Jump to content
SAU Community

Recommended Posts

Made 520whp on GT-SS.Now, I just swapped to -5, added water-meth and charge pipe.

Just wondering when the 3 inch exhaust become restrictive?

( Suck because I like the sound of mine and bought a 150$ ultra-quiet resonator as a test pipe, varex electric valve and one extra muffler, I heard that 3.5 inch exhaust sound a bit too rumbly isn't it ?)

Made 520whp on GT-SS

I highly doubt it.

What fuel?

But to answer your question, normally 3inch cat back will be ok for 450hp at the wheels.

Most of the important stuff is before the cat so it depends on what you have there

I wll say it again ( I got bashed before on this forum). I don't care if ppl don't believe my number. I'm not a showoff and couldn't care less about bragging my setup/numbers online. Number are only for reference not for bragging.

Fuel is 94 octane.

So what I should do is get a Y pipe ( front pipe, we call it?) 3.5.. TRY to find a resonator 3.5 inlet and 3.0 outlet. That will be the hard part.

Going up and down .5" doesn't really need different flanges. I.e. you can bolt 3" to 3.5" so long as the bolt holes are in the same spot. I'd imagine it would flow a bit better with matching flanges though...

I wll say it again ( I got bashed before on this forum). I don't care if ppl don't believe my number. I'm not a showoff and couldn't care less about bragging my setup/numbers online. Number are only for reference not for bragging.

Fuel is 94 octane.

So what I should do is get a Y pipe ( front pipe, we call it?) 3.5.. TRY to find a resonator 3.5 inlet and 3.0 outlet. That will be the hard part.

Well it matters how much HP you ACTUALLY make because you are asking how much HP your exhaust can handle.

If you make more HP than you should be able to on the pipes you have then nothing you are told is going to mean shit

What mph does it run at the drag strip?

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • For these last 7 years of ownership, I've always had to use a small scissor jack under one of the front tow hooks to raise the front just enough so my low-profile jack fits under to reach my subframe jack point. I'm beginning to get annoyed of always having to do this. Are there any lower low-profile jacks that fit under the gtr lip on a dropped car?
    • Seat of the pants assessment of the new intake: The car is way less "doughy" when hitting the loud pedal, especially off idle when stopped or in traffic, I did use a cheapo lazer thermal thingo to measure the temp around where the pod filter got its air, it was between 55 - 60°C, in saying this the car was shut off and not moving, so the OEM intake pipe was not supplying any fresh air to where the pod was when the car was at least moving A weird bonus was induction noise on the throttle in the cabin increased a bit,  I was worried that I was actually going to lose some of that induction noise I love so much, outside though, when I got the daughter to do a WOT drive by pass for me, the induction noise has increased alot when on the throttle, not quite ITB doort, but well up there I'm extremely happy with the results and have been exploring the country roads in the region  As for house mods: 1.New front fence is up and is awesome, it really upgraded how the joint looks from the street, and the added security is nice 2. Electricians have replace some interior lights, and with more lighting in the garage, a few new motion detecting lights out the front above the garage, front room, and at the front door, which I have already found heaps helpful coming and going, also now has fancy pants CCTV all round the house The only hold point for power though is the solar and batteries due to supply issues, although this will happen over the next few weeks 3. I have done a heap of landscaping out the front and I'm almost ready to do a new small retaining wall with some nice blocks to replace the brick and cemented in rocks around the raised garden beds cemented in river stone "was the fashion at the time" the house was built. I currently have a pallet of retaining wall blocks and 2 bulka bags of 20mm blue metal to replace the wood chip that is in the raised garden beds around the house 4. I now have 3 big raised garden beds for out the back to grow some vegetables, about 70cm high, 200cm long and 100cm wide 5. My 2 compost bins are already pretty full with brown, green and kitchen waste from the landscaping I'vedone so far, but they will probably take a few months to break down, so anything else that gets chopped, trimmed, and kitchen waste will just start filling the base of the raised garden beds to about 30cm before I start throwing 40cm of good compost, and stuff, for the vegetables to grow in, I'll need a few ton of compost and soil, but the local supplier can sent me bulka bags of the stuff Basically the logs, wood chips and a few strategically placed rocks for drainage, will give the beds some good organic materials down low to break down over time, and they will hold moisture during the warmer months to save the water in my big arse water tank if we don't get alot of rain So, all in all, the car and house mods are going well, and I'm really enjoying being retired, I sleep in too 0700 and slowly plod around inside until I feel like actually doing anything, and only work in the yard for as long as want, which has actually been alot over the last few weeks,  although when you look at it, it seems that not a huge amount of work has been done,  until I look at the before I started the work pics Happy days and good times indeed 
    • hahaha yeah. Plan is to get side skirts and probably just rear pods. But going to do them one-by-one. I've got a set that I really like from RHDJapen, but that one isn't shipped to AU. So need to find someone who can get it for me
    • Here's an idea, answer the questions I asked you as they are trying to work out WHY the LSD will be binding up in a straight line.
×
×
  • Create New...