Well Andrew, that's one way to prevent the EWG from falling off the first time you take it on track! ;)

Nice job.

Andrew, any chance you could show us what the downpipe looks like? On the bench is cool but in situ would be even better.

Specifically, I'm curious as to how much clearance there is around the brake and heater hoses, and the radius on the downpipe.

Also, those pics are glorious. I saw them before on my phone and thought they were renders, not pics of actual items. In SLA they look otherworldly.

C
 

Its ok I'm a sensitive Miata owner who loves forced induction and being touched by men so I tend to get bullied in the forums

See? You fit right in. :bigtu:

Nothing close enough to production, so any pics of the one DP that does exist would just confuse people. It will be 3" from the turbo back, with 3" CLR bends. I would have preferred 4.5" but it's just not doable with A/C and P/S in the engine bay too. If the stars align, it will be CNC compound mandrel bent. It will also play nice with both stock exhausts and full 3" units alike.

Thank you sir. I think it's way beyond what people have come to expect from cast-manifold setups. :party:

I expect a 1.6 cast-manifold. :rofl::rofl::rofl:

Any consideration of an EGT sensor in the collector? I am perhaps one of the last people that still use an EGT gauge, so in either way. However I prefer to hang on to that relic...

Not an integrated one, no. It adds cost to every manifold for a feature that, in reality, few will actually use. The manifold will be thick enough to drill/tap for an EGT bung anywhere you like.

Thank you for the explanation. In reality, few will definitely use as these are relics of past tuning practices.

^ Don't feel like too much of a dinosaur, I'm adding one myself. More information is more better! But drilling/tapping one is pretty trivial as long as the manifold has the thickness not to crack which I'll trust Sav on that one. :D

It'd be nice if there was a convenient flat part that was easy to drill, vs trying to do it on a surface that's curved in two dimensions, but... :)

--Ian

I drilled my turbine housing for an EGT sensor.

Not yet sure how this manifold will differ in performance compared to the one i am using, but i will agree that the EFR is quite difficult to keep within the stock rod limits. My 6258 destroyed my old tired stock 2000 block on the low pressure actuator can with 1mm of preload. I will admit that my engine had been thoroughly abused for the previous 65K miles with a ShanghiT28 at ~220whp. I am sure it was quite ready to blow without the extra headroom of the EFR and someone with a healthy stock block will likely see better results.

With that said, it looks like his turbo position is further forward than mine. I am sure this is allowing TSE to have a straighter downpipe configuration. I am curious to see if this will provide a more controllable boost level through the RPM range.

Props to Andrew for developing such a high quality piece of hardware at such an affordable cost for our cars. I am loving the motor he built for me and i am sure these turbo kits will perform spectacularly for us.

Glad I waited and didn't buy the Shanghai setup! :rofl:

Huuuh? I thought touching cocks WAS the topic... am I in the wrong forum?

Keith

This is the touching cocks section. I'm sure an actual vendor's section formal announcement thread will pop up once the cock touching concludes with a big release. This simply began as a speculation thread. There will be much tighter controls on BS in the formal thread, I am certain.

This thread started in April of 2012 with a speculation of a summer of 2012 kit release.

I'm going to advise Swimming to maybe let someone else tune his car moving forward.

I subscribed to this thread back in 2013, I find it both sad and amusing that I still get notifications in my gmail about replies because I'm still really hoping there's going to be a post one day saying this kit is for sale, here's pictures of it, here's a video of it on the track, and here's X,Y,Z's impressions and here's the price and options.

le sigh

You do realize I posted pictures of the manifold three pages ago, right? And talked about pricing? :party:

post 471, in which I talk lots about the progress, post pictures, and discuss pricing

and i just got lars mkturbo. i guess ill be in two first run group buys :party::drool:

On the plus side, my setup is less then just the turbo on the TSE setup. On the downside, the TSE setup should be better then mine in every other way. I see it as 2 completely different ends of the market. TSE if you want to track the car, MKTurbo if you are a starving artist.

I will most likely be jumping in on a TSE group buy for shits and giggles. I need even more setups in my garage.

Okay, maybe I am dense or missed a post... In post #471, I see two different manifolds. The first has the turbo flange offset towards one end and looks like a log style manifold. The turbo flange on the second looks centered and more of a 4-1 style with the two center cylinders having short runners. Which is representative of the eventual production design?

It's two pictures of the same part. If you see otherwise, it's your eyes deceiving you. The turbo flange is centered on the #2 runner. It is not a log manifold by anyone's definition - it is a true 4-1 tubular-style.

Its just the angle of the picture that hides the runners in the first picture.

Top-down shot to help you:

Attachment 237725

Video walk around with naked commentary?

If you've posted in this thread (in the last 100 posts or so) exhibiting interest, you have a PM in your inbox with details on how to participate in the group buy.

For the lurkers out there, here's the same info:

The price for the manifold alone without a turbocharger will be $550 for this group buy.

The price for a manifold and a turbocharger will be $1900 for this group buy.

These prices are limited to the first ten people who respond. Expect retail pricing to be 15-20% higher.

If you're interested in participating, send an email to info at trackspeed engineering dot com with your full shipping address and PayPal address. I will send a Paypal invoice to you with the full total including shipping and taxes where applicable. If you are local to our Sunnyvale location, we will allow will-call on the parts when they arrive.

Details on the downpipe to complement this setup will be forthcoming in the next few weeks. Retail on the downpipe should not exceed $400, and group buy pricing should be under that.

Current expectation on shipment of production parts is approximately 20 weeks from today.

What changed?

The price.

