I'm in for more info I've been holding out on upgraded from my ef3 just because of the Zero, and now I'm hearing of this Zypher ??? Curiosity has gotten me for sure. Can't wait to see data and all of these, maybe one of them would be a perfect match for a 2.2slr

 

My FPBlack and external wastegate MAP O2 Housing setup gives me a ‘bit’ of insight/comparison between an open scroll and a twin scroll setup.

I’ve been using both the OEM 18psi actuator and an external wastegate for the last few years. I initially tried this to help keep boost from falling off on the high end by the typical 2-3psi on the OEM wastegate. It worked well for its intended purpose, OEM flapper closed = twin scroll low end spool and torque. Then the external wastegate takes over control of the top end which keeps that extra couple of psi out the top.

A while back I had the cotter-key fall out of the OEM wastegate arm so the internal wastegate was disconnected and just flapping. When this happened, per my logs, there was an immediate 400rpm loss of spool. This is pretty significant and definitely was noticeable in the car’s performance. I investigated, found the problem, fixed it, and regained my lost spool times.

Without seeing the numbers, it would be pretty hard to convince me that there isn’t a loss in spool when going to the undivided hotside.

John-

 

That part I don't disagree with at all. There is definitely a significant change in entry cost now that the change in housings. Now it's not a simple swap in and out with the 'standard' components.

I don't disagree. In other experiences including Mikey's car, loss of spool time is a part of it. Loss of spool equates to torque profile changes. At the end of the day, I am in the "give me more torque camp". Corners on road courses reward torque, not hp. But I am most interested in area under the curve across the entire band. If I lose 2-300 rpm of spool but gain throughout the curve, that's a trade off I might like to make.

At the end of the day, we can make lots of assumptions and draw comparisons to other attempts, but until we see the data, it's only assumptions.

 

Completely agree. But am I being a baby in wanting FP to have made a SS TS housing with a 3" V-band exhaust and external wastegate?

 

I'll take a 67mm 71hta..

 

You obviously haven't done your homework if you accuse FP of being "sloppy, rushed, and lacking" when talking turbine housings.

Those housing you speak of are PROVEN to be junk.

Without a doubt, these housing do what FP thought was the best compromise between spool and peak hp. It might not match your ideals, but rest assured, they didn't invest probably $50k into these just to build a turd.

 

Church!

 

I agree. I've owned a kinugawa housing and it wasted my time and money. Neither in small quantities.

 

I didnt say get one of those at all. I said i bet they are happy. Because fp was killing the stock replacement market. Seems rushed because usually u see dyno numbers and test cars before a drastic change like this.

 

Did you miss the part where FP said this has been on Robert's car for awhile and they have tons of datalogs?

 

You miss the part where i want to be in cali and not get ****ed with? Im sure its great. Just a fast switch away from a market they had cornered. I havent seen any of these logs yet. He said they are not organized yet. Thats sloppy. I know fp is gold. But this new stainless mani as the only option lacks luster imho

 

I have had my Evo for 8 years in California and I have never been f-ed with.

And no one has seen the logs. They haven't been released yet. However, if you're über-concerned with stealth, the easy answer is just stick with a ported OEM housing. Easy. Breezy.

 

I ordered an fp red on Tuesday not knowing they changed the design or I probably wouldn't have got one but either way I hope their build time gets a little faster 4 weeks seems a little long but I have no idea how long it takes for other turbos.. So in about 4 weeks I'll be putting up my results

 

I Odin's it odd that people who spend 450 for an O2 dump and 1100 for a replacement manifold are complaining about a need for an 02 housing and dump tube for an external wastegate.

 

It's well past 4 weeks, try double that. My red has been on order for 9 weeks now and it'll still be another 1-3 weeks.