For a while now my car has been backfiring. I do have a Ø50mm (2" est.) exhaust system with the standard maifold. Is my 180se Astina's Fuel mixture too rich? My timing is set on 11deg advanced? Is this serious?HELP!

Does it backfire all the time, or just occasionally ? Mine often gives a very satisfying "POP" when I'm thrashing her and I drop the clutch and change into the next gear ...

Mine is currently broke - hole in the middle box - that pops every now and again - it's little amounts of un-burnt fuel igniting from the heat i think...

Only occasionally, but if I rev her while in neutral the exhaust gives of small little backfires.

Could be down fuel mixture.

Do you have an FSE PBV?

I know when I fitted mine, I had the mixture a little high on the fuel side - that made the exhaust pop quite alot!

L8rs....... #;o)

[quote]Do you have an FSE PBV? [/quote]
Mind me for asking, but what does the above stand for?

Apols! I almost knew that was coming!

Anyways, stands for Power Boost Valve. The FSE is an adjustable fuel pressure regulator that replacees the standard un-adjustable unit!

http://www.club323f.com/ba/tuning/fse/fse_fitting.php

ttfn Phil

Nope! Have none of them fitted. Maybe I should take my car to get the CO mixture checked?

Rather get a Unichip fitted, and get the mixture dead right across the rev range ...