Topic: crx2000 thanks to my rhmt nogs (Read 9022 times)

weirtech · « **on:** June 08, 2013, 10:17:22 AM »

tuned.
CRX2000 dyno zaps

malichite · « **Reply #1 on:** June 08, 2013, 10:33:26 AM »

Fuck yes. Now big smokey burnouts!

turbohf · « **Reply #2 on:** June 08, 2013, 01:17:33 PM »

crxvtec91 · « **Reply #3 on:** June 08, 2013, 10:05:37 PM »

Quote from: crxvtec91 on June 03, 2013, 09:52:11 AM

465hp
278ft/lbs

Does that mean I win?

colt45 · « **Reply #4 on:** June 09, 2013, 02:05:08 AM »

nice one Aaron

jdmhatchracer94 · « **Reply #5 on:** June 09, 2013, 11:16:23 AM »

Hell ya

bigdaddyvtec · « **Reply #6 on:** June 09, 2013, 09:30:48 PM »

What boost?

thats lightish power for that turbo on pump... Not even pushed.

weirtech · « **Reply #7 on:** June 09, 2013, 09:57:28 PM »

it is more than enough for me. currently running 8psi spring. it hits bull boost at 5k and creeps to 13.5psi at 9k. there is a really fucking weird dip in the plot though. just before 4k it drops out lean and sputters and bangs, then once it is past it, its fine. the tuner who is an aem dealer has never seen anything like it. i'm thinking it is the ecu. what do you guys think?

aaron

rawr · « **Reply #8 on:** June 09, 2013, 10:42:59 PM »

I almost gaurentee its not the ECU. I would say its an issue with a bad sensor or wiring.

If it was the ecu, it wouldn't be a spot in the range, it would be the whole cha-bang. Sensors can and will provide bad data at certain points (especially transducers like your map sensor), wiring can pick up and weird shit and cause issues with components through inductance, poor insulation, poor contact etc.

I'd say there's about a 5% chance its the ecu and I mess with shit like this all day long tracking down problems in electrical systems a lot more advanced than an automobile.

Its probably something fucking stupid like a lose pin imho.

Joseph Davis · « **Reply #9 on:** June 11, 2013, 07:13:59 PM »

It's the ECU, or a ground. Sounds like something is forming a tank circuit.

highroller54 · « **Reply #10 on:** June 11, 2013, 10:12:19 PM »

Quote from: Joseph Davis on June 11, 2013, 07:13:59 PM

tank circuit.

definition please

weirtech · « **Reply #11 on:** June 11, 2013, 11:16:48 PM »

tony seemed to think it was a ground... hence all the added straps in the video. the harness is grounded properly, as is the battery and everything else. i had another friend suggest it might be an unshielded crank sensor wire. this flat spot in the tune was there from the beginning when we first started the engine up. i think it is the ecu personally, but i'm not a tuner so my opinion is about as useful as shampoo is to jd.

Joseph Davis · « **Reply #12 on:** June 12, 2013, 08:46:04 AM »

Tony the Tiger?

weirtech · « **Reply #13 on:** June 12, 2013, 02:59:00 PM »

correct.

Joseph Davis · « **Reply #14 on:** June 12, 2013, 03:59:23 PM »

S2000 like to blow the current limiting resistors of the V1 boxes. I've fixed a few that happened to, no idea how they behaved like that as I found running test vehicles *after* they had been repaired. V2, while being a very close clone of V2 has some interestin issues of its own - I know Blundell has encountered a lower than requested revlimit on an 05 NSX with V2, that the vwhicle did not exhibit with anything else plugged in it's place.

weirtech · « **Reply #15 on:** June 17, 2013, 11:12:14 PM »

jabberwock · « **Reply #16 on:** June 17, 2013, 11:36:04 PM »

Torque curves honda wet dreams are made of. 4k rpm solid

Joseph Davis · « **Reply #17 on:** June 18, 2013, 07:20:20 AM »

Does it feel like a big drop out? Where is VTEC crossover - should be a lot after 4K, but I gotta ask.

DSharp · « **Reply #18 on:** June 19, 2013, 12:08:38 AM »

Just add some timing and boost where the dip is, it will level right out!

How high are you planning on revving this thing?

70challenger · « **Reply #19 on:** June 19, 2013, 12:42:06 PM »

Awesome, can't wait to see some street videos of this thing

weirtech · « **Reply #20 on:** June 20, 2013, 07:16:31 AM »

Quote from: Joseph Davis on June 18, 2013, 07:20:20 AM

Does it feel like a big drop out? Where is VTEC crossover - should be a lot after 4K, but I gotta ask.

6000

Joseph Davis · « **Reply #21 on:** June 20, 2013, 09:59:37 AM »

Slap some ground straps around your engine bay, see if there is someone local with the same AEM box that you can test with.

Also, pull your cam and crank sensors out and wipe them off. You might have trash on one causing a hiccough.

weirtech · « **Reply #22 on:** June 20, 2013, 10:37:23 AM »

thanks jd. ground straps were added @ the dyno. i will pull the sensor & have a look. i actually have a complete second set.

HiProfile · « **Reply #23 on:** June 20, 2013, 11:38:25 AM »

The dip seems to occur right before torque ramps up, so I'd guess right at the onset of boost? Is it ONLY at 4k, or have you ever noticed it when starting the dyno at a higher rpm?

weirtech · « **Reply #24 on:** June 21, 2013, 07:47:39 AM »

always same range. it is annoying as fuck on the highway. cruising rpm is right there. it sputters & pops 3800-4000rpm.

PhilStubbs · « **Reply #25 on:** June 21, 2013, 04:22:00 PM »

So, load makes no difference, just rpm?

Minor Threat · « **Reply #26 on:** June 21, 2013, 06:51:58 PM »

Also, I forget if you made your harness/had it made, but all your ign signal wires are shielded properly?

weirtech · « **Reply #27 on:** June 22, 2013, 09:40:56 AM »

load makes no difference. it dips if you go through that 3800-4000 rpm window at part or full throttle.

the engine harness if factory. the harness inside the car for the dash and all the lights is tucked in the fenders.

glustic · « **Reply #28 on:** June 23, 2013, 01:54:29 AM »

Holy fuck I disappear for a long time and see this project is in the tuning stages.... Nice!

PhilStubbs · « **Reply #29 on:** June 23, 2013, 07:35:21 AM »

I'm with JD on his last post.

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Author Topic: crx2000 thanks to my rhmt nogs (Read 9022 times)