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This information should really be required reading for anyone that wants to increase the boost on a 2JZ-GTE via a boost controller instead of just relying on a bigger exhaust. The sequential system is very complicated and it took me a few read throughs to work out what was really going on. I'd suggest reading how to test the VSVs and testing them before installing a boost controller.
Here!
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2JZ-GTE Sequential Turbo Operation How it works and how to increase boost safely
#1
- Technical Moderator
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- Joined: 24-August 05
- Location:Adelaide
- Car:1998 JZA80 RZ
- Induction:Turbo
- Color:Black!
- Power (rwkw):233
Posted 14 April 2011 - 09:45 AM
#2
- APU++ Supra
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Interests:Anything that goes fast, cars, jetski, motorbikes.
DIY stuff on the supra. nerdy electronics - Car:1994 Supra RZ TT 6 Speed
- Induction:Twin Turbo
- Color:Silver
- Power (rwkw):254
Posted 14 April 2011 - 03:14 PM
I pulled this off the net when I bought mine, EVERYBODY that has a TT should read this just to get a better understanding. very helpful post
#3
- SAS Secretary & Motorsport Events Coordinator
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- Group: Admin
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- Location:Adelaide
- Car:RZ+
- Induction:twin turbo
- Color:silver
- Power (rwkw):265rwkw ML / 287rwkw DD
Posted 14 April 2011 - 04:36 PM
having my old turbos stuffed and mounted on a display would also be helpful to see the setup :lol:
#4
- Club Treasurer
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Interests:Movies (own a video store at McLaren Vale pop in say Gday)
Cars all types as long as they go Hard and Fast
My Wife and 2 Girls (Proud Daddy) - Car:1993.5 Supra RZ TT 6 Speed EURO Headlights
- Induction:TT Hybrids
- Color:Red
- Power (rwkw):287
Posted 14 April 2011 - 07:15 PM
Yeah its pretty useful info once you get your head around it.
I run TT mode now so not as many dramas. Boost comes on later but dont have that little dip when 2nd turbo kicks in. That issue has caught many a novice out at the wrong time, especially the auto's. I even got caught on a wet road going around a corner in 3rd gear. Revs built up to 3500rpm and all of a sudden 2nd turb fired up and I did a quick lane change. Just lucky no traffic was coming towards me :sweat: This of course was when I ran sequential.
There have been a few people muck around with bleed valves and boost controllers to smooth out the dip. Supra is certainly nicer down low with sequential as you are on boost at 1800rpm instead of 2500rpm like I am now.
Horses for courses I guess.
I run TT mode now so not as many dramas. Boost comes on later but dont have that little dip when 2nd turbo kicks in. That issue has caught many a novice out at the wrong time, especially the auto's. I even got caught on a wet road going around a corner in 3rd gear. Revs built up to 3500rpm and all of a sudden 2nd turb fired up and I did a quick lane change. Just lucky no traffic was coming towards me :sweat: This of course was when I ran sequential.
There have been a few people muck around with bleed valves and boost controllers to smooth out the dip. Supra is certainly nicer down low with sequential as you are on boost at 1800rpm instead of 2500rpm like I am now.
Horses for courses I guess.
#5
- Technical Moderator
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- Group: Moderators
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- Car:1998 JZA80 RZ
- Induction:Turbo
- Color:Black!
- Power (rwkw):233
Posted 15 April 2011 - 09:37 AM
Darren, on 14 April 2011 - 07:15 PM, said:
Yeah its pretty useful info once you get your head around it.
I run TT mode now so not as many dramas. Boost comes on later but dont have that little dip when 2nd turbo kicks in. That issue has caught many a novice out at the wrong time, especially the auto's. I even got caught on a wet road going around a corner in 3rd gear. Revs built up to 3500rpm and all of a sudden 2nd turb fired up and I did a quick lane change. Just lucky no traffic was coming towards me :sweat: This of course was when I ran sequential.
There have been a few people muck around with bleed valves and boost controllers to smooth out the dip. Supra is certainly nicer down low with sequential as you are on boost at 1800rpm instead of 2500rpm like I am now.
Horses for courses I guess.
I run TT mode now so not as many dramas. Boost comes on later but dont have that little dip when 2nd turbo kicks in. That issue has caught many a novice out at the wrong time, especially the auto's. I even got caught on a wet road going around a corner in 3rd gear. Revs built up to 3500rpm and all of a sudden 2nd turb fired up and I did a quick lane change. Just lucky no traffic was coming towards me :sweat: This of course was when I ran sequential.
There have been a few people muck around with bleed valves and boost controllers to smooth out the dip. Supra is certainly nicer down low with sequential as you are on boost at 1800rpm instead of 2500rpm like I am now.
Horses for courses I guess.
I know your situation is different, but I ran the stock twins in parallel mode for a while a few years ago and it was shit. No boost below 4k rpm and loud droney exhaust below 4k rpm also. I'd take a properly working sequential system over parallel twins any day ;)
#6
- Technical Moderator
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- Power (rwkw):233
Posted 15 April 2011 - 09:38 AM
ultra_supra, on 14 April 2011 - 04:36 PM, said:
having my old turbos stuffed and mounted on a display would also be helpful to see the setup :lol:
Yeah, it would. Hoping I can pull out the core from your #1 this weekend and put in my old busted core, then you can have it back ready for mounting ;)
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