Jump to content


Skepticism

Member Since 27 Nov 2012
Offline Last Active Mar 27 2017 08:29 AM
*----

Posts I've Made

In Topic: help with compressor maps for the Gen II Gtx2860r & Gtx2867r

14 December 2016 - 02:50 PM

What I noticed is that v2 looks to have worse efficiency overall, and especially at higher boost levels - 2.5 pressure ratio and above, which is >20psi give or take. The new maps also show a smidge of extra flow at the very far edges of the map, but it's unclear if that will translate into real life or if it just looks good.

Therefore I'm sort of skeptical they'll make any extra power, if anything I'm worried they'll be worse than v1, in particular for 2L turbo engines on E85 and high boost. Suspect they're aimed at turbo-converted V8s on lower boost - mind that Garrett is also releasing reverse rotation variants for symmetrical twin turbo setups.

In Topic: efr 6258 t4

07 November 2016 - 03:15 PM

 1200ute, on 06 November 2016 - 06:35 PM, said:

I forgot to also mention reverse rotation as well on the gen 2. More aimed at v engines to allow mirror image engine bays I guess.

Agreed. Unfortunately these seem to be designed for bigger engines running lower boost. One look at the compressor map and you can see that the efficiency above 20psi is absolute balls. And actually the efficiency in general is sacrificed to an extent for meagre gains in flow at the top-end - so intake temps will be a tad warmer as well than the first-gen GTX.

In Topic: Let's Talk Brake Pads!

13 October 2016 - 12:52 PM

View Postrusty1, on 06 August 2016 - 07:47 PM, said:

Apart from good pads two of the best things I did to improve braking durability on the track was remove backing plates and install air ducting guides, brought my braking temperatures down significantly....

I thought backing plates were good for thermals and kept fluid temps down?

For a track car removing em wouldnt matter too much but for daily you get sick of going SQUEEEEEEEE every time u stop

In Topic: How old are u and what import you drive?

04 October 2016 - 09:56 AM

29. Had my 180 for 4 years. I had plans on modding it, but it was too fucking stock and was such a nice daily that I sort of didn't want to. After looking at a few modded 180s and toying with getting a modded GTST, I wound up trying out an Evo VI and was pretty amazed at how much better it felt to drive - plus they're silly fast on track - so I got one with basic mods and ordered some MCAs.

FD RX7 is what I really wanted but it's hard to find a good one, plus they're a tad expensive and will get pricier as time goes on, so not sure if I'll ever own one

In Topic: GTX3067

29 August 2016 - 12:30 PM

270 is just a huge fkn cam, even 264 is a big cam for your setup - so your boost threshold would be cam limited for sure. You have far less VE at lower rpm and not enough exhaust flow/pressure for the turbo to spool up.

It's fine if you're spinning up around 8000-8500rpm, but otherwise it shifts power too far into high rpm. By way of example, stock cams are good between <3500 and 6000. 270s optimise flow for like... 5500-8500 or something? If you set your rev limit at 7250 (based on dyno) then you've chopped out nearly half of the powerband, whereas a nice set of 256s would be great from 4k-7k and all's good.

Common Links

  • About Us
  • Privacy Policy
  • User Agreement
  • Help & Support Forums
  • Advertise
  •  

    By your continued use of this site, you agree to follow all Rules & Guidelines and abide by the User Agreement outlined in our Terms & Conditions.

    Hardtuned Network is hosted by Sanity Technology

    Design, Site Management & Hotness provided by Loz.

    Big thanks to all our members and volunteers for making this network what it is today!