Can anyone share with me their map with me that has had their car modified on a dyno or otherwise obtaining good a/f ratio's /etc?

I have an Apexi PFC tuned by SR motorsports with based on the following mods: Greddy smic, intake, exhaust, CB, high flow cat, dp.

My car's setup:

-- Stock engine & turbos
-- Apexi PFC, (I know -just to be clear)
-- Greddy SMIC
-- Fuel Pump
-- Bonez Hiflow Cat
-- PFS Exhaust
-- DP

I'd like to compare the difference in one that has been tuned to mine and see the difference. If you could also report the a/f numbers and dyno sheet that would be great too!

Thanks!

 

I've wideband an SR tuned PFC for your setup and it was pretty toasty AFR wise, you should be close to where you need to be. Timing is likely conservative. There are a few maps posted on the forum, take a look at their timing.

https://www.rx7club.com/forum/showth...threadid=10509

If you had a single turbo PFC tuned by SR then I would say you have to wideband tune it unless your spark is awful strong ... pig rich and lots of timing retard below the torque peak.

 

Thanks TWOKrx7 - where are you located in TX? I actually bought my pfc from Jamie Rojas in Houston. The car actually runs really well - imo.

Do you recall what the A/F's were?

 

I looked at their mod lists - not really comfortable with comparing... Can't believe there are not any more...

 

Houston.

If you are in Plano you can always go to RP or Alamo for tuning ...

I recall the PFC AFR's in the high 11 low 12 range at WOT

 

I have a pic of my dyno sheet with AFRs, with the same mods as you except the hi flo...don't know if it will help my maps looked pretty strange...email me at eggone@hotmail.com if you want it...I tweaked the fuel cells a little to bring the AFRs down to high 11s at wot...

I belive I saw a thread where Zerobanger dynoed his with very similar mods

Dave

 

Thanks for the responses. I guess I really need a datalogit - I have two extra notebooks I don't know what I am waiting for...

 

Might as well sell one of the laptops, get a datalogit and a TE wideband O2 too!

 

Amen.

These are the two best tool investments for a serious owner of a seriously modified 7. While you are at it, don't forget to order the TE 5301 LED display. Although you need to do some messing around with the circuits because of the display/datalogit interplay, you will probably want the option of the full time display when you are not datalogging.