Twin Scroll Turbo kits? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Pyrefyre · 03-28-2014, 06:16 PM

I have been trying to find a twin scroll turbo kit. So far the only ones I could find are the Crawford Performance, which is an expensive all inclusive kit and JDL which looks like a tuners kit. Are there any other twin scroll kits out there that are worth looking at?

yomny · 03-28-2014, 06:20 PM

I think that's about it, thought JDL was the only one. I know full race was working on something and they have twin scroll stuff not sure if they're going that route for us.

evo4g63 · 03-28-2014, 06:21 PM

Quote:

Originally Posted by Pyrefyre

I have been trying to find a twin scroll turbo kit. So far the only ones I could find are the Crawford Performance, which is an expensive all inclusive kit and JDL which looks like a tuners kit. Are there any other twin scroll kits out there that are worth looking at?

You have already mentioned the best one @JDLAutoDesign

Coheed · 03-30-2014, 12:49 AM

Unless you are willing to go really big, twinscroll is mostly a waste of money.

jamesm · 03-31-2014, 02:51 PM

spool isn't much of a problem with these cars to begin with. you'll end up limiting boost electronically down low for traction regardless. not much value in a twin-scroll setup over a normal exhaust housing, unless you're going really big.

King Tut · 03-31-2014, 02:56 PM

Quote:

Originally Posted by jamesm

you'll end up limiting boost electronically down low for traction regardless.

I won't be. The throttle pedal isn't an on/off switch.

I can't wait to see what Full-Race has to offer. Mostly the intercooler piping routing and whether they retain the OEM fans.

jamesm · 03-31-2014, 03:02 PM

Quote:

Originally Posted by King Tut

I won't be. The throttle pedal isn't an on/off switch.

I can't wait to see what Full-Race has to offer. Mostly the intercooler piping routing and whether they retain the OEM fans.

good luck with that

. without traction control on finding traction with 18psi coming on at <4krpm is futile, at least for me. everything is fine up to about 12-14psi, 300-350whp. above that, it becomes uncontrollable wheelspin without smart (racerom) traction control or slower boost ramping.

King Tut · 03-31-2014, 03:11 PM

Quote:

Originally Posted by jamesm

good luck with that

. without traction control on finding traction with 18psi coming on at <4krpm is futile, at least for me. everything is fine up to about 12-14psi, 300-350whp. above that, it becomes uncontrollable wheelspin without smart (racerom) traction control or slower boost ramping.

I wouldn't be running that much boost, but I want it to hit as soon as possible and hold as long as possible. I still think there is value in a proper twin scroll setup.

jamesm · 03-31-2014, 03:23 PM

Quote:

Originally Posted by King Tut

I wouldn't be running that much boost, but I want it to hit as soon as possible and hold as long as possible. I still think there is value in a proper twin scroll setup.

at lower boost you should be fine... but once you start making big power traction becomes the limiting factor. you'll find that max boost at 3.5k isn't as fun as it seems on paper.

KAR · 03-31-2014, 03:27 PM

i upgraded my radiator to the Koyo with Carolina dyno fan shroud

SkAsphalt · 03-31-2014, 03:47 PM

Quote:

Originally Posted by KAR

i upgraded my radiator to the Koyo with Carolina dyno fan shroud

WHAAT

Ironsquid · 03-31-2014, 04:20 PM

I'm going to say that twin-scroll is definitely not needed. Just thinking about all the extra work involved and extra space needed to twist/roll/weld the header primaries and flanges.

Honestly man, I don't think there's any sort of "racing" that would require you to have more power below 4k than what a non-twin scroll could offer.

I would be more interested in a VGT kit...

KAR · 03-31-2014, 04:38 PM

Quote:

Originally Posted by SkAsphalt

WHAAT

Going with Full-Race stuff and I upgraded my radiator with Carolina dyno shrouds for clearance

Crawford Performance · 03-31-2014, 05:12 PM

Quote:

Originally Posted by Pyrefyre

I have been trying to find a twin scroll turbo kit. So far the only ones I could find are the Crawford Performance, which is an expensive all inclusive kit and JDL which looks like a tuners kit. Are there any other twin scroll kits out there that are worth looking at?

We sell our kit "all inclusive" or just the turbo kit, we give you the choice. And for those who are saying that twin scroll has no benefits in this car... really?
245 pound feet of torque at 2100 RPM is just plane awesome.

03-28-2014, 06:20 PM	#2
yomny Senior Member Join Date: Jul 2012 Drives: 2013 FRS Whiteout Location: MIA Posts: 1,545 Thanks: 557 Thanked 469 Times in 340 Posts Mentioned: 33 Post(s) Tagged: 5 Thread(s)	I think that's about it, thought JDL was the only one. I know full race was working on something and they have twin scroll stuff not sure if they're going that route for us. __________________ GTX2867R, moto-tuned , tomei op , motiv fp , Invidia Q300 ti , Rota titan 17x9 +42 , nt555 255/40 , ST coilovers w/cascam , Hotchkis sways

03-31-2014, 04:20 PM	#12
Ironsquid King of Kiwi Palace Join Date: Aug 2012 Drives: Faster than you Location: Everywhere Posts: 585 Thanks: 184 Thanked 578 Times in 264 Posts Mentioned: 33 Post(s) Tagged: 0 Thread(s)	I'm going to say that twin-scroll is definitely not needed. Just thinking about all the extra work involved and extra space needed to twist/roll/weld the header primaries and flanges. Honestly man, I don't think there's any sort of "racing" that would require you to have more power below 4k than what a non-twin scroll could offer. I would be more interested in a VGT kit... __________________

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03-30-2014, 12:49 AM	#4
Coheed Senior Member Join Date: Jun 2012 Drives: DGM BRZ Limited Location: Seattle Posts: 813 Thanks: 209 Thanked 225 Times in 157 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Unless you are willing to go really big, twinscroll is mostly a waste of money.

03-31-2014, 02:51 PM	#5
jamesm Banned Join Date: Mar 2013 Drives: 2013 FR-S Location: Orlando, FL Posts: 2,929 Thanks: 1,166 Thanked 2,293 Times in 1,180 Posts Mentioned: 313 Post(s) Tagged: 4 Thread(s)	spool isn't much of a problem with these cars to begin with. you'll end up limiting boost electronically down low for traction regardless. not much value in a twin-scroll setup over a normal exhaust housing, unless you're going really big.

03-31-2014, 03:27 PM	#10
KAR Senior Member Join Date: Jul 2012 Drives: Whiteout 6spd Location: NJ Posts: 489 Thanks: 21 Thanked 163 Times in 100 Posts Mentioned: 17 Post(s) Tagged: 1 Thread(s)	i upgraded my radiator to the Koyo with Carolina dyno fan shroud

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