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HyperGear SR20det turbocharger Innovation, Evaluation and Testing - Hardtuned.net - Page 19

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HyperGear SR20det turbocharger Innovation, Evaluation and Testing 

554 replies to this topic

#541 pur40m

  • Joined:16-February 05
  • Location:Australia NSW
  • Car:180sx

Posted 28 January 2017 - 04:32 PM

Yes had a adjustable reg and extra bar fuel pressure
But make sure your fuel pump is up to the task
Need a walbro 460lph atleast rewired
I was on eflex which is usually about e70 so on united e85 will be alil less headroom

#542 HyperGear

  • Joined:28-February 06
  • Location:Australia VIC
  • Car:180SX, S14, S15, R33, R33, 300ZX

Posted 03 March 2017 - 10:55 PM



Ball bearing option is now available to all ATR28 series and TD06-SL205 series.

We can carry now carry out bush bearing to ball bearing conversions to all Garrett T25 / T28 based bush bearing turbochargers, as well as other TD06 and TD05 based turbochargers.

#543 mr_sleeper

  • Joined:30-October 11
  • Location:Australia NSW
  • Car:180sx

Posted 04 March 2017 - 08:20 AM

how much extra to go ball bearing in an atr28ss1.5?

what would be the difference in the way the turbo behaves between bush and ball bearing in the atr28ss1.5?

#544 HyperGear

  • Joined:28-February 06
  • Location:Australia VIC
  • Car:180SX, S14, S15, R33, R33, 300ZX

Posted 04 March 2017 - 09:32 PM

You will be looking at $450 to carry it out. There is a pretty noticeable difference in throttle response.

#545 RyanSD180SX

  • Joined:27-April 14
  • Location:Australia QLD
  • Car:94 180SX Type X

Posted 06 March 2017 - 03:56 PM

View PostHyperGear, on 04 March 2017 - 09:32 PM, said:

You will be looking at $450 to carry it out. There is a pretty noticeable difference in throttle response.

Does the ball bearing conversion make it spool up much quicker?
For example will an ATR28SS2 ball bearing come on as quick an ATR28SS1.5 bush bearing?
From memory I think there's a 300rpm difference between the two reaching full boost (20psi) in a bush bearing setup.

#546 mr_sleeper

  • Joined:30-October 11
  • Location:Australia NSW
  • Car:180sx

Posted 16 March 2017 - 07:08 AM

I am curious on the answer to this too as I was looking at the atr28ss1.5 for the response and the answer might make me change my mind

#547 Varvs

  • Joined:21-December 07
  • Location:Australia NSW
  • Car:97 180sx Type X

Posted 16 March 2017 - 08:53 AM

 RyanSD180SX, on 06 March 2017 - 03:56 PM, said:

 HyperGear, on 04 March 2017 - 09:32 PM, said:

You will be looking at $450 to carry it out. There is a pretty noticeable difference in throttle response.

Does the ball bearing conversion make it spool up much quicker?
For example will an ATR28SS2 ball bearing come on as quick an ATR28SS1.5 bush bearing?
From memory I think there's a 300rpm difference between the two reaching full boost (20psi) in a bush bearing setup.

Ball bearings are maybe 500rpm faster at the most.

#548 Goliath101

  • Joined:25-March 13
  • Location:Australia NSW
  • Car:99 S14a

Posted 16 March 2017 - 05:22 PM

Thought I read somewhere that there wasn't a massive differences in the ATR28 series?

#549 pur40m

  • Joined:16-February 05
  • Location:Australia NSW
  • Car:180sx

Posted 16 March 2017 - 06:24 PM

Its not just full boost will come on sooner
Transient response will be much better with ball bearing

#550 HyperGear

  • Joined:28-February 06
  • Location:Australia VIC
  • Car:180SX, S14, S15, R33, R33, 300ZX

Posted 20 March 2017 - 03:46 PM

It really comes down to the size of the wheels and housing. Ie, if I run an ATR28SS15 on BB I probably won't notice much differences, while SS2 will be quite noticeable.

#551 Wizard

  • Joined:09-February 10
  • Location:Australia NSW
  • Car:Moneypit

Posted 22 March 2017 - 07:10 PM

Transient response is life changing with ball bearing in general. At 4000 rpm, my HKS 2530 would hit boost quicker than a bush bearing T28. I thought when I downgraded the T28 would be on boost all the time, but the car was a dog in between bursts. I dont care when full boost is so much, you can drive around it, but losing transient response killed the car.

#552 andhey

  • Joined:10-January 11
  • Location:Australia VIC

Posted 25 March 2017 - 01:58 PM

Going to get my ss2 bb'd and also going external gate at the same time along with a touch up tune. Will be interesting to see the difference

#553 RyanSD180SX

  • Joined:27-April 14
  • Location:Australia QLD
  • Car:94 180SX Type X

Posted 27 March 2017 - 03:32 PM

I'd like to see some dyno results of the ATR28SS2BB to get an idea of the response.
My ATR28SS15 comes on full boost (20psi) at 3.7krpm and I feel like much laggier than that wouldn't feel the best on the street.

#554 HyperGear

  • Joined:28-February 06
  • Location:Australia VIC
  • Car:180SX, S14, S15, R33, R33, 300ZX

Posted 13 April 2017 - 09:04 PM

Video footage from Victoria Time Attack last week at Philip Island. Our team won first at 1.35.72
TopStage S14 SR20det running our ATR45SAT BB turbo made 399rwkws@ 28psi



#555 liambrm

  • Joined:07-March 07
  • Location:Australia VIC
  • Car:1993 180sx

Posted 14 April 2017 - 09:07 AM

absolute beast love to see dyno sheet looks responive.





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