Scion xA/xB Forced Induction Q&A
um guys...i was thinking of doing this for my setup http://img209.imageshack.us/img209/1...2008204rv5.jpg . don't wanna put turbo below the car coz too close to the ground
, anybody know how to uninstall the right driveshaft,do i have to unscrew the right absorbers to do it?thx
I had a couple of questions. I'm thinking about supercharging my xB and was wondering if i need the entire kit? I'm running right now with the TRD CAI, DC Ceramic headers and TRD Muffler. Can I just put the blower on my engine and keep my TRD intake and headers on the engine?
Thanks
Thanks
you need to say which supercharger you are going to use. My SC can not use any CAI that was not included in the kit.
the exhaust stuff is fine for any SC...if you do a turbo, you won't be able to use anything you have now...
the exhaust stuff is fine for any SC...if you do a turbo, you won't be able to use anything you have now...
my two cents...a turbo is better for you.
I have not seen upgraded torque converters, as a turbo only makes boost when you press the go pedal...it will be easier on your tranny.
the supercharger is allways making boost and could put extrain strain on the auto.
I have not seen upgraded torque converters, as a turbo only makes boost when you press the go pedal...it will be easier on your tranny.
the supercharger is allways making boost and could put extrain strain on the auto.
Downshifting won't hurt the turbo. All the wastegate does is regulate the turbine speed via controlling the volume of air flowing over the exhaust turbine. Downshifting will just open the wastegate wider, but the turbo will stay at relitively the same RPM and boost since the exhaust volume increases when you downshift.
Coincedentaly if you're in the market I do have a Greddy turbo up for sale. Just check my sig.
Coincedentaly if you're in the market I do have a Greddy turbo up for sale. Just check my sig.
Last edited by vettereddie; Jan 20, 2010 at 04:07 PM.
I can't believe I haven't seen this thread at all. Quick facts, i have a '05 manual xb w/ greddy turbo, mishimoto intercooler, custom intercooler piping, greddy oil catch can & b&m oil cooler. I would have had a greaddy bov, but the one i ordered was fake so i didn't have it installed. also right now i have the base map on the E-manage
i love the torque that i got from the turbo, but i didn't gain as much hp as i wished to have gain. the shop claims it's due to my clutch slipping out since it couldn't handle the power.
i do always have the CEL's on constantly and my error code is something along the lines of the rear O2 sensor - can't remember exact verbage
so my questions are:
did you guys have to replace your clutch with a stage 2 after installing the turbo? I know mine is going & i only have 76k on the car now so when i accelerate i go and go, then it just drops.
do you guys let the car sit in the mornings and run for several minutes to let turbo warm up before driving off? Do you let it cool down after driving on it? I do not have a turbo timer installed yet so I usually just sit in my car to let it warm up and cool down every day - anywhere from 2-5 min.
i want to up the boost from 5 to 8 if i can, so what would be involved for me to do that? i know replace the clutch is one & having a custom tune on the e-manage as well, but what else should I do?
has anyone had instances where you stomp on the gas, but the car didn't really respond? almost like it wasn't getting gas flowing instantly? this is hard to explain but sometimes in 1st & 2nd gear whenever i hit the gas pedal there is a hesitation then all the sudden the car gets up & goes.
i think that is for this post - don't get me wrong I love my turbo. it has made the car a lot more fun to drive (specially on the freeway), i love the sound (can't wait to get a bov) and love the looks when people see a box with a front mounted intercooler. so there is a lot of perks, but i have had some negative with it that i soon hope to get over. i am going to get away from the show scene so not worry so much about having a bad **** looking car, but now i want to make it a fun driving car
i love the torque that i got from the turbo, but i didn't gain as much hp as i wished to have gain. the shop claims it's due to my clutch slipping out since it couldn't handle the power.
i do always have the CEL's on constantly and my error code is something along the lines of the rear O2 sensor - can't remember exact verbage
so my questions are:
did you guys have to replace your clutch with a stage 2 after installing the turbo? I know mine is going & i only have 76k on the car now so when i accelerate i go and go, then it just drops.
do you guys let the car sit in the mornings and run for several minutes to let turbo warm up before driving off? Do you let it cool down after driving on it? I do not have a turbo timer installed yet so I usually just sit in my car to let it warm up and cool down every day - anywhere from 2-5 min.
i want to up the boost from 5 to 8 if i can, so what would be involved for me to do that? i know replace the clutch is one & having a custom tune on the e-manage as well, but what else should I do?
has anyone had instances where you stomp on the gas, but the car didn't really respond? almost like it wasn't getting gas flowing instantly? this is hard to explain but sometimes in 1st & 2nd gear whenever i hit the gas pedal there is a hesitation then all the sudden the car gets up & goes.
i think that is for this post - don't get me wrong I love my turbo. it has made the car a lot more fun to drive (specially on the freeway), i love the sound (can't wait to get a bov) and love the looks when people see a box with a front mounted intercooler. so there is a lot of perks, but i have had some negative with it that i soon hope to get over. i am going to get away from the show scene so not worry so much about having a bad **** looking car, but now i want to make it a fun driving car
I toasted my clutch at 7k...really need to swap it out asap. The car will act so much better.
af for warm up or cool down...I don't really let it warm up, but I do let it idle while I close the garage, the just go easy with it till the blue light goes out. For cool down...I do the opposite. Stop punishing it a few miles from the house then a min or so idleing before stuffing it in the garage. I feel the idle cool downs don't really work if there is no air movement through the engine bay (ie moving on the road) if you are that concered about it...add a gauge for oil temp. Then let the car run for a few mins at the lowest reading.
af for warm up or cool down...I don't really let it warm up, but I do let it idle while I close the garage, the just go easy with it till the blue light goes out. For cool down...I do the opposite. Stop punishing it a few miles from the house then a min or so idleing before stuffing it in the garage. I feel the idle cool downs don't really work if there is no air movement through the engine bay (ie moving on the road) if you are that concered about it...add a gauge for oil temp. Then let the car run for a few mins at the lowest reading.
I'm getting an injen short ram intake this week then in a few weeks i'm getting a magnaflow cat back exhaust. I want to get a turbo eventually but whats the best i should get? Both expense wise and performance.
Hey all...lots of great info in this thread...I am piecing together parts to boost my xA...and hope someone can answer a few questions for me as I decide what parts to purchase...please forgive me or at least give a link if these ?'s were answered anywhere else:
Is there is a Walbro 255 that fits in the Xa pump can?/ is it the same as the Tc pump can? Do I need 255?
What is the stock fuel pressure?
What is the stock injector flowrate?
and are the xA's map or maf based?
As with most questions, these will probably lead to other questions...so thanks for any help you give, and I will probably need more.
Is there is a Walbro 255 that fits in the Xa pump can?/ is it the same as the Tc pump can? Do I need 255?
What is the stock fuel pressure?
What is the stock injector flowrate?
and are the xA's map or maf based?
As with most questions, these will probably lead to other questions...so thanks for any help you give, and I will probably need more.
Four t2, blown_xA is probably as close as you're going to get on here for an expert on turbo on the xA. We really need to know what turbo size / HP numbers you want before answering your questions.
I can give you some basics though. With stock internals, the 1NZ is good only to about 150 WHP. The rods are notoriously week, coupled with a high stock c/r of 10.5:1, means a bad tune can cost you an engine pretty quickly. For a moderate-sized turbo, those sold in the kits, you're good for around 8 psi. At those pressures, you do not need to upgrade the fuel pump, on the injectors. The stock flow rate is 180cc I believe, start your tune by grabbing a cheap pair of tC 270cc injectors or out of a Celica, then work your way up if needed. The stock ECU is MAF based, you can add a pressure sensor to eManage blue, Ultimate and AEM F/IC have one built in.
FYI, so far I've ran a Greddy supercharger and a Greddy turbo, and hope to finish my Garrett 2252 build this summer, all in an auto xB. Currently will be on my 3rd motor, this one will be built.
I can give you some basics though. With stock internals, the 1NZ is good only to about 150 WHP. The rods are notoriously week, coupled with a high stock c/r of 10.5:1, means a bad tune can cost you an engine pretty quickly. For a moderate-sized turbo, those sold in the kits, you're good for around 8 psi. At those pressures, you do not need to upgrade the fuel pump, on the injectors. The stock flow rate is 180cc I believe, start your tune by grabbing a cheap pair of tC 270cc injectors or out of a Celica, then work your way up if needed. The stock ECU is MAF based, you can add a pressure sensor to eManage blue, Ultimate and AEM F/IC have one built in.
FYI, so far I've ran a Greddy supercharger and a Greddy turbo, and hope to finish my Garrett 2252 build this summer, all in an auto xB. Currently will be on my 3rd motor, this one will be built.
Hey everyone, please feel free to contact myself, Kareem or Mike at WORLD Racing if you have ANY questions in regards to your TURBO SCION xB1. We just launched our very own DESCENDANT turbo kit but can help ANYONE with their questions even if you have SOMEONE ELSES turbo kit! Call us at 310.533.8900
For now please let me introduce the new Descendant xB1 "Tuner Friendly" turbo kit.
Installed Pics:




