Looking for a working timing table ca18det with poncams

Zenki · Post by **Zenki** » Wed Jun 17, 2009 6:53 am

my setup:

83,5mm CP Pistons
Pauter Rods
Garett GT2871r 56t rim, EX AR 0,64 with costum mainford
Poncams 256° 8,5mm Lift IN, EX
Z32 MAF
750cc injectors
walbro
58mm throttle body
FMIC
98 octan fuel
free flow exhaust
free flow air filter

My issues is if i want to go over 1 bar (14,5psi), the engine knocks. And my timing is really low. But with the low timing the egt goes to high.
Enclosed you find my timing table....so what can i do otherwise?
Maybe someone can post his timing table with an similar setup?

lyckaon · Post by **lyckaon** » Wed Jun 17, 2009 8:34 pm

At what RPM you have knock?

Zenki · Post by **Zenki** » Wed Jun 17, 2009 9:09 pm

lyckaon wrote:At what RPM you have knock?

te most knock is at 6000-6500rpm

Running lambda 0.75 = AFR 11 under full throttle

lyckaon · Post by **lyckaon** » Fri Jun 19, 2009 12:26 am

What do you use to detect the knock?

Zenki · Post by **Zenki** » Fri Jun 19, 2009 6:21 am

lyckaon wrote:What do you use to detect the knock?

by my friends and my ears

before i was unsing a t28 from an s14 @1,15 bar and there was no knock

just after upgrading the turbocharger there was always knocking beginning and 1 bar

lyckaon · Post by **lyckaon** » Fri Jun 19, 2009 6:48 am

What's your spark plugs?

iceblade · Post by **iceblade** » Fri Jun 19, 2009 9:28 am

just a thought, are you sure you arent maxing out your map, as in the load point you are trying to use is higher than the highest load point on your map??
a guy ive been helping with his tune who has a ca18det with a set of hks cams is using well over TP 120 at 17psi boost

Zenki · Post by **Zenki** » Fri Jun 19, 2009 4:52 pm

lyckaon wrote:What's your spark plugs?

NGK BCPR9ES 11 with 0,7mm

Zenki · Post by **Zenki** » Fri Jun 19, 2009 4:54 pm

iceblade wrote:just a thought, are you sure you arent maxing out your map, as in the load point you are trying to use is higher than the highest load point on your map??
a guy ive been helping with his tune who has a ca18det with a set of hks cams is using well over TP 120 at 17psi boost

If you like i can send you a data log and and my map?!

lyckaon · Post by **lyckaon** » Fri Jun 19, 2009 8:37 pm

Whooa BCPR9 that's cold... It's not your knock problem source...

Do you have the same values in both standard and knock timing maps?

Could you send me your map?

Zenki · Post by **Zenki** » Sat Jun 20, 2009 8:16 am

lyckaon wrote:Whooa BCPR9 that's cold... It's not your knock problem source...

I know, but the car is no daily driver, I don`t drive shortrange and they are driving very well.

lyckaon wrote: Do you have the same values in both standard and knock timing maps?

yes

Could you send me your map?

Zenki · Post by **Zenki** » Thu Jun 25, 2009 5:14 pm

lyckaon · Post by **lyckaon** » Thu Jun 25, 2009 8:41 pm

Do you have check your idle timing with a timing light? 15° btdc?

Zenki · Post by **Zenki** » Fri Jun 26, 2009 3:22 am

lyckaon wrote:Do you have check your idle timing with a timing light? 15° btdc?

yes mate, exact 15°

streetbike · Post by **streetbike** » Fri Jul 03, 2009 7:44 am

My map with exactly the same turbo and AFM Z32 and 750cc injectors is mapped from TP 6 to TP 102

as TP 102 is 1.8bar

with filtered values I have about 30-34° of advance at TP 57 and 11-15 at TP102

so yours timing are far too low for your setup, and if you have knock you must have another problem....

I have no knock at all with this map ..