Topic: J series ecu (Read 43305 times)

crxvtec91 · « **on:** October 30, 2011, 06:55:25 PM »

looks like Don from RPM systems is coming out with his own setup for these ecus. http://www.j32a.com/showthread.php?p=14238#post14238

PhilStubbs · « **Reply #1 on:** October 30, 2011, 07:02:48 PM »

hopefully its cheaper than AEM

i really want to get into the J stuff

Gold DA9 · « **Reply #2 on:** October 30, 2011, 07:14:29 PM »

im sure it will be cheaper than the AEM unit. But you also have to pay for all the time and money he put into it to get it where it is now.

crxvtec91 · « **Reply #3 on:** October 30, 2011, 07:29:47 PM »

Don is a good guy, just cant wait for it to come out. My Hx-35 is going to make its way onto the j35 4dr

Joseph Davis · « **Reply #4 on:** October 30, 2011, 08:18:59 PM »

MS3. ?

crxvtec91 · « **Reply #5 on:** October 30, 2011, 10:07:37 PM »

Quote from: Joseph Davis on October 30, 2011, 08:18:59 PM

MS3. ?

Does not appear to be.

92CXyD · « **Reply #6 on:** October 30, 2011, 10:54:29 PM »

Local Hondaphile has been keeping tabs on this, and expecting a prototype soon, he really wants to boost his v-6.

Looks like I will involved in tuning his car when get one of these ecus.

Then he wants a m90 adapter from Weir and go racing this summer.

HiProfile · « **Reply #7 on:** October 31, 2011, 12:51:24 AM »

M90 & j-series all shoved behind a civic/teg seat. My next dream.

PhilStubbs · « **Reply #8 on:** October 31, 2011, 06:55:20 AM »

My roomate is trying to talk me into doing that to her ep3.

crxvtec91 · « **Reply #9 on:** October 31, 2011, 10:12:57 AM »

We already to crank this J35 up and see what the limits are. I wonder if it will hold 20psi from the hx

PhilStubbs · « **Reply #10 on:** October 31, 2011, 11:50:39 AM »

Sewell keeps claiming 600+whp is possible with stock blocks.

Joseph Davis · « **Reply #11 on:** October 31, 2011, 12:23:00 PM »

Sewell claims many things, among them heterosexuality. WHO DO YOU BELIEVE??

PhilStubbs · « **Reply #12 on:** October 31, 2011, 12:47:33 PM »

600 doesn't seem out of the question to me, but it's a shit load of power on any OEM N/A jap pistons.

He does beat the shit out of that yellow crx with the stock b16 at like 26psi. Maybe he knows something none of us do.

crxvtec91 · « **Reply #13 on:** October 31, 2011, 02:53:54 PM »

Quote from: Joseph Davis on October 31, 2011, 12:23:00 PM

Sewell claims many things, among them heterosexuality. WHO DO YOU BELIEVE??

JD you up to tuning this thing?

Joseph Davis · « **Reply #14 on:** October 31, 2011, 05:51:10 PM »

Quote from: SecksyPeePee on October 31, 2011, 12:47:33 PM

600 doesn't seem out of the question to me, but it's a shit load of power on any OEM N/A jap pistons.

He does beat the shit out of that yellow crx with the stock b16 at like 26psi. Maybe he knows something none of us do.

CRX + 26 psi = wheelspin. Wheelspin = motor is not loaded, so it doesn't break. CRX = weighs nothing, so the motor is never loaded and it doesn't break.

Joseph Davis · « **Reply #15 on:** October 31, 2011, 05:51:37 PM »

And, yeah, I'm J-curious.

ratcityrex · « **Reply #16 on:** October 31, 2011, 05:52:40 PM »

Its not the motor I would be worried about.

PhilStubbs · « **Reply #17 on:** October 31, 2011, 06:31:14 PM »

Quote from: Joseph Davis on October 31, 2011, 05:51:10 PM

Quote from: SecksyPeePee on October 31, 2011, 12:47:33 PM
600 doesn't seem out of the question to me, but it's a shit load of power on any OEM N/A jap pistons.

