NEVERSUMMER

Well went and put down some numbers today. And some pretty F'in good numbers and gains if I must say.

Before: 237whp 208tq

After: 242whp 212tq

Im pretty impressed. I have the dyno video and dyno chart I will be posting asap. It was a dynojet dyno as well. Were the vtec was kicking in I was dropping power, but then they tuned and made ajustments and its all gain now. They said the differance between the drop in power when vtec engaged before and after was at least, if not more then 30hp across the whole rpm range.

For being a mile above sea level this is great... Dont have traction through 1st and 2nd but hey, what can you do...

So are these #'s one of, if not the highest #'s you guys have see for a N/A?

Chime in, tell me what you think. And my mods are in my signiture.

gc86

Dyno sheet please so I can examine

NEVERSUMMER

You know I will... Proof will be on here asap!!!

ms_cls

first off nice numbers.

i know what will make it better, upgrade one of your mods, the last one you have in your signature, give me your car

you have anyplans to do anything else to her??

Accord_V6_400m

iTrader: (1)

Haha!!

Alright I know excatly what your talking about, check to see if your IMRC is working!! The might have improperly installed the NEO and disabled the IMRC, its happened to me.

NEVERSUMMER

Why, what you mean. Are those not good numbers?? I did check it, and it works fine.

gc86

They are a little low, you dyno'ed only 7 more whp than me and we have the same mods but you have spacers. I want to see your dyno sheet with the AFR on it also.

I have an auto.

Accord_V6_400m

iTrader: (1)

Well I think your torque is being affected not so much your peak hp numbers but your mid range and most of your high end as well, take a look:



In the graph im showing the same huge power gap that your describing. It shows the IMRC not working and then the NEO being tuned to compensate for it.

typeR

what it shows is ur imrc not working one time then next it is working...not uncommon

NEVERSUMMER

Wait so, they installed it wrong or something??? Because I checked it and it works fine... Now im confused. So its interminitly(<spelling) working now?

NEVERSUMMER

What mods you have??

Accord_V6_400m

iTrader: (1)

See not quite... the NEO basically tuned out the IMRC because it wasn't working before then, or thats how I remember. I was having problems with it being wired up the whole time, and it all pretty much started with the NEO install.

What im trying to say is if you have plenty of bolts on the your peak hp numbers with the IMRC working/not working will be decievingly close, but if you feel like the torque isn't there then thres always that possibility.

Just post up your dyno I want to see whats going on

NEVERSUMMER

Breaking loose 2nd and 3rd



dyno pull

gc86

You're IMRC is broken or they didn't wire it up properly, do you have air fuel readings? i'd like to see them also.

NEVERSUMMER

You know what I did noticed. I think they changed the vtec to engage right at 5000rpm. Then there is a jump in power it feels like. Maybe if I put that back a default then there will be more power through out the whole range?!?!?!?

How do I do that If that is a good idea?

NEVERSUMMER

Well I checked it, and its opening? How do you know its not working properly?

horsepowercrzy18

hm seems like its lacking something. mayy be a malfunctioning imrc. may open sometimes and some not. i had that problem. replaced it. you should be seeing at least 10 more wheel hp

typeR

they tend to go in and out at first ...in both dynos u are seeing a non working imrc in the one instance it has opened again and no NEO is fixing that ....

NEVERSUMMER

Yay.. Now i just through a 2 through 6 cylinder mis fire cods, random multi mis-fire code, fuel train code. WTF do I do now??

horsepowercrzy18

i have a similar problem. its like a p1259 code or somethin like that. says fuel metering

NEVERSUMMER

whats the part number for the IMRC?

NEVERSUMMER

found it.

horsepowercrzy18

17151-pfw-j02

NEVERSUMMER

Its engaging and staying open when held over a certain rpm range. But if you guys say its broke then Ill buy one.

You have had those same codes???? I just unpluged the negative to my battery to see if it will come back on.

horsepowercrzy18

also i think we both need to replace our o2 sensors. i believe thats what the p1259 code is.

