Gt3076R With .76 Rear

[jet2nv]

thanks for the chat simon

based on what simon have told me looks like im gonna grab a gt3076 with a .63 rear housing and settle for a 44mm external gate hopefully see a responsive 280-300rwkw on 18psi or so

[Lithium]

No no no, don't go the .63 - especially for that power level. Are you going with an aftermarket exhaust manifold as well?

[kwickr33]

My SS2 made 290rwkws on 18psi and 307rwkws on 21psi, full boost around 3600rpms. very responsive and linear on road.

Price for a CNC billet turbo custom made for OEM bolton internally gated at given level of performance it is pretty cheap. if you want a bolton turbo that makes the power then that is probably the best turbo to go for.

Other wise there are plenty of options available for ext gated high mount setups, check the dynosection for their references.

[jet2nv]

simon-s14 think thats his user name said a few guys including him made 300rwkw with a stock manifold external gate low mount gt3076 with a .63 rear

hey kwickr33 whats the ss2 like driving around town boost like is it quick spooling compared to a garrett and whats the transition of boost ie when driving off the lights in 1st then into 2nd and so on

the price stao whants for his ss2 is what i can get a gt3076 and modified manifld with external gate for give or take $200-$300

[jet2nv]

95 model R33 GTST with 165,000KM stock motor

High flowed 650cc injectors

PWR Front mounted cooler

Xforce turbo back exhaust

Manual boost controller

44mm HKS external gate counted to turbine housing

Hypergear SS-2 stockie bolton turbo

Custom made 3inch intake pipe

PFC and Z32 AFM

Pump 98 fuel. Car made 307rwkws on 22psi, 296rwkws on 20psi.

isnt this ur results kwickr33

[Simon-S14]

No no no, don't go the .63 - especially for that power level. Are you going with an aftermarket exhaust manifold as well?

i can point out 3 cars here all of which run same turbo and set up. well mines a little more crazy running e85 and other bolt ons. but all rb25's are making over 300 rwkw with a .63 rear and none show any taper off from the top end. mine made 365 rwkw in fact.

[Lithium]

simon-s14 think thats his user name said a few guys including him made 300rwkw with a stock manifold external gate low mount gt3076 with a .63 rear

Technically possible, but imho its a bit rough - a lot of heat etc involved with that tight a housing - most of the results for that combo I have seen have involved ethanol blends or water/meth injection. I started off with a .63a/r external wastegate GT3076R and swapped it out for a .82a/r internal and never looked back. Well, sortof anyway.

The difference in drive wasn't much different aside from below 3000rpm, either. If I were doing the whole thing again I'd use an FP GT3076R HTA with external gate and 6boost style manifold

[jet2nv]

yeah i want to stay low mount i just sold my rb30det engine along with my highmount and gt35 setup

so saying that im not goin to complain with a responsive 280-290 if i can stay low mount

[Simon-S14]

decent manifold + .63 ex gate housing and 44mm or larger ex gate = loads of flow really. EGT's dont get any hotter then .8 at same power levels.

i know i rather a 300 rwkw .6 rear on 18-20 psi which comes on earlier and has loads more midrange torque for the street then compared to a 300 rwkw .8 rear on 16-18 psi that is laggier.

and yes i have had plenty of exp with both housings and set ups.

[Lithium]

I guess with a decent manifold it would make things easier. There is no reason for more midrange torque on the .63 unless the tuning was off with the .82, have any EGT log comparisons etc to show? Again, I've owned both and drove both for thousands of km and I never missed the .63. Everyone is going to have different views, but its worth the OP knowing that its not clear cut. I never had anyone go in or drive my car that considered it laggy, I actually had a bit of a queue of people keen to buy my turbo when word went around I was going to sell it off due to how nice the combo works as a road etc car.

[jet2nv]

so is this power realistic 280-290/300rwkw with a stock manifold either internal or external either the .63 external or the .82 internal or even external .82 car will be tuned at status

[Lithium]

Ask the tuner, fair chance he has tried it

[jet2nv]

yeah i kinda dont want to bother him with all these questions but i guess i might just bite the bullet and ask

[Lithium]

OK. Fwiw, I'd say 270-280kw is a good target area for .63 - 300kw is well proven with .82

[jet2nv]

with the.82 is that internal or external is there much difference between .63 and .82 on the road

[GTScotT]

Are you sure its .76?? Most likely to be a .73AR internal wastegate Skyline housing from AVO turboworld

http://www.avoturbo....ust_housing.pdf

Rated to between 280-300rwkw at around 20-22psi on 98Ron fuel.

Nothing wrong with this exhaust housing whatsoever, been running it for a number of years. Spools up nicely, puts down the power well.

"very shit" my arse

I'm not picking on you... But remind us how much power yours makes? Meeting its rating?

Actually you are more or less hitting the high average as it is. I dont recall seeing anyone with 300kw results out of one of those housings. Sorry to say, happy to be proven wrong though.

[R31Nismoid]

No no no, don't go the .63 - especially for that power level. Are you going with an aftermarket exhaust manifold as well?

+1

jet2nv - you are in Vic.

Why not just PM users like joeyjoejoejuniorshabadoo and go in their car and see for yourself?

[jet2nv]

Yeah I might wat mods does he have again I think that's a really good idea

[R31Nismoid]

Read the dyno thread, there are other users in VIC as well.

[jet2nv]

2835 from memory around 280rwkw or something