put in I'll re-dyno the car and see what happens.