jprince

hi just have a simple question.. when swapping in the rx7 550s, setting them in ms, do i just have to goto the req_fuel and set the engine size, injector size and req afr ( the ms manual says to put 12.7 ) then the megatune will adjust everything else? seems almost... tooo easy ... this is a very noob question just wanna clarification plleeaaseeeee ty

Matt Cramer

Don't forget to change cranking pulse width and acceleration enrichment.

jprince

ok lol can someone hold my hand in this then and explain how to

jprince

I understand the req_fuel settings but can someone guide me with the cranking and excel enrichments settins? That would be very appreciated and my na tune now with the stock injectors (under100 kpa) will it be badly out with running 550s ?

hankclaussen

iTrader: (5)

230/550=.418; .418 x each value for cranking and accel then yes, it's that easy and should be close for tune if it already runs well.

jprince

Ten four gotta love ms

jprince

Another question thou the 230 used in ur equation is that the injector size because I thou 1.6 injectors were 205cc?

jprince

Anyone

giblets

I've heard 205cc, 215cc and 230cc for the 1.6 injectors, not sure what's correct but the base map for my DIYPNP used 240... ??

Just set your new REQ_FUEL and use the ratio of old/new REQ_FUEL to scale.

On a related note, how come the priming and AE PW aren't related to REQ_FUEL like the cranking settings?

jprince

Ok Thanks a million

hankclaussen

iTrader: (5)

Good point, but 230 worked for me; it just went way rich again.

jprince

ok sorry lol but where r there adjustments for the crank pw and accel enrich

jprince

Anyone help with this lol

Matt Cramer

Under Cranking Settings and Acceleration Wizard respectively.