Do I need to update my map?

[dom187]

Hi All,

I have an FD3S which has the following mods....

V mount
T70 Turbo
external wastegate
shotgun exhaust
Apexi ECU
Wideband AEM AFR Guage

I have loads of other mods but I am listing what I think is relevant.

The car was mapped to have a silenced mid pipe, the silencer was very  small. Also the external wastegate was venting to the atmosphere through  a one inch screamer pipe.

Because I wanted to take the car onto the track I had to quieten the car  down to pass the noise tests.... So I got a new silenced mid pipe which  has a much larger silencer on it and also the wastegate is now plumbed  in before the midpipe.

The car now does 95 DB at 6000 RPM which is great, however before I take  the car on the track do I need to get the map updated because I have  added more restriction to the exhaust system?

The car is mapped to 0.8 BAR and I have driven the car up to 0.6 BAR and the AFR\'S are around the 10 mark when on boost.

Any advice would be great.

Thanks

[Grant Monkhouse]

i would ust get it tweaked, also .8bar is rather gheey, 1 bar minimum. even then its practically normally aspirated

[dom187]

Hahah it was like that when I got it!

[dom187]

If I take the car on a track day without getting the map tweaked, could the car go bang?

[BlitzBoy]

no it shouldnt, as what you have done has made your tune richer and lost some power by plumbing the wastegate back in. Just check your spark plugs from time to time as you may foul them with the richer tune

[dom187]

Thanks BlitzBoy I will keep my eye on the plugs. Now just gotta find someone to map/tweak it when I have the money...

[BlitzBoy]

Depends where you live dude, but I map FD RX7s twice a month on a Saturday down at Surrey Rolling Road in Cobham just off the M25/M3, Ooop North would be Pip at WGT, North London\\Essex would be Jaydee or Exeter/Devon world be Ross at Dragon