Hypergear Turbochargers and High flow Services Development thread

[Dose Pipe Sutututu]

SS2 again but slightly different with ceramic ball bearing

[t_revz]

Nice! How hard were you pushing the last one?

My ss2 only got tuned to 18psi due to faults/leaks etc that I've mostly fixed. pulled some timing and got it up to 25 last week, almost ready for retune

[iruvyouskyrine]

I'll be interested to see how yours goes jonny. Was thinking about sending my mid 2013 SS2 in for a freshen up and possibly BB cartridge.

[Dose Pipe Sutututu]

Pushed the shit out of it, tried screwing 26psi through it but didn't make a single kW more. Turbo rear was glowing as bright as the sun haha. It did make more mid range torque but pointless as it bled down to 22psi up top.

Ended up only making 327kW pulled out some timing and it mad 325kW (mainline). Results did vary from another dyno I which read 340kW (dyno dynamic).

I think Tao uses a different rear housing now, because he warned me my turbo won't line up to my dump pipe now.

[t_revz]

Was that 98 or ethanol?

I'm on 98 + wmi

[t_revz]

Dp

[Dose Pipe Sutututu]

E85, but at the time I was tuning it was showing E72 (I run flex, car many runs 98RON).. I doubt a 10% different in ethanol would make that much of a difference in power.

[t_revz]

I would guess 98+WMI would run a touch hotter than E, might end up around 23 odd psi then

[t_revz]

I would guess 98+WMI would run a touch hotter than E, might end up around 23 odd psi then

[Dose Pipe Sutututu]

they say it's on par, you would net the same results with E85 vs WMI 50/50 mix...

that was according to Yauvz's engineering mate (which is also on this forum)..

[Kinks]

Yes it is more responsive. and can be built in to an OP6 rear housing.

Is it possible to get similar response out of an OP6 housing? Or is the 21U more suited?

10psi by 3250RPM and full boost by 3500RPM looks pretty nice (from the 21U). The biggest issue with all the OP6 high flow charts I've seen is boost comes on at 4000RPM which is far too late in a street car...

Specifically my question is can the OP6 housing produce "enough" power while retaining factory-like response. The standard OP6 boost response on my GTT is fine. A high flow coming in at 4000RPM would not be.

By "enough" power I mean a nice fat curve across the rev band. I care more about the total area under the curve than the peak value.

[Missileman]

I'm sure a BW EFR turbo could be at full boost by 3500 their only a bit more than a hiflow.

Edited March 18, 2016 by Missileman

[Dose Pipe Sutututu]

I'm sure a BW EFR turbo could be at full boost by 3500 their only a bit more than a hiflow.

unfortunately cost as much as our GTS-t rust buckets.

[Missileman]

Oh, so they are more than 2K?

[Dose Pipe Sutututu]

now that is in USD ex delivery and import taxes ra ra ra

http://www.full-race.com/store/turbos/borgwarner-efr/borgwarner-efr-7670-turbo.html

I would LOOVVEEE that

[Missileman]

They have some with compressor covers that have a 90 deg bend cast into them too.

So $3K for the best turbo on the planet and $800 for a hiflow.

Edited March 18, 2016 by Missileman

[BoostdR]

Yeah BW EFR are insane but with the current exchange rate are very expensive

[Ben C34]

So for heaps more money you can buy something better?

Wow.

What else does that apply to?

[Dose Pipe Sutututu]

C63 AMG or E63 AMG both are nom nom nom nom lol

Anyhow still waiting for my turbo, I has a sads now

[BoostdR]

Oh and Borg Warners are not a bolt on so take your $3k and add on a new manifold, dump pipe, intake and lines.