4N Motorsport Single turbo kit

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4N Motorsport

Specialist
Vendor
Dec 11, 2017
61
California
4N Motorsport new product release!!

We have developed and released the first bottom mount turbo kit to hit production. My idea was to design a high flowing twin scroll manifold and build it as close to equal length as possible. Our development car is using the gtw6765r turbo. From the first start up of this car the sound is unbelievable!!! videos online don’t do it justice. Spool up is incredible and I am reaching 600wtq at 3,900 and hitting peak 664wtq at 4800rpms. This is with a 67mm 1.0 A.R turbo!!!! I have attached a dyno graph and turbo kit photos. We just launched our website this morning and I will be adding more information throughout the week and answering any emails/ phone calls regarding questions about this kit. We hit 752whp on 30psi and unfortunately our lpfp was crashing below 50Psi causing the port injection to lean out. We were running a e60 mixture. We will be going back to the dyno in 2 weeks with a custom lpfp built in house with pump e85 and plans to break the stock engine HP world record. The group buy kit price is $6100 priced with a water cooled ball bearing gtw6765r. The deposit is 2,000. We have 6 slots available out of 10. To secure your preorder go on our website www.4nmotorsport.com and select options for the downpipe. @WedgePerformance has been tuning our car via MHD and I highly recommend them. Feel free to ask any questions!! Gone are the days of the horrible s55 exhaust note 😎
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Last edited:

SlowE93

Sergeant
Jul 2, 2017
464
Is this just to hype the product for built motors ?
Looks and performance is badass for sure ! Not knocking the product at all.
I ask because in the N54 world, many turbo manufacturers brag about torque and such, yet to have the motor live longer, tuners tune out torque to save rods which make it pointless to have unless you have a built motor that can take the abuse.
Can the s55 handle that much torque that down low STOCK ?? Or is this product more aimed at people with built motors ?
 

4N Motorsport

Specialist
Vendor
Dec 11, 2017
61
California
Is this just to hype the product for built motors ?
Looks and performance is badass for sure ! Not knocking the product at all.
I ask because in the N54 world, many turbo manufacturers brag about torque and such, yet to have the motor live longer, tuners tune out torque to save rods which make it pointless to have unless you have a built motor that can take the abuse.
Can the s55 handle that much torque that down low STOCK ?? Or is this product more aimed at people with built motors ?
This can be ran perfectly fine on a stock block. The car above is stock except for a Max psi crank hub. Torque is not tuned out at the moment. Peak tq comes in around 4800 if you read the graph. Having the torque come in there is much safer than upgraded twins peaking at 4,000. An insane power band up top makes this kit worth it as well as the sound alone. Also the ability to upgrade turbos in the future and ease of maintenance. Only two hours to install with subframe in the car.

you have more pictures of the o2 sensor locations? why were they put on the wastegate stand-offs?
They are close enough to the collector to properly read 02s even with the wastegates shut. Cruising around there is enough turbulence for a perfect reading. Four months of daily driving and hundreds of pulls have confirmed this. They were mounted there to achieve the proper wide band mounting angle vertically. Otherwise excessive moisture from startup will crack the ceramic element of the 02s.
 
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SlowE93

Sergeant
Jul 2, 2017
464
This can be ran perfectly fine on a stock block. The car above is stock except for a Max psi crank hub. Torque is not tuned out at the moment. Peak tq comes in around 4800 if you read the graph. Having the torque come in there is much safer than upgraded twins peaking at 4,000. An insane power band up top makes this kit worth it as well as the sound alone. Also the ability to upgrade turbos in the future and ease of maintenance. Only two hours to install with subframe in the car.
The graphs look cropped to me. Maybe because Im on mobile ? I was just asking about the 664wtq at 3900 rpms. On the N54 i have seen people say that if you are making 500wtq at 4k, regardless of what peak torque may be, its in the territory of bending rods because its coming in too soon. So 664wtq at just under 4k (3900) rpm seems like it could easily bend a rod.
Once again, NOT knocking the product. That would be an absolute monster with that power curve. Just curious on longevity of STOCK block. I ask because I was looking at a couple M4s. Ill leave as I dont want to derail this thread or it be mistaken as a negative comment.
 
Last edited:
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Reactions: rac

4N Motorsport

Specialist
Vendor
Dec 11, 2017
61
California
The graphs look cropped to me. Maybe because Im on mobile ? I was just asking about the 664wtq at 3900 rpms. On the N54 i have seen people say that if you are making 500wtq at 4k, regardless of what peak torque may be, its in the territory of bending rods because its coming in too soon. So 664wtq at just under 4k (3900) rpm seems like it could easily bend a rod.
Once again, NOT knocking the product. That would be an absolute monster with that power curve. Just curious on longevity of STOCK block. I ask because I was looking at a couple M4s. Ill leave as I dont want to derail this thread or it be mistaken as a negative comment.
I actually mistyped in my release post above. Peak torque 664wtq is coming in at 4,800 rpms. I was referring to 600wtq coming in at 3,900.
 
  • 1Like
Reactions: Torgus

Tedbuildiy

Lurker
Jan 9, 2020
17
Ve
4N Motorsport new product release!!

We have developed and released the first bottom mount turbo kit to hit production. My idea was to design a high flowing twin scroll manifold and build it as close to equal length as possible. Our development car is using the gtw6765r turbo. From the first start up of this car the sound is unbelievable!!! videos online don’t do it justice. Spool up is incredible and I am reaching 600wtq at 3,900 and hitting peak 664wtq at 4800rpms. This is with a 67mm 1.0 A.R turbo!!!! I have attached a dyno graph and turbo kit photos. We just launched our website this morning and I will be adding more information throughout the week and answering any emails/ phone calls regarding questions about this kit. We hit 752whp on 30psi and unfortunately our lpfp was crashing below 50Psi causing the port injection to lean out. We were running a e60 mixture. We will be going back to the dyno in 2 weeks with a custom lpfp built in house with pump e85 and plans to break the stock engine HP world record. The group buy kit price is $6100 priced with a water cooled ball bearing gtw6765r. The deposit is 2,000. We have 6 slots available out of 10. To secure your preorder go on our website www.4nmotorsport.com and select options for the downpipe. @WedgePerformance has been tuning our car via MHD and I highly recommend them. Feel free to ask any questions!! Gone are the days of the horrible s55 exhaust note 😎
View attachment 34490View attachment 34491
very very interested, is this for LHD only or is RHD an option ?
 

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