NEVERSUMMER

how has it been running? Is this a major issue? I just hope nothing is broke

typeR

ur codes could easily be running for a while with the imrc not opening it compensates then opens now the added air creats a lean condition ...just a thought

horsepowercrzy18

ima replace my o2 sensor. my car shuts off literly at 120, the vsa light comes on and check engine light comes on. i try to stomp on it and it just sits at 3000 rpms. i stop and shut my car off and restart it and the lights are gone. i thinkk my sensors are out andd my tranny may be goin out cuz it only does it wheni shift to 4th gear

NEVERSUMMER

Even though the IMRC is opening can that mean that it is broken in the way of it will be on then off then on like what you said typer. Would replacing it stop that?

And this might be a stupid question. But is the IMRC the only thing that has to do with the vtec system? Cause on my neo my vtec controls say High Low 4600 and Low High 4000. I dont know if thats bad or not, but it just seems like a get bursts of power and then somethimes I wont.

gc86

Sounds like they changed your vtec point.. either way you need to doule check your NEO wiring, from the dyno your base run indicates your IMRC is not opening at 3800 rpm. And they tuned the neo to compensate for that. First things first, you should change your IMRC and put a new one in. Than bring it back to the tuner and have them re-dyno your car. Because if your IMRC wasn't working and than you get a new one your tune is going to be off and you could run really lean which in turn could damage your engine. Fried piston rings ftl. BTW dont mash on it when you get your new IMRC, just bring it straight to the tuner. DONT MASH!

gc86

clear your pm's neversummer, and yes take a picture and i'll try to tell you if its wrong.

horsepowercrzy18

i took my imrc apart and i had a broken tooth on the gear. thats why sometimes it would open and close randomly

Accord_V6_400m

iTrader: (1)

What did I say about your IMRC

As for VTEC changing theres also a VTEC unmatch that is a compensation taken for changing VTEC which basically adds more fuel.

Doesn't seem like they new how to wire it up that well, had the same problem at first...sigh.

At one point my IMRC was opening up backwards haha.

When I had the same problem I would also misfire from time to time, but that was also because the guy leaned it out too much.

Also try running your car in 6th gear from 50mph up and see how smooth the powerband is

NEVERSUMMER

As for the 6th 50 and up. Ive done that and there is hesitation before 3000rpm's and then after theres is a hard pick up in.

And I checked the vtec unmatch and there both a 0% if i remember right. So that means they didnt mess with that. What does yours say.

So I def need a new IMRC??? Because Ive tested it and I dont want to spend the money if I dont have to. But I did notice it might not be opening all the way, but pretty much there.

And thanks again for all them help so far guys.

gc86

Seems like you guys need to do your NEO install yourselves. I don't have any IMRC issues

Take a picture of your wiring harness neversummer so I can take a look.

typeR

IMRC issues are intirely independant of the neo... the electric motors plastic teeth begin to sheer off

NightRider

If the VTEC Hi/Lo is 4600/4000, that means VTEC is kicking in at 4600 of course. You do need to mess with the VTEC unmatch, if not then even though the cam will changeover, the ecu will not recognize it and will not adjust a/f accordingly. For your mods and 6MT it seems the numbers should be maybe 5-10 higher on both. The speedo is 200-300 off, if you go to the rpm display it will show a max rpm of 6900 or 6999 can't remember which. So although VTEC normally kicks at 4800, it looks like 5000. I am actually going right now to autozone before school to check if I am throwing any codes. I know when I had the vtec controller hooked up, sometimes it would throw CEL and kick in rev limiter at 5500, and limit power as well. I'll check this thread later tonight. Check that IMRC, I might be in the same boat. Good luck.

NightRider

OBDII'ed it, low and behold a P1739 transmission code is being thrown...no misfires though.

joeman892

Hey guys im currently waiting for the money to get a tune with my NEO, and i was wondering if an improper tune could make the IMRC go bad, or make me throw any codes, and if so what are some things i could tell the guys to avoid / advice for giving me a proper tune. Oh yea.. how would you change the IMRC? is it hard? thanks a lot in advance.

Tweek

Let me jump on the newbie train and ask a few untrained questions. IMRC stand for?

Also, the NEO seems like a very efficent mod. How hard is the install? Im very interested in one of these jaspers.