Tad

Checked my plugs after a WOT run fom 1st to the top of 3rd gear.
shut it up, coasted off the street and pulled my #3 and #1 plugs..
heres wut they look like..

car makes great power,
last comp test a few weeks ago was 185 across the board.

d15b vtec, jrsc 9psi, crome.
2step colder ngk plugs
top 2 pics were in the sun, bottom pic in the shade

Sketch_hs

are you burning any oil?

Tad

nope

abnaasefmb

pull timing

SOHC_MShue

Whats your timing look like? I tuned a boosted turbo d15b last week using a knock detecting device and it didn't want anymore than 16-17* total timing at 10psi. Anymore timing and I was picking up slight knock. I have noticed similar amounts of timing having to be pulled out on a few recent z6's as well.

JDMs1eeper

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHC_MShue &raquo;</TD></TR><TR><TD CLASS="quote">Whats your timing look like? I tuned a boosted turbo d15b last week using a knock detecting device and it didn't want anymore than 16-17* total timing at 10psi. Anymore timing and I was picking up slight knock. I have noticed similar amounts of timing having to be pulled out on a few recent z6's as well.</TD></TR></TABLE>

yeap, and on a JRSC itll want less timing due to IAT's w. no pre/after cooler.

SOHC_MShue

yup things will heat up. What kind of intake temps have you been noticing Tad?

Jared

what heat range plug is that? you either have too hot a plug and/or are running too much timing for your combo.

Tad

plugs are 2step colder from stock sohc plugs.
i forget the exact part number though. bcp something.
yeah i guess it must be the timing,
was hoping it wasnt though. as the more timing it gets the better it feels.

I dont really have jack squat to monitor this,
just my ear and plugs.

could really use something that could tell me iat's, egt's, af's, etc.. without clutting up my car with a million and one gauges

enigma94

stock sohc plugs are 5's so you should be running 7's.

Tad

yeah pretty sure thats wut they are.
i was very thorough picking these plugs, they aren't the problem.

I guess I can just turn it back at the dizzy, which has been turned forward some sicne it was tuned way back when..

i'm kinda thinking about just getting one of those rom burners, a wideband, and egt, and tuning it myself tho.
never done it before though.

hondaguyef

The small shiny spots on the porcelain are signs of detonation.

Phil

SOHC_MShue

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tad &raquo;</TD></TR><TR><TD CLASS="quote">plugs are 2step colder from stock sohc plugs.
i forget the exact part number though. bcp something.
yeah i guess it must be the timing,
was hoping it wasnt though. as the more timing it gets the better it feels.

I dont really have jack squat to monitor this,
just my ear and plugs.

could really use something that could tell me iat's, egt's, af's, etc.. without clutting up my car with a million and one gauges</TD></TR></TABLE>
https://honda-tech.com/zerothread?id=1555006 try this out. They work awesome for me detecting knock. Also i cant stress enough how important a wideband is. Without that you really cant do ****.

SOHC_MShue

BTW those are probably the best looking pics i've ever seen someone on this site post of their plugs

JDMs1eeper

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHC_MShue &raquo;</TD></TR><TR><TD CLASS="quote">BTW those are probably the best looking pics i've ever seen someone on this site post of their plugs </TD></TR></TABLE>

yeah i know! Nice pics!


I tried posting pics of mine once and it looked like i was holding a cat turd in my hand.

You should try that link Matt just posted. That seems to work well.

Tad

thanks, i know my way around a camera, haha.

I'm wondering still though, if this a result of lean a/f or timing.. It's wierd, I started hearing some pinging recently nothing changed tuning wise!

Any recommendation on a CHEAP wideband and burner combo?
I've got an adjustable fpr too.. I wonder if adding fuel there would help

JDMs1eeper

the plugs seem to of been reading a good fuel mixture. Just most of the soot ring has been disfigured from detonation.

I picked up a Innovate Wideband for 350shipped but you could get a PLX for cheaper. The PLX also is easier to mount and setup for keepin in a car you DD.

SOHC_MShue

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tad &raquo;</TD></TR><TR><TD CLASS="quote">thanks, i know my way around a camera, haha.

I'm wondering still though, if this a result of lean a/f or timing.. It's wierd, I started hearing some pinging recently nothing changed tuning wise!

Any recommendation on a CHEAP wideband and burner combo?
I've got an adjustable fpr too.. I wonder if adding fuel there would help</TD></TR></TABLE>
it could be many things causing detonation. You will need a wideband so you can at least single out that factor. Then look into timing. If you want a cheap burner go to moates.net and get their burn1. Its compact and much much easier to use then that willhem burner. If I were you though I'd spent a little extra cash and maybe shoot for an ostrich from moates instead. Tuning without some kind of real time programming device will make you want to cry.

hondaguyef

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tad &raquo;</TD></TR><TR><TD CLASS="quote">
I'm wondering still though, if this a result of lean a/f or timing..</TD></TR></TABLE>

Timing. The A/F appears to be fine(mixture shown on base ring) but, there is definately to much timing in the tune.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tad &raquo;</TD></TR><TR><TD CLASS="quote"> It's wierd, I started hearing some pinging recently nothing changed tuning wise!</TD></TR></TABLE>

Could have been a bad tank of gas.

Tad

ok thanks guys,
i'm checking moates.net right now
and i looked into plx products.
looks like they have a datalogging computer thingie too!? anyone seen this?
will it work in conjunction with crome?
seems like its exactly what i need, gives me one display showing iat, egt, af, etc..(i hate clutter)
https://honda-tech.com/zerothread?id=1179346

SOHC_MShue

What timing curves are you running Tad? Can you post your .bin?

Tad

I wish!
but cant post my .bin till i get a burner to read it!!
or drive down to fremont and have redzone hook it up 4 me..

SOHC_MShue

Tad

yeah I know,
i'll figure it out though.
probably i'll just drive out there, it's not that far.
once i get the bin i'll post it

SOHC_MShue

sounds good