CB Performance Quick Tune EFI, turbo, troubleshooting

240Gordy · Posted: Sat Oct 27, 2012 8:18 am Post subject:

Anybody use the Quicktune EFI kit with a WBXer? Do the intakes fit?
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scs2003 · Posted: Tue Oct 16, 2012 6:09 am Post subject: CB EFI update

Summer is here in Australia and its time to rid off the spider webs of my buggy. look at the videos.
http://www.youtube.com/watch?v=7dQLaXLsIEk
http://www.youtube.com/watch?v=dYLKI5qACXQ&feature=relmfu

the buggy is running well with the exception of:
still running slightly rich.
bucks and jerks at cruising speed at around 2k rpm. once past that its fine.

i might try 28 injectors instead of the 52s.
the bucking and jerking. I HAVE NO IDEA.

the problem i had with it dying as was mentioned in previous posts, turned out to be a faulty coil that came with the kit from CB performance (over heats) at 140 temp the coil dyes.

it is scary to drive with so much power and i Havant even gone anywhere 10 pound boost. i hate to think what would happen at 15lb boost. probably blow the engine..ha ha

miniman82 · Posted: Mon Oct 15, 2012 6:32 pm Post subject:

NO.

Further, DIS from that company is not distributorless at all since it mounts to.... A DISTRIBUTOR! Rolling Eyes

It gets you the marketing gimmick of saying you have DIS (you really don't), and you don't get any of the benefits of a true DIS system with crank reference. Wasted money if I ever saw it.
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emsharp0355 · Posted: Mon Oct 15, 2012 11:15 am Post subject:

Can you use a Compu-Fire DIS ignition system with the quick tune efi?

scs2003 · Posted: Tue Jan 17, 2012 5:12 am Post subject:

Made a mistake the Air/fuel is at 14.7. i would like it to be around 13 or less.
perhaps the 02 sensor is faulty (i have changed it once before it didn't work) or perhaps the 02 map sensor is faulty. ? how else can i bring that 14.7 down.
I started the car again and tried it with open and closed loop and still the same, running rich and when it reaches 140 it dyes.

mcmscott · Posted: Mon Jan 16, 2012 8:46 am Post subject:

At 140 the ecu is probably going into closed loop and learning is also starting, check your desired a/f ranges as the ecu is probably trying to tune to these, or turn auto tune off untill you can set up a map that runs well

scs2003 · Posted: Mon Jan 16, 2012 5:08 am Post subject:

I might add also changed oxygen map sensor and at the moment running the following

Running only 5lb boost at the moment
New plugs
Timing is set
Electronic egnition
Air/fuel set 13
I am open to any suggestions

scs2003 · Posted: Mon Jan 16, 2012 1:37 am Post subject: CB Performance EFI

Since my last post. I have installed the t4 turbo as pat said that the system won't work on dual canons which I had on the car and now changed to a one muffler system. The car still running rich even though with complete new exhaust system. Since ten I attempted to drive the car and the car bucks and hesitate and stall when I take my foot of the accelerator.very scarey and not safe thing to do. I then changed the oxygen sensor and the TPS the car idles nicely even though it's still running rich and why it was stalling I worked out and haven't solved as yet is that when the car reaches head temp of 140 it stalls. I am able to start the car with no problem but it stalls straight away. If I let the car cool for a while it starts again untill it reaches that magic figure of 140.
I tried contacting pat by email and phone and lcan't seem to get him.
I leave to you guys to help me out as to what to do. As it is the car is not safe to drive as you have to keep the rev high even after you stop other wise it will stall.
I thought of putting on a dyno but not untill I get these two issues sorted
. Running rich
. Stalling when head temp reaches 140 according to reading on dashboard.

fatsubsonic · Posted: Wed Oct 26, 2011 6:25 pm Post subject:

miniman82 · Posted: Thu Jul 14, 2011 9:20 am Post subject:

Theory is theory, put smaller injectors in it I promise it runs better.
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Stripped66 · Posted: Wed Jul 13, 2011 5:32 pm Post subject:

Again, it depends on the injectors. I've been running a set of high-impedance Siemens Deka injectors that are controllable at least down to 1.2ms (as far as I have tuned with them at low-load cruise); they idle at 1.46ms and even a +/-0.05ms change in PW noticeably affects the idle quality and AFR.

A 52 lb/hr injector will likely need a PW in the range of 1.4 to 1.6ms for idle on a 2276. That can be done with several of the newer low-impedance or high-impedance injectors that are available today. The minimum opening time for an injector is easy to test, and depends on the injector (the design, brand, model...not just the "type" of injector).
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miniman82 · Posted: Wed Jul 13, 2011 4:32 pm Post subject:

That's for P&H injectors, saturated ones are worse.
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Stripped66 · Posted: Wed Jul 13, 2011 2:49 pm Post subject:

miniman82 · Posted: Wed Jul 13, 2011 12:27 pm Post subject:

Here's what it boils down to: if he's already at 1.something on the injector PW and still pig rich, there's no other alternative to get less fuel but to reduce fuel pressure or get smaller injectors. Smaller injectors would be the best thing to do, the computer will have more control over them because they will be better matched to the engine displacement. Once you get down into the 1.x PW numbers, you're basically idling on injector open time only, you can't cut flow any less than that.
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Tbirdusa · Posted: Wed Jul 13, 2011 10:09 am Post subject:

bugninva · Posted: Tue Jul 12, 2011 6:57 pm Post subject:

miniman82 · Posted: Tue Jul 12, 2011 9:14 am Post subject:

Why is everyone making the assumption he has a turbo motor? Rolling Eyes

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bugninva · Posted: Mon Jul 11, 2011 8:50 pm Post subject:

Eaallred · Posted: Mon Jul 11, 2011 2:12 pm Post subject:

I am running 51 lb injectors and idle just fine. I think he should be fine with 52's. If he's a turbo motor going for over 200 hp, he'll need them.
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miniman82 · Posted: Mon Jul 11, 2011 9:59 am Post subject:

52lb are huge injectors, get something smaller.
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