BorgWarner EFR 8374 IWG Dyno Results
03-28-15, 08:41 PM
#51
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at sea level the EFR8374 turbo is tough to beat. I like the IWG version.
I would run this, even at altitude I like the EFR8374. the 7670 is also a great option if you do more autox, tight circuit stuff. the efr8374 is like the michael jordan of basketball. He has a good vert, he can dribble, can shoot, has hands the size of a gigantic person, and knows the game. the efr7670 is more like a point guard who isn't as tall but can do almost all the same stuff (isiah thomas?).
I would run this, even at altitude I like the EFR8374. the 7670 is also a great option if you do more autox, tight circuit stuff. the efr8374 is like the michael jordan of basketball. He has a good vert, he can dribble, can shoot, has hands the size of a gigantic person, and knows the game. the efr7670 is more like a point guard who isn't as tall but can do almost all the same stuff (isiah thomas?).
lmao.....
03-29-15, 10:45 AM
#52
Senior Member
Where are the EGT number comparisons. Missed those.
Very tempted by the 7670 IWG 0.92 as my car is 90% road, but with the potential of more track work the 8374 1.04 EWG does appeal too, despite the additional expense of the EWG setup.
Very tempted by the 7670 IWG 0.92 as my car is 90% road, but with the potential of more track work the 8374 1.04 EWG does appeal too, despite the additional expense of the EWG setup.
03-30-15, 12:30 AM
#53
How would the turbo work on a 20b roadrace car? My rules states 600rwhp as a maximum so this would be perfect, but how would the backpreassure be? External gate is a must ofc. ....why dont anyone sell 8374/9180 hybrids :-(
03-30-15, 12:35 PM
#54
As soon as the engine is back together on our roadcourse car I am doing an entire dyno comparison days( back to back tests between 7670, 8374, 9180, iwg vs ewg, shortly vs long etc). I have all of the turbos, and manifolds finished sitting here ready for it.
Rotors are on their way back from balancing on the engine...
03-30-15, 02:08 PM
#56
As soon as the engine is back together on our roadcourse car I am doing an entire dyno comparison days( back to back tests between 7670, 8374, 9180, iwg vs ewg, shortly vs long etc). I have all of the turbos, and manifolds finished sitting here ready for it.
Rotors are on their way back from balancing on the engine...
Rotors are on their way back from balancing on the engine...
03-30-15, 04:46 PM
#58
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you and me both! EFR 8374 is *that* good. I pulled my 8374 off my evo, to try some other turbos.. but now I think its going back on.
03-31-15, 11:11 AM
#59
Senior Member
I do not think anyone has done that yet. 99% of the kits we sells are the 8374.
As soon as the engine is back together on our roadcourse car I am doing an entire dyno comparison days( back to back tests between 7670, 8374, 9180, iwg vs ewg, shortly vs long etc). I have all of the turbos, and manifolds finished sitting here ready for it.
Rotors are on their way back from balancing on the engine...
As soon as the engine is back together on our roadcourse car I am doing an entire dyno comparison days( back to back tests between 7670, 8374, 9180, iwg vs ewg, shortly vs long etc). I have all of the turbos, and manifolds finished sitting here ready for it.
Rotors are on their way back from balancing on the engine...
04-20-15, 04:07 AM
#65
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515rwhp was the max recorded. We have a ported motor going in now, and we will be testing all 3 turbochargers back to back( 7670/8374/9180 IWG). I have all the turbochargers here ready to go.
Turblown EFR IWG 8374 Turbo System Testing - YouTube
Turblown EFR IWG 8374 Roll Racing - YouTube
Turblown EFR IWG 8374 Turbo System Testing - YouTube
Turblown EFR IWG 8374 Roll Racing - YouTube
04-20-15, 08:32 AM
#66
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Wow, I was 100% on the 7670... but the 8374 is interesting. I'd like to know what's the power you can get from each on 91 octane, subscribing to this for dyno shootout!
04-22-15, 03:04 AM
#70
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Am running the 8374 with 1.05 hot side fully divided short manifold and twin external gates on my mildly ported 13BREW. Is running E85 fuel. Was chasing area under the curve and response as opposed to peak number as it is a tarmac rally car. Car is running 20psi, is hitting that at approx 3200 rpm and making 442 ATW. Am very happy with the results. Great initial spool up and power, epic midrange and top end and great transient response on and off the throttle. Spool is just always there. The minute you breathe on the throttle its making boost.
I would have considered the IWG for simplicity but they were an unknown quantity as to whether the internal gate could cope with rotary flow when we were at that stage of the build so we erred on the side of caution with the ext gate setup.
I would have considered the IWG for simplicity but they were an unknown quantity as to whether the internal gate could cope with rotary flow when we were at that stage of the build so we erred on the side of caution with the ext gate setup.
04-22-15, 03:55 AM
#73
Full Member
Unfortunately never actually ran the tdx61r. Made the manifold and everything but once I saw the reports of what the EFR was doing I gambled on it being the best way forward. Would definitely be interesting to see how the TDX61 stacks up though.