He does beat the shit out of that yellow crx with the stock b16 at like 26psi. Maybe he knows something none of us do.

CRX + 26 psi = wheelspin. Wheelspin = motor is not loaded, so it doesn't break. CRX = weighs nothing, so the motor is never loaded and it doesn't break.

i am aware. probably how i managed to get a friends T-70 gsr to hold up for a year at 26psi/430whp(i know, kinda low power but it was a street tune) on pump gas. he sold it, they took it straight to the dyno where it blew up during tuning. this shop also split a 75mm sleeve with vitara pistons at 300whp.

crxvtec91 · « **Reply #18 on:** October 31, 2011, 10:36:41 PM »

Quote from: SecksyPeePee on October 31, 2011, 06:31:14 PM

Quote from: Joseph Davis on October 31, 2011, 05:51:10 PM
Quote from: SecksyPeePee on October 31, 2011, 12:47:33 PM
600 doesn't seem out of the question to me, but it's a shit load of power on any OEM N/A jap pistons.

He does beat the shit out of that yellow crx with the stock b16 at like 26psi. Maybe he knows something none of us do.

CRX + 26 psi = wheelspin. Wheelspin = motor is not loaded, so it doesn't break. CRX = weighs nothing, so the motor is never loaded and it doesn't break.

i am aware. probably how i managed to get a friends T-70 gsr to hold up for a year at 26psi/430whp(i know, kinda low power but it was a street tune) on pump gas. he sold it, they took it straight to the dyno where it blew up during tuning. this shop also split a 75mm sleeve with vitara pistons at 300whp.

JD tune 45mpg, 408hp and 350ft /lbs

Joseph Davis · « **Reply #19 on:** October 31, 2011, 11:26:24 PM »

I trade power for mpg. I suck like that.

crxvtec91 · « **Reply #20 on:** November 01, 2011, 12:14:28 AM »

Quote from: Joseph Davis on October 31, 2011, 11:26:24 PM

I trade power for mpg. I suck like that.

700 miles for under $60 in gas is win!

HiProfile · « **Reply #21 on:** November 01, 2011, 12:08:18 PM »

If people are claiming 400whp DD stock gsr's, i would guess a J could do at least that with more torque. 93 octane would allow for over to 600whp given the extra displacement.

I do agree that the motor is not the weakest link. But at least the motors spin the right way, so adapting a stronger transverse trans is always a possibility.

Joseph Davis · « **Reply #22 on:** November 01, 2011, 05:35:07 PM »

I did a 377whp daily driven GSR (in a hatch), lasted a couple years before the owner took the kit off due to lots of blowby. If those are uncorrected numbers, 400 is a shit ton of power, but I believe it.

sewell94 · « **Reply #23 on:** November 02, 2011, 12:30:31 AM »

Quote from: Joseph Davis on October 31, 2011, 05:51:10 PM

Quote from: SecksyPeePee on October 31, 2011, 12:47:33 PM
600 doesn't seem out of the question to me, but it's a shit load of power on any OEM N/A jap pistons.

He does beat the shit out of that yellow crx with the stock b16 at like 26psi. Maybe he knows something none of us do.

CRX + 26 psi = wheelspin. Wheelspin = motor is not loaded, so it doesn't break. CRX = weighs nothing, so the motor is never loaded and it doesn't break.

That would normally be true, but the car lives on drag radials and is 91 Si thats not exactly light.. It was 09 Nscra drag radial champ. The car has a shit ton of passes on it. It made 13 passes in one night all between 117.-11.5 on the drag radials. The car dead hooks 3rd at 28lbs. So its not some unloaded bs. I'd put good money up that it would beat any other fwd honda on a real drag radial, on this site, including Spikers. And thats even with its almost 10yr old drag trubo kit.

