Jump to content
SAU Community

DYNO RESULT: T517Zs on GTR

JAGR33

By JAGR33,
in Engines & Forced Induction

 Share

Recommended Posts

whatsisname Grand Master

whatsisname

Posted
Posted

Yeah very true Andrew, it's not going to make much of a difference.

I just rang Simon (the guy I mentioned above) and he said that it's possible to make at least a 10hp gain just by using light weight pistons and rods. 10hp isn't much, but it all adds up.

  • Replies 136
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

JAGR33 Grand Master

JAGR33

Posted
  • Author
Posted

meshmesh- yeah we'll have to twist Nigel's arm to get this going I think!!! It would be more accurate if they are done on the same dyno and same day....

Merli- be more than hapy to see your beast on the dyno!!!!

sub- fantastic!!! what sort of time frame you looking at having your car ready????

Anybody out there with the Apexi AX's on a GTR (in Melb)???

R31Nismoid Grand Master

R31Nismoid

Posted
Posted
meshmesh- yeah we'll have to twist Nigel's arm to get this going I think!!! It would be more accurate if they are done on the same dyno and same day....

Yeah, it'd be a lot better.

Same dyno, same day, same air temps etc etc.

The list goes on.

vspecv Proficient

vspecv

Posted
Posted

hey jack,

i had the t517z-10 on my bluer34 and it made 345kw on bens dyno, i think at 1.3.

i had t517z-8 on my silver r34. in my opinion the 8s are much nicer, im surprised u went with the 10s, u seem to be concerned about lag,then why the 10s, if u had a built engine and were aiming for bigger numbers than 350 i would understand.

i think if u drove a 8cm car , u may spew u went with the 10s.

ben may still have the dyno sheet for the apexi ax turbs, he tuned one for me about 2 years ago.

jezzrrr Community Regular

jezzrrr

Posted
Posted
hey jack,

i had the t517z-10 on my bluer34 and it made 345kw on bens dyno, i think at 1.3.

i had t517z-8 on my silver r34. in my opinion the 8s are much nicer, im surprised u went with the 10s, u seem to be concerned about  lag,then why the 10s, if u had a built engine and were aiming for bigger numbers than 350 i would understand.

i think if u drove a 8cm car , u may spew u went with the 10s.

ben may still have the dyno sheet for the apexi ax turbs, he tuned one for me about 2 years ago.

Did yo have any trouble with the turbos/oil temps ?

What sort of power difference with the T517Z 8's vs 10's ?

Jeremy

JAGR33 Grand Master

JAGR33

Posted
  • Author
Posted

Hey Dean,

I didn't know about the two sizes until after I bought them!!!! Oh well, you live and learn I guess.... Was there a considerable difference between the 8cm and 10 cm???? As far as response and power???

JAGR33 Grand Master

JAGR33

Posted
  • Author
Posted

Just looking at JMS's old R33 GTR drag car, and they're claiming the car made 381 rwkws on 1.3 bar, using T517Z 8cm low mount turbos.... Heres the link to the page which also provides a dyno graph....

http://www.japanesemotorsport.com.au/whiter33gtr.html

How do they get so much power out of these turbos on 1.3 bar and stock motor???

Does this seem right???

Guest INASNT

Guest INASNT

Posted
Posted
Just looking at JMS's old R33 GTR drag car, and they're claiming the car made 381 rwkws on 1.3 bar, using T517Z 8cm low mount turbos.... Heres the link to the page which also provides a dyno graph....

http://www.japanesemotorsport.com.au/whiter33gtr.html

How do they get so much power out of these turbos on 1.3 bar and stock motor???

Does this seem right???

every car jms has had they have bullshitted their power. I remeber they were saying their rb25 was making over 400rwkw with stock internals and living

Sydneykid Grand Master

Sydneykid

Posted
Posted
I remeber they were saying their rb25 was making over 400rwkw with stock internals and living

I have seen 3 of their cars die, smokey deaths at that. :wavey: But hey when you have a warehouse full of spares, does it really matter? At their cost, it probably works out cheaper to keep replacing standard engines than building a decent one. :wassup:

vspecv Proficient

vspecv

Posted
Posted
Hey Dean,

I didn't know about the two sizes until after I bought them!!!! Oh well, you live and learn I guess.... Was there a considerable difference between the 8cm and 10 cm???? As far as response and power???

i dont think there was a huge difference with power with 8s and 10s, but the 10s were a bit laggy, a bit 2540 ish. i didnt like them

jezzrrr Community Regular

jezzrrr

Posted
Posted
Just looking at JMS's old R33 GTR drag car, and they're claiming the car made 381 rwkws on 1.3 bar, using T517Z 8cm low mount turbos.... Heres the link to the page which also provides a dyno graph....

http://www.japanesemotorsport.com.au/whiter33gtr.html

How do they get so much power out of these turbos on 1.3 bar and stock motor???

