Silvia Club of NSW

Why drive when you can drift?
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PostPosted: Thu Apr 10, 2008 4:55 pm 
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Twin T78
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ah ok then.. i went nismo 740cc's for that reason. didn't want to be limited by 555cc incase i change turbo.

I'd love to see your dyno graph with the same cams but different turbo to mine. I'll scan mine tonight


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PostPosted: Thu Apr 10, 2008 5:29 pm 
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T66 Hybrid
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i will upload mine aswell. you can really see a difference between my last setup to this one.

i wasn't planning on doing anything else to the car so i got the 555cc i tohugh the 740's might be overkill... how wrong i was. im kicking my self for not getting them now consiering they were only like i think $50 more.
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Last edited by marshy on Sun Mar 20, 2011 10:06 pm, edited 1 time in total.

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PostPosted: Thu Apr 10, 2008 6:51 pm 
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T28
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Nismo 555cc injectors maxing at 220rwkw? are you sure? how much fuel pressure are you running?


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PostPosted: Thu Apr 10, 2008 7:45 pm 
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Quad T66
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marshy wrote:
consiering they were only like i think $50 more.

less then that :P about $5 more each


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PostPosted: Thu Apr 10, 2008 9:47 pm 
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T66 Hybrid
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here is the dyno reading, teh red one was the run before the new turbo and the blue is with the new turbo.

Image
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Last edited by marshy on Sun Mar 20, 2011 10:07 pm, edited 1 time in total.

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PostPosted: Fri Apr 11, 2008 12:58 am 
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T51 Hybrid
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Nice results, looks like it spools up well with plenty of midrange - pity about the injectors since your AF ratio is as lean as you'd want to go already. Sux2bu. Well you can always use a pressure reg like the Nismo one to bump the base pressure a bit for some more flow if you dont want to swap injectors.


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PostPosted: Fri Apr 11, 2008 8:43 am 
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T66 Hybrid
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yeah i might just do that, ill have to look into that a little more. See if its actually feasible or whether i should just go the bigger injectors


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PostPosted: Fri Apr 11, 2008 12:11 pm 
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Twin T78
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very nice.. i didnt have a chance last night to scan mine but i'll do it over the weekend. seems the cams + turbo combo work well together.

how does it feel on lower boost?


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PostPosted: Fri Apr 11, 2008 1:52 pm 
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T66 Hybrid
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thanks, i think the combo is great and it has alot more potential, just need to do more on the fuel system and i also need a better actuator as the std one isnt copign to well with andthing over 17-18 psi.

To be honest with you i havent really had it on low boost ill tell you on the weekend when i drive it normally again :lol:


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PostPosted: Fri Apr 11, 2008 2:28 pm 
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Quad T66
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marshy wrote:
i also need a better actuator as the std one isnt copign to well with andthing over 17-18 psi.

whats the problem?


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PostPosted: Fri Apr 11, 2008 3:06 pm 
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T66 Hybrid
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unigroup were explaining it to me, it had something to do with the waste gate pressuee only being 8 pis rather then your normal say 10 psi, so i think maybe the rod not being able to extend anymore or something like that. Ill have to ask them again when i see them on saturday..
It will hit about 20 psi but then come straight down


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PostPosted: Fri Apr 11, 2008 3:31 pm 
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T28 Hybrid
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nice results, should be more responsive than my car.

i've got 555cc injectors
stock cams
stock afm
pfc
gt3071 t2, with 2.75 intake.

and it pulled 240kw, (100%injectors, and 100%afm)

will see if it does it agian tomorrow night.

look for the noisy red s15.

forgot to mention, i to had issues with boost creep. got to 14psi(3500rpm) fine and then climbed to 19-20psi(5000-up rpm), simple solution, welded the IW shut and welded an external gate to the stock manifold. problem fixed (not really, boost still goes up abit in the hi-revs. even with a blitz dual solinoid boost controller)


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PostPosted: Fri Apr 11, 2008 3:44 pm 
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Twin T78
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240rwkw with stock AFM?? wow....


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PostPosted: Fri Apr 11, 2008 3:56 pm 
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TO4
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marshy wrote:
unigroup were explaining it to me, it had something to do with the waste gate pressuee only being 8 pis rather then your normal say 10 psi, so i think maybe the rod not being able to extend anymore or something like that. Ill have to ask them again when i see them on saturday..
It will hit about 20 psi but then come straight down


Just bodgy it up by packing washers between the actuator and the mount. Worked pretty well on my one. Actuator might shit itself eventually like that though.

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PostPosted: Fri Apr 11, 2008 3:56 pm 
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T66 Hybrid
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i was hoping for the 235 mark ill get there soon hopefully maybe 240kw if im lucky .
240 on a std afm thats a bit of an effort. i had to go Z32 to get what i wanted.


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