High RPM, Big Turbos

[luke 3mps]

Wondering if anyone here are running big turbos ie 2871,2876,3071,3076,3082 etc, are running there cars above the 7200rpm mark and have hit problems? 'other than the blown engine theory', so im asking the ones that have rebuilt there engines or know of others?

Mine will have forged rods, forged pistons, racing balance, race bearings,eibach valve springs, DCR VVT, cpe fuel pump, garrett 3076.

after looking at the cam profiles and had a techy look at the cams in our car is good for 9000rpm+ so this is safe.

I will be running to 7000-75000rpm, have i covered all bases or have i missed something?

OK... 8000rpm is a no go on the money im spending, if i throw another $10000+(est) yes it can be done. BUT im not! so with the work im getting done and money im paying prob 7000-7500rpm safe.

[BradstaMS]

Big question, why? :S

[luke 3mps]

Big question, why? :S

Why not? have to rebuild it anyway.. i asked for advice, if i missed anything not judgement

[BradstaMS]

Nah wasnt having a dig mate, alls good

[Oldhead]

Like your style , money where mouth is. Clutch and brakes?????? Going where no other Ausie MPS has been !

[Scaredycrow]

Big question, why? :S

Taller / longer power band.. Seems obvious

Do some volumetric calculations Luke. Make sure your intake / Exhaust can flow enough gas fast enough at 8000 It's probably fine, but there's a limit somewhere....

Injector duty cycles and injector volumes at 8000 could be interesting to check up on.

Good luck mate

[SarcasticOne]

only thing im thinking you might be missing is torque down low... i thought 3076's struggle to make power under about 3500-4000 rpm in a 3 (and probably a 6 as well)...
other thing is that the tacho only goes to 8000rpm...

[Reedy]

Gonna end in a fireball.

You heard it here first.

[SarcasticOne]

Gonna end in a fireball.

You heard it here first.

gearbox could have some fun...

[Jeev]

Port, polish, reseat and use oversized valves? What are you planning on using for a gasket?