k31th less WHY; more WOT Site Developer 29,051 Member For: 16y 8m 12d Gender: Male Location: Melbourne Posted 01/05/16 08:19 AM Share Posted 01/05/16 08:19 AM He said he had oil pump gears, and it'd be a miracle to make the power he does without valve springs haha. Link to comment Share on other sites More sharing options...
Future Donating Members 116 Member For: 13y 9m 18d Gender: Male Location: Brisbane Posted 01/05/16 08:23 AM Author Share Posted 01/05/16 08:23 AM 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? Link to comment Share on other sites More sharing options...
sixman Donating Members 600 Member For: 20y 5m Gender: Male Location: Hills District, NSW Posted 01/05/16 09:30 AM Share Posted 01/05/16 09:30 AM 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 Link to comment Share on other sites More sharing options...
Future Donating Members 116 Member For: 13y 9m 18d Gender: Male Location: Brisbane Posted 01/05/16 10:10 AM Author Share Posted 01/05/16 10:10 AM 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 Link to comment Share on other sites More sharing options...
sixman Donating Members 600 Member For: 20y 5m Gender: Male Location: Hills District, NSW Posted 01/05/16 11:26 AM Share Posted 01/05/16 11:26 AM (edited) 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 01/05/16 11:29 AM by sixman Link to comment Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 16y 6m 21d Gender: Male Location: Adelaide Posted 01/05/16 11:45 AM Share Posted 01/05/16 11:45 AM I can help you out with Genuine Precision turbo's also bud Link to comment Share on other sites More sharing options...
MattyP MattyP Cruise Control 6,317 Member For: 12y 7m 18d Gender: Male Location: Central Coast Posted 01/05/16 01:16 PM Share Posted 01/05/16 01:16 PM In b4 matt says his fondness of modifying standard turbos. *Cough* make your own t04z coldsided billet wheeled 35r *cough* Link to comment Share on other sites More sharing options...
Future Donating Members 116 Member For: 13y 9m 18d Gender: Male Location: Brisbane Posted 01/05/16 01:42 PM Author Share Posted 01/05/16 01:42 PM 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 Link to comment Share on other sites More sharing options...
MattyP MattyP Cruise Control 6,317 Member For: 12y 7m 18d Gender: Male Location: Central Coast Posted 05/06/16 12:25 PM Share Posted 05/06/16 12:25 PM Price is the bomb though for the hybrid option Link to comment Share on other sites More sharing options...
luke187 Member 297 Member For: 11y 15d Posted 30/06/16 06:30 AM Share Posted 30/06/16 06:30 AM 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 Link to comment Share on other sites More sharing options...
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