CA Tuning/MAF questions

[240Clarke]

Fellas,
I am still new to the CA, have always been a KA guy before venturing in this direction a few months ago. Ive exhausted the search button, so Im resorting to new threads for help.

Okay, my setup is stock internal CA, metal head gasket, ARP studs, Nismo FPR, SR T25, HKS 12psi actuator. I have been running stock MAF and stock injectors until the other day, hitting fuel cut at 4.8k-5.2k religiously. A/F's have been abnormally rich, WOT at ~10.2 and idle at around ~10.9. (with A/C and headlights on, idle A/F is ~ 12.9-13.2...) I am "tuning" with an SAFC1, though no matter if I pull 50% fuel, the A/F's do not change more than .2. Boost leak test checks out good. Base fuel pressure set at 36psi idling. I thought I might have a leaking injector, making me run rich, so I just upgraded to DSM 450cc's and an N60 MAF (to possibly prevent the boost cut if it was caused by the stock MAF reaching its max 5V).

With the N60 installed, followed to a tee from a write up on Nico, and the 450's installed, the car will not run correctly. The SAFC recognizes 0 air flow. I am not positive of the SAFC settings for the N60, because there is about 4 different answers to the question when you search. No one seems to know the correct answer. Ive tried 2 in 7 out, 4 in 7 out, and 6 in 7 out, and everything in between. It seems to idle best at 2 in, 6 out. Which I know is incorrect.

So here is my question: does anyone know the CORRECT setting the SAFC should be at for the N60 MAF?
Second, the write up I followed did not have the thick white wire from the CA harness connected (12V constant?), can anyone give me a proper explanation of the wiring. I will post pictures of which wires I have connected to which later today.

(How I have it wired)
Solid white -> not used
Solid black -> to both grounds (pins c+d)
black/white -> white/black
black/green -> solid white

Third, does anyone on this forum socket and tune ECU's for common set ups? If so, PM me and well get something set up. I tried Emance with my SOHC KA-T, and the car barely ran, was inoperable below 3krpm, jerked and bucked like crazy, etc. So Id prefer not to travel that route again if possible. And US based companies that are familiar with the CA ECU? It appears the Enthalpy does not support the CA. I prefer not to go stand alone at this point in time, doesnt seem necessary with my set up.

If any additional information is needed, please let me know. As always, I appreciate the help.

Tyler

[cbh148]

Sorry I can't help, but I'm in a similar situation as you; I have an n60 MAF and Supra 440cc injectors and I'm looking for a ROM tune since a standalone would be wayyyy to expensive, especially for a common setup like mine. I'm not using an AFC though. I'm just gonna let the ROM tune cover that.

I tried calling Emance last week and I got their answering machine. Doesn't look like they have any ads on eBay. Perhaps they're out of business?

Let me know what you find.

[240Clarke]

Yeah, I looked at Emances Ebay store as well. Jason is no longer a registered user. If you look at his feedback, that explains why. He has horrible customer service, I dealt with it once before, f*** me out of a couple hundred bucks, and I never heard from him again. The ECU he did for me looks 100% stock inside, but it ran like complete crap with it in, way worse than no tune at all, so I know he did "something" to it. I wont deal with him again.

But on another note, I found a place that will do rom tunes on it, and say they work with CA's fairly often, and a lot of SR's. I told him if necessary I would fine tune my AFR's with my SAFC, and he told me I would not need it, that my setup was easy enough to tune for. The company is Z Fever Racing. ZFever.com is the website. Ive been emailing with him this morning, he said to socket and tune the ECU, then send it back, would cost $495. Im waiting to find out how much retunes would cost for when I upgrade to a larger turbo.

CBH148, so you have any pictures or information on exactly how you wired up your MAF? On all of the wiring write ups Im reading, none of them mention the solid white wire I have coming from the CA harness TO the MAF. Just a white/black, solid black, green/black, and green/yellow. Did you have a solid white wire in your harness as well, or do I just have a rigged up harness?

[mdb4879]

s13drifter88 use to run an N60 MAF with SAFC1. Try contacting him. I'm certain he could help you out.

