[hyracer]

I've been running road course/HPDE events with my FBO RS for the past 5 years. I'm running coil overs, track tires, and upgraded brakes.
Now I'm considering going big turbo for more top end, but worried about losing too much low end. Anyone here tracking with a big turbo ( no drag racing) than can share experiences?
I can hang with most in the corners but those 500 HP cars leave me on the straights.

 

[Snox801]

I have yet to bring mine out to the hpde day. That being said I can tell you it does have me a bit worried I lost what made the car so great around the track. Now some tracks it will be great. Road America, Atlanta yep gonna be amazing. But my local tracks gratten and gingerman I think stock turbo maxed out would be much better.

 

[Snox801]

Just an idea but stock turbo with a ported head would probably be the setup. Would get enough top end gain but still keep that grunt out of the corners.

 

[White-RS2]

Not really a big turbo but I’m running the NX2 and it’s got plenty everywhere and drives like factory but better

 

[hyracer]

I'm considering that and may send a note to MoTec to see what they think. Probably add a set of forged rods as well since I spend a lot of time in the 6,000-7,000 RPM range.

Just an idea but stock turbo with a ported head would probably be the setup. Would get enough top end gain but still keep that grunt out of the corners.

 

[Snox801]

Btw I have the nx2 also and it loses that down low grunt for sure.

 

[hyracer]

I have a NX2 and Tune+ port injection sitting in my garage that I purchased from forum members. But I'm hesitant to go that direction now without running a Syvecs or some other controler (which I can't afford) to maintain turbo-spool, boost-per-gear, etc.

Not really a big turbo but I’m running the NX2 and it’s got plenty everywhere and drives like factory but better

 

[Rip City RS]

Not really a big turbo but I’m running the NX2 and it’s got plenty everywhere and drives like factory but better

What are you running for a Catalytic Converter? Or no cat?

 

[White-RS2]

Low down is all about the tuner not the NX2. This is an early mapping session and it’s over 200tq at 2200rpm and a far amount of torque below that.

You could always add in the Bosch fuel pump a 40% ish flow increase over factory, if your going to max out the factory turbo

If you’re going to port the head and you’re constantly in the 7-7.5k rpm range it’s worth dropping in a cam that supports those revs like either the Piper 270 or 285. Makes sense if the heads off make it breath better with a bit of lift and duration.

The Ford Performance cams run out of puff at 6k, but they are cheap and better than OEM.

 

[White-RS2]

What are you running for a Catalytic Converter? Or no cat?

I’m running the Milltex 3” sports Cat

 

[hyracer]

I just installed the Ford Performance Cam in July, along with a Roll Bar, harnesses, and removed the vibration balancer from the oil pan.
Sent a note to my tuner and he said running ported/cammed heads with the stock turbo will not make more power above 5k RPM. Stock turbo is too small.

 

[Snox801]

Low down is all about the tuner not the NX2. This is an early mapping session and it’s over 200tq at 2200rpm and a far amount of torque below that.

You could always add in the Bosch fuel pump a 40% ish flow increase over factory, if your going to max out the factory turbo

If you’re going to port the head and you’re constantly in the 7-7.5k rpm range it’s worth dropping in a cam that supports those revs like either the Piper 270 or 285. Makes sense if the heads off make it breath better with a bit of lift and duration.

The Ford Performance cams run out of puff at 6k, but they are cheap and better than OEM.
View attachment 363715

I agree with some but the tuner is never gonna be able to get the low end of the smaller stock turbo out of the nx2. In fact turbonetics said about 1k later light when they developed it. Mine come on early but is noticeable later than the stock one. And I ha e the lms hpfp.

 

[Snox801]

I just installed the Ford Performance Cam in July, along with a Roll Bar, harnesses, and removed the vibration balancer from the oil pan.
Sent a note to my tuner and he said running ported/cammed heads with the stock turbo will not make more power above 5k RPM. Stock turbo is too small.

That is good info to know. It may make more but if the turbo can’t pump
More it may not be worth the effort. Thanks for the info

 

[White-RS2]

That is good info to know. It may make more but if the turbo can’t pump
More it may not be worth the effort. Thanks for the info

Its not the head and porting that's the restriction its the Ford Performance cams.

The Ford Performance cam runs out of ability (lift) at 5500-6000rpm which if you work in levels of tune it is a 0.5 level (zero point five) even below the Piper256 cams which is a level 1.0, which gives you an actual 6000rpm of ability, with just a little bit more oomph

Never heard anyone say before a smoother flow and more air wont give more power. The OEM turbo "car dependent" is good for 440-470.

 

[gbassrace]

Hyracer, consider WMI for cooling which ever way you go. But that will get you 40-50 more hp and cooling before going turbo. So running any one component to it's limit isn't preferable. On track you'll never really see 4k and below so why worry about down low unless you daily it a lot. Head, cams, NX2, WMI, rods/pistons, with a good tune, it's all good.

 

[White-RS2]

@gbassrace

Very accurate figures on the WMI power projection, I actually get 45whp increase running a 30% mix to fuel

 

[hyracer]

I talked to Ryan yesterday at PD-Tuning. He'd like to see a data recording of a track session before he can make a good recommendation on what to do power wise. We did decide to forge the short block as a minimum because they can raise the torque limits on the stock turbo enough to destroy a stock block.
If the data shows I'm consistently keeping my RPM above a certain minimum then the NX2 install will make sense.
Downside is I have no track sessions coming up until Spring☹

 

[hyracer]

Thanks everyone for your suggestions/recommendations 👍

 

[gbassrace]

Nice, keep working with Ryan. Start back up in the Spring. And keep those rpms up 😁

 

[Snox801]

I talked to Ryan yesterday at PD-Tuning. He'd like to see a data recording of a track session before he can make a good recommendation on what to do power wise. We did decide to forge the short block as a minimum because they can raise the torque limits on the stock turbo enough to destroy a stock block.
If the data shows I'm consistently keeping my RPM above a certain minimum then the NX2 install will make sense.
Downside is I have no track sessions coming up until Spring☹

I love that idea. Built short block then see what you can get. Very easy to upgrade to the nx2 later. But boy that maxed out stock turbo would be my choice but I like low end and can always shift again.