How much 'popping' is normal

[craigyb]

I have an R400 with RBTBs, and wondered how much popping from the exhaust is considered normal?

 

Thoughts?

[Nigel Riches]

Some people on these forums have the ecu specifically tuned for this, so is yours set for this condition? Or is it a new phenomenon? in which case there could be something as simple as an air leak on the exhaust system causing it. Look for signs of exhaust gas blowing past a gasket, black smudgey mark indicating a failed seal. Personally, I prefer the quiet exhaust. 

Nigel 

 

[MADMALC]

Lots is the unhelpful answer.

If you are using '4 star' try using '5 star'. My SLR was considerably less poppy on the better fuel.

[craigyb]

Mine is very 'poppy', which sounds great, just wondered what was normal - and that seems to be the case.

I have a carbon airbox which reduces the popping compared to the big filter, for trackdays.

 

Thanks
 

[john aston]

I got miserable apologies for pops on my R400D until I got the RBTB upgrade. Lots is normal- but you can reduce it (if you are worrying you are making an exhibition of yourself ) by not touching the accelerator at all when you lift off- if you only lift off 95%  and foot is still covering pedal you get far more bangs and pops. Guaranteed  to turn heads of adolescent lads from 9 to 90   at 100 yards range