*pre wastegate. Manifold in kit includes TiAL Sport MVS Gat
Products Pics:



*pre wastegate. Manifold in kit includes TiAL Sport MVS Gate
Dyno Graphs on 2005 Automatic Scion xB @ 5-6psi:


Descendant 1nz SS Tubular t3/t/4 Manifold
Descendant 1nz SS 2.5 downpipe w/ 2.5" weld flange
Descendant 1nz SS Wastegate recirculate tube
Descendant 1nz Aluminum charge pipe, intake tube & black silicone adapters
Turbonetics t3/t4 Turbocharger
TiAL Sport MVS Wastegate
Bosch BPV
AEM Air Filter
Goodridge Oil feed line & Oil drain line kit
Plus...hardware, vacuum hose & gaskets.
For now please let me introduce the new Descendant xB1 "Tuner Friendly" turbo kit.
Installed Pics:




*pre wastegate. Manifold in kit includes TiAL Sport MVS Gat
Products Pics:



*pre wastegate. Manifold in kit includes TiAL Sport MVS Gate
Dyno Graphs on 2005 Automatic Scion xB @ 5-6psi:


Descendant 1nz SS Tubular t3/t/4 Manifold
Descendant 1nz SS 2.5 downpipe w/ 2.5" weld flange
Descendant 1nz SS Wastegate recirculate tube
Descendant 1nz Aluminum charge pipe, intake tube & black silicone adapters
Turbonetics t3/t4 Turbocharger
TiAL Sport MVS Wastegate
Bosch BPV
AEM Air Filter
Goodridge Oil feed line & Oil drain line kit
Plus...hardware, vacuum hose & gaskets.
Hey guys, i read through the 1st few pages and couldnt find a answer to this question. What is the most recomended plugs to run because mine are fouled out. And where is a good place to get them?
Im turboed @ 5 psi fyi.
Thanks in advance!
Im turboed @ 5 psi fyi.
Thanks in advance!
supercharging, you can run up to 10-12 range. the boost from supercharging comes in gradual and maxes at peak rpm.
i ran 12psi on my pe300 supercharged since 2004 and never an issue with internals or such...







