New to the forums just learning a bit about the cars.

I dont currently have a Z but i do have a G, and one of my past projects was a SR20 swapped 240....sx (><).

Im really looking for a good base tostart on, but there isnt much that isnt a pile of rust around me.

And im also stuck on the 240z not sure why but thats what ive limited myself to.

Here are a couple snaps of the G since everyone loves pictures.

Hi Fico:

Easy for us to understanding anyone wanting a 240Z. They are beautifully styled and engineered - by any standard.

That is an interesting exhaust system on your G - I wonder how different it would sound with and without the dead end mufflers or resonators. Hard to picture exactly what effect they would have on exhaust gas flow. Know of any technical data or third party testing that was done?

You'll hear it often - buy the cleanest body you can find - pay the extra money up front - it will be the least expensive in the long run.

Good luck,

Carl B.

Welcome to the Group! Nice G, sort of a modern Datsun Z 2+2. I have a G37 Convertible and enjoy it, when my wife let's me drive it to the gas station to fill the tank.

Check Craigslist or AutoTrader on line ads for Zs. Watch for rust, ask questions on this forum, and enjoy the ride!

Dennis

Its an ARC Replica, which ARC does alot of R&D into its products. The actual effect is similar to a blowing into a bottle, the air going in is slower then coming out, so it speeds up the gas as it exits. Its a great exhaust cruise control at 90 and i cant even hear it.....untill i get on it and then it has a nice rumble.

Thats my plan because im not much of a body man, i can build an engine but cant paint a straight line .

Right now im just reading, learning, and looking.

Those are helmholtz resonators and they're used on many modern production cars, mostly on intake and exhaust systems. If you look carefully enough, you can usually see tubes of varying size sticking out perpendicular to an intake or exhaust tube. They have nothing to do with speeding up gasses. What they do is damp certain frequencies out (that frequency depends on resonator volume), thereby reducing annoying resonance or "drone" from the exhaust and/or intake.

EDIT: Examples

Intake

Exhaust

S2000

IS250

Edited June 26, 201212 yr by LeonV
Adding pics

Makes sence i was just quoteing what ARC told me

Very interesting... thanks guys..

It does explain why its so damn quiet. its almost to quiet infact... i like to use it to gently let the person infront of me know they are going 25 in a 35 and i can barely get it to scare small children but oh well..... My exhaust and intake on a RWD version of my g was making 300whp so thats not to shabby either.

Personaly though the Twin loop muffler is my favorite nothing beats it in my mind so quiet when you want it so loud when you need it thats what i have on my civic right now.