370cc injectors in Ka24e? ecu-retune?

[deviousKA]

Modified by deviousKA at 4:24 AM 9/17/2005

[TrunkMonkey]

with my raised compression, that naturally richened my fuel mixture correct?

no.

because my car seems to run rich with the stock 260cc injectors.

you need to advance your timing.

will i be able to run the 370's without an ecu retune? im sure idle is impossible but after say 2000rpm how would it run?

i'm not 100% sure on the ecu retune, but if your already running too rich, bigger injectors won't help.

-demetrius

[deviousKA]

Modified by deviousKA at 4:26 AM 9/17/2005

[C-Kwik]

A high compression motor doesn't need much more fuel if at all. The only reason would be to cool the charge a bit and stave off detnation, but the airflow into the motor would be the same unless you increased the VE. The 370's will be a waste of time unless you are revving way over the factory redline when available duty cycles become much shorter.

[deviousKA]

Modified by deviousKA at 4:28 AM 9/17/2005

[Aries]

Im gonna talk to JWT. see if they can tune me a nice ecu for my setup, and since id be buying something from them, they may be able to give me some tips before i tune it. detonation can occur if the fuel mixture is to rich im pretty sure. different than say a lean or hotspot type detonation.

it's not detonation. it's called secondary ignition. it hapens in the headre/exhaust when there is too much fuel blow by, and the exhaust gasses/heat/spark pass through ignite the extra fuel.

Get a fuel pressure regulator and lower your pressure to arround 37psi. this should help.