making the L6 sound meaner
Posted 31 July 2005 - 03:00 PM
i remember you saying your exhaust is around 116db gav, this would be in a particular rev range yeah? do the cops give you looks? because that would be my main concern and also i think the legal limit is loud enough hehe, but then it would probably get to expensive for something i want to change down the track when i do an engine conversion
also i'd like to disconnect the engine fan and have one thats opperated by a switch, and was wondering how hard this is to do.
any opinons would be appreshiated, thanks -evan
Posted 31 July 2005 - 09:09 PM
gavs sound is unique as its twin pipes that are straight,
Posted 02 August 2005 - 06:11 PM
It took two mufflers & 2 "hot dogs" to get mine to sound the way I like it, ie minimal reverberation, deep but not excessively loud to wake up the entire hood when on the gas.
Firstly I removed the stock exhaust & manifold & fitted extractors or headers as the US guys like to call em. Cost & $180.00, (Note; be prepared to make up some silly washers to clamp down on some of the extractors out there, I had to do this. From memory you did the same with prior last 260, Nate!?).
Next was 2.25 inch pipe straight through larger size hot dog to big ricey "muffler" which a small cat could quite easily have crawled into. big mistake! way too loud and lost all bottom end power with a head splitting reverberation at about 2500 rpm.
Solved the probem by reducing the hot dog and changing the muffler to what I think was called a "TURBO FLOW" muffler with a 2.5" dumper which also helped reduce fumes entering the car from rear which is still a slight problem I'm trying to fix!
I think all up the correct set up for me costed about $550.00, but the sound is just right especially at idle and also when openned up down the street. hmmm...I've got a lot of growing up to do! hehehe
Posted 02 August 2005 - 09:47 PM
yeah my car really stinks like exhaust at the moment, as my lights aren't fixed in properally at all (still hoping to get the set off you Sulio if thats cool, but then again 240 rear lights look better everytime i look at them) and then i dont have that interior panel in either not that it would do much in my opinion but still...from everything i've read there isn't that much that can be done about it except replace all the rubber, put a downwards facing exhaust on and also the rear spoiler? -evan
Posted 02 August 2005 - 11:02 PM
Posted 03 August 2005 - 03:26 PM
that will make the car louder.. but also drone a bit more on freeway speeds...
Posted 04 August 2005 - 04:49 PM
I have HM Headers, 2.25 exhaust, one hotdog and muffler. Sounds tough. Dont go too big on the exhaust as backpressure is an issue. It is interesting Sulio that you mentioned those "washers" in order to match up the header base plate with the inlet manifold (due to the difference in thickness). Initially I did not do this and found that all of my head studs would bend over with the heat. So I had these offset washers machined up. I have no issues now
The little things we do!......
Posted 04 August 2005 - 05:50 PM
Posted 04 August 2005 - 10:14 PM
Do you remember the size of the thick part of the washer
Posted 05 August 2005 - 01:15 AM
all you need to do is with the washers, the are around 1cm thick around that, you need to grind .5cm off, half of the washer, so that one side of the washer is thicker than the other so you get pressure on both objects or else the gasket will blow every time you rev it to 6500...
if you don't get what i am saying im sure you will when you put the extractors on, or i'l make a litle diagram
i blew 3 gaskets in 7days back when i was 18, the good ol days, do it right the first time and you won't have to take evrything on and off my me and sulio had to do so many times.....
Posted 05 August 2005 - 09:20 AM
Posted 05 August 2005 - 06:15 PM
Posted 05 August 2005 - 08:15 PM
Posted 05 August 2005 - 08:57 PM
Posted 05 August 2005 - 10:41 PM
Posted 06 August 2005 - 11:23 AM
If I were in your shoes I would save up a couple of hundred dollars and get some Super Low King springs installed. You'll get a firmer ride and the car will look alot more aggressive especially that you've got your new spoiler on the front. I picked mine up for $200.00 a set of 4 but you will prolly find em cheaper 2nd hand on ozdat. But I'm pretty happy with ride hieght and I think alot of the guys here would have gone for the same set up. Your shocks bushes etc are another thing of course but it's a start.
Anyways just my 2cents worth.
Posted 06 August 2005 - 11:46 AM
Anyone want a full set of brand new Koni Reds, unused on the road? Only fitted to my 260, rears will also fit a 240 (fronts have had the cartridge modified)
Posted 06 August 2005 - 06:23 PM
Posted 27 August 2005 - 06:34 PM
Fronts are 175lb and the rears are 180lb units."
should i buy them? how much would u pay for them as they are second hand, i think they are around 4 years old. they are for 260z 2 seater i believe but will work in 240z also...or mayb the other way around?...how hard are they to put in?
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