Have anyone had problems like this..

The car is a jdm crx sir with obd 0 distribuator and accell external coil. Magnacore sparkplug wires.

We have tried to go back to stock distribuator with stock coil, changed to msd plug wires. Disconected caralarm, disconected alternator. The sparkplugs are NGK comen r ones that worked 100ds of times before.. AFR is fine.
We tried mount a complete stock volvo on it and it keeps it stable.

We are lost?

The car works fine on the road when we road tune it up to 0,7 bar of boost. We stoped there and was thinking that we will do the rest at the scedual dynotime.
Only the innovative wideband lambda spiked some times to like 27 in afr for lika half a second if even that when we road tuned it. I guess that it is also effekted by the interferance of some sort..

But what the h*** are we going to do to fix this..?

The dyno has no electric incomen with the car.

Modified by The sweed at 11:11 AM 5/12/2008

Modified by The sweed at 2:12 PM 5/12/2008

Have you tried these people?

http://www.dynopack.co.nz/

AFAP Racing
1992 Yellow Civic Si best ET 9.85 @ 145.68MPH single cam, 1.54 60ft

Try my Hot Sauce! http://www.hhpepper.com PM me for a free bottle.

The guys that owns the dynapack told me they would see if they can get any support from dynopack in new zeland.

I think the problem is in the dyno and it makes it sensitive to electrical enterference..

not for dynapak..

Does this happen on other cars or just this one?

Do steady state via the MPH that correlates to the RPM that you want to hold. Usually the inductive pickup is a little bit choppy and makes it difficult for the dyno to hold it steady.

- 1996 Honda Civic Ex - B20, SC60 @ 20psi, Tuned on E85

dynapak's get rpm from the hub speed..

I'm not familiar with them at all but they don't have any way to pick up RPM besides that? I've diagnosed many bad torque converters by comparing engine RPM via inductive pickup to wheel speed and doing some math to get torque converter slip %.

- 1996 Honda Civic Ex - B20, SC60 @ 20psi, Tuned on E85

That's me under the hood.

- 1996 Honda Civic Ex - B20, SC60 @ 20psi, Tuned on E85

Sorry again for thread hijacking.....

It was a while ago, I remember that day though the highest hp was a Chevy Truck - Diesel/Dually w/ stock turbo pushing 400rwhp w/ over 750 ft/lbs torque.

Mustang software is pretty nice, it just gets old explaining why their hp is low compared to a DynoJet.

- 1996 Honda Civic Ex - B20, SC60 @ 20psi, Tuned on E85

Try grounding the car to the dyno and dyno computer and then grounding the dyno equipment to an earth ground. I've had electrical issues with some cars that was solved by doing that. Mind you it was a different brand dyno so do at your own risk.

- 1996 Honda Civic Ex - B20, SC60 @ 20psi, Tuned on E85

They couldnt get a stable reading of the widband lambda ether. When they roted the lambda wire avay from the sparkplugs it got better. So the changed the sparkplug wires MSD ones and the problem went away completly.. The bad sparkplug wires had a coper lead.

I have also discovered today that the dyno has no conection to ground erth..

I bet that is the problem.. We will try to get a day off from our daytime job ones again and see if that is the problem. Over here we have 240 volt 1 phase. The ground erth is standard on newer buildings in cellers and garages and workshop etc.. But the building that the dyno is in did not have ground erth for some reason.. We will rout power from a grounded power sorce and see if that cures the problem..

IŽll post when we find out..

The new zeland guys was sure it was a mecanical problem in the car but that is ruled out. We regreted that we did not video taped that dyno setion.. But we will do it next time.

Edit: We did not try any wot pulls at the dyno but at open roads the car works greate anyway.. The cars tune works acceptable on low boost so we can make wot pulls to 8k anyway.. Maybe we will try that if the ground thing dont solve the problem.

No kidding! Someone asked if they could name our machine the "heartbreak dyno"

Back to scuere one.. I think we will try a diffrent dyno but it is in the middle of the season so I hope to get my hans on a canceled sesion.