Does this seem right???

Thats one hell of a dyno graph - very nice, I am asking the same question too, how does that engine hold together in stock form ?!

Emre Proficient

Emre

Posted
Posted
Posted by Jack  

Just looking at JMS's old R33 GTR drag car, and they're claiming the car made 381 rwkws on 1.3 bar, using T517Z 8cm low mount turbos....  

How do they get so much power out of these turbos on 1.3 bar and stock motor???

So in other words if I put some '****tail' fuel and advance the timing, should I expect a considerable difference in power (in excess of 350rwkws) without raising boost???

More boost = More power

More timing = More power

Too much of either = Detonation = Risk of engine failure.

You can phuck an engine with shitloads of timing at low boost, or shitloads of boost with low timing.

Decent fuel > Pump fuel

Timing and boost with decent fuel > Timing and boost with pump fuel

Power output with decent fuel > Power output with pump fuel

Cost of decent fuel is minimum $5 per litre = $100 per 20 litre drum

This will give you 40 litres of fuel in your tank = 2/3 full, if mixed to 1:1 ratio.

Total cost of fuel in tank = $120

Running 1.3 bar with decent fuel @ cost above = Pointless and IMO stupid.

To summarize,

Guys @ JMS or any other workshop around the country (yes, including the guys from Perth) do not have a secret, or a trick unknown to others, to make a lot more power than Ben @ RacePace or Nige @ ICE. If you want more power, go and see the boys and they will give it to you.:)

The JMS car has done 11.2, i did 11.4

JMS car had 385 rwkw, i had 330 rwkw.

The mph on JMS car is not known, i did 124 mph.

There is not much point in delving into matters any more than that.

:cheers:

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

    • GTSBoy
      new 1.5 LSD issues/concerns

      By GTSBoy · Posted

      A 1.5 way is a 2 way. It is just a 2 way with a less aggressive ramp on overrun.
    • GTSBoy
      Boost cut after swap(RB25DET NEO) R34

      By GTSBoy · Posted

      The ABS and/or TCS being missing/broken will not cause the engine to misbehave. It just casues CEL to come on and annoy you. The CEL is useless if it is always on, so you have to do the things you have to do to get rid of it, so it can be useful. Being a Stag ECU, then yes, it will not expect TCS to be present. But it will expect ABS to be present and working. You will need to either make the ABS CU talk to the ECU (don't ask me what that will take on an NA R34), and make sure the hardware is working....or, you just need to blank it out in Nistune. Do not persist with the stock ECU. You will just have problems. Gte it Nistuned. Start from there. DO YOU HAVE A BOOST SENSOR? The ECU's boost sensor that it. It is connected to the loom at the rear of the coil cover. Usually rides on the firewall on an R34, but is usually bolted down to a bracket along with all the other crap at the back of the coil cover when a Neo is dropped into another car. If you do not have it, the ECU will shit the bed. So, do you have one?
    • Kapr
      Boost cut after swap(RB25DET NEO) R34

      By Kapr · Posted

      So sadly the fuel pump etc was not it. The pump and filter is new and it is still cutting around 4000 rpm. A read something about ABS/TCS (engine is from stagea and ECU too so no TCS) and i dont know for 100% that my car has ABS. It has ABS "cube" in engine bay but i dont think it works(or at least from my braking experience). Can be something like that?  I will be driving the car next week to Nistune tuner to properly see what is wrong...  
    • JC71
      new 1.5 LSD issues/concerns

      By JC71 · Posted

      the Tomei LSD fluid with lsd kit. frustrated that it was shaking the car to crap and affecting everything else negatively, I pulled the diff last night, and removed the lsd carrier, could not find anything wrong, however it seem to be 100 locked up acceleration, and deacceleration, wondering if they sent me a 2 way not a 1.5??  either way I installed the stock open carrier back in place. test drove everything smooth as butter again. no shake, shutter, random, what felt like clutch slip and grab or drive shaft play, etc. something differently wrong in side the lsd. I might bother taking it apart (if possible) to figure out what's going on inside this carrier, as bought too long ago to return.  only draw back is its back to a one wheel wonder.
    • TurboTapin
      Most women will agree that parking is the most taxing part of driving

      By TurboTapin · Posted

      What a time to be alive!!
×
×
  • Create New...