GB: 347SS Investment Cast Tapered BorgWarner EFR IWG Rx7 Turbo Manifolds

[Turblown]

We are now in the process of making 347SS investment cast BorgWarner EFR IWG Rx7 turbo manifolds. These will suite the 7670, 8374, & 9180 T4 IWG turbochargers on the FD3S 93-2002 Chassis, both LHD & RHD . These will only fit LHD FC3S rx7s. 8374/9180 on the FC3S chassis do require grinding on the LIM( a few mm to clear the compressor vband clamp). Twin Exhaust gas temperature, or exhaust manifold back-pressure bungs are also cast into both runners. All threaded portions are being rolled before the entire manifold is heat treated. The entrance to the runners are the same inner diameter as the exhaust sleeves, and taper as their reach the T4 flange. This process is not possible with your traditional welded turbo manifold. These will out last and out perform our current welded design. Lifetime warranty for original purchaser also! We should have the first 5 samples in 7 more weeks, then shortly after 30+ manifolds. There is no longer ANY reason to pay someone else to make a copy of our current welded design.

Please bare with us as this is the first group buy we have ever done. Also note we do NOT have a concrete time-frame in place for receiving these. Please do not enter into this group buy if you are not 100% committed to following through. If you want a full kit we can obviously put you down on the list, as we are also in the process of mass producing our IWG turbo systems and by the time these are done will have 30+ worth of full turbo kits in stock ready to ship.

Here is the pricing for just the turbo manifolds per the group buy. We will also knock x2 this amount off per full kit for the group buy( $200 off per 10, $400 for 20, $600 for 30)

Bare manifold group buy pricing only( includes freight in lower 48 states)
1-10 $700
11-20 $600
21-30 $500

Full details for the turbo kit are here;

BorgWarner EFR IWG FD3S Turbo System (http://www.turbosource.com/347SS-tapered-investment-cast-EFR-IWG-Rx7-turbo-ma-p/ts-icgb.htm)

We will be updating our blog soon to reflect a better collection of information including all the dynos charts and comparisons etc.

Please note that these manifolds are designed exactly like our welded units in terms of fitment. They are designed to be used with out inconel gasket which is thicker than our standard stamped 304ss gasket. You can use a a stamped gasket, but it does require grinding of the LIM on the FD3S chassis, and even more grinding than normal with 9180/8374 on the FC3S LIM.

We have 7 deposits so far.

[Turblown]

Finished machined samples will be here next week. I have attached a photo of the mold.. We are at 8 deposits.

[speedjunkie]

This is pretty cool.

[Turblown]

Thank you!

9 deposits!

[Turblown]

We are at 11 and first price break of $600 per manifold. We have our samples and first set will go out after I check them. I am currently out of town, but Shawn can assist via the phones and emails etc( 763 753 9939 is the office line).

[speedjunkie]

That is beautiful. Unfortunately I think I'd need one more port for an EMAP sensor lol.

[Monkman33]

Think drilling and tapping would cause issues?

[Turblown]

That is beautiful. Unfortunately I think I'd need one more port for an EMAP sensor lol.

Oh now you tell me...

I guess you will just have to weld them on!

[speedjunkie]

LOL well I didn't figure most others would need the two extra ports, and I'm not sure yet what the thread pitch will be anyway. Also, back then it didn't cross my mind about getting another manifold. I'm pretty happy with the one I have, but this one is awesome too.

[Turblown]

This is now closed as we exceeded the 30 deposits. We are now just waiting on the cast manifolds to arrive. We have 15 extra not sold that we are continuing this group buy, but no longer as a manifold only. A turbo, or full system in addition to the cast manifold is now required. Same pricing as the top tier discount. Please call our office for more info; 763 753 9939.

[speedjunkie]

Damn. I'm thinking about stepping up to an 8374 but I was going to source the turbo through a buddy and I don't need the other parts lol. Now I wish I'd gotten on this.

[Turblown]

The cast manifolds are available separately. Please note we are still probably 1 to 2 weeks out on these at the moment;

http://www.turbosource.com/EFR-IWG-Rx7-Turbo-Manifold-p/ts-tb-iwgmf.htm

[Fendamonky]

That is beautiful. Unfortunately I think I'd need one more port for an EMAP sensor lol.

Wouldn't that EMAP sensor be better off if it was located in the DP anyway?

I thought you ran EGT pre-turbo, and EMAP after the turbo.

[Monkman33]

Wouldn't that EMAP sensor be better off if it was located in the DP anyway?

I thought you ran EGT pre-turbo, and EMAP after the turbo.

The point is to see the back pressure before the turbo. Post turbo emap would not give any really useful information unless the exhaust is very restrictive.

[speedjunkie]

Wouldn't that EMAP sensor be better off if it was located in the DP anyway?

I thought you ran EGT pre-turbo, and EMAP after the turbo.

This is what I always thought...

The point is to see the back pressure before the turbo. Post turbo emap would not give any really useful information unless the exhaust is very restrictive.

...and this is basically what Chris Ludwig told me LOL.


I wanted to see if I need to step up in downpipe diameter, but I guess that's just a one time use anyway.

[Fendamonky]

The point is to see the back pressure before the turbo. Post turbo emap would not give any really useful information unless the exhaust is very restrictive.

Hmm... Why is that? (Sorry to derail the thread, I'm honestly curious).

