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04' mk2 BA ute 554rwkw


DC-Auto

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  • Member For: 6y 10m 27d
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Hey, hey, hey that's a whole 117kw at the fly......

 

6 hours ago, HI PSI said:

So, what horespower and torque increases would you expect (Given 850kw with a stock head) with a ported head?

Hmm, who knows at that power level geez, no expert ballpark -10psi for same power???. I know who is an expert though for turbo, blown, NA head work not just v8's either is Tony Knight of Knights engines SA. If whoever is contemplating this could get hold of him I think he would be interested. He isn't taking work on atm but you might be able to twist his arm, at least get some reliable info out of him, honest guy. The young guru in head and engine work for any engine.

Edited by adams355
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  • Member For: 8y 3m 16d
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10psi less, but not same power.. atleast 10% more power, made 606@26psi through a t56, now making 609@17psi through a th400 with 3500rpm stall

 

it cost a sh*tload to do the head and cams, im not regretting it. basic head reco which blew out to ported and polished head, o/s valves, springs, ti retainers $4.5k, match port inlet and exhaust manifolds $400, then cams to make the most of the head $1200, adj cam gears $550, timing chain etc $600, factory ecu wont run it elite 2500 wired & tuned $8250, cams too big for brakes CVR vacuum pump $500............ errr...starting to regret it now.

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11 hours ago, DC-Auto said:

10psi less, but not same power.. atleast 10% more power, made 606@26psi through a t56, now making 609@17psi through a th400 with 3500rpm stall

 

it cost a sh*tload to do the head and cams, im not regretting it. basic head reco which blew out to ported and polished head, o/s valves, springs, ti retainers $4.5k, match port inlet and exhaust manifolds $400, then cams to make the most of the head $1200, adj cam gears $550, timing chain etc $600, factory ecu wont run it elite 2500 wired & tuned $8250, cams too big for brakes CVR vacuum pump $500............ errr...starting to regret it now.

 

Yep, easy 10% in the trans and stall. How does it drive compared? What is peak torque and rpm (if you wish to say). Enjoy its only money :)

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On 21/03/2018 at 6:40 AM, tazzanz said:

Yes its scary how quickly things blow out, that's why I have stopped keeping my receipts lol. How big are the cams?

288° duration, 0.508" lift, 112-114 lsa

 

On 21/03/2018 at 10:29 AM, adams355 said:

Yep, easy 10% in the trans and stall. How does it drive compared? What is peak torque and rpm (if you wish to say). Enjoy its only money :)

peak torque 1350nm is at 3400rpm, and 7000rpm redline

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  • 3 months later...
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not a great deal has been happening, trying to enjoy the car a little. been on and off the dyno a handful of times. made 660rwhp on 19psi with E85 before we hit the wall with the fuel pumps and wastegate. Fitted a new turbosmart 45mm gate w/ 14psi spring and a Magnafuel pro tuner 750 pump, and back on the dyno making 716rwhp @ 22psi on E85, then the alternator sh*t itself....

with the new alternator fitted, we turned it up to 27psi and the conditions weren't ideal on the night, strapped it down harder and harder but we couldnt get it past 720rwhp without breaking into wheel spin. the turbo is at its end of it's efficiency,  we are seeing 52°c inlet temperatures at 30psi, with the gains we have seen, we are guesstimating at the moment at a touch over 800rwhp...

we now have a 2step launch control program going through the haltech and all wired in with the trans brake, and we have pretty much perfected everything with the car (fixed minor trans leak, minor rear main leak, etc etc). picked up another set of rear Weld Draglites wheels with better backspacing (15x8 6.5" BS) running a 275/65r15 radial pro. New 1500hp rated tailshaft will go in next week, stuff around with roll racing to shake it all down, then see if we can reel off a 6.0 / 6.1 over the 8th mile (can get kicked out this way, but unlikely)... im still undecided to put a cage in, it is a $4000 expense, eliminates me from a few events a queensland raceway, and makes it a pain in the ass to get it through queensland transport (no exo-cage is permitted, in regards to the rear supports).........36417801_458112977945685_822262587499479 roll racing with 660rwhp https://youtu.be/hW-2ld4jozg36411822_458107071279609_117522554035791

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  • 4 weeks later...
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well, all good things come to an ends, and in this case, my 11yr old turbocharger spooled its last spool... fluttered its last flutter.. :verysad1:

37635095_10156441383443965_694689159732937699767_10156441383598965_8832150303450

 

this was a result of my turbosmart blow off valve failing. the compressor flutter was getting louder and louder, and the nut off the compressor wheel tried to take a walk. happened 20mtrs from work which prevented catastrophic damage. 

so a new turbosmart raceport blow off valve is going on, and decided on a half decent sized turbo. 

the new gen2 7275 cea precision should get me over 900hp at the tyre, but more to the point, 800rwhp on less boost. she's been ordered, arrives early next week

 

 

maxresdefault.jpg

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