tortron Posted August 3, 2016 Share Posted August 3, 2016 more or less as long as i like (it can go the entire floor pan from the wheel well to the axle if needs be) I want it to be quiet now because im old i suppose 2 Quote Link to comment Share on other sites More sharing options...
mjrstar Posted August 4, 2016 Share Posted August 4, 2016 By page 10 I was semi fired up and ready to have a fairly fiery rant at the lot of you.. Before reading through this I'd already planned these: RB30DET with Holset HX52W 3 and choked by it, but I won't care...One of the above exists, the rest are wet dreams that I'm steadily working towards... though I have most of the parts . Another data point, i have been helping my work mate a bit with his 2j ma70, its making 530 wheel kw on 28 psi boost. It runs a 4 inch dump pipe back into a 3 inch system under the drivers footwell. So your dream rb30 may not be all that asthmatic with a 3 inch system. A good camshaft selection and a t4 twin scroll borgwarner are the only major mods other than fuelling and ignition. 1 Quote Link to comment Share on other sites More sharing options...
locost_bryan Posted August 4, 2016 Share Posted August 4, 2016 more or less as long as i like (it can go the entire floor pan from the wheel well to the axle if needs be) I want it to be quiet now because im old i suppose Yeah, it's a bugger when you can't stop yourself becoming a GOM. Gone are the days of megaphones on Minis... Quote Link to comment Share on other sites More sharing options...
fishtailfred Posted August 6, 2016 Share Posted August 6, 2016 Another data point, i have been helping my work mate a bit with his 2j ma70, its making 530 wheel kw on 28 psi boost. It runs a 4 inch dump pipe back into a 3 inch system under the drivers footwell. So your dream rb30 may not be all that asthmatic with a 3 inch system. A good camshaft selection and a t4 twin scroll borgwarner are the only major mods other than fuelling and ignition. Great data point! He has about as much in kw as I want in hp 600hp @ crank is my modest goal, though the HX52W will go up to around 850 crank hp which is roughly what your mate's 2j is running, and where RBs fall into pieces without extensive love Cheers! Quote Link to comment Share on other sites More sharing options...
CorollaGT Posted August 8, 2016 Share Posted August 8, 2016 Engine masters on header size 1 Quote Link to comment Share on other sites More sharing options...
fishtailfred Posted August 8, 2016 Share Posted August 8, 2016 Cap screws! Do they not exist in 'merica? What's the ID of the ports, well, they're rectangles, what's the cross sectional area of the ports? And of the three tubes? Those videos are a lot like (old) top gear - mostly just entertaining. Quote Link to comment Share on other sites More sharing options...
Yowzer Posted August 9, 2016 Share Posted August 9, 2016 It has pushrods, who gives a fuck how scientific it is. 4 Quote Link to comment Share on other sites More sharing options...
Rookie Posted August 12, 2016 Share Posted August 12, 2016 You do a good job of making yourself look like a knobjockey Fred... 2 1 Quote Link to comment Share on other sites More sharing options...
fishtailfred Posted August 23, 2016 Share Posted August 23, 2016 Is it the lipstick or the high heels that do it? 1 Quote Link to comment Share on other sites More sharing options...
SOHC Posted November 22, 2016 Share Posted November 22, 2016 I wondered if I installed a super coby round the other way with the chamber facing back it would be louder? Quote Link to comment Share on other sites More sharing options...
tim13 Posted December 17, 2016 Share Posted December 17, 2016 So I asked earlier about improving sound quality on my au wagon and didn't get much response , then I procrastinated until my xr6 muffler disintegrated and I finally had to do something (other than complain !) I now have an exhaust note I am happy with on my falcon , the recipe that worked for me is a 2 1/2" system with a 18" coby followed by an 'afterburner' (trademe $80) and followed by what was originally a front resonator from an xr6 , seems to have freed some midrange torque and improved pitch and volume from the previous manifold to main xr6 muffler to resonator system (also 2 1/2) (please note no actual science or data has be used to leap to these conclusions) Quote Link to comment Share on other sites More sharing options...
Yowzer Posted December 18, 2016 Share Posted December 18, 2016 Video of stationary full load cooling efficiency test please 3 Quote Link to comment Share on other sites More sharing options...
SOHC Posted January 1, 2017 Share Posted January 1, 2017 I have hand made a new muffler for my Volvo, its big and pretty heavy but should flow relay well 1 Quote Link to comment Share on other sites More sharing options...
kpr Posted January 2, 2017 Share Posted January 2, 2017 2 Quote Link to comment Share on other sites More sharing options...
pusherman Posted January 5, 2017 Share Posted January 5, 2017 Soo mrchickity came help me do exhaust stuff today (gc). Not that we did any exhaust stuff coz sedan exhausts dont fit wagons soooo we guna make one from scratch. And i kinda like the idea of having twin pipes (tips). Keep in mind this is not for max fasts. More for weekending. Any body know what cars have them single entry twin exit mufflers. Eg an oval muff with the in pipe at same end as one out pipe and an out pipe at t'other end. I can feel hate brewing for my wank factor exhaust Quote Link to comment Share on other sites More sharing options...
kpr Posted January 5, 2017 Share Posted January 5, 2017 mr2? 1 Quote Link to comment Share on other sites More sharing options...
Kiwibirdman Posted January 6, 2017 Share Posted January 6, 2017 The flowmaster mufflers that have been under my Silverado for the last 9 years fell apart. The tail pipe rusted completely out of one side and the other muffler wasn't far behind. When i climbed underneath for a proper look both were starting to look like Swiss cheese. I had never been super happy with the sound that came out of them, the truck just didn't sound quite right and there was a real drone at 1800 rpm, or 95 kph in top gear. The new mufflers are a straight thru design, much like the magnaflows in the video above and so far I really like the sound. It sounds like a V8 driving around normally, motor way speed is quieter and it awesome when given a boot full. A big win so far. I am not sure that I would bother using the flow masters again. 1 Quote Link to comment Share on other sites More sharing options...
SOHC Posted January 7, 2017 Share Posted January 7, 2017 I got a new 50 series flowmaster and it was just plain steel with some paint on it, it rusted out round the seams, I replaced it with a Forzaflow witch was a fraction of the price and it was even ally clad and sounded pretty cool on the V8 Quote Link to comment Share on other sites More sharing options...
SOHC Posted January 23, 2017 Share Posted January 23, 2017 This is by far the best sounding muffler ever, a Super Coby, the added trumpet makes it sound even better, I have duels on my v8 Ford with Super Cobys witch are going to the trumpets soon. 1 1 Quote Link to comment Share on other sites More sharing options...
fishtailfred Posted February 12, 2017 Share Posted February 12, 2017 Sohc, excuse my laziness and link a thread about your chosen Volvo fettish participant? Cheers. Quote Link to comment Share on other sites More sharing options...
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