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Everything posted by Truenotch
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- 225 replies
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Truenotch's BEAMS AE86 racecar discussion
Truenotch replied to Truenotch's topic in Project Discussion
I reckon muffler length and diameter have the largest effect over what it'll sound like. AdrenalinR mufflers are long (intentionally) to try and cut out as many of the low waves as possible, while also (hopefully) catching the higher pitches. Also what Dave was trying to say is that your rasp might get less as you dial in more advance. The closer (in time) the bang is to exhaust valve opening, the louder / sharper the explosion will be in the pipe. You've got me thinking, so I'm watching this video again after 9 years: -
Truenotch's BEAMS AE86 racecar discussion
Truenotch replied to Truenotch's topic in Project Discussion
I'd say wait until you've heard it singing at full noise before making a change. The Vibrant mufflers aren't as good at toning sound down as an AdrenalinR from my experience (which is why Murray swapped to AdrenalinR in the end). Your expansion chamber might be adding to the rasp too? Figuring out how sound works in an exhaust is fucken hard to do. Here's what the baffle looks like. It's just perforated tube and stainless packing. -
Truenotch's BEAMS AE86 racecar discussion
Truenotch replied to Truenotch's topic in Project Discussion
It's a Vibrant StreetPower that I ordered from the USA.... 7 years ago along with a small stainless Vibrant resonator. This is the exact same combo Murray @iwanttobeamole had on his DC5 before he decided it was too loud and went to AdrenalinR mufflers instead. His car sounded good, so I copied him. One of the best things about having this exhaust done is not having to trip over or move those mufflers ever again. They've finally been put to use and my hoard is ever so slightly smaller -
The car dropped some coolant out the back of the head after running it up to temp last night. I knew my coolant pipes back there were pretty dodgy and had them on the list to sort out anyway. The old setup was a combination of hoses, hose clips and a bit of Altezza hard line. Ugly and was never good. I've updated it with a cap screw blocking off the small hose (instead of a bolt in a rubber hose ) and an AN fitting with an elbow. It's a lot tidier than the old way, but kinda bulky, so there's a few nuances to fitting it with the engine in the bay. Ran it up to pressure and it seems good. That's a win! Then I noticed a small oil leak... my melty cam angle sensor that's been through hell finally decided to start leaking oil. So I guess that's my next job to sort
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The exhaust is all done. I'm absolutely stoked with the how it fits. Sounds good so far and it should be even better on the racetrack Another quick family photo whole these 3 are together in the workshop:
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Fluid MotorUnion: "You can't make a Prius sound like a Judd V8" Roman: "Hold my beer"
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Got the car onto the hoist today and made a start on the exhaust. Brandon was an absolute legend and spent the day fitting pipes and tacking things together. It's coming along well! Welded a new 2.5-3" transition onto the headers with a V band first: Then a few hours later we had this: We used pre made pie cuts for some it and a couple of mandrel bends. It's so nice only having to make straight cuts with the bandsaw! Feels like cheating. Had to throw one of my TEs under Brandon's starlet to see how it looked... Not bad! Hopefully we'll have it close to finished tomorrow.
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I'll go with 136kw. Can't have it beating my Beams (it probably will).
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Fly to Cheech and jump in a Woundermobile with me and Nick?
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Had me going for a sec there too! No backing out please.
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Discuss here about Yoeddynz's little Imp project...
Truenotch replied to yoeddynz's topic in Project Discussion
Also, never weld directly above an oily rag while wearing shorts, your leg hairs will never forgive you. Oh god, it's happening to us. -
Discuss here about Yoeddynz's little Imp project...
Truenotch replied to yoeddynz's topic in Project Discussion
80% of those are on @yoeddynz's Facebook and Youtube posts. -
Discuss here about Yoeddynz's little Imp project...
Truenotch replied to yoeddynz's topic in Project Discussion
I love that @yoeddynz's thread is being hijacked by MR2 stories. The sketchiest MR2 I ever drove was @Sungai Sungai's with completely fucked shocks. Snappiest car I've ever driven - it's lucky they spin on a dime, cause I managed to spin it on a 1.5 lane road out the back of Tokomaru and end up facing exactly the same way without leaving the road. Anyway, please get more vids of this from the outside. It sounds amazing. -
Discuss here about Yoeddynz's little Imp project...
Truenotch replied to yoeddynz's topic in Project Discussion
I drove one of these at U-drive Hastings once with @Steelies in the passenger's seat during Hawke's Boes one year. Most understeery AND snap-oversteery thing I've ever driven. Do not recommend hooning one on smooth concrete with a questionable wheel alignment. It just goes to show that a poorly maintained and questionably set up car will almost always be shit. -
Woah, Elliot still exists! Welcome back.
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2025 Mahinapua Moped Melee. 28th Feb- 2nd
Truenotch replied to RUNAMUCK's topic in South Island Region
Glad to hear you're using the Crusade to warm up for the Melee @alfalfa . See you at both. -
Churr. Flights booked. See you all in August.
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@RUNAMUCK @- i5oogt - @JustHarry What's the go with bedding? Placing to book my flights tonight and need to figure out if I need a bag or not. Churr
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Advice required: Making complicated brake duct out of aluminium sheet
Truenotch replied to Hyperblade's topic in Tech Talk
^ This is the method. Fibreglass shoild be ok? But if you do it with carbon it'll be great. I think the SR86 ones were carved out of foam and just wet laid over top, then dig out the foam afterwards: -
Pretty sure we'll be flying and driving a Wounders Inctm vehicle from Cheech to Hanmer. You're welcome to join, @azzurro, as long as you're willing to put up with us for a few days.
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Discuss here about Yoeddynz's little Imp project...
Truenotch replied to yoeddynz's topic in Project Discussion
The muffler is looking good. You can buy muffler packing in sheets or as loose fluff. We used to sell a bunch of it at City Honda and it's more hardy than using wall fluff or other kinds of fibreglass insulation. Click here to dive into the world of muff packing: https://shop.cityhonda.co.nz/collections/shop?q=muffler+packing* -
This thread is 9 years old. https://letmegooglethat.com/?q=wellington+metal+polishing+services