Owner used to run the 11.5 index class with it. Its been mid 10's on a drag radial @ 130+. It has been turbo'd since 04, always been on a stock block, the first block cracked a sleeved in 06, on a super cold fl night, smacked boost cut real hard at 29lbs. That motor had almost 150 passes on it with countless street races. Threw another stock bottom end in, and even reused the head gasket. This current engine has over 100 passes on it and is still going strong.

sewell94 · « **Reply #24 on:** November 02, 2011, 12:37:11 AM »

Quote from: SecksyPeePee on October 31, 2011, 12:47:33 PM

600 doesn't seem out of the question to me, but it's a shit load of power on any OEM N/A jap pistons.

He does beat the shit out of that yellow crx with the stock b16 at like 26psi. Maybe he knows something none of us do.

I know for a fact the J series are strong, i tuned a stock one years ago that broke 600. They make 300 stock, almost any engine with a decent tune will hold 15lbs, what makes anyone think that a stock one wont do that?

You guys are looking at it completely wrong, its all about cylinder pressure which pushes on the piston which pushed on the rods creating a twisting force on the crank, which is tq, from which hp is calculated from. A j32 making 600hp is like a gsr making 400hp, that's 100hp per cylinder. A j32 making 600hp is less hp per L(187hp/l) than a gsr making 400(222hp/L). Less hp per liter mean less cylinder pressure. Excessively high cylinder pressures is what breaks stuff, ie denotation.

As much as we love the 4cyl stuff, i really believe that honda built their 6cyls stronger, ie used in their at the time flagship model NSX. Which makes me think maybe they'll hold even more than most people think.

The v8 guys wont admit it but what were doing is quite amazing. What the better b series guys with relatively stock engines( ie head, block, crank) make alike 8-9hp per ci, thats on par with the badass current pro mod's. And it all come down to cylinder pressures, that means a b series car that goes 8's that uses a stock heads, crank, and block create and hold the same cylinder pressures as a pro mod. Think about it.

ratcityrex · « **Reply #25 on:** November 02, 2011, 12:58:08 AM »

How long b4 we see a "i need a built trans for my j motor" thread?

crxvtec91 · « **Reply #26 on:** November 02, 2011, 09:17:08 AM »

Quote from: ratcityrex on November 02, 2011, 12:58:08 AM

How long b4 we see a "i need a built trans for my j motor" thread?

Hope that doesnt happen, the gears are 2-3 times thicker then a sohc. We just had the trans apart to replace a few parts with reverse as it was a freak accident that took it out.

sewell94 thanks for the info, with as cheap as these motors are we are going to push it hard!

fe3tcourier · « **Reply #27 on:** February 12, 2012, 12:04:06 AM »

FreeEMS is rocking J fuel only from a single cam sensor, dude is happy with it so far, best MPG he's ever had and out drag racing without a tune and winning LOL. Read about it here:

http://forum.diyefi.org/viewtopic.php?f=55&t=1560

I'll be adding proper support that can handle ignition and do semi sequential and wasted spark pretty soon and later in the year it'll support full sequential and COP at the same time. Currently limited to 6 precision outputs total (use them for whatever you want, 6 fuel or 6 ign or 3 of each).

Yes, it's 5am, always working hard :-)

Fred.

HiProfile · « **Reply #28 on:** February 12, 2012, 12:51:42 PM »

Wow Fred, looks tits. J-series is definately a nice niche to get into. It's getting much more popular but still lacks options.

Now for that car, I presume it's a staged setup, what some people call compound boost?

Edit - looks like it's compound, but an odd configuration that might be restrictive. The typical routing would go big turbo outlet -> small turbo inlet then to the fmic, but with the same exhaust routing. But I guess if it works...

Gold DA9 · « **Reply #29 on:** February 12, 2012, 07:27:54 PM »

im lurking all around all the j-series stuff.... just bought a AEM FIC used with extension harness.. but dont know if im going to use it.

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Author Topic: J series ecu (Read 43305 times)