T5OLF

iTrader: (4)

Just wondered what other peoples were maxing at. I had 45 last night, the ecl lit up for a slit second between 4th and 5th gear changes at WOT.

Car was mapped by Andy F and runs on V power and 1.4 bar of boost.

Spec:
Type ra
FMIC
550 injectors
Power fc
Ported headers
Harvey Smith uppipe
Full decat

andy97

iTrader: (1)

Is this a normal everyday occurrance?

Ive had when drag racing 80-90 when I hit the rev limiter (by accident) or this summer when the top mount couldnt cope with the heat 70-80( lots of octane booster helped keep it down to normal levels), but generally I only get 6-12 when the weather is cooler and I have a good tank of fuel.

Andy

rossyboy

iTrader: (8)

Usually low-mid 30's at worst on a noisy '93 engine at 6-6.5k rpm. Got a peak of 68 once and the KL went all xmas tree like

T5OLF

iTrader: (4)

Yeah mine is a 93 engine - I did change gear at around 6500 revs, I don't normally change that late so maybe it was a bit of engine noise, it does pop/bang between gear changes maybe it picked up that.

Welloilbeefhooked

iTrader: (3)

Never get more than 11 on the power fc?!?!?!?

MY98 WRX mapped by Andy.

rossyboy

iTrader: (8)

Less noisy engine the '98

T5OLF

iTrader: (4)

I think a road test is needed this afternoon and get some more readings, maybe it was a one off.

Jolly Green Monster

iTrader: (4)

Every engine is slightly different but generally the 92~96 is the noisiest..
45 is probably fine.. although cannot be certain not having heard this particular engine.
the 97~98 engine is slightly quieter and the 99~onwards quieter still..

Clipping the limiter will see a big knock reading pretty often as it cuts the fuel.
Best to try and avoid doing so.

If it flickered the check engine light then it must have been noiser than normal.. when mapped I set the noise level the engine light will flash just above the noise level observed whilst mapping and known not to be actual knock whilst listening with detcans.. I suspect Andy will have done the same.

Simon

Jolly Green Monster

iTrader: (4)

if you are seeing knock that high without clipping the limiter then you need to get it checked.. worth trying to avoid hitting the limiter.

Simon

T5OLF

iTrader: (4)

Cheers Simon

Just had a blast up the bypass, changed up at the shift light(6200ish) and highest reading was 33 with no knock light. I may lower the point at which the shift light comes on so as not to over rev it. My reactions are a little slow when it goes to changing up when the light come on.

Jolly Green Monster

iTrader: (4)

sounds normal then.. you don't have to lower the shift light.. change up when you like, just ideally before the redline..

Simon

T5OLF

iTrader: (4)

Cheers feller

rigga

iTrader: (4)

never even seen double figures on mine....... though 99-00 quietest of the lot apparently.... 6 on start up and a touch more when giving it some

Jolly Green Monster

iTrader: (4)

Your engine was particularly quiet Rigga..

Simon

ScuuBdoo

16 is the max I have seen on mine. Stays between 5 and 10 for casual driving.

Can someone tell me how to set the point at which the CEL comes on using the FC commander?

jaytc2003

iTrader: (1)

bloomin eck thats good, I tend to average around about 18 nowadays, although had a 22 this morning.

Jolly Green Monster

iTrader: (4)

you can't.. you need laptop software to do that.

Simon

ScuuBdoo

thanks. my mapper must have done it already then.

scooby-tc

iTrader: (2)

Highest ive seen on my MY98 sti is 25 and that was guning up the strip at the pod

jaytc2003

iTrader: (1)

I can get upto a 12 on idle (this is after the initial startup), and quite often I will get a 7 when it is fully warmed and idling

Peanuts

iTrader: (15)

every engine is different, the important comparison is between the knock counts you are concerned about and the "normal" everyday background noise.
On my old 99, normal background was 4-6 and 18 was the onset of Det (all /100).

muly

14 on my pfc when gunning it (my98 112k) mapped by Andy F