T
TYWRAP
Guest
I have a DIY system that I'm running and can't seem to make any progress in the timing/knock department.
The details of the set up are:
100 PSI pump/1.4 GPM
Accumulator to even out pump pulsing and keep pressure up
60/40 water to denatured ratio
single 1080cc nozzle(very fine mist) about 8 inches away from TB
injection point is set to ~13 psi (confirmed it is working)
The car pulls pretty hard , but starts to break up around 5K to redline. The external wastgate is open and sounds very muffled. The boost is set 19PSI . My timing numbers are ~10 to 12 degrees at WOT. spark plugs are gapped to .025(stock is .044). I have run this spark gap on the car before and had good results on the dyno. With the car set to 18psi, and no alk/h2o, the car pulls ALOT harder and no breaking up. The wastegate is way louder too. Timing is 14-16.5.
I started wiht just water, them went to 90/10mixture, then to my current 60/40 mixture.
Anyone have a idea what could be wrong.
Thanks,
-Jon
The details of the set up are:
100 PSI pump/1.4 GPM
Accumulator to even out pump pulsing and keep pressure up
60/40 water to denatured ratio
single 1080cc nozzle(very fine mist) about 8 inches away from TB
injection point is set to ~13 psi (confirmed it is working)
The car pulls pretty hard , but starts to break up around 5K to redline. The external wastgate is open and sounds very muffled. The boost is set 19PSI . My timing numbers are ~10 to 12 degrees at WOT. spark plugs are gapped to .025(stock is .044). I have run this spark gap on the car before and had good results on the dyno. With the car set to 18psi, and no alk/h2o, the car pulls ALOT harder and no breaking up. The wastegate is way louder too. Timing is 14-16.5.
I started wiht just water, them went to 90/10mixture, then to my current 60/40 mixture.
Anyone have a idea what could be wrong.
Thanks,
-Jon