850cc SARD Injectors and z32 MAF

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Gotenks64
Knows Some Stuff About 240's!
Posts: 259
Joined: Tue Dec 27, 2011 7:02 am

850cc SARD Injectors and z32 MAF

Post by Gotenks64 »

After spending 2 hours troubleshooting why Nistune would not connect to my ECU I realized there is a fuse in the driver side kick panel that was removed. So I got my car started with the base image that was on the Nistune chip, I changed the bin to a “rough” tune for my 850cc SARD injectors and z32 MAF. The car wouldn’t start; does anyone have a bin for 850cc injectors and a z32 MAF? Or anything close, I am running 93 octane, 9:1 wiseco pistons, Stage 2 BC cams. I really just want something comparable to cross examine with my current, rough tune. I really just need the car to run off boost, so I can take it to get a dyno tune.
Built Head w/ BC stage two 264/264 Cams
Cosmetic Head Gasket
.020 Over Bore with Wiseco 9:1
Eagle Rods
Fully balanced rotating assembly
Stock flywheel
Spec Stage 3+ Clutch
ARP'ed Everything
Clevite Bearings
SARD 850cc Injectors
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Gotenks64
Knows Some Stuff About 240's!
Posts: 259
Joined: Tue Dec 27, 2011 7:02 am

Re: 850cc SARD Injectors and z32 MAF

Post by Gotenks64 »

I got a base map that starts the car, it was running SUPER rich to the point it would not start. The next issue is the K constant which I believe is causing a sporadic Air Fuel reading. The AF ratio goes between 11.1 -18.0. I don't know how to counter this.The smallest change and It runs pig rich, or super lean. Has any one experienced this with Large injectors and cams?
Built Head w/ BC stage two 264/264 Cams
Cosmetic Head Gasket
.020 Over Bore with Wiseco 9:1
Eagle Rods
Fully balanced rotating assembly
Stock flywheel
Spec Stage 3+ Clutch
ARP'ed Everything
Clevite Bearings
SARD 850cc Injectors
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Gotenks64
Knows Some Stuff About 240's!
Posts: 259
Joined: Tue Dec 27, 2011 7:02 am

Re: 850cc SARD Injectors and z32 MAF

Post by Gotenks64 »

Well I change my set up to Blow through and attmepted to seal any exhaust leaks yesterday and the car runs but the AFR ratio is still swaying from at the lowest 11.3 to sporadically hitting 17.0 at idle. The actual idle is rather smooth, and I timed the car with a timing light at 20 degrees BTDC. The SARD injectors only like a injector latency of 1140us. Which I think is rather high. Does any one have a bette idea to stabilize the AFR?
Built Head w/ BC stage two 264/264 Cams
Cosmetic Head Gasket
.020 Over Bore with Wiseco 9:1
Eagle Rods
Fully balanced rotating assembly
Stock flywheel
Spec Stage 3+ Clutch
ARP'ed Everything
Clevite Bearings
SARD 850cc Injectors
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airman
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Re: 850cc SARD Injectors and z32 MAF

Post by airman »

Take a look at the hosted tunes and see if there's a close one you could try. 1140us does sound high. My precision 880ccs used something in the 600s if I recall correctly.
R.I.P. 1990 Red Hatch - DOHC 5 speed // CP 9:1 - Eagle Rods - Clevite - ARP // Holset HX35 - 20psi daily - MSPNP2
8-bit wrote:You could spend your life building a ladder to the moon, or work for 5 years to pay for a trip.
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Gotenks64
Knows Some Stuff About 240's!
Posts: 259
Joined: Tue Dec 27, 2011 7:02 am

Re: 850cc SARD Injectors and z32 MAF

Post by Gotenks64 »

I am starting to think something is wrong with these injectors or I have a leak somewhere. The car is running but the idle still sways to drastically, with that said. Actual driving is no better, Partial throttle and I am still at 7.6 to 9.0 ish AFR adjust the K value and I am at 22.0. I am about to remove these and install my STI 550cc injectors. I tried a pre-hosed tune.
Built Head w/ BC stage two 264/264 Cams
Cosmetic Head Gasket
.020 Over Bore with Wiseco 9:1
Eagle Rods
Fully balanced rotating assembly
Stock flywheel
Spec Stage 3+ Clutch
ARP'ed Everything
Clevite Bearings
SARD 850cc Injectors
User avatar
Gotenks64
Knows Some Stuff About 240's!
Posts: 259
Joined: Tue Dec 27, 2011 7:02 am

Re: 850cc SARD Injectors and z32 MAF

Post by Gotenks64 »

Just a follow up, The current tune I am running has me perfectly sent at about 14.2-14.7. The issue was the LC-1 was misalign to read a custom AFR(not 14.7 for Gas). Also I did another free air calibration and it works with out error! I still have a rather high latency value of 1140 but it seems to work fine.
Built Head w/ BC stage two 264/264 Cams
Cosmetic Head Gasket
.020 Over Bore with Wiseco 9:1
Eagle Rods
Fully balanced rotating assembly
Stock flywheel
Spec Stage 3+ Clutch
ARP'ed Everything
Clevite Bearings
SARD 850cc Injectors
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