Or is there an easy way? I need about 300-500 more rpms. Is this somehthing that someone can do to the stock ECU or will I need a piggyback like a Hondata or something?

 

VAFC -- no?

 

No you can't do that with a VAFC.

 

hondata or chipped ecu.

 

hondata

 

What is your reasoning for raising the redline? I dont think our stock cams make much power after 8,000 RPMS. Or are you not using stock cams? Give more info please.

 

Here's the easiet way


5MB video for high bandwidth user and members of imagestation.com

http://www.imagestation.com/album/?i...9603832&idx=35

-aoib0t, who didn't have any pics of this vdo

 

I bet Todd is banging against the redline for a few seconds on autoX or road course. Even though stock cams don't make power past the redline, by raising the redline he can achieve smooth engine output w/o upsetting the car's balance and his concentration. That's just my opinion though.

 

Stock valvetrain has withstood bumping the 9100 RPM limit of my Mugen ECU.
I could have sworn you could up the redline with an VAFC, ... how about a "Fields" (sp) unit?

 

I thought the Mugen valve springs are the same as the stock ITR valve springs...if that is true then it should be able to handle up to 9000 rpms.

VAFC can't but I think the Fields can.

Guess I'm not much help

 

Mugen springs = OEM Honda springs

Thanks EP

 

no easy way... hondata, larger injectors... not much power out there for stock cams.. but extra 300-400rpm is better than hitting rev limiter at 8500

 

Bingo! I'm more concerned about not having to shift to third on an autox course than I am about making power up there. Afterall, even though power drops off, it is still better to to be on the gas and not on the revlimiter or rowing through the gears.

I have a Fields sfc-vtec. Unless they have changed them in the last year or two, mine doesn't do anything to the revlimiter. It just beeps at any rpm you want it to.

So who could chip my stock ECU to give me 8900 rpms or so?

 

Unfortunately, I don't know of anyone that does/re-chips these latest ECUs.
However, I do have a Mugen ECU for sale ... but you'll need a harness adapter for your car (but it plugs right into my '97).

 

simple easiest way is to get a "fields" not a apexi, vtec controler. the fields one allows you to remove the revlimit.

 

Again, do the newer ones do this, because my older Fields (circa 1999) doesn't touch the revlimit. Are you guys confusing the rev limit beep setting with removing the limiter? If not, then I'm off to buy a new Fields tomorrow...

 

AFAIK an add-on unit will not be able to increase the rev limit. The stock ECU shouldn't have any ignition or fuel maps above the rev limit, so by just eliminating or raising the rev limit you'd be asking for big trouble. I think a Mugen ECU would be the best easiest solution.

 

and for 1300 dollars its quite a waste

you can get a hondata 2, and get it tuned for you for less than 800 bux total.


[Modified by Soup ****, 12:10 AM 9/25/2002]

 

cheapest way would be hondata+donor ecu and sell the stocker....that way you get all the benefits of the hondata...

 

Contact Kenji (Kenji) on this board. He re-chips P28 ECU with many different progs. I'm sure he's got stock ITR setting and can bump the rev limit to 9,000+ rpm. I believe his best selling program is P28 re-chipped w/ Skunk2 prog. He also sells plug-n-play harness for you to hook up the P28 re-chipped ECU to your '00-'01 ITR.

 

i think the Mugen ECU raises it to 9100 and lowers the xover to 5300 with some other small changes...

Wouldn't that be the best thing? if so ask Kenji to make one up

 

as mugen or other chipped ecu might work, i can't see it as best thing, where you still need a vafc and still can't contol everything..

hondata + larger injectors (stock injectors run 100% duty cycle at ~ 8500RPM) will allow you to rev higher plus gain some hp.. (other option may be upping the fuel pressure instead of injectors - don't know how that would help.)

s200 is out now - replaces stage 2 3 4, and ads more control/features.

 

9100 redline, 4700 VTEC x-over

 

not for $1300 though, unless he were to buy eds

 

A few problems:

1) I can't replace the ecu with another different aftermarket unit (mugen)

2) I can't run an older obd-I ecu chipped because that would be replacing the oem unit.

However, I could run a 97 or 98 ITR ecu because of the scca update/backdate policy. But, I'd like to work with my stock ECU the best I can. Sounds like a piggyback hondata may be my best hope. Double-edged sword thoguh---who the heck is going to tune it? Performance shops around me can hardly tune a radio...