Hondata

Out doing some pulls tonight and I think im having ignition problem at high rpm. The dig pull felt good but it was the roll that concerned me.

1200cc injectors
84mm lsvtec
s366 turbo
stock ignition
pugs gapped at 30

burmese434 wrote:Out doing some pulls tonight and I think im having ignition problem at high rpm. The dig pull felt good but it was the roll that concerned me.

1200cc injectors
84mm lsvtec
s366 turbo
stock ignition
pugs gapped at 30

Two things. Close your sparkplug gap and try again. Second thing is, your car is running lean in the higher gears. you need to use your gear compensation to get your AFRs right in each gear. In each gear the engine sees different loads which creates different AFRs. But 13+ AFR at 15lbs of boost is not good. Your engine will start sputtering and breaking up.

Ok just did some more pulls with riching the tune up some and it cuts out right around 6-8k

burmese434 wrote:Ok just did some more pulls with riching the tune up some and it cuts out right around 6-8k

Your fuel looks better, but did you try closing your sparkplug gap like I stated before?

crucian wrote:

burmese434 wrote:Ok just did some more pulls with riching the tune up some and it cuts out right around 6-8k

Your fuel looks better, but did you try closing your sparkplug gap like I stated before?

Yup gapped down 20'

burmese434 wrote:

crucian wrote:

burmese434 wrote:Ok just did some more pulls with riching the tune up some and it cuts out right around 6-8k

Your fuel looks better, but did you try closing your sparkplug gap like I stated before?

Yup gapped down 20'

Does the engine actually cut out or does it hold back (feeling like you're not getting any power)? What type of fuel are you running? What cams are you running? Did you match your ignition timing with a timing light to your S300? Your fuel and timing looks ok. The only other thing could be a mechanical problem.

Yes timing is set with the s300. I clicked set timing and the window popped up and then went and I have to advance the dizzy all the way advanced to get it at 16' degrees(red mark). It's has gsr cams and it's like it breaks up but still climbing rpms.? I'll try to get a video .

http://www.youtube.com/watch?v=1SMPJNKaqzE

burmese434 wrote:Yes timing is set with the s300. I clicked set timing and the window popped up and then went and I have to advance the dizzy all the way advanced to get it at 16' degrees(red mark). It's has gsr cams and it's like it breaks up but still climbing rpms.? I'll try to get a video .

http://www.youtube.com/watch?v=1SMPJNKaqzE

Sounds to me like a problem with the spark not being strong enough. You may have more of a mechnical issue than a tuning issue. Verify sparkplug, wires, and distributor. Also, in the video the AFR guage is not clear. Is your AFR wideband and guage synced with your S300? You never did mention what type of fuel you are running.

The spark plugs are r5671a-8. pump gas 93 and yes my aem in spliced in with the s300 d10 pin. Do you think 15psi on pump gas mightbe to much for pump gas?. I don't remember it breaking up on 7-8psi?

burmese434 wrote:The spark plugs are r5671a-8. pump gas 93 and yes my aem in spliced in with the s300 d10 pin. Do you think 15psi on pump gas mightbe to much for pump gas?. I don't remember it breaking up on 7-8psi?

15psi with that turbo shouldn't be too much for pump gas if tuned properly. Going from 8 to 15psi creates more cylinder pressure. If there is something wrong with your ignition system, the added PSI may cause problems. Use trial and error to help you solve your problem.