Need advice to up boost
#1
Need advice to up boost
Hi guys ive done a lot of searching and need a little clarification. I have a 90 miata with a cartech FMU and msd retard box. T25 on 5 psi. I would like to turn it up to around 10 psi. From what Im reading I need a 190 HP fuel pump, a wideband and bigger injectors.
I know I will need to adjust my AFM, but Im having trouble finding a good write up on that. What injectors would you guys recommend?
I know I would be best to go with a better ecu but I dont plan to keep it long term, so i dont want to sink alot into it.
Any advice is appreciated, thanks
I know I will need to adjust my AFM, but Im having trouble finding a good write up on that. What injectors would you guys recommend?
I know I would be best to go with a better ecu but I dont plan to keep it long term, so i dont want to sink alot into it.
Any advice is appreciated, thanks
#9
The fuel pump is going in tomorrow as I think im getting a little detonation due to the 150k fuel pump not keeping up, running 4 psi right now and not really boosting it much. I also have an RX7 afm on the way. I was reading and it seems it will run leaner with the afm swap but 305cc injectors would bring it back some. I dont know how much they will add and other than the fuel pump Im not changing anything until I have a wideband.
The msd box only retards the timing 6 degrees tops from what I understand. Where should I set the base timing at for 10 psi? Also what is the best A/F ratio for a daily driven street car?
#10
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I ran my set up that way for a year or so with the greddy back in the day, there use to be all kinds of info on here till the megasquirt bug bit everyone. People where making over 250 whp with FPR and injectors.
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