Need help with new injectors.

s300 and SManager software questions & answers
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Dusty85
Posts: 2
Joined: Tue Apr 20, 2010 3:05 pm

Need help with new injectors.

Post by Dusty85 »

Hi

Was fully tuned last atumn with my RC 750cc injectors on my boosted D16Z6 Civic.

In the winter i changed the injectors to Injector Dynamics 1000cc injectors.
I opened my S300 before startup and typed in 1000cc instead of the current 750cc injectors.

When i started the car it was going WAY to lean... my AFR was on about 20 ish on idle.
I remapped the fuelmap so it was on about 15 AFR an then took the car for a quick spin just down the road... I then realized that the whole non-vtec fuel map was way to lean, was on about 17-20 the whole way... but when i got to the vtec-fuelmap it ran perfectly just like it did the autumn before i changed the injectors!

What could this be? Is it normal to get this much difference from 750cc to 1000cc injectors? Also the Injector Dynamics injectors say that they want dead time on 1ms. Where in the Smanager software can i change the injectors dead time?
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Spunkster
Site Admin
Posts: 23887
Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata

Post by Spunkster »

It is on the fuel trim tab. You will have to fuly returne your fuel tables for the larger injectors as they will have a completely different spray pattern and flow at different duty cycles.
Dusty85
Posts: 2
Joined: Tue Apr 20, 2010 3:05 pm

Post by Dusty85 »

Ok... thank you! I just had to be sure i havent screwed anything up in the process! ;) Then everything is as it should then! Retune it is... going for 500whp now! :D
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