Fiddy bucks ain't gonna break you, Scro.

I can't afford to sell them at that price unless I'm bundling them with other parts that I can make money on. I don't want to punish the guys who already own turbos, but selling parts at your cost is not how the lights stay on.

Email sent...

So, after Miatas @ MRLS 2015?

Yes. I am going to try really, really hard to have the first-article at MRLS, but there's no way the production stuff makes it in time.

In for baller shit. Ordered me a manifold and 6758.

Bah! Just spray paint the PLA SLA model silver and install it. Tell everyone that's how good investment cast really is. Keep EGTs under 180°C and you should be fine ;)

Email sent.

I'll be all smuckers over it until next spring. My NB2 will run through the winter on an EFR6258 and stock shortblock, but the setup I really want involves a built shortblock, EFR6758, and E85 :party:

I'm amassing parts for a built motor at the moment. By the time thid thing actually gets installed, the car will be ready. This is still a 1-2 year project. I'm going to take my time, but the price for a killer turbo and durable, well designed cast manifold doesn't seem like its possible to be beat right now.

Email sent.

All emails have been replied to. Jeff, I don't see one from you - make sure you sent it to the right place. Found it.

I'm somewhat stunned you don't have 10 takers yet.

I think I'm at 9. I'll be kind and extend the GB a day or two, but if you are on the fence, my suggestion is that you get off of it quickly. :party:

Sent in an email this morning.

i'd be in if it weren't for the fact that I won't have a built motor in time. I can't see the point in buying a manifold just to put it in a box on a shelf for six months to a year. By all means if you need buyers to make the initial cost of making the part economical i'm in, but i'd hate to steal a spot away from someone who will actually use it sometime soon.

Last year exactly this time I would have hit the pay button within 2 minutes of your initial post.

If this looks and performs as well as it should, it's gonna be amazing.

I thought about that part too, but here's the thing: EFR 6758 is a $1600-1700 turbo to purchase on its own. Any EFR manifold (FAB9, ARTECH, ETC) is probably $500-800. When someone says $1900 + shipping for a turbo and a manifold, for parts you were probably already going to buy, you take that deal. Right now, it looks like I spend $1600 on a turbo, and $350 on a manifold.

Plus I'm 85% on motor parts already. I think I'm looking for supporting parts at this point.

I am in. Assuming that my 6758 swaps into the t2 housing for the 6258 I should be able to do some back to back tests eventually.

err did the price on EFRs go up? I paid $1460 shipped for mine and it was literally the last 6758 available in the entire world when I bought it. It came from some audi shop.

The 6258 and 6758 are B1 frame EFRs, they should be identical externally unless I'm grossly mistaken. You should be able to swap "supercores" into the turbine housings between the two. If for some reason I decide the 6258 isn't enough for me, I'm just going to buy a $1200 6758 supercore and upgrayedd.

The price seems to have jumped up $200-$300 when they went to the aluminum CHRA on the second generation B1 EFRs. I don't have facts to back it up, its just something I noticed after the announcement.

Oh yeah, the aluminum chara price jumped but at least like 6 months ago you could still get the iron chara at the old price and the aluminum was just an option. I'm considering swaping to the aluminum chara to save more nose weight.

I was using the retail prices from Fab9, treadstone, FullRace, etc.

Aluminum CHRAs are an option on the Supercore, but you can't buy a complete turbo in the 6258/6758 with the 0.64a/r T25 turbine with an aluminum CHRA (if you can, I have yet to come across the part number). You can buy a Supercore along with four or five other part numbers (turbine housing, WG actuator/bracket, hardware kit, etc) and build a complete turbo, but the final bill ends up about $200 higher for the aluminum CHRA.

12345

Their 2015 catalog shows both, with separate part numbers. You can get complete turbos with aluminum housings if you are buying a T4 twin-scroll housing bundled with it, but not if you want the normal 0.64a/r T25 housing. I'll call tomorrow to try and get some more details on exactly what can be obtained from them.

BW says that aluminum is an option, but iron will remain the standard CHRA. If you want an aluminum turbo, email me and I will calculate the price (assume ~$200 extra).

The turbos also ship with medium boost actuators, which is fine for built motors, but stock motor guys will likely need the low-boost to keep things safe. I'll be in touch with all the GB participants to determine which actuator they want.

This question hasn't been asked yet, but it will be: Turbine housing finish quality. The investment cast housings that have been available for these turbos are not being produced any further. All of the B1 "A" housings are going to be produced in the shell-mold finish. There are some investment housings still in Borg's inventory, as well as in their distributor's inventory, but there is no way to tell what turbo has what style of housing unless you physically open each box and check.

For the GB, some of you will get shell mold and some of you will get investment cast. Nobody will get sand cast housings. I can't guarantee who gets what. Eventually, every turbo shipped will come with the shell mold housing.

I personally think the shell mold quality is perfectly adequate, and since our manifolds are shell mold cast as well, the finish between the shell mold turbine and the shell mold manifold will be very similar.

Here are the two options together:

Attachment 237715

Shell mold close-up:
Attachment 237716

Investment close-up:
Attachment 237717

Any performance difference?

That would be from the surface finish of the internal passages.

Is there a difference there?

I'm not mad at that shell mold finish at all. If you wanted to, I guess you could clean up the turbine housing on your own, and then get it coated to make it pretty. But it shouldn't matter unless you're jeffbucc. :bowrofl:

I hope the inside is nice and smooth.

Borg says the difference is within standard production tolerances (less than 1%), even for the sand cast housing. There are some internal parting lines on the shell mold housing, but it's nothing substantial.