XrSexc Member 47 Member For: 15y 3m 17d Posted 25/11/10 12:58 AM Share Posted 25/11/10 12:58 AM Hey guys, just a little background first. My car is an 06 BF XR6 turbo, 6sp auto, around 60,000kms on the clock, and always used BP Ultimate since I bought it with 50,000kms on it. Only mods are blue power cold air intake, and centre muffler removed.Now to my question, I've had my centre muffler removed for a while now, but I only recently decided to give it some revvs in neutral on my drive way. I gave it some good throttle, maybe up to 3500rpm, but on the engine dropping revvs back down, it let out some HUGE and very loud popping noises, which scared me hehe. I'm used to the 'burbling' effect it gives when de-accelerating in gear while driving, and I expected a similar noise when stationary, but not this loud popping noise!I've watched some youtube videos of people free revving their cars and none of them seem to pop like mine, they all just 'burble' down. Is there something I should check out in my exhaust system? Loose bolts somewhere? Any help would be greatly appreciated! Link to comment https://www.fordxr6turbo.com/forum/topic/71844-free-rev-popping/ Share on other sites More sharing options...
Stazza_Brendan Donating Members 686 Member For: 15y 8m 7d Gender: Male Location: Mackay QLD Posted 25/11/10 04:42 AM Share Posted 25/11/10 04:42 AM My turbo starion would do this with its 3 inch exhaust when the dump pipe bolts came loose and air could get inbetween exhaust housing and dump.Have a look if all the bolts at the joins are tight.Sent from Galaxy S using Tapatalk Link to comment https://www.fordxr6turbo.com/forum/topic/71844-free-rev-popping/#findComment-1058393 Share on other sites More sharing options...
davidald Me Donating Members 360 Member For: 18y 2m 21d Gender: Male Location: Adelaide Posted 25/11/10 07:45 AM Share Posted 25/11/10 07:45 AM And get some new valve springs Link to comment https://www.fordxr6turbo.com/forum/topic/71844-free-rev-popping/#findComment-1058434 Share on other sites More sharing options...
ScatterBrain Donating Members 316 Member For: 16y 16d Gender: Male Location: Brisbane Posted 25/11/10 08:22 AM Share Posted 25/11/10 08:22 AM The popping noise is the unburnt fuel igniting in the exhaust, The cure is to get the car tuned and adjust the overrun mixtures. Link to comment https://www.fordxr6turbo.com/forum/topic/71844-free-rev-popping/#findComment-1058444 Share on other sites More sharing options...
mic Donating Members 1,725 Member For: 17y 5m Gender: Male Posted 25/11/10 08:51 AM Share Posted 25/11/10 08:51 AM On 25/11/2010 at 4:42 AM, Stazza_Brendan said: My turbo starion would do this with its 3 inch exhaust when the dump pipe bolts came loose and air could get inbetween exhaust housing and dump.Have a look if all the bolts at the joins are tight.Sent from Galaxy S using Tapatalk^^ excellent reply, and do NOT replace your valve springs the bf ones are sweet !! Link to comment https://www.fordxr6turbo.com/forum/topic/71844-free-rev-popping/#findComment-1058452 Share on other sites More sharing options...
XrSexc Member 47 Member For: 15y 3m 17d Posted 25/11/10 10:09 AM Author Share Posted 25/11/10 10:09 AM Thanks a lot for all the info guys, really appreciated! Yeah, I'm pretty sure I'm good with the valve springs, but I'm also not looking at doing any crazy power mods anyway. My final product that I'd be absolutely happy with would be BluePower CAI, replace straight through exhaust pipes with hot dogs (centre muffler already gone), and a custom tune. I'm really only looking at wanted 250 - 260rwkw... You guys think that is feasible? Link to comment https://www.fordxr6turbo.com/forum/topic/71844-free-rev-popping/#findComment-1058462 Share on other sites More sharing options...
Benji_vs Donating Members 403 Member For: 17y 1m 11d Gender: Male Location: East Suburbs Melbourne Posted 25/11/10 08:59 PM Share Posted 25/11/10 08:59 PM 260rwkw is quite feasible in my opinion, not everyone needs 350rwkw+ lol, but yeah have had mine tuned for over a year and it runs well. It might be a good idea to get injectors as well just for better fuel delivery, and scope to upgrade. Link to comment https://www.fordxr6turbo.com/forum/topic/71844-free-rev-popping/#findComment-1058505 Share on other sites More sharing options...
davidald Me Donating Members 360 Member For: 18y 2m 21d Gender: Male Location: Adelaide Posted 25/11/10 11:54 PM Share Posted 25/11/10 11:54 PM XR would you post back when it's fixed? Link to comment https://www.fordxr6turbo.com/forum/topic/71844-free-rev-popping/#findComment-1058532 Share on other sites More sharing options...
XrSexc Member 47 Member For: 15y 3m 17d Posted 26/11/10 07:27 AM Author Share Posted 26/11/10 07:27 AM Sure will mate. Just been busy with work. But I'm going to put my car up on my ramps and check all the connections from the headers -> turbo -> dump pipe -> cat. Hopefully all it is, is just a loose screw somewhere. I bought a torque wrench a while ago specifically for things like this Link to comment https://www.fordxr6turbo.com/forum/topic/71844-free-rev-popping/#findComment-1058646 Share on other sites More sharing options...
our06t Mmmmm......BOOST Member 3,135 Member For: 18y 1m 21d Gender: Male Location: central coast Posted 26/11/10 10:13 AM Share Posted 26/11/10 10:13 AM I didn;t think you where able /or supposed to rev the auto's in nuetral maybe a rev limit thing from the ecu Link to comment https://www.fordxr6turbo.com/forum/topic/71844-free-rev-popping/#findComment-1058692 Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now