Originally Posted by
TStiles
Thanks for the reply
I'm not sure if it's running lean up top ( too loud to run 7000 RPM in my neighborhood )
I think it should be OK , I've changed injectors ( which should have been the problem ) , fuel filter , plugs , wires. I was trying to insure the fuel pump was solid before moving on to other projects.
I'm a Mac user ( don't have a PC ) , I don't think the MS softwear runs on Mac. Another reason why Louie tunes my car , but he's on the other side of Houston.
I was thinking that having a FRP would be an EZ at the track adjustment if the issue presented it'self again. It's not a huge issue with the current motor , but if I build an STL motor is going to be a big deal if I hurt it.
If you build a 100% STL motor, you will end up needing a MAJOR reconfigure of the fuel system and ECU anyway. You will need a minimum of 375cc injectors @45psi. You will also want to remove the MAF, it is easy but will require an added temp sensor and settings changes to the ECU. Lastly, with optimised cams and compression, the PNP Megasquirt is not going to be sufficent. It has way too little resolution on the spark/fuel tables and the timing provided by the factory cam sensor is not acccurate enough. You will really need to switch to MS2 preferably MS3 and use a crank trigger with a multi toothed wheel as well as a modified cam sensor to allow sequential spark and fuel. This will allow you to tune spark and fuel on each individual cylinder. You will need a 100% built BP4W to have a snowballs chance in hell against any decently prepped Honda.
Back to the original question, your fuel pressure at rest and accel look spot on for a '95, other than the snotty injector I dont see a problem with fuel supply.
C&R Motorsports
2007 ITS MX5, 1995 ITA Miata, 1997 STL Miata
3 time VIR 13hr ITA winner
2011 SARRC STL Champion
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