[Closed] Borg Warner Efr Series Turbos

[Piggaz]

R32, 6 boost high mount, 8374 IWG.

[GTR_JOEY]

6 hours ago, bigmikespec said:

For the record, compressor RPM and pressure are not related... at all. 

Was looking for a loose estimation on how hard a 26 would spin it In relation to boost.

but yea thanks 

[sneakey pete]

4 hours ago, Piggaz said:

R32, 6 boost high mount, 8374 IWG.

And the aircon used?

Genuinely curious, out of interest, for the sake of anyone who may wonder themselves in the future. Can't see the factory aircon line where they should be running under the compressor housing though, I think, but i think i see aircon lines wrapped in foil up at the firewall?

[Piggaz]

19 minutes ago, sneakey pete said:

And the aircon used?

Genuinely curious, out of interest, for the sake of anyone who may wonder themselves in the future. Can't see the factory aircon line where they should be running under the compressor housing though, I think, but i think i see aircon lines wrapped in foil up at the firewall?

I believe so. Waiting on a call back from the owner of the car. 

Why don't you ring 6 boob and ask? Bugger making a manifold when you don't have to. FWIW, I've never heard of the issue you're talking about. R32/full race with the PS pump yeah, not AC with a 6 boost.

[sneakey pete]

If that's the case that's good.
I had been onto Kyle via email and did ask him if there were fitment issues re aircon at which point I didn't receive a reply, however by that stage i'd got onto my mate about doing it, and he was competitive on price and willing to have a got at the low mount, so I didn't bother following up more on the 6boost. I was going to far to say it wont fit, i've read too much into the fact I didn't get a reply when I specifically asked about that. Either way the car is in the fab shed with a set of flanges and elbows so we'll see what comes out

[HarrisRacing]

I have 6 boost on 8374 iwg .92 efr with r32 AC on my car right now. I did make a new AC line because I had cut mine previously trying to get it to fit with the RAW brokerage manifold. The dampener in line would have been close to the bottom of the manifold for sure on the stock line. I cut the ends and just had my shop sweat 2' of line in-between the end fittings and covered with heat wrap. Works perfect

 

[JH32]

I can't imagine you'd have an issue with 6boost and air con. I'm using a 6boost, air con lines were all good. 

[HarrisRacing]

Here are some pictures I took when I was fitting mine up. You'll see where I had cut the AC line from before.

 

 

[mr skidz]

Have you thought about heat rapping that manifold?

[GTR_JOEY]

That turbo sits high mate, any bonnet clearing issues?

[sneakey pete]

Looks like its ceramic coated already.
 

From the pictures that Harris racing has posted i'm pretty sure it would fit, though stock damper would be bloody close and probably melt

[GTR_JOEY]

There would be benefit in heat wrapping a coated manifold. Not sure it 6 boost will warrent it though I know full-race do

[GTR_JOEY]

Edit

double post 

[GTR_JOEY]

edit

triple post

[Piggaz]

6 boob don't warrant heat wrapping. 

[mr skidz]

There's some length to that manifold I'd want to retain as much heat is possible.

[HarrisRacing]

Warranty issues is why no heat wrap is present. Thought about doing it anyway but it seems to work well enough.

Zero hood clearance issues (that was the problem with the RAW). Remember the 9180 is the same size as the 8374...so there's room enough for a 1,000HP turbo on here.

[HarrisRacing]

Ran some more boost threshold tests: Temp = 91 F, 70% humidity.

1) Third gear from 2k rpms. Graph attached - NOTE that my closed loop boost control is starting to compensate at 3390 rpms (ie starting to give supply pressure to the wastegate).

• 10 psi @ 3430 rpms
• 14 psi @ 3712 rpms
• 16.5 psi @ 3909 rpms

2) 5th gear from 2k rpms. Graph attached.

• 10 psi @ 3059 rpms
• 14 psi @ 3200 rpms
• 16.5 psi @ 3278 rpms
• 18.1 psi @ 3329 rpms

So this goes to show that the EFR will spool soon when loaded for long amounts of time, but that it still has a good bit of inertia with it to get it to respond on extreme low end. As stated previously with my setup, the gear greatly affects threshold. Granted, it's still hyper responsive and the low boost threshold in 5th is nice for passing on the highways because I'm still at those rpms while cruising so there is no need for downshifting.

[joe89]

HarrisRacing

Amazing spool

Its 2.75l? Stock head with cams? And on fuel pump?

Edited August 3, 2016 by joe89

[HarrisRacing]

HarrisRacing

Amazing spool

Its 2.75l? Stock head with cams? And on fuel pump?

BC 79mm stroker crank. Stock 86mm bores. Forged pistons stock compression. Squish pads mostly removed. Tomei poncam A's at 0 and 0 cam settings. 6 boost manifold divided T4 internal wastegate 8374 .92 housing hypertune V2 intake manifold and yes 93 octane fuel in the US