Borg Warner EFR Series Turbo's V 2.0

[The Mafia]

When you guys get a chance, watch this. He really knows what he is talking about. 

He also states that the Garret G series, is about 10-15% over rated. 
 

 

[Lithium]

8 minutes ago, Butters said:

Don't think the g35-1050 will get there ?   

I am pretty close(720rear) on 26psi with scope for more boost and rpm.  

Very happy with the repsonse on a 2.6 with vcam, on a 3.2 it would be amazing. 

800-850 is a pretty big step up from where you are, imho you'd need to go up an exhaust housing size (or two) to support the extra power - especially on a 600cc larger donk.   That's going to take a lot of steam out of the response, and while it's not going to be rubbish still... it imho will shift it outside of EFR league (well, further outside of).    So I wasn't saying it's rubbish or not a valid option, just when we're talking about an EFR8474 then imho it's definitely a step backwards.   That's because EVERYTHING is a step backwards, nothing against the G35.

 

 

Edited September 20, 2022 by Lithium

[Butters]

1 minute ago, Lithium said:

800-850 is a pretty big step up from where you are, imho you'd need to go up an exhaust housing size (or two) to support the extra power - especially on a 600cc larger donk.   That's going to take a lot of steam out of the response,

Agree on a bigger motor a bigger rear would be the go.     I do wish I had a built bottom end to throw the extra 10psi at it to see what it would do. 

 

3 minutes ago, Lithium said:

That's because EVERYTHING is a step backwards, nothing against the G35.

It's very tempting to test this out. You can get them in a vband flange turbine side which would make it near direct swap. 

[Lithium]

1 minute ago, Butters said:

It's very tempting to test this out. You can get them in a vband flange turbine side which would make it near direct swap. 

It wouldn't really be a valid test, my statements assume someone is running a native twin scroll housing.   Any observations I (and pretty much anyone else here) offer relating to EFRs assume twin scroll housings.  Any data for them and suggestions relating to them apply to the housings they come with.   

For it to be realistic it'd have to be a typical G35 setup and typical EFR setup, matched appropriately for the car they're going to be running on.

[bcozican]

58 minutes ago, Butters said:

Agree on a bigger motor a bigger rear would be the go.     I do wish I had a built bottom end to throw the extra 10psi at it to see what it would do. 

 

It's very tempting to test this out. You can get them in a vband flange turbine side which would make it near direct swap. 

this is what I'll be doing - G35 - 1050 with 1.01 v band rear with rb27 and 35 psi would think be around mid/high 800 hubs still think

[Mick_o]

Something else to consider with all the 9180 vs 8474 talk is that the 80mm turbine is the biggest culprit for flying out the back of the exhaust. The 74mm wheel is certainly the more "proven reliable" option. Even whilst over speeding.... But obviously if kept happy they are proven to be of OEM reliability. 

[The Mafia]

Just an update. I have the 8474 on the engine now (8374 previously)

It's about 100-200rpm laggier and makes an absolute sh$t tonne more power up top. The 8374 topped out at 650rwhp at 30psi. 

This 8474 is just f$c%ing dumb. At 26psi, it's making well and truly over 750rwhp and just keeps going. It doesn't fall over. 

RB28 with Vcam (264/272), 6boost manifold, 3.5inch exhaust, E85, Emtron KV8 etc etc 

[Shoota_77]

1 hour ago, The Mafia said:

Just an update. I have the 8474 on the engine now (8374 previously)

It's about 100-200rpm laggier and makes an absolute sh$t tonne more power up top. The 8374 topped out at 650rwhp at 30psi. 

This 8474 is just f$c%ing dumb. At 26psi, it's making well and truly over 750rwhp and just keeps going. It doesn't fall over. 

RB28 with Vcam (264/272), 6boost manifold, 3.5inch exhaust, E85, Emtron KV8 etc etc 

Well that's exciting news!  Can't wait to finally test mine out at some point!

Do you have a dyno chart?  Love to see her curves. 😍

[burn4005]

goddamit. now I've got to upgrade.

only question is Iron or Aluminium CHRA

[Shyboy]

That sounds exciting👍Any graph ? I should get mine back in few weeks 

[Predator1]

16 hours ago, burn4005 said:

goddamit. now I've got to upgrade.

only question is Iron or Aluminium CHRA

I also pondered the same when ordering, but couldnt be bothered, so went iron. Mines a 9180, and its not really heavy either. 

[The Mafia]

21 hours ago, burn4005 said:

goddamit. now I've got to upgrade.

only question is Iron or Aluminium CHRA

GCG said there is about 5kgs difference, and no difference in strength. I went the iron core and haven't had any issues. Wasn't heavy either. Iron would handle heat better though I would say?

[The Mafia]

21 hours ago, Shoota_77 said:

Well that's exciting news!  Can't wait to finally test mine out at some point!

Do you have a dyno chart?  Love to see her curves. 😍

I don't unfortunately, I'm just looking at the calculated HP / torque in the Emtron which is about 5-10hp within the dyno readings. 

Plus, I have ID1300cc injectors running at 4bar so about ~1600cc and they were hitting 95% duty on E85. That is a dead giveaway to output. 

The 8374 at 30psi was only at 82% duty.

[Lithium]

11 minutes ago, The Mafia said:

I don't unfortunately, I'm just looking at the calculated HP / torque in the Emtron which is about 5-10hp within the dyno readings. 

Plus, I have ID1300cc injectors running at 4bar so about ~1600cc and they were hitting 95% duty on E85. That is a dead giveaway to output. 

The 8374 at 30psi was only at 82% duty.

A screen shot of boost / rpm log showing where target boost is hit would probably be pretty meaningful, I've already posted dyno plots of these things pushing 800+hp to the hubs on a 3litre - the flow potential of them shouldn't really be in question at this stage, but how it comes on with an RB28 would be pretty good data to see.   There is always talk about how good these come up between gears etc, but not that much data for people and I can fully see why people develop an attitude that the enthusiasm for these turbos are just fanboism, as opposed to earned respect for being that good.

[Mick_o]

On 01/11/2022 at 3:31 PM, burn4005 said:

goddamit. now I've got to upgrade.

only question is Iron or Aluminium CHRA

Aluminium. It weighs 5kg without a turbine housing. Also Aluminium dissipates heat quicker so probably better on bearings etc. Also it won't rust and look old and Daggy like an iron core will eventually 

[Mick_o]

On 01/11/2022 at 7:21 PM, Shyboy said:

That sounds exciting👍Any graph ? I should get mine back in few weeks 

About time lol! How long ago was your car at my shop? 😆

Look forward to seeing it! 

I also wanna hear my exhaust! 😎

[Shyboy]

March 2021 lol , I’m sure would sound great and flow a lot better 👍

[Lithium]

I would never have bought or recommended an EFR9280 for this kind of power level (helped by the fact I've seen less impressive results from them), there is not much info on exactly how hard this one is being pushed, but I still feel like this result is worth knowing about if you hadn't already given GameOn aren't unheard of or anything.

EFR9280 on a VVTi 2JZGTE making 1130hp @ hubs with respectable spool is a solid result no matter how you cut it

https://fb.watch/gA5azNc8fg/

[RB335]

Put one on your car and you'll find out

[RB335]

Might try a 8474 again on my new engine with better flowing head, was a very snappy turbo