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BorgWarner EFR 8374 IWG Dyno Results

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BorgWarner EFR 8374 IWG Dyno Results

Old 06-13-15, 11:22 PM
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Originally Posted by Monkman33 View Post
Not so. With a low mounted turbo, you have to look at the clearance of the two lines running along the frame rail to the firewall.
Someone else will have to chime in, I've only played with rhd cars so no such issue exsists
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Old 06-14-15, 07:27 AM
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My shorty manifold is similar to Turblown's and there is good clearance on the AC lines.

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Old 06-22-15, 01:27 AM
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Originally Posted by Turblown View Post

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...
Any updates on this?
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Old 07-09-15, 02:14 PM
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Can't wait to see more results. Great stuff!
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Old 07-09-15, 03:22 PM
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Its going to be a while on this car.. So I am going to do it on another car( our 9180 FC, waiting for new clutch now )
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Old 07-24-15, 09:15 PM
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A lot of people have been asking for pump gas results in terms of boost response.

Here is an FD I have remotely tuned. It is on pump gas with a large street port. In my experience porting hurts response. The new twinport turbosmart IWG actuator is being added and this car will be going to 30psi with water injection.
Attached Thumbnails BorgWarner EFR 8374 IWG Dyno Results-jonefriwg8374oeefrwgcan.jpg   BorgWarner EFR 8374 IWG Dyno Results-efr-iwg-turbosmart-upgrade-twin-port.jpeg  
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Old 07-28-15, 01:00 AM
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This is frustrating. I just went itb's and standalone.... now I want to make a plenum and a custom exhaust manifold so I can run one of these bad boys along with it.
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Old 07-28-15, 06:25 AM
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Originally Posted by Turblown View Post
A lot of people have been asking for pump gas results in terms of boost response.

Here is an FD I have remotely tuned. It is on pump gas with a large street port. In my experience porting hurts response. The new twinport turbosmart IWG actuator is being added and this car will be going to 30psi with water injection.
Is the actuator really worth the extra money?
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Old 07-29-15, 03:06 PM
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Originally Posted by almoststockrepu View Post
Is the actuator really worth the extra money?
When the supplied low boost canister can only do 11lbs pounds with duty cycle maxed on the boost controller i would say yes it is.

Either that or order another but higher psi Borg Warner canister.


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Old 07-29-15, 11:23 PM
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Keep in mind we got to 27 psi reliabily with medium can on Shawns 8374 iwg. This was with 7 turns of preload on the actuator however. We are waiting on the clutch to arrive and we will hop back on and thourghly test all settings and configurations.
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Old 08-04-15, 11:00 PM
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Here is another forum member's 8374 system on pump gas with a large street port. OE BW medium actuator.
Details are all in the chart, you can follow the blue trace to show where the engine was. Bottom near .01 TPS @ 2767RPMs is the start of the action. I ended the trace at the 99.60 WOT.
Attached Thumbnails BorgWarner EFR 8374 IWG Dyno Results-pumpgas8374iwg.jpg  
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Last edited by Turblown; 08-04-15 at 11:06 PM.
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Old 08-05-15, 11:14 AM
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Originally Posted by Turblown View Post
Here is another forum member's 8374 system on pump gas with a large street port. OE BW medium actuator.
Details are all in the chart, you can follow the blue trace to show where the engine was. Bottom near .01 TPS @ 2767RPMs is the start of the action. I ended the trace at the 99.60 WOT.
Can we see the power and torque graph
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Old 08-06-15, 03:35 PM
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I'm sold on the 8374, thank God I didn't go for the GT35 I had in mind.
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Old 08-06-15, 04:22 PM
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Originally Posted by almoststockrepu View Post
Can we see the power and torque graph
This car, and the other one are being remotely tuned on the street. I believe both will see the dyno when finished.
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Old 08-07-15, 08:20 AM
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Just curious, is the .92 A/R housing on a 7670, will that fit on a 8374? are they the same housing? or are they different? Looking to possibly swap housing on two turbo's. anyone know?
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Old 08-07-15, 08:27 AM
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Internal bore is different. 70 vs 74mm turbine wheels. Everything else is the same.
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Old 08-07-15, 10:52 AM
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Originally Posted by h_turbo View Post
I'm sold on the 8374, thank God I didn't go for the GT35 I had in mind.
good choice, you won't regret it - EFR 8374 is THAT good
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Old 08-21-15, 08:59 AM
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We will be updating our efr iwg turbo systems very soon!
Attached Thumbnails BorgWarner EFR 8374 IWG Dyno Results-webpage_20150820_171425.jpg   BorgWarner EFR 8374 IWG Dyno Results-webpage_20150820_171354.jpg   BorgWarner EFR 8374 IWG Dyno Results-webpage_20150820_171458.jpg  
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Old 08-21-15, 11:57 AM
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Hopefully we start to see some more results from these as more of them are installed. I'd really love to see if the prediction on the first page of almost 600whp is actually possible on this IWG turbo, especially since IIRC that is near the theoretical upper limit of this turbo on a rotary. I'd also like to see how the IWG responds above 30psi.

600whp on pump gas(with water injection) and this kind of response would make for a very fun street car.
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Old 08-21-15, 08:04 PM
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Originally Posted by rotaryfreak3 View Post
Hopefully we start to see some more results from these as more of them are installed. I'd really love to see if the prediction on the first page of almost 600whp is actually possible on this IWG turbo, especially since IIRC that is near the theoretical upper limit of this turbo on a rotary. I'd also like to see how the IWG responds above 30psi.

600whp on pump gas(with water injection) and this kind of response would make for a very fun street car.
Not sure there are a lot of folks with 600hp 13b's on pump and water. I highly doubt 600 on any 8374. Maybe on the 9180. Strictly e85 if you're not into rebuilding a lot, I think.
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Old 08-21-15, 10:59 PM
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Originally Posted by Narfle View Post
Not sure there are a lot of folks with 600hp 13b's on pump and water. I highly doubt 600 on any 8374. Maybe on the 9180. Strictly e85 if you're not into rebuilding a lot, I think.
I believe Rice Racing has done it a few times, 600 on pump and water that is. IIRC, Raceonly, who has posted in this thread, did 700+ on pump and water, with a 9180 no less.
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Old 08-23-15, 05:45 PM
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Impressive, but I don't know how they sleep at night.
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Old 08-23-15, 10:33 PM
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You realise water injection isn't some kind of voodoo magic right? There are plenty of SAE papers and numerous other academic papers on it.

In shitbox T2 block based context green brothers went to something like 750rwhp (?) on a street driven extend port 13b on water alone before going to water meth running a basic pre turbo atomiser. Thing did a lot of running too.

If you are worried about engine longevity I think the oil change frequency and oil thinning of an alcohol fueled cars are of greater risk than running WI for a similar power target.

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Old 08-24-15, 12:22 AM
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Sure, here...

Originally Posted by rx72c View Post
Just made 542rwhp on 30psi and we are still only at 7k
car is on 93 Oct fuel and is blowing out spark
cranes not powerful enough
I'm fairly sure it'll make 600rwhp on the same boost
still climbiing before it blows out spark
That's with a 9180...
And that's great. But, you probably couldn't pay me to push that power on a pump 13b.
If you're on that tip then god speed, sir.
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Old 08-24-15, 06:51 AM
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Originally Posted by Narfle View Post
Sure, here...



That's with a 9180...
And that's great. But, you probably couldn't pay me to push that power on a pump 13b.
If you're on that tip then god speed, sir.
He had earlier results on a fresher motor and different turbo:

https://www.rx7club.com/auxiliary-in...ection-863250/
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