Why is no one using sti turbo kits? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

diss7 · 05-15-2014, 09:29 PM

Pulled my headers off yesterday while installing JDL kit, and a mate had his spare ej25 race motor sitting around. Bang, fa20 headers fit perfectly.

This led us to look at whether an OEM sti turbo setup would fit the 86. Eyeballing it up, it looks like it would. It may need some slight tweaking.
The OEM twin turbo setup from a legacy might even fit.

We're just dummying up my turbo kit now, but then taking it apart on the weekend to get ceramic coated. Am making a couple of calls today to see if I can find someone that still has their OEM sti setup, so I can see if it would fit.

No promises at this stage. Have to find a kit to borrow first.

Surely we're not the first to think of doing this.. ?

Fa20 headers on EJ25...

CSG Mike · 05-15-2014, 09:55 PM

The piping may not fit... :shrug:

JerryMichaels7 · 05-15-2014, 10:04 PM

Is that a dry sump on that ej?

The Racers Line · 05-16-2014, 12:00 AM

The up pipe would have to be different. It would need to be angled more to put the turbo near where our battery is. I believe Works was working on a kit with similar placement to the WRX's but I haven't heard about it in a long time.

Edit:

sw20kosh · 05-16-2014, 12:26 AM

Works was also trying to retain both cats for CARB approval which means the up-pipe would have to come from from after the front-pipe...and then the down-pipe from the turbo would need to run to the back. that is some convoluted exhaust routing...

The Racers Line · 05-16-2014, 12:38 AM

Quote:

Originally Posted by sw20kosh

Works was also trying to retain both cats for CARB approval which means the up-pipe would have to come from from after the front-pipe...and then the down-pipe from the turbo would need to run to the back. that is some convoluted exhaust routing...

It sounds like a good idea(carb approval), but I can't even imagine the exhaust nightmare.

diss7 · 05-16-2014, 02:42 AM

Quote:

Originally Posted by JerryMichaels7

Is that a dry sump on that ej?

Yup. He's been hassling me to dry sump the gt86 because he wants to make a kit for it, but I dont want to lose my ac. (Drifting with aircon on is boss)
Taking the oil pan off it tomorrow to put the turbo oil drain in, and some baffles. If it is still oil surging (which I suspect it will) then we're going to look at dry sumping a different way. Off the flywheel possibly.

xjohnx · 05-16-2014, 07:18 AM

Quote:

Originally Posted by diss7

The OEM twin turbo setup from a legacy might even fit.

Twin scroll, not twin turbo, right?

Xero-Limit · 05-16-2014, 07:36 AM

The header is really the biggest piece of work when it comes to making a turbo kit. The rest is much easier to fab. I can definitely see it as being a good option for a rotated kit with the battery moved.

diss7 · 05-16-2014, 07:40 AM

Quote:

Originally Posted by xjohnx

Twin scroll, not twin turbo, right?

No I meant twin turbo. There are legacys with this.

xjohnx · 05-16-2014, 07:48 AM

Quote:

Originally Posted by diss7

No I meant twin turbo. There are legacys with this.

ah, yeah i knew that they existed, just didn't think those would fit. then again i've never eyeballed it. thanks for clarifying.

Hawaiian · 05-16-2014, 11:04 AM

It looks like that works kit lost a strut tower brace. I wonder how the handling would be.

FAER · 05-16-2014, 11:10 AM

Quote:

Originally Posted by moto-mike

The header is really the biggest piece of work when it comes to making a turbo kit. The rest is much easier to fab. I can definitely see it as being a good option for a rotated kit with the battery moved.

http://www.ft86club.com/forums/showthread.php?t=19572

Like this?

05-15-2014, 09:29 PM	#1
diss7 Banned Join Date: Sep 2012 Drives: AE86, 2x GT86, TE27 Location: Christchurch NZ Posts: 1,478 Thanks: 826 Thanked 1,179 Times in 522 Posts Mentioned: 33 Post(s) Tagged: 0 Thread(s)	Why is no one using sti turbo kits? Pulled my headers off yesterday while installing JDL kit, and a mate had his spare ej25 race motor sitting around. Bang, fa20 headers fit perfectly. This led us to look at whether an OEM sti turbo setup would fit the 86. Eyeballing it up, it looks like it would. It may need some slight tweaking. The OEM twin turbo setup from a legacy might even fit. We're just dummying up my turbo kit now, but then taking it apart on the weekend to get ceramic coated. Am making a couple of calls today to see if I can find someone that still has their OEM sti setup, so I can see if it would fit. No promises at this stage. Have to find a kit to borrow first. Surely we're not the first to think of doing this.. ? Fa20 headers on EJ25...

05-15-2014, 10:04 PM	#3
JerryMichaels7 Senior Member Join Date: Mar 2013 Drives: Whiteout FRS Location: South, Ga Posts: 348 Thanks: 19 Thanked 144 Times in 80 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Is that a dry sump on that ej? __________________ life's greatest stories usually start with the words, "fuck it!".

05-16-2014, 11:04 AM	#12
Hawaiian That guy Join Date: Feb 2012 Drives: Ultramarine mt FR-S Location: chicago Posts: 2,370 Thanks: 692 Thanked 1,389 Times in 730 Posts Mentioned: 71 Post(s) Tagged: 0 Thread(s)	It looks like that works kit lost a strut tower brace. I wonder how the handling would be. __________________ Ultramarine mt FR-S P&L stage 1 turbo Prime Motoring Flex fuel Jr Tuned 506whp @17psi (e73)

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05-15-2014, 09:55 PM	#2
CSG Mike Join Date: Jul 2012 Drives: S2000 CR Location: Orange County Posts: 14,534 Thanks: 8,921 Thanked 14,180 Times in 6,836 Posts Mentioned: 966 Post(s) Tagged: 14 Thread(s)	The piping may not fit... :shrug:

05-16-2014, 12:00 AM	#4
The Racers Line Join Date: Apr 2013 Drives: FRS, Supra, Colorado D, GLC63 Location: Concord, CA Posts: 1,025 Thanks: 752 Thanked 1,515 Times in 532 Posts Mentioned: 111 Post(s) Tagged: 3 Thread(s)	The up pipe would have to be different. It would need to be angled more to put the turbo near where our battery is. I believe Works was working on a kit with similar placement to the WRX's but I haven't heard about it in a long time. Edit:

05-16-2014, 12:26 AM	#5
sw20kosh Senior Member Join Date: Jul 2012 Drives: 2013 Black FR-S Location: SF Posts: 3,030 Thanks: 881 Thanked 2,014 Times in 990 Posts Mentioned: 153 Post(s) Tagged: 1 Thread(s)	Works was also trying to retain both cats for CARB approval which means the up-pipe would have to come from from after the front-pipe...and then the down-pipe from the turbo would need to run to the back. that is some convoluted exhaust routing...

05-16-2014, 07:36 AM	#9
Xero-Limit Join Date: Nov 2012 Drives: JDL Turbo FRS, 335SC BRZ (ret) Location: Lehigh Valley, PA Posts: 932 Thanks: 368 Thanked 1,547 Times in 525 Posts Mentioned: 380 Post(s) Tagged: 6 Thread(s)	The header is really the biggest piece of work when it comes to making a turbo kit. The rest is much easier to fab. I can definitely see it as being a good option for a rotated kit with the battery moved.

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