just dyno'ed my 89 951
#17
K27/8
#19
Burning Brakes
The AFR from 3300-5440 is capped at the minimum the O2 will read it looks like (10.3 AFR according to the numbers in the list?). Completely horizaontal line with no deviations between the run. Meaning your average AFR is probably richer than 10.5. You need to look into why you're so rich. Your numbers are also pretty low. I would expect ~250+ at least...
Last edited by onspeed; 10-13-2013 at 06:07 PM.
#20
Rennlist Member
Thread Starter
Is there a way to adjust it with dme? I think i saw sonehere about a screw wich adjust ignition timing and fuel air ratio? Maybe it was messed up with?
#22
Rennlist Member
Thread Starter
i have changed all the vacuum/boost lines, after i changed them my spool time got much quicker, so i thought i got all the boost leaks.. i hope that with rogues a-tune, tuned for 72lb injectors i will get better air fuel ratio
#27
Rennlist Member
Thread Starter
did boost leak test, changed few more lines, ill have to take of intake manifold again, and change remaining old lines i thought were good, and im gonna try to find why my heater valve doesnt get enouth vacuum to close, it closes partialy but not fully,
anyway i installed the a-tune from rogue tuning, drove a car and it feels great, even my narrowband afr gauge shows that at wot im running on last bar of stoich and first bar of rich, before that on wot it was always 3rd bar in rich, so things are geting better, and car pulls great im running 18psi with 72lb injectors and somekind of turbonetics turbo (inlet size 55mm) didnt have a change to check on extruder size, to identify the turbo..
well im going to get the car on the same dyno next week or week after to see the numbers
anyway i installed the a-tune from rogue tuning, drove a car and it feels great, even my narrowband afr gauge shows that at wot im running on last bar of stoich and first bar of rich, before that on wot it was always 3rd bar in rich, so things are geting better, and car pulls great im running 18psi with 72lb injectors and somekind of turbonetics turbo (inlet size 55mm) didnt have a change to check on extruder size, to identify the turbo..
well im going to get the car on the same dyno next week or week after to see the numbers
#28
Rennlist Member
Thread Starter
Imagine my surpised face when 2inch LR j boot arrived and i found out it doesnt fit, made a misscalculation in turbo inlet size, instead of 55mm it is actually 70mm or 2.75inch diameter, so looks like im gona need a maf kit to fully use my turbine
#29
didnt have a ruler handy?