I wonder if the port is matched to the turbo side. Does that gasket gap look the same on the turbo side?

Wonder how the gasket looks like flattened out. I'll have to see when I pull off my old gasket and take a picture on both ends.

 

Am I reading this correctly? Do you have green(stock) and blue(FP) reversed because green(stock) reads higher, which would indicate the FP manifold lost power/torque in the midrange?

 

Blue is just manifold added, no tuning change
Teal is manifold with tune changed for manifold only. It's gained mid range

 

So the stock manifold in the summer made more power than the FP in the winter with no other change. Can you post the AFR changes? Those power changes could be attributed to the increased air density due to colder weather.

 

Sorry about that. Changed in original post. Post 479 is a better comparison as it's from November 2013.

 

Sorry for the mix up with the lines. The November 2013 is a better comparison.

With just the swap you can see a boost increase during spool up and midrange, causing leaner AFR's. It was .3 leaner at spool up and midrange on E85. Only .1 leaner up top.

 

It appears your tuning changes resulted in improved performance so my comments are only regarding the performance difference between the FP manifold and baseline. BTW, what was the baseline exhaust manifold?

From 5500rpm and up where the boost was the same the baseline manifold made more power/torque. Below 5500 rpm the FP manifold ran more boost and made more power, which is what I would expect. Without seeing the AFR and understanding the ambient temperature it is impossible to determine the impact of the FP manifold.

From what I see, the FP manifold performed similar to the baseline.

 

Looking forward to a stationary dyno comparison myself too much conditions variations to spend 400 based on a road dyno for me..

 

I think the gains will be much more pronounced once a better turbine housing is released. The manifold is not much of a restriction on the smaller stock frame turbos. It's peak capacity will be higher but you won't see gains until the stock one is a restriction. I think an FP Black or Zero are going to be the turbos to benefit from this.

 

Are we really getting a turbine housing? I had a 11.5 ebay one and it ate my 71 hta.

I want less egbp!

 

Or an EF4.

 

Haven't you seen their prototype EWG housing for FP stock frame turbos? There are no good pictures, but it can be seen peeking out behing the manifold in the pictures at the start of this thread.

 

Yes, kinda viewed it as the myth like the zero. Which fp has us on edge to see the future with. That was the "really" part

I will bet that they were designed in marriage so our preceivable gains could be skewed a bit.

 

Of course the tune improved the performance, but I've seen product comparisons that show little improvement without tuning. Won't people tune their car after they install parts? The baseline pull was with a stock, unported manifold. It was fully tuned.

Again true. It's pretty simple, more boost equals more power. The load levels went up due to the manifold. So when I retuned it accordingly it made more power.

I'm sure next week someone will post up a dyno tune that will have a base pull with a stock unported/ported. The unported/ported FP Mani will be changed on the dyno within minutes to keep the everything the same. I'm sure it will be similar to what we got, but doing it this way will be a better test. I'm looking forward to it.

 

I still have not gotten to install mine yet, waiting on the machine shop to give me my turbo back from me breaking the original studs. It sure does look nice sitting on the garage floor though