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Turbo for Manual BA to make 450rwkw+


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  • less WHY; more WOT
  • Site Developer
  • Member For: 15y 11m 19d
  • Gender: Male
  • Location: Melbourne

He said he had oil pump gears, and it'd be a miracle to make the power he does without valve springs haha.

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  • Donating Members
  • Member For: 13y 24d
  • Gender: Male
  • Location: Brisbane

Lol @ k31th.. very true

Atomik Valve Springs and billet oil pump gears are currently in it.

Thanks sixman its not all about the power its more so how its delivered. Currently on track days it takes to long to spool and get power on rolling starts. Need nearly 60kms in second gear to get spool happening fast.

The precision seems to be the win, how much boost can the f6 bottom end hold on stock pistons and rods with 98?

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  • Donating Members
  • Member For: 19y 8m 6d
  • Gender: Male
  • Location: Hills District, NSW

I had 450rwkw with stock fg valve springs and no float, was that way for about 12 monthd. Did upgrade them for peace of mind.

 

I know what you mean about delivery. In second gear the precision is spooling hard by 45km/hr. In comparison the gtx3576 comes on hard just under 40km/hr.

 

If your tracking it definitely think about a surge tank and also driveshaft upgrade.

 

Not sure how much a stock bf bottom can take.

 

For track work in a manual, nelsonian is the man to chat to about turbo choice

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  • Donating Members
  • Member For: 13y 24d
  • Gender: Male
  • Location: Brisbane

That's impressive on stock valve springs.



I currently have a 600hp built tailshaft. The gtx3576 just lacks that mid to top that I want for the straights.



I am pretty set on the precision I think, what front and rear housing should be used any idea?



Its my daily but I go to the track once a month or so. Mainly track for racing on the straight with rolling start around 40km

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  • Donating Members
  • Member For: 19y 8m 6d
  • Gender: Male
  • Location: Hills District, NSW

I had the 4inch front housing rotormaster sell it with. Used my stock rear housing.

 

The other option is to look at some of the bigger bolt on low mount turbos with a smaller rear housing for quick spool. Lots of talk around about the precision 6466 with 0.82 rear and the borg warner efr range.

 

Yeah, the little gtx lacks mid to top even on the street.

 

Edit: play with the diff ratio?

 

Edited by sixman
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  • MattyP
  • Cruise Control
  • Member For: 11y 10m 24d
  • Gender: Male
  • Location: Central Coast

In b4 matt says his fondness of modifying standard turbos.

*Cough* make your own t04z coldsided billet wheeled 35r *cough*

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  • Donating Members
  • Member For: 13y 24d
  • Gender: Male
  • Location: Brisbane

Cheers sixman, some thinking to look into and think about.

I don't want to change diff gears as I dont want them shorter and if they are taller I will lose some of that pull

that's great Jet I'll be hitting you up for goodies :)

MattyP that's all I was originally going to do. The precision seems to meet all my needs where as the garrett gets close but cant meet at all areas

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  • 1 month later...
  • 4 weeks later...
  • Member
  • Member For: 10y 3m 22d

Why not a 6466? Great thread over on ford forums where they back to backed it to the 3576 baby turbo on 300rwkw vs the 6466 with 420 AND outspooling the stock fg turbo. Even at 450rwkw you'd still have room to move in the future if you want more power

 

Heres a cached link if you dont have a login for there

http://webcache.googleusercontent.com/search?q=cache:zhtv2NREqrAJ:fordforums.com.au/showthread.php%3Ft%3D11436193+&cd=4&hl=en&ct=clnk&gl=au

 

 

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