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  • Member For: 16y 11m 24d
  • Gender: Male
  • Location: Loitering in SEQ

Well ive got the eng & g/box covered but my thoughts are goin down upping the power level road. I dont want a dyno queen but I want somethng that's gonna do solid 10's any day of the week & make around 500. I know the bigger the turbo generally the more lag. It will spend most of its life as a street machine & occasionally run down the 1/4 so its all about bottom end response but it needs to make enough power up top to be scary. (Have a bad habit of rpm & boost lol.) I dont really want to go the t04z as its not that much bigger than the factory unit. I figure there has to a compramise out there but where it is??? hence my post. Its not really something ive looked at.

I cant justify a hks unit as nice as it would be so it has be on areasonable dollar value. Most importantly its gonna be matched up with a zf. I havent seen too many of these pushed so any help would be good.

My other thought is strap the factory turbo to one of ETM's stage 1 setups & see how it goes. It just needs a little more to make it completely useless on the street but awesome down the strip. Decisions decisions!!! There is always a compramise!!!

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https://www.fordxr6turbo.com/forum/topic/60216-the-perfect-combo/
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  • Donating Members
  • Member For: 22y 3m 17d
  • Gender: Male
  • Location: Sydney, NSW

just what I've been researching dude... you can't go wrong with an ETM manifold with a GT4294 and a 50mm 'gate... it's good for 550rwkws, which is more then enough for a low 9 second pass... plus I've been told the boost response is only slightly worse then the stock setup due to the efficiency of the manifold...

definitely what I'll be going once the coin allows...

  • Silver Donating Members
  • Member For: 16y 11m 24d
  • Gender: Male
  • Location: Loitering in SEQ

this was my thoughts exactly. Was abit worried about lag but your right with this manifold it should help. Would be good to have some first hand knowledge with someone using this combo with the zf. I really dont want to be the guinea pig lol

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  • Member For: 16y 1m 12d
  • Gender: Male
  • Location: QLD

Billet SB70-GTS

(CNC Machined T7 7075 billet compressor wheel)

• Standard compressor options

Billet-SB70. Inducer 70mm, Exducer 102mm,

• Compressor cover options

Billet-GTSR Race cover. 4” inlet, 3” outlet.

• Compressor cover optional upgrades

Bullet port shrouded Billet-GTSR cover. 4” inlet, 3” outlet

• Standard turbine

Billet-GTS. Inducer 81.3mm Exducer 75.2mm.

• T04 foot printed T04 exhaust housing options

Open T04. .68 A/R, .81 A/R, .96 A/R.

Divided T04. .70 A/R, .85 A/R, .95 A/R, 1.00 A/R, 1.06 A/R, 1.15 A/R, 1.19 A/R, 1.32 A/R. 1.52 A/R.

• 750hp to 950hp

sb70_with_map.jpg

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  • Donating Members
  • Member For: 18y 11m 15d
  • Gender: Male
  • Location: Sydney NSW

The last GT45 I had anything to do with made 450wkws on 15psi... ETM mani and dump, my 4inch inch race exhaust & cooler, plaz plenum, atomic motor.

I've experienced a few GT42 and GT45 combos now, both on my own cars and customers BA-BFs and they do work well. Carefull wastegate positioning has to be looked at to avoid laggy slow rising boost.

Due to their very large turbines, lag can be very easy to end up with which isnt much fun on a motor that wont spin too high, so manifold and wastegate design is very important, as is exhaust flow... biggest is not always best.

  • Silver Donating Members
  • Member For: 16y 11m 24d
  • Gender: Male
  • Location: Loitering in SEQ

So maybe the gt42 on an etm manifold with a custom dump on my 3 1/2 really free flowing exhaust might be the answer. I'm not scared to run some boost through it as im sure it'll handle it to make abit more top end if it means I can keep abit of low end punch.

The whole reason im havin 2nd thoughts about a bigger turbo is I dont want to lose that low down punch you get from the factory turbo. There is always a compramise.

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  • Donating Members
  • Member For: 18y 11m 15d
  • Gender: Male
  • Location: Sydney NSW

Yeah that's the trade off... the stock turbo tuned well can be huge down low, which just wont happen on a low comp motor with a 42 unfortunately.

The perfect combo wont come round on the first set-up though, If your seriously into it prepare to try some differnt combos, I like to start off big and work backwards, that way you can find your top end goal, and try to bring up the lower/mid range through exhaust housings/manifolds/piping/exhaust ect... and tuning, and tuning, and tuning :)

  • Silver Donating Members
  • Member For: 16y 11m 24d
  • Gender: Male
  • Location: Loitering in SEQ

I think it might even be worth trying the factory setup & try it tuned with no boundries as far as not having to be worried about breaking an eng or box & see how it feels. I dont really want to be swapping & changing because im so far away form the blokes that look after the car.

If there was something between the t04z & the 42 that would be nice. Maybe a bigger housing on the t04z. So many ideas no real knowledge or experience on these things doesnt make it easy. The fact I cant just jump into a car with this setup makes it a real guessing game for me.

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