Borgwarner Twin Scroll 7670 With Dyno Graph
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From: Raleigh, Transplanted from Toronto, Canada
Until there are more dyno's and more people using it and various results across MD, DD, DJ, VD, VDR the result is going to be questioned.
I'm just glad someone has some results of some sort and it def. looks like a beast.
As more people get them there will be more dyno comparisons with other turbo's on other types of dynos.
I'm just glad someone has some results of some sort and it def. looks like a beast.
As more people get them there will be more dyno comparisons with other turbo's on other types of dynos.
Can we NOT turn this into a dyno discussion thread??? Its really irrelevant. Stock turbo graphs are posted for comparison. So that is all that is really needed to see how stellar this setup is.
Comical spool and tq. This is v8 like based on the graph. What is this comparable to from fp's offerings? black or 3582? If it's making 604 with built head, 2.3 and 30 psi e85, what kind of numbers can be projected for a normal built 2.0 with s2's on pump? Excellent graph, but its hard to compare to normal folks who don't have Buschur's flagship engine he has built, and his built head. The real question would be how was your graph with a different turbo? Don't underestimate that 2.3rpm folks and just talk about dyno this dyno that, when the combination of parts is top notch. Sure the air intake was stock and not the best cams but that 2.3 has a huge role with the spool up and early tq
Neck bending tq tho!
Neck bending tq tho!
Last edited by Broham; Sep 8, 2011 at 12:14 PM.
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From: Belgium
Nobody cares that you think the Dynapack is not the best dyno.
This dyno is repeatable in measurement and has been compared to MD's and DJ's.
I can infer that this car would make every bit of 640whp on a DJ... I can also infer that it would spool up within 150 rpms or so on a DJ. (Further more he's running a stock intake manifold with HKS 280 cams!)
The point is that the EFR7670 is 640whp+ capable with peak torque at ~ 4k on a 2.3L. This turbo has features that were not previously available to the public... titanium turbine wheel, badass CHRA, FORGED milled compressor wheels... among all the other great features. It's no surprise it out performs the GTX lineup or the HTA lineup. These results attempt to quantify "how much" better it really is.
This thread is about the turbo's performance not the dyno's. See the forrest through the trees.
This dyno is repeatable in measurement and has been compared to MD's and DJ's.
I can infer that this car would make every bit of 640whp on a DJ... I can also infer that it would spool up within 150 rpms or so on a DJ. (Further more he's running a stock intake manifold with HKS 280 cams!)
The point is that the EFR7670 is 640whp+ capable with peak torque at ~ 4k on a 2.3L. This turbo has features that were not previously available to the public... titanium turbine wheel, badass CHRA, FORGED milled compressor wheels... among all the other great features. It's no surprise it out performs the GTX lineup or the HTA lineup. These results attempt to quantify "how much" better it really is.
This thread is about the turbo's performance not the dyno's. See the forrest through the trees.
To the OP, at what rpm are you seeing full boot at the road?
Tks
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From: Columbia, MD
Dyno arguments aside, I don't think I've seen a better looking graph... peak torque at 4k rpms? 200 ft lbs to 600 ft lbs in 1000 rpms... is neck snapping. On a track the driver will have to be very careful to not dip below peak torque or the car is going to go sideways. Above that though, stump pulling v8 power. If the drivetrain, aero, and driver can use it, this setup is amazing. I don't think I've ever been so jealous of a build.
The BR RPM motor is awesome. Davids setup is spot on... it explains why I keep using his stuff. I can post another turbo on this 2.3...it won't do much as its no apples to Apple comparison . I wanted an awesome setup...this why I went this route.
I'd love to take it to every dyno and try every setup.... its not going to happen. It doesn't matter to me much anyway. I know what a good setup this is. Can I make more power...yep. do I want to or even plan on running it's at 30psi...doubtful. nobody is playing Dyno games...The setup is as I said sick.
Haha.... want to come see the car? I'll be at chuckawalla on the 18th.... ask nice and I might even take you on a ride.
I'd love to take it to every dyno and try every setup.... its not going to happen. It doesn't matter to me much anyway. I know what a good setup this is. Can I make more power...yep. do I want to or even plan on running it's at 30psi...doubtful. nobody is playing Dyno games...The setup is as I said sick.
Haha.... want to come see the car? I'll be at chuckawalla on the 18th.... ask nice and I might even take you on a ride.
Last edited by leetEVO; Sep 8, 2011 at 02:12 PM.
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From: Italy
It's simply unreal, efrs start to justify the ultra long wait, i never saw a evo producing 450 hp at only 4000 rpm, even on a stroker.....
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From: MA
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