bcty

So heres where I stand..

Full 3" exhaust.. no resristion
Ice cold Intake + 3" TID
SAFC 2
Flywheel
Strip Clutch
Wires
Supra TT Pump

I still have the stock injectors but new ones on the way..
I am creeping to 10-12psi sometimes.. I still need to port the wastegate some more.. What can I do to get some more power or am I looking at a standalone?

I am going to be getting a T3/04 biggest out there..

What do you guys think 4 680cc's injectors would put me? I think Im going 800cc and 680cc.. So am I there where I need to go standalone? and how can I limit my Boost to makybe a solid 10psi or sumpthing.. I had to let a Z06 go and beat me tonight cuz of overboosting. anyways hope you guys and help.. and help me decide my nexst few steps!

Thanks
Tyler

jacobcartmill

iTrader: (6)

hey man
if you're going to get a bigger turbo, i wouldnt suggest a T3/T4... a T3 hotside is smaller than the hotside on your STOCK turbo, if not smaller they are very close in size.
you may as well just get a T04 hybrid (uses the stock series5 turbo hotside, T04 compressor side) or a full T04 if you're going to be spending the money on a t3/t4 and manifold. just keep your boost under control.

do you have to get a new manifold for the t3/t04? if so i'd just go ahead and get a full T04. if not, just get a t04 hybrid. it'll make just as much if not more power than a t3/t4 and it probably costs less.


edit: i just read the end of your post.
i'd just go ahead and get 4 720's if you're gonna be using an SAFC to tune things. you cant change the primary/secondary split with a safc so you'll need all four bigger injectors or you'll go lean right before the split (arond 3500-3800rpms or so) you could get away with 4x680's, but hwy not just get the 720's if you're buying all 4...
also, yes i'd go standalone (i'd use microtech or haltech)but you can get away with the safc if you do things correctly.

bcty

thanks.. for the tips.. I will be useing the S5 stock turbo and manafold probally.. I want to see if I can fit a T04 exhaust shide in the stock turbo.. I would like to keep the stock turbo size and stuff due to the fact its oil cooled and water cooled.. These turbos on a few cars around here make gobs of power they are custom made from your old turbo over in Vancouver.. So 4 720's and I wouldnt have to worry about the split to much? just dial down the fuel and tune with wideband accordingly? And for a standalone I will get a microtech just wondering if that has to be my enxt route.. thanks so far!

jacobcartmill

iTrader: (6)

yeah 4 720's will suit you fine for a t04 hybrid (the hybrid is definitely what i'd buy in your situation) and an safc.

a standalone would definitely need to be your next upgrade after that. like i said, you can use an safc if you get it tuned properly (you shouldnt have to worry about the split with 4 720's) but its ALWAYS a better idea to get a standalone; they can do so much more. you should be ok with an safc though.

dont get a t3/t4, they're for 4 cylinder's that cant spool a full t04

bcty

thanks man!

NZConvertible

What's your power target? Four 680's are good for ~360hp, four 720's ~385hp. Equal sized injectors are definitely better when using an S-AFC, but a Haltech or MicroTech can do staged injection properly, so mismatched primary and secondary injectors are not a problem.
Improving wastegate flow is the only way to stop overboost without also losing power. If you're getting a T04 you'll need an external wastegate anyway. If you're keeping the stock exhaust housing then you need to replace the wastegate flap with a bigger one and then port the wastegate out to suit the new flap. Also consider a downpipe that seperates turbine and wastegate flows into two seperate pipes that merge later. This helps both flow better.

bcty

thanks for the tips! I think i might just try the T3/04 for a bit.. see where that puts me.. if 4 680's are good for 360hp i think that would be fine with me.. what duty cycle is that on the injectors? Ill try that exhaust valve thing in the wastegate and see if that helps! thanks!

NZConvertible

Those figures are calculated with an 80% duty cycle.

BLUE TII

iTrader: (9)

My stock hybrid breaks traction in 1st @4,000 rpm, 2nd @5,000 rpm and 3rd @5,500 rpm (3rd only when the road is slightly curved, cold or damp).

On Yok. A520 225/50 on 8" rim.

Just to let you know what stock hybrid is cabable of. Don't waste money getting a T3/T4 to fit up.

Search for my username when search is working and you can see the "most modified stock turbo" or somesuch..

adamlewis

Just wanted to say that you wouldnt have taken the Z06 anyways.

BLUE TII

iTrader: (9)

Taken a Z06? I would w/ my set-up.

That is, I would gladly take a Z06 over my car.

adamlewis

You actually might have had a chance..

But ol buddy that first posted wouldnt have.




EDIT: Do you have a link to all the pictures of your car?

bcty

i wouldnt have won in the end but is was a close race till i had to stop in 5th gear due to over boosting..

anyone try running an external wastegate on our stock exhaust manafold? or do you think that an exhaust valve from something and a ported wo match wastegate hole will be good enough? thanks!