[240Clarke]

Just shot him an email. Thanks man

[Buddyworm]

I don't know anything about SAFC's (sound like more trouble than they're worth) but I run the same injectors and MAF on my setup and burn my own roms. My TD06-17c with HKS 256deg IN/EX cams maxes out the N60 at ~1bar just shy of redline, boost cut is removed so I actually overrun the MAF a bit when I wind the engine all the way out. At idle my AFR's tend within .5 of stoich and I set my fuel maps conservatively rich ~11.0 for heavy throttle.

Send me an email at kenji(at)driftwest.ca and maybe I can help you out in the chipping department.

Kenji

[240Clarke]

Email sent, thanks buddy.

As for now, I just removed the SAFC, 450's, and the N60. Turned it back to stock until I can afford a decent tune. SAFC is garbage.

[cbh148]

Just thought I'd mention, I emailed RS Enthalpy and spoke with Martin, who informed me that they could tune CA18DET ECU's for $299. I have an N60 MAF like you, but he told me to get an N62 instead since that's what their tunes work with.

I asked him if he recommended using an AFC and he said it wasn't necessary, and that their tunes are completely fine without any AFC tomfoolery.

When the day comes that my CA18 runs fine with good compression, and I want to up the boost past the stock MAF limited 14 pounds, then I'll be going with Enthalpy since Nistune is out of reach for me.

[240Clarke]

Thanks for the reply. I found a member that is burning his own chips and is running a near identical setup to me. Im stepping up to a T28 and emulating his tune. I figure its worth a shot. Ill give Enthalpy a call if it doesnt pan out as I hope. Good luck to you my friend.

[srt4monster]

i have been rom tuning for awhile and have over 45 different maps for the ca18det. pm if you would like a map or if you want a programmed chip its 6.00(the cost of the chip) and 10.00 for shipping.

[cbh148]

Thanks for the reply. I found a member that is burning his own chips and is running a near identical setup to me. Im stepping up to a T28 and emulating his tune. I figure its worth a shot. Ill give Enthalpy a call if it doesnt pan out as I hope. Good luck to you my friend.

Thanks man. Let me know how that tune turns out. I'd like any other details about it that you'd care to throw my way, since I'm open to other options.

i have been rom tuning for awhile and have over 45 different maps for the ca18det. pm if you would like a map or if you want a programmed chip its 6.00(the cost of the chip) and 10.00 for shipping.

Have you got something that would work for my setup? s15 bb t28, Supra 7MGTE 440cc injectors, bored 1mm over with SuperTech forged pistons, eBay FMIC, Apex'i N1 catback, stock cams/valves/springs/intakemani/turbomani

How reliable are they? Thanks for the info!

[240Clarke]

Yes sir, when I do get a tune I will divulge everything. I have nothing to keep secret. And I picked up my turbo today. Got a ridiculously great deal on a GT2860RS Disco Potato .86ar, so my setup will be that, DSM 450's, N60, and all the necessary supporting mods (FPR, FMIC, Exhaust, Walbro, etc). Internally stock engine other than ARP rod bolts and head studs, and a Cometic hg.

I know the .86ar turbine is big for our engines, but the guy had NO idea what he had. Got it, with braided lines and a boost gauge, for $285. But if you had a map for my setup, or something very similar, I would def be willing to give it a shot.

[cbh148]

Woooowww that is a steal of a deal.

[float_6969]

I vote flip it and buy another turbo with a better A/R. You're gonna HATE that thing on the CA.

[240Clarke]

Yeah, I have been reading mixed reviews on it. Ive read the .64a/r is at full boost about 3800-4000rpm, but cant find the numbers for the .82a/r. I rarely slide it, mainly just my daily driver with occasional high way use. I was thinking the turbo would be a lot better for rolling on the highway than the T25 I had. 75mph, 4k+ rpm, gas gauge falling.

[240Clarke]

Im such a newb when it comes to tuning. Ive looked around at a lot of bin files for CA tunes, is any T28 comparable enough to generalize them? Just want to make sure if I was stealing a tune for an S14 T28 it would be similar enough to running a Disco Potato that the differences would be minimal. Anyone have a bin file for a T28/450cc's/N60?

[float_6969]

The T28 and Disco are totally different. The only thing they have in common is the exhaust flange. I would be very surprised if that tune will work.

[240Clarke]

Thanks float! Thats what I was looking for. I have someone that is building me a custom tune here local, so Ill give it a shot and report the results.

[float_6969]

Cool, keep us updated.