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Mazda Rotary Club

Cars by Model Type => 3rd generation RX-7's => Topic started by: Bobfish on March 06, 2007, 06:47:07 PM

Title: Noisy Rex\'s
Post by: Bobfish on March 06, 2007, 06:47:07 PM
Gotta love em :o)

Just taken mine for a spin round the block, ebay downpipe and decat + 4inch jasma system (4 inch all the way from cat section back) with 4 inch tip and un-silence back box.

Idle is loudish, but not massively offensive - car hasnt been mapped yet so driving very sedately just to keep her fluids running...blipping the throttle on downshifts is absoloutely gorgeous!  She just barks so loud with a jump of 500rpm up as i shift down, i love it :)


BRAP, BRAP, bwwaaaaaaaaaaaaa BRAP BRAP BRAAAAAAAAAPAPAPAPAPAPPAPA :Talking1 :Thumbsup!
Title: Noisy Rex\'s
Post by: antnicuk on March 06, 2007, 07:09:47 PM
give it a few months,  you will want something a little more sedate!  Or maybe i have had rx7\'s for too long and i\'m getting old.

Its taken me years to get mine quiet without loss of performance
Title: Noisy Rex\'s
Post by: Grizzly on March 06, 2007, 07:27:02 PM
you know what they say, You Hear a Powerfull Rotary before you see it :yes
Title: Noisy Rex\'s
Post by: mikeyh on March 06, 2007, 07:30:06 PM
im loving the noise my rex makes either idling or driving down road.
only thing is if i was to do a long haul as the droning is abit unbearable.
Title: Noisy Rex\'s
Post by: n4bes on March 06, 2007, 07:31:48 PM
Quote from: mikeyhim loving the noise my rex makes either idling or driving down road.
only thing is if i was to do a long haul as the droning is abit unbearable.

HaHaHaHaHaHa..........and that\'s without the downpipe.........lol
Title: Noisy Rex\'s
Post by: mikeyh on March 06, 2007, 07:38:10 PM
well we`ll find out thursday m8
hope your bringing your marigolds
Title: Noisy Rex\'s
Post by: n4bes on March 06, 2007, 07:39:23 PM
Quote from: mikeyhwell we`ll find out thursday m8
hope your bringing your marigolds

Just hanging them up to dry just now......................
Title: Noisy Rex\'s
Post by: RobbieRX-7 on March 06, 2007, 07:52:45 PM
I take you 2 are attempting to change the downpipe. I\'ve just fitted a reamemiya dolphin backbox on mine. Loveley burble on tickover and is nice n quiet. Im in 2 minds wether to fit my stainless downpipe or leave it to one of the vendors
Title: Noisy Rex\'s
Post by: mikeyh on March 06, 2007, 07:54:14 PM
yip im(cause they`ll just get in the way(lol)going to change the downpipe for a 4` one but if it`s too loud its coming back off again.
Title: Noisy Rex\'s
Post by: n4bes on March 06, 2007, 08:02:24 PM
I\'m head screwdriver holder for the evening......................lol
Title: Noisy Rex\'s
Post by: ro284 on March 06, 2007, 08:35:46 PM
QuoteRobbie, I\'ve just fitted a reamemiya dolphin backbox on mine. Loveley burble on tickover and is nice n quiet. Im in 2 minds wether to fit my stainless downpipe or leave it to one of the vendors

Same here mate got the same backbox and enormous DP, silenced mid pipe to come yet, but looking at the DP is a bit daunting!! i hope that as the motor was rebuilt 2 years ago, i might have a chance of getting it off with lots of WD! i don\'t know if it\'s best from the top or underneath or both!
good luck Bob
Title: Noisy Rex\'s
Post by: mikeyh on March 06, 2007, 08:39:39 PM
if you do a search you`ll find a good ref on how to do it.
looks like its good to get from above once you remove all the turbo pipes.
im quite lucky ive got oxy acetaline bottles and burning gear lol
Title: Noisy Rex\'s
Post by: Bobfish on March 07, 2007, 09:26:51 AM
When you do replace the DP, remove the studs (if you can do it easily!) and install new studs and new nuts. Tap the nuts out before you install them, the mazda nuts use a locking mechanism that locks the nuts to the studs, and the studs rust in the holes = snapped studs.

tap the new nuts out and youll have easy downpipe changes for years.

p.s dont think ill get bored of the noise! I hardly ever drive the car, its only for going out for blats so im sure itll be fine :)
Title: Noisy Rex\'s
Post by: michaelb on March 07, 2007, 04:56:29 PM
Hi

I have just got back from Canary Warf to North London and I am half def…

I have had recently silenced mid pipe put in and together with HKS back box it is just getting to my max re noise….

I am not sure if it will stay this way, I may go the high flow cat way as oppose to de cat â€" the car is fduckin’ loud !!!

Regards,
Michaelb
Title: Noisy Rex\'s
Post by: strange_days_uk on March 07, 2007, 05:01:39 PM
As stated above take special care with the studs when changing the downpipe

99% of the time they snap !
Title: Noisy Rex\'s
Post by: RobbieRX-7 on March 07, 2007, 05:27:05 PM
Thanks for the advice carl. So if 1 of the 4 sdud snaps in the turbo pack whilst removing the dp, is it a turbo off job, and if 1 of 8 stud snaps taking the turbo off, is it a engine out job?
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