I'll soon be getting a P28 ecu chipped. Im trying to decide between the two peeps that I know I can trust from this board.

My question to you guys, have any of you guys seen or done any comparo's between the two. My set-up for now will be the following.

JDM GSR motor
Skunk2 manifold
64mm TB
Ctr/Itr cams(portflow&ITR valvetrain)(maybe go skunk2 stg1 later)
Vafc
2.5 exhaust(High flow cat&testpipe for track)(ES ovel for street&N1 for track)
DC JDM 4-1
B&M FPR
310 RC injectors
Walbro 190FP
AEM CAI(sometimes ITR stock intake with K&N filter)
Mugen headgasket
Hondata manifold gasket

I wanted to know why you guys picked one of the two to program your ecu and why? I've seen graphs from kenji users before, but havnet seen any graph from any katman users. So if any one has a opinion or graphs to compare it would be great. Also difference in pricing between the two.

I also feel this is semi-R related because I know alot of you guys use kenji more than most on this board. And I can always count on you guys for honest answers.

TIA JPrizzle

 

heres Kenji's dyno.. the one he sent to me.
the red line being his ecu


I ordered from Kenji because of his reputation on honda-tech.
When i decided to do business with Kenji, his reputation proved correct.
Kenji is an honest person and backs up his work 100%. I don't know how Kenji's prices compare to others, but I was not worried about the price because of the saying "you get what you pay for". This meaning, not only did I get an excellent product, but there was not one moment when I thought I would get ripped off by Kenji. And not only that, after I got my harness adapter and ecu, I through some codes (which were NOT Kenji's fault..but MY fault)... Kenji offered a helping hand and said he would take the ecu and harness right back to test it on his very own car just to make sure he held his half of the deal.

Kenji -

 

thanks for the chart. The blue line, which ecu was that run with? The kenji ecu put out some real nice numbers in the midrange(which I like).

 

i believe the blue is a stock ecu

 

What mods was on that set-up? I'll try to get Chris N to post his graph with the kenji ecu he borrowed from Cosworth. I believe he made nicer numebrs with his stock(But cant remeber what the midrange looked like). And I think he needed to do something else in order for the kenji ecu to produce which he forgot to do.

 

 

At the time of that dyno (about 1.5 - 2 years ago) I had the following mods:

JDM ITR header
Iceman CAI
64mm TB
test pipe
5Zigen Border304 exhaust
cam gears
Mugen headgasket

There was no fuel controller (e.g. VAFC or Field) used on those runs. The gains up top and down low would have been more substantial if I would have tuned the fuel.


Jonas,

Thanks for the kind words. I am glad you like the ECU and harness.

-kenji

 

Thanks for the info Kenji. I'll be sending you IMs or Emails to get some more info for you and talk about the set-up I plan to run.

 

I am using Kenji's P28 as well. My graph is a little similar to the one posted. I'll post it later when I get it scanned. Great ecu.

 

<-- another kenji harness/P28 user. I like it alot! If you are worried about any problems with the ecu or the harness, don't. The only code I got was for the vtec PS, which was because I didn't have one. Now that it's all working good now, I think this ecu is the bomb!

 

sorry to jack the thread but.....what exactly is the difference between using a V-afc and a chipped ecu like kenji's.
What can one do that the other one cant. And why would you need to use both together?

Thanks, mike


[Modified by ITRmike98, 4:13 PM 12/18/2002]

 

Kenji is the MAN!

Not only does he offer a Great product at Great prices He is also a Great guy!

eric

 

Nah, Im not worried about any problems with the ecu at all. I was just trying to compare the two ECU's(Kenji's&Katman's)to see if either made any different hp in different levels of the rpm range mainly. I've seen enough post and threads to know that kenji is a trust worthy guy, along with Katman.

Thanks for all the info guys.

Also wont be needing a harness, my car is obd1

 

If you are sorry to jack J's thread, why did you do it in the first place?

VAFC and a chipped ecu are two totally different things. VAFC allows you to adjust vtec xover and adjust the air/fuel at certain rpm settings, settings that you choose. You can only have so many of them, though. 8? 10? (didn't read my manual yet) You don't have the flexibility you have when you can alter the fuel maps, etc, in an ecu. I'm sure kenji or someone with more knowledge will jump in and explain.

J - when I borrowed Seans old ECU ( I guess now it is Brian's new ecu! ), it was setup for mild cams + i/h/e. The ecu ran almost 1-2 points richer (i.e., almost always between 12:1 and 13:1 than my stock p73. I could not tune at the time, so i was unable to realize any gains. However, given the richness across the board of the ecu when I dyno'ed with it, I'm sure I could gained considerable power in the midrange for sure, and probably even up top since there was a good deal of room to lean out the fuel. Quality wise? Top notch. The harness was great and I had no problems with the ecu in my car and have never heard of a quality issue from kenji. Hope that helps my friend!

 

Yeah, thats what I was trying to remeber. I had read it on one of the post you made when you showed your dyno sheets.

Ok heres a question for kenji, or anyone who might know. Say I go with MY CTR intake/ITR exhaust cam and Mugen headgasket. And then decide to go with skunk2 stg1 cams and want to up the compression(which I highly doubt unless really needed). Would the program that I had still be able to work on the new set-up, or would it have to be re-chipped in order to see the full potential of the new set-up?

If anything, I think only the cams would be switched out. But all of that is really going to decide on when tuning time comes around and see what kinda power I can get out of the R cams. Im not aiming for alot of whp(mostly midrange power). I think I'd be happy with 180-185whp. The set-up I have now on my GSR w/LS tranny puts a smile on my face. And I should be getting a ITR tranny within the next month. SO I know thats going to make a big difference over the LS gearing.

once again, thanks guys.

 

J - I think upping the compression slightly and/or changing out the cams from itr/ctr to skunk2 stage 1's would probably not require a new program. I think you could correct for these changes with your vafc. This is as long as you have a mild or mid cam program from kenji/katman to begin with.

Katman = jdmhondaparts.com guy?

 

These are the mods I have now.

JDM GSR motor(10.6:1)
Skunk2 manifold
Ctr/Itr cams Portflow&ITR valvetrain(Not installed yet)
Vafc(untuned)
ES oval exhaust
DC JDM 4-1(2.5Highflow cat&testpipe)
B&M FPR
Walbro 190FP
ITR stock intake
ITR clutch&flywheel

Parts to be added soon.
64mm TB
2.5 system and N1 exhaust
310 RC Injectors
Mugen headgasket
Hondata manifold gasket

Maybe go skunk2 stg1's

 

Yeah Chris, For now Im just upping the compression with the Mugen headgasket and add my CTR/ITR cams for now. The skunk2 cams would only come if I cant get enough or want more power out of the motor. Same as the block, that wouldnt be til next year unless I could have that done by March. But you never know what might happen with a block build up, so I think Im just going to hold off on that.

 

bump y0

 

So is the kenji program like the Mugen program in that it dumps mad fuel in order to run aggressive timing??? (granted, I'm sure the is secretive stuff)

I wouldn't have much interest in getting ***-like mileage for a street car...

 

I have used a few of Kenji's ECUs and they all made power, I put a civic Si together with Toda A cams , and the usaul bolts ons and I used Kenji's ECU and harness and it put down 176 and 118 TQ. I was surprised , B16A's never make torque, It is now running a fully built B20Vtec which will soon be dynoed.
" The almost world famous Kenji ECU "

 

You guys have been very helpful as always.

But I guesss there are no katman ecu users in this forum. But its all goodie