[joe89]

I get 6266 DBB .84 divided
It seems to have full boost near 4000 rpm ( user Natbrat300 have it and it's very impressive )

 

[jasaircraft]

No, not on this engine.
What I can say though is comparing my graph to my old graph with the -5s is night and day to response, the -5s have a typical boost response, where as the EFR does not

you mean the -5s where more resonsive than your efr? but does the efr flow a similar power rating?

 

[Nismostune]

Joe if you can get a turbonetics much cheaper why not do that then? I'm sure the difference in cost is not that noticeable in performance. But in a perfect world you'd be asking for the more expensive turbos (based on wants). I run EFR turbos but am not sold on the fact that they're better. Still today there are no many straight up comparisons or much actual results that people can use against say Honeywell turbos

 

[Sub Boy]

you mean the -5s where more resonsive than your efr? but does the efr flow a similar power rating?

No, other way round, the -5s were sluggish in comparison

 

[jasaircraft]

wow! single it is then! although efrs are quite expensive... just seen turbonetics on ebay are the cheapest being new...

 

[Dan ep3 turbo]

No, other way round, the -5s were sluggish in comparison

Were the -5 on a 2.6 though?

 

[black bnr32]

any single with a 62-64mm compressor inducer

 

[Calibrat]

i purchased the EFR 9180 on my stroked rb30 cost me 1500+ vat
so with the fitting kit and delivery was just under 2k.

cant wait to try it with the v-cam setup hopefully great responce

 

[Dan ep3 turbo]

i purchased the EFR 9180 on my stroked rb30 cost me 1500+ vat
so with the fitting kit and delivery was just under 2k.

cant wait to try it with the v-cam setup hopefully great responce

How much power you aiming for mate?

 

[Calibrat]

around 700 torque
that would be great for now

 

[Dan ep3 turbo]

around 700 torque
that would be great for now

I'm sure that will be easily acheivable. How much power will that take 800-850?

 

[scoooby slayer]

around 700 torque
that would be great for now

I hope you've got a decent gearbox if your talking lb/ft ......

 

[Calibrat]

tbh i dont know, but the heads all ported and polished with oversized valves.
so should pull nice and hard

 

[scoooby slayer]

if you want to make over 800 hp with an efr 9180 you will need alot of boost over 2 bar im sure.

heres some plots anyway


BorgWarner EFR 9180 Turbo - Full-Race.com

 

[Sub Boy]

Were the -5 on a 2.6 though?

Yeah they were, however the -5s hit max boost 1700rpm higher than the EFR does on my RB30, and the EFR makes over 100hp more, so you can't put it all down to the extra displacement.

 

[scoooby slayer]

my -5s on a 2.6 did feel a little lazy, made good power though at just 1.2 bar of boost





as long as it was kept in boost threshold though it was very responsive.

 

[scoooby slayer]

if you want to make over 800 hp with an efr 9180 you will need alot of boost over 2 bar im sure.

heres some plots anyway


BorgWarner EFR 9180 Turbo - Full-Race.com

the evo in the plots in the link is a 2.2 motor.
at 1.4 bar it made 600 hp, 1.9 bar it made 707 hp and at 2.5 bar it made 808 hp !

it needs a lot of boost evidently to move the air but from those results doesn't seem to loose any efficiency as the boost gets right upto 2.5 bar with 100hp increase with every 0.5 bar of boost, I wonder if there still as efficient up at 3 bar ?

 

[Lith]

You've seen a 4cylinder engine designed originally to develop punchy midrange power fitted with a 900hp+ turbo and surmised that needing a lot of boost to make 800hp is because of the turbo?

If you are going to be making authoritative statements on how a turbo is performing you should look at the compressor maps at least... Or for amusements sake have you pondered what kind of rpm and VE a 2.2 litre would need to spin up 800hp on under 2.5bar in petrol? At a quick glance it looks like on the right engine it should be capable of hitting 800bhp at anything over 1.3bar... Or less depending on the fuel.

 

[scoooby slayer]

You've seen a 4cylinder engine designed originally to develop punchy midrange power fitted with a 900hp+ turbo and surmised that needing a lot of boost to make 800hp is because of the turbo?

If you are going to be making authoritative statements on how a turbo is performing you should look at the compressor maps at least... Or for amusements sake have you pondered what kind of rpm and VE a 2.2 litre would need to spin up 800hp on under 2.5bar in petrol? At a quick glance it looks like on the right engine it should be capable of hitting 800bhp at anything over 1.3bar... Or less depending on the fuel.

whatever the comp maps say that's 2 results now one on a 2.2 and one on an rb30 this side of the pond that have needed a lot of boost to make the numbers, the evo made 707 at 2 bar, the rb30 made 770 at 2 bar im almost certain my gt40 would make 770 at 2 bar on an rb30, im only 60 hp off now with my rb27 at 1.5 bar !

also that evo engine is built by mad and will be built for the task at hand and to get the best from that turbo.


id like to see an engine capable of 800 hp with an efr 9180 at 1.3 bar ....

 

[Lith]

whatever the comp maps say that's 2 results now one on a 2.2 and one on an rb30 this side of the pond that have needed a lot of boost to make the numbers, the evo made 707 at 2 bar, the rb30 made 770 at 2 bar im almost certain my gt40 would make 770 at 2 bar on an rb30, im only 60 hp off now with my rb27 at 1.5 bar !

Again, the turbo is only one part of the puzzle. It can't make the engine any more efficient than it is - it just gives it more atmosphere to play with.

also that evo engine is built by mad and will be built for the task at hand and to get the best from that turbo.

Clearly, it made the power.

id like to see an engine capable of 800 hp with an efr 9180 at 1.3 bar ....

Sure - a 4litre straight six Ford :https://www.facebook.com/FullRaceMotorsports/posts/10151933179116129?stream_ref=10

It's running over 20psi in that clip - though it's also on E85, and if you consider those cars weigh near 2000kg and it did a mid 9 and mid 140mph it is also making more power than you'd get from a GT4094R.