Jump to content
SAU Community

Mines Front Pipe - Questions

StretchGSK

By StretchGSK,
in Engines & Forced Induction

 Share

Recommended Posts

StretchGSK Enthusiast

StretchGSK

Posted
Posted

Hi

I have installed a used Mines front pipe that i got a really good deal on.

I was mainly looking for a little exhaust note tuning for that Mines sound.

I was surprised what a difference the equal length front pipe made to the exhaust note :-)

It is an older version with 60mm at the turbo's into 70mm.

As this is the same sizes as the OEM front pipe I don't expect much performance gain.

However boost response feels improved.

Is it possible or is it just the smoother sound tricking me?

Will admit I was enjoying the sound to much to take note of actual RPM vs boost

There is no flex joint in the pipe, are there any issues with not having one?

Lastly if the pipe diameter is the same would I need a dyno run to be sure AFR is still ok?

In fact can anyone point me at some good resource for understanding what sort of changes require a re-tune?

Thanks

Stretch

Link to comment
https://www.sau.com.au/forums/topic/348932-mines-front-pipe-questions/
Share on other sites
KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

Unless you have an aftermarket ecu you can't "re-tune" it anyway. For an expert look at your car take it round to Geoff at Shred Motorsport:

Shred Industries Performance, 67 Pharazyn St Lower Hutt 5010, Melling, Lower Hutt City

they have plenty of Skyline experience.

StretchGSK Enthusiast

StretchGSK

Posted
  • Author
Posted
  On 02/01/2011 at 12:25 AM, KiwiRS4T said:

Unless you have an aftermarket ecu you can't "re-tune" it anyway. For an expert look at your car take it round to Geoff at Shred Motorsport:

Shred Industries Performance, 67 Pharazyn St Lower Hutt 5010, Melling, Lower Hutt City

they have plenty of Skyline experience.

Thanks for the reply, I do have an F-Con so a re-tune is possible.

I am just not sure what sort of physical changes it can cope with on its own?

Andre at Speedtech looks after my baby but I must pop in to Shred some time

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

no flex is always a problem as its not absorbing movement of the motor and exhaust. this can lead to cracked manifolds over time due to weight/heat.

as for tuning, as above, no point even if you had a ECU to be honest. not enough of a change to warrant the expense really.

  • 2 weeks later...
StretchGSK Enthusiast

StretchGSK

Posted
  • Author
Posted

Quick update after a visit to my tuner.

First the boost response was not improved as the dyno plot shows the boost peaking at the same RPM....amazing what sound and your mind can make you think.

I guess this was to be expected considering the pipes were the same diameter.

The AFR had leaned out in the top part of the rev range.

Front pipes and cat back exhausts combined to make the AFR a full point leaner and he could hear some detonation.

So I think the $$ to getting the tune checked was well spent

On the plus side after a tweak to the tune there was in increase of 21 KW which I was not expecting at all add that to how she sounds now and I am very happy!

Thanks for the input from those that replied.

Stretch

Harey Veteran

Harey

Posted
Posted
  On 15/01/2011 at 7:42 AM, StretchGSK said:

Quick update after a visit to my tuner.

First the boost response was not improved as the dyno plot shows the boost peaking at the same RPM....amazing what sound and your mind can make you think.

I guess this was to be expected considering the pipes were the same diameter.

The AFR had leaned out in the top part of the rev range.

Front pipes and cat back exhausts combined to make the AFR a full point leaner and he could hear some detonation.

So I think the $$ to getting the tune checked was well spent

On the plus side after a tweak to the tune there was in increase of 21 KW which I was not expecting at all add that to how she sounds now and I am very happy!

Thanks for the input from those that replied.

Stretch

Did it improve the response as well? Post up the dynos if you have them :)

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • TurboTapin
      boost source Size Garrett gt28 gen2

      By TurboTapin 路 Posted

      You just need to remove the compressor housing, not the entire turbo. I would not be drilling and tapping anything with the housing still on anyways. 
    • Kinkstaah
      Mistakes were made, my R34 Story

      By Kinkstaah 路 Posted

      So, I put my boat on a boat. First of all, I'm going to come out and say it. Why is Tasmania not considered a holy goal, an apex that all road-legal modified cars go to, to experience? This place is an absolute wonderland of titanic proportions. If people are already getting club runs for once in a lifetime 30 person cruises to Tassy then I've never seemed to see it. It is like someone replaced the entire place with an idyllic wonderland for cars, and all of the people living there with paid actors who are kind, humble, and friendly. Dear god. After doing a lap of almost all of the place I've found that it's a great way to find out all of the little things that the car isn't doing quite right and a great way to figure it all out. All in all, I drove for 4 hours a day for a week and nothing broke. I didn't even need to open the engine bay. This is by all means a great success, but it has left me with a list of things to potentially address. I also now have a 3D printed wheel fitment tool which annoyingly hasn't got any threads in it to actually assemble it. I might be able to tape it together to check the sizing I actually want to use, but it'll likely involving pulling the shocks out to properly measure travel at least at the front, and probably raise the car while I'm at it, at least in the rear. I scraped on quite a few things and I'm not sure how else to go about it. I was taking anything with a bump at what felt like 89 degree angles. And address those 10 other tasks. And wash the car. God damn it is dirty. And somehow, the weather was perfect the entire time - And because I was on the top of Mt Wellington it turns out it was very much about to freeze up there. I did something I typically never do and took some photos up there in what must have been -10 and the foggy felt like suspended ice, rather than mere fog. If you own a car in Australia, you owe it to yourself to do it.
    • QB6SAGR
      Battle of the broken skylines

      By QB6SAGR 路 Posted

      Damn that was hilarious, and a bit embarrassing for skylines in general 馃槀 vintage car life ey. That R33 really stomped. Pretty entertaining stuff
    • cosline
      R32 gtr transmission strength, billet plate

      By cosline 路 Posted

      Hi, I have a r32 gtr transmission. Does any of you guys have an idea how much power it will hold with the billet center plate and stock gearset? At what power level and use did yours brake with or without billet plate? Thanks, Oystein Lovik
    • Rezz
      Spotted on the street....

      By Rezz 路 Posted

      Saw this replica police car based on a Mitsubishi Starion XX parked next to a 'police box' (it's literally a box) in Hirohata, Himeji City in Hyogo prefecture the other day. It's owned by Morii-san who is a local Mitsubishi Starion enthusiast. According to a local radio station blog post, he always wanted to make a police car himself based on ones he saw in his favourite Manga comics.  As it's illegal to modify a car to look like a police car and drive on the road, Morii-san tried many times to get permission from Aboshi police station headquarters nearby. They refused initially by after they got tired of that they granted him permission. However, the car can only be displayed on private property and obviously can't be registered as long as the police livery is present. The car was completed at a cost of 1.5 million yen (US$ 10,000) in addition to the car cost. A location was chosen outside Hirohata Police box where the car can easily been seen from the street. Morii-san has two other Starion road cars, both widebody GSR-VRs.
脳
脳
  • Create New...