GTX30

[SHaDoWLanDZ]

Well..

After searching this forum and other forums about putting a GTX30 (76,..) on a YB...

I still don't know what to do with my engine..

GT3076 or GTX3076 on an AR 0.82 with twinscroll manifold..
I'm looking for +500bhp ofcourse..

With good headporting and cams the GTX series on 1.7bar max (25psi) should be good and don't surge.. but lot's of peeps here tell a different story..

Pro's, con's and experiences?

CHeers!

[Sonic Boom]

I've got a GTX3076 with 0.82 housing on and it made 590bhp and 578 ft/lb of torque but ended changing to a 1.06 housing to stop the surge.
If you're going to buy a turbo from scratch then you really need to be looking at the BW EFR turbos, the 7670 EFR is pretty much the same size class as a GTX3076.
It's what i'll be getting soon as funds allow.
Rich

[Cossie col]

BW EFR as said mate is what you really want of funds will allow

[SHaDoWLanDZ]

Wow just did a read up on the EFR yes... great turbo..

They even compare it to GTX35... same power but quicker response

[SHaDoWLanDZ]

I've got a GTX3076 with 0.82 housing on and it made 590bhp and 578 ft/lb of torque but ended changing to a 1.06 housing to stop the surge.
If you're going to buy a turbo from scratch then you really need to be looking at the BW EFR turbos, the 7670 EFR is pretty much the same size class as a GTX3076.
It's what i'll be getting soon as funds allow.
Rich

Wow, even with bigger cams and inlet ports?

590bhp

How's the lag on the 1.06 housing?

[cossiedavid]

I've got a GTX3076 with 0.82 housing on and it made 590bhp and 578 ft/lb of torque but ended changing to a 1.06 housing to stop the surge.
If you're going to buy a turbo from scratch then you really need to be looking at the BW EFR turbos, the 7670 EFR is pretty much the same size class as a GTX3076.
It's what i'll be getting soon as funds allow.
Rich

No chance

[SHaDoWLanDZ]

No chance

More explanaition Dave

[Sonic Boom]

No chance

Awaits apology



Rich

[SHaDoWLanDZ]

Dear lord.. that must be one of the fastest cossies there... GREAT!!!!!

More specs mate? Did any quarter miles or something?

[Sonic Boom]

This was the engine spec when it made that power (although it has changed abit recently):

CGI 200 Twin feed Ex-WRC Block
10 Long Studs
Wet Nikasil Liners
Cosworth Racing Short Skirt Pistons 7.9:1 Compression Ratio
Cosworth WRC Long Rods
Mountune/Cosworth Crank
Oil Spray Jets
High Pressure and Flow Oil Pump
Wide Wing Sump with a Blue Sprint Sump Baffle
Big Ported Head 27mm Inlet 27mm Exhaust
Danny @ BlueSprint Super High lift Inlet cam
Standard Exhaust Cam
Hart Inlet Manifold
83lb Siemens Injectors
Tubular Manifold with 52mm primaries
GTX3076r Turbo with Tial .82 SS V-Band Exhaust Housing
100mm Airtec Intercooler


I did a 1/4 in 11.9 @ 128mph, not the easist thing to get off the line thou


There's plenty of faster Cossie than mine out there.


Rich

[SHaDoWLanDZ]

But still

[Simon T]

Makes my 240 look really inadequate!

[cossiedavid]

Apparantly it will where was it dynoed to rich 83s must be on there limit

[Sonic Boom]

Apparantly it will where was it dynoed to rich 83s must be on there limit

Mita Performance mate, i'd imagine the 83lb's probably are maxxed out.
I'm on aftermarket now and 1100cc ASNU's so we'll see what it makes later this week.
Rich

[addemannen]

Gtx is very good.turbo
I had gtx3076 twinscroll with ar 82 full boost 2,3 bar at 3500 rpm
Another one here in sweden made 500 whp with twinscroll ar 78
And one have 610 bhp with ar 1.06

But now im going ty try efr 7670