[C. Ludwig]

Pressure in the manifold will be a cumulative of manifold and tail pipe pressure. It will always be higher than tailpipe pressure. If you're mapping your fuel map as a MAP v. EMAP, you'll need to know manifold pressure. Tail pipe pressure is useless for this calculation because it disregards manifold pressure. Monitoring tail pipe pressure is only useful in a sense that you want it to be as low as possible and therefore would want to know if it's relatively high.

[Fendamonky]

Pressure in the manifold will be a cumulative of manifold and tail pipe pressure. It will always be higher than tailpipe pressure. If you're mapping your fuel map as a MAP v. EMAP, you'll need to know manifold pressure. Tail pipe pressure is useless for this calculation because it disregards manifold pressure. Monitoring tail pipe pressure is only useful in a sense that you want it to be as low as possible and therefore would want to know if it's relatively high.

Interesting... Wish I didn't know that now! :rofl: I def intended to have EMAP as an input for my F88, but I don't know if I'll have space for both EGT AND EMAP bungs on both runners. :willy_nilly:

I feel like there would need to be a LOT of heat dissipation to keep from blowing out sensors if you took readings in the manifold as opposed to the DP..

Sometimes I think life would be more simple without knowledge :lol: (Ignorance is bliss and all that... lol)

[C. Ludwig]

For EMAP you need a long run of tubing to dissipate the heat before the sensor. Think Pete had some good pics of his own arrangement. AEM sells a kit with a sensor, bung, and SS tubing.

[Fendamonky]

For EMAP you need a long run of tubing to dissipate the heat before the sensor. Think Pete had some good pics of his own arrangement. AEM sells a kit with a sensor, bung, and SS tubing.

Yeah, in my minds eye I'm seeing like 10' of copper or aluminum tube that runs away from the heat source, then just coils along the firewall for like 2' until reaching sensors mounted near the wiper blade motor.

My concern with that would be the potential for a pressure drop due to the turns and distance required to cool the air enough for sensors to last a reasonable amount of time.

[C. Ludwig]

More like 24" total. You're overthinking it.

[Fendamonky]

More like 24" total. You're overthinking it.

:smilielol5::smilielol5::smilielol5:

Fair enough. :patriot:


I've had "accidents" as a result of NOT overthinking it in the past, so I figure it might be better to go with the "moar is bettar, because MOAR!" approach :suspect:


(But yeah, the 10' figure was intentionally overzealous, I wouldn't ACTUALLY try to stuff 20' of metal line in there for a pair of EMAP sensors :lol:)

[RXtacy]

:smilielol5::smilielol5::smilielol5:

Fair enough. :patriot:


I've had "accidents" as a result of NOT overthinking it in the past, so I figure it might be better to go with the "moar is bettar, because MOAR!" approach :suspect:


(But yeah, the 10' figure was intentionally overzealous, I wouldn't ACTUALLY try to stuff 20' of metal line in there for a pair of EMAP sensors :lol:)

You only really need one EMAP sensor.

[Ric Shaw]

Nice work Elliot, cast is the way to go. I have always used cast manifolds to handle heat. your design is great.

[RICE RACING]

One day, some day, I'll test this set up, hopefully sooner than later.............. 6 mother fucking months!

[shawnm565]

We have 9 Turblown BorgWarner EFR IWG Cast Manifold Turbo kits Available for sale for the FD & FC Chassis.

The Kit gives you the choice of three different size of the BorgWarner EFR IWG Series Turbo's:

EFR 7670 - $3,999.00
EFR 8374 - $4,249.00
EFR 9180/9174 $4,499.00

The kit includes the following:

* Your choice of T4 EFR 7670 IWG,8374 IWG, 9174, or 9180 IWG turbocharger
* Stainless hard line turbo cooling lines( oil feed, coolant feed/return & Flexible oil compatible heat shielded oil return line) & hardware
* 304SS TIG welded & back purged Mandrel Bent 3" V-Band downpipe with single o2 sensor bung, vband clamp and 2 bolt gasket/hardware
* 347SS Investment Cast Tapered IWG turbo manifold
* Replacement WG actuator bracket Adapter for necessary placement
* Inconel T4 Turbo Gasket, and Inconel turbo manifold studs & nuts
* Rear turbo oil return block off plate
* K&N 3.5" or 4" air filter depending upon size of the turbo selected
* 2 feet of fire wrap heat sleeve
* FD heater core hardline replacement with new hose and clamps

Please contact our Sales Manager Shawn Christenson to place your order. 763-753-9939

[TitaniumTT]

Just so everyone is aware, I plan on cleaning this thread tonight over cocktails.
Posts will be deleted
Threads will be created
Links will be added
Any issues should be directed to me via PM. But don't expect a response until Monday

[TitaniumTT]

And for anyone wishing to continue....
http://rotarycarclub.com/rotary_forum/showthread.php?t=18861

[Turblown]

We are now onto our 2nd group buy. We have 80 cast manifolds almost finished, and have tweaked the kit a little bit more to improve everything.

http://www.turbosource.com/Turblown-347-Stainless-Steel-EFR-IWG-Cast-Manifold-p/ts-gb-efriwgcast.htm

[Turblown]

We are at 13 deposits.

Also we managed some good numbers yesterday on one of our shop cars with the cast 8374 IWG kit