No better era in my opinion for Australian touring car racing, Johnson -ingall -seto -larko-morris-skaife-perkins-bowe , the list is endless , these blokes brought personality to the already great spectacle, you can shove the gen 3 super sedan cup were the sun don't shine as we've simply lost the magic !
And the thing was, you would legitimately have 20 drivers who could win. Johnson, Radisich, Seton, Skaife, Ingall, Perkins, Murphy, Ambrose, Bowe, Clowndes, Brad Jones, Brighty, all those guys were race winners, from all different teams and both manufacturers. Now, there’s what, 6? drivers with a real chance of winning? I used to watch every single round from when I was about 8 through to now, and im 45 now, and I barely watch Gen 3 because they’re just not interesting to me, and Skaife is so far up RBR ass it’s just painful to listen to.
Was there during this era for a round at Barbagallo. Seto drove it like he stole it, and broke a front splitter/bumper twice that I remember. Thanks for sharing.
Most hated the A.U.s as of their rounded (aerodynamic) design. Rumour has it their aero was hobbled as they were too aero dynamic. I drive a 99 manual tickford ute... 170,000. Ks .. , had an au as a company car. Left ELs in the dust round corners... now, i love big SUVs that tailgate me thru corners... some panic brake, some break rims on kerbs.... i like it, gets 96yo mum and wheelchair to appointments... and a bit of fun if feeling vindictive.
Hey Lorenzo awesome work with the vid and your comments are super informative. I am running my built HC NA motor with 4P head through catted (HJS100 cellPE 108X130mm) 4-2-1 Solid Fab manifold into totally stock cat back and am at 265HP which is pretty amazing. My tuners tell me a 3" cat back may yield towards 280HP but I hate the resonances which the K20 can produce in the FN2 (I've tried many other zaust combos). Can you imagine any secret sauce set ups which will keep the exhaust resonance free yet free up some power ? I was contemplating showing a local exhaust fabricator the pics of the muffler internals (courtesy of you) and see if they can build a slightly bigger muffler using 63.5mm inlet sizes but using the same internal baffler layout including the Helmholtz...... do you think this is feesible or prone to errors in the baffling and Helmholtz set up ?
Hi TB993tt, That sounds like an awesome engine, bravo!! I think the gain from going to 63.5mm from 60mm will be minimal and you could consider at least 70mm/2-3/4" (or just do the 76mm). "do you think this is feesible or prone to errors in the baffling and Helmholtz set up ?" Sounds good to me! Helmholtz resonators (or quarter wave tubes) are really sensitive to exhaust temperature. Ideally you'd make it with a slip fit, so you can adjust the resonator length in case it's not quite right. You could try to remake the OE muffler in 70mm or 76mm, with say 2x 60mm or 2.25" tailpipes. I think the way it feeds the exhaust directly into the resonator chamber makes it particularly quiet. I'll try to take some measurements of the resonator chamber for you:
The dimensions of the OE resonator chamber are roughly: INLET PIPE = 2" x 145 mm CHAMBER = 140mm (cross ways) x 150mm (-4.8mm double wall thickness) x 140mm (-4.8mm double wall thickness) CHAMBER = 2700 (cm^3 / mL) Except the inlet takes up part of the volume of the stock chamber, so it's more like: CHAMBER = 2700mL - 72 mL Probably not significant, so don't worry about that. It wouldn't have to be the same layout , it could just be your 63.5-65-70mm exhaust (with some kind of straight through muffler) but with a 145mm-long 2" arm branching off going into a chamber with a volume of 2700 mm^3. If you have one of the single exit exhausts, you could branch the dead-end resonator chamber off to where the right hand exit of the exhaust would normally go maybe? [Stock back box = 150mm tall, 140mm deep, 540mm long]
Here are some pics: Muffler cut open i.imgur.com/rHWXRyn.jpeg i.imgur.com/AMsYAPA.jpeg Modded muffler i.imgur.com/BbLDFuv.jpeg i.imgur.com/mSesowo.jpeg The left solid baffle that forms the resonator is 140mm in from the end like I said. The right hand perforated baffle is 100mm in from the right end, and the second perforated baffle after that is another 120mm in from that. But I got rid of the middle baffle and don't have any drone at all, so I don't think it's important for drone (getting rid of the central baffle only made the exhaust like 20% louder, which is OK for me). Overall dimensions 140mm x 150mm tall x 540mm long like I said. Hope this helps, cheers. I think it's mainly the Helmholtz chamber that's important for eliminating drone/resonance. If you can find a place that has an English wheel to roll truck mufflers they can probably do a project like this.
I have a 95 Civic EX with ABS with stock 15/16 MC and the pedal travel seems long and feels spongy. Perhaps I should upgrade the calipers to bigger Integra or another model? I don't know which is a direct fit. Perhaps you can chime in? Thank you!
Thanks for this!!!! It helped me to make an educated guess about the cause of a very annoying rattle inside the muffler - and to fix it with a simple self-tapping screw into the left-most resonator box, into the exit pipe. Rattle gone (y)
