N54 Inlets Results

[prmateus]

Hey guys

I know i had a similar question and was wondering about the actual results gained by inlets not just ones posted by vendors

So here is my dyno graph done before and after only difference is the Inlets no other changes made.

My car runs map 6 running 19.5psi custom Down pipes and midpipes with Hartge back box, charge pipe and HKS BOV

As you can see my inlet setup isnt what you normally see as i we are RHD so I ran MMP style for the Front turbo and then followed OEM route for the rear as the stearing did not allow for MMP style, All of this was done DIY so no imported or expensive kits

If anyone needs help doing this in Gauteng let me know

 

[KarshS]

What are Inlets?

 

[prmateus]

What are Inlets?

The pipe that runs from the turbo to the intake, the stock ones can be quite restrictive for higher boost

 

[KarshS]

Ah cool....And whats the cost of doing this?

 

[prmateus]

Ah cool....And whats the cost of doing this?

The parts themselves arent expensive interms of piping and filters but there is alot of time involved so the labour costs are were it gets you to install

 

[Acheron]

I take it the Map 6 boost targets were adjusted between the dyno runs. i.e. after installing the inlets? Was fuel used constant between the two runs as well?

 

[prmateus]

I take it the Map 6 boost targets were adjusted between the dyno runs. i.e. after installing the inlets? Was fuel used constant between the two runs as well?

No i ran the same map 6, didnt change because my Map 6 is pretty maxxed out without adding the new TMAP sensor for JB4 to read above 20psi

The gains are from the turbos being able to Hit the target sooner and stay there

Fueling was constant, it went for a dyno to the shop to do the inlets then back to the dyno nothing changed

 

[Acheron]

I take it the Map 6 boost targets were adjusted between the dyno runs. i.e. after installing the inlets? Was fuel used constant between the two runs as well?

No i ran the same map 6, didnt change because my Map 6 is pretty maxxed out without adding the new TMAP sensor for JB4 to read above 20psi

The gains are from the turbos being able to Hit the target sooner and stay there

Fueling was constant, it went for a dyno to the shop to do the inlets then back to the dyno nothing changed

If the boost targets were consistent then that's a great result :clapper:

The reason I questioned fueling is that the "before" torque curve shows some evidence of timing pull where I'd normally expect it on an N54. Compare that to the "after" result, which is much smoother (unexpected considered the car is running more boost, sooner) I assumed that the fueling situation had been improved as well.

All in all, inlets are definitely a great mod on this platform whether it be to increase the upper limit of the stock turbos or simply to take some strain off the turbos when running 20psi or less.

 

[prmateus]

Yeah the problem was my map 6 was too aggressive originally for stock inlets in the logs you see the boost moving away from target quickly so I had lots of problems dipping into map 4
Saving up for fuel it now

 

[ShaunB]

Picked up all that power and NM just from changing the intake pipes? That is impressive.

 

[prmateus]

If you see the stock pipes you would be horrified at how bad they are

When i saw them i thought theyd flow about as much as an asthmatic through a straw

 

[Acheron]

Yeah the problem was my map 6 was too aggressive originally for stock inlets in the logs you see the boost moving away from target quickly so I had lots of problems dipping into map 4
Saving up for fuel it now

Did you happen to log both runs? Would be interesting to see how PWM drops after the inlets are added.

Get that Fuel-it upgrade in there along with the uprated TMAP, run a decent mix of ethanol and you should be well into the 300kw range.

 

[hoosain]

impressive paulo
where have you been hiding?

 

[prmateus]

Work life kept me busy the last few years took some time off recently and spent some time upgrading the car so I'm back now

 

[M3_devil]

That's impressive.

Thanks for sharing

 

[hoosain]

Work life kept me busy the last few years took some time off recently and spent some time upgrading the car so I'm back now

cool keep in touch

 

[bmsportzn135i]

:clapper:
Awesome gains.

 

[claude.herbert]

Nice gains :clapper:

 

[Teezy_F30]

Thats a massive increase in torque!! ..