Jump to content
SAU Community

Changing T78 To Pt6262 For Torque

Nismo 3.2ish
 Share

Recommended Posts

Nismo 3.2ish Grand Master

Nismo 3.2ish

Posted
Posted

I am chasing low end torque in my R34GTR, so I am changing the T78(Dyno chart) for a PT6262 and adding poncams Bs on a strong motor.

I am booked in for the work next week and have asked for the car to be tuned for more low end torque. As you can see from the Dyno reading (as I was told) is bad and would be a bitch to drive, it is.

They said with the new turbo and cams they can tune it to the response I asked for and will be happy with the results.

Has anyone got a Dyno readout to show me what more Torque looks like on 338KW so I can compare it.

post-52098-0-06933700-1396423916_thumb.png

Link to comment
https://www.sau.com.au/forums/topic/441405-changing-t78-to-pt6262-for-torque/
Share on other sites
kudos.motorsports Grand Master

kudos.motorsports

Posted
Posted

Hi Peter,

I can't comment on the PT6262 as I have no experience with them however would suggest you match the turbocharger to your requirements (power v response). The T78 is far too big a turbocharger for the power you're making and there are far more responsive options that will yield better results.

If you would like options feel free to give me a call.

Regards,

Andrew Sullivan

Kudos Motorsports

(07) 5641 1171

Nismo 3.2ish Grand Master

Nismo 3.2ish

Posted
  • Author
Posted

Had a look at posts and it does help me understand it, my curve is very low and slow to rise , just like it is to drive, lots of gear changing and a pig to do step hill starts and goes hard after 5k. If I did not live in the bush I would hardly ever use the turbo.

Thanks everyone for that info and it helps me and it lets me see how laggy mine is.

When they are doing the work I will have them email me a reading, at least now I have some idea if it is going to be OK and I will post it before I go to Sydney to pick it up, hopefully you and others can comment if you think they have done a good job ?

My dyno torque reading just looks so dead compared to most of the others here with similar KW.

They said the motor mods etc will handle more power, maybe need more fuel but I have enough HP, I just want a fun street car not a laggy heap

Nismo 3.2ish Grand Master

Nismo 3.2ish

Posted
  • Author
Posted

Had a look at posts and it does help me understand it, my curve is very low and slow to rise , just like it is to drive, lots of gear changing and a pig to do step hill starts and goes hard after 5k. If I did not live in the bush I would hardly ever use the turbo.

Thanks everyone for that info and it helps me and it lets me see how laggy mine is.

When they are doing mine I will have them email me a reading, at least now I have some idea if it is going to be OK and I will post it before I go to Sydney to pick it up, hopefully you and others can comment if you think they have done a good job ?

My dyno torque reading just looks so dead compared to most of the others here with similar KW.

They said the motor mods etc will handle more power, maybe need more fuel but I have enough HP, I just want a fun street car not a laggy heap

Hi Peter,

I can't comment on the PT6262 as I have no experience with them however would suggest you match the turbocharger to your requirements (power v response). The T78 is far too big a turbocharger for the power you're making and there are far more responsive options that will yield better results.

If you would like options feel free to give me a call.

Regards,

Andrew Sullivan

Kudos Motorsports

(07) 5641 1171

Thanks Andrew but the car goes in on Monday for the mods

The car has had a lot done on the motor and was a work in progress, T78 was part of the build but the bloke ran out of money and sold it before he completed the build.

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

    • defari
      What Music Are You Listening To?

      By defari · Posted

    • defari
      What Music Are You Listening To?

      By defari · Posted

      https://www.youtube.com/watch?v=KyZDvZmvhik
    • GTSBoy
      Car Rotisserie

      By GTSBoy · Posted

      You'd be better off digging a pit and standing under it to shoot it.
    • MBS206
      Troubleshooting - motor wont turn over

      By MBS206 · Posted

      The easiest way would to be ignore the oscilloscope, grab a multimeter, and make sure all the main connections are right. An oscilloscope will give 99.9% of even technicians so much grief, as they have no idea what things should even look like on an oscilloscope. Which is also even more likely for someone who's first ever major work on a car is this If the battery volts are dropping down so low, the LDV will reboot the ECU, when it does so, it will drop out the start circuit. If this is occuring, the battery voltage should also come back up. Give it a few tests, even simple ones like when you're attempting to crank it, measure voltage from the engine block, to the negative terminal. You might find you've got really bad connections somewhere. My guess is the "new" motor has something like a shit starter motor, at which point, you can swap the starter motor from the old motor, to the new motor. Before I did any of the above though, I'd 100% confirm the battery in the vehicle. Most jumper packs are absolutely useless, especially if a battery has a bad cell for example. Also the new modern "jump packs" if you don't know what you're doing with them, you won't even get them into high current stage. So go back to basics, check the battery, especially with a known good one as a replacement test. Check ALL the wiring, this includes where they're bolted onto the battery, and bolted onto the starter motor. Check all the earth straps are on. Measure your resistances across your earth straps. A good check here is to measure voltage across the earth straps while you're trying to crank it. If you're seeing voltage, you've got high resistance joints! Oh, and once you've done the above, check the battery over again.
    • MBS206
      Car Rotisserie

      By MBS206 · Posted

      For most rotisseries, as Duncan has mentioned, you really don't want a full car on it, you want a stripped shell. And imagine how many more weeks THAT is going to add to working on the car...
×
×
  • Create New...