What Turbo are you all using?
04-08-2006, 06:43 AM
#1
What Turbo are you all using?
im trying to get a list down of stuff im going to start buying up for my turbo project. ive read through the stickies and got a pretty good run down of what im going to need. but the one thing i didnt find much on is turbo sizing.
after reading all that a good turbo with have a .58-.68 AR. wow i guess i kinda answered my own question 
Anyways i guess it would useful you could post what turbo your using.
...off to read the dyno thread..
1. What Size turbo should I get?
There is no 1 answer or easy answer for this. It depends on a few major factors. The first being, the distance from the exhaust manifolds to the Turbo. It could be as short as 3 ft or as long as 7 ft. (Now if you do a Twin Turbo setup, things can change, but look at FAQ #2 for that answer)
The 2nd is, what do you want to do with your car? Do you want the fastest 1/4 mile time possible? Or do you want total top end power? If your turbo is large, a TO4R with a .70 a/r compressor housing and a.96 a/r turbine housing is a large turbo for us, it MAY NOT hit ANY boost until ~4000rpm. And full boost could be ~5000 rpm. So, that kind of powerband is almost useless for a daily driver or a weekend 1/4 mile racer. On the flip side, a small turbo ( T3 with a compressor housing of .42 A/R and a turbine housing of .48 a/r ) may have 1lb of boost @ 1800 rpm. And it may reach full boost by ~2200 rpm. BUT, at some point BEFORE 6500 rpm, your turbo will reach a point when boost actually DROPS OFF. You really need to know how to read a COMPRESSOR MAP to aid in this. See FAQ # 3.
This is a qoute from Jay25 "I got a T4 AR .81 turbine . That AR is pretty freaking huge. On the Freeway from a 3rd gear run that thing rocks. It pulls like a run away train. Great thats what I want. From a 2nd gear pull it sucks. From a dead stop youll get owned by most of these small cars with small turbos. A Turbine AR between .58-.68 would be an ideal AR. I am going to go with a .58AR or a .6? what ever size they make. I am going to see what type of difference that will make on my T04E BB turbo. During the winter time is awesome. There is far more research I have to do to match up a perfect setup. I am a big time Freeway runner and track runner. I have to take this to the track and see what it does with the .81 AR.
A good coparison is Bags T3 .58 AR Turbine vs my T4 .81 AR Turbine. He woops my Azzzz from a dead stop. Car is very fast the minute he gets on it. Mad props to his setup which has instant boost the min he slams the pedal to the metal. On the freeway he will pull on me instantly once again, but I reel him in within 5 secs or less and keep on pulling.
There is no 1 answer or easy answer for this. It depends on a few major factors. The first being, the distance from the exhaust manifolds to the Turbo. It could be as short as 3 ft or as long as 7 ft. (Now if you do a Twin Turbo setup, things can change, but look at FAQ #2 for that answer)
The 2nd is, what do you want to do with your car? Do you want the fastest 1/4 mile time possible? Or do you want total top end power? If your turbo is large, a TO4R with a .70 a/r compressor housing and a.96 a/r turbine housing is a large turbo for us, it MAY NOT hit ANY boost until ~4000rpm. And full boost could be ~5000 rpm. So, that kind of powerband is almost useless for a daily driver or a weekend 1/4 mile racer. On the flip side, a small turbo ( T3 with a compressor housing of .42 A/R and a turbine housing of .48 a/r ) may have 1lb of boost @ 1800 rpm. And it may reach full boost by ~2200 rpm. BUT, at some point BEFORE 6500 rpm, your turbo will reach a point when boost actually DROPS OFF. You really need to know how to read a COMPRESSOR MAP to aid in this. See FAQ # 3.
This is a qoute from Jay25 "I got a T4 AR .81 turbine . That AR is pretty freaking huge. On the Freeway from a 3rd gear run that thing rocks. It pulls like a run away train. Great thats what I want. From a 2nd gear pull it sucks. From a dead stop youll get owned by most of these small cars with small turbos. A Turbine AR between .58-.68 would be an ideal AR. I am going to go with a .58AR or a .6? what ever size they make. I am going to see what type of difference that will make on my T04E BB turbo. During the winter time is awesome. There is far more research I have to do to match up a perfect setup. I am a big time Freeway runner and track runner. I have to take this to the track and see what it does with the .81 AR.
A good coparison is Bags T3 .58 AR Turbine vs my T4 .81 AR Turbine. He woops my Azzzz from a dead stop. Car is very fast the minute he gets on it. Mad props to his setup which has instant boost the min he slams the pedal to the metal. On the freeway he will pull on me instantly once again, but I reel him in within 5 secs or less and keep on pulling.
Anyways i guess it would useful you could post what turbo your using. ...off to read the dyno thread..
04-10-2006, 02:47 PM
#4
Alot of it depends what kind of piping setup you are going to be using. You can better response with a larger A/R and a better piping setup than you can get from a smaller A/R and less optimal piping setup. If you are going with the typical reverse Y setup I'd go with between .6 and .7 A/R unless you are looking for really huge power.
04-10-2006, 04:50 PM
#5
I am very curious about how our cars perform with a 0.63 A/R T3 turbine housing.
I am researching building a turbo kit for my 96 SE and want full boost around 3k RPMs without falling off by 6.5k RPMs. Most people on here have medium to large T4 turbine housings, which is surprising to me ( I use them on a 5L V8).
I am researching building a turbo kit for my 96 SE and want full boost around 3k RPMs without falling off by 6.5k RPMs. Most people on here have medium to large T4 turbine housings, which is surprising to me ( I use them on a 5L V8).
04-10-2006, 05:57 PM
#6
Guest
Posts: n/a
Neal- Is it possible to set up a 4th gen with a turbo over the tranny and custom manifolds straight from the engine to turbo like a few 3rd gens on here? That was what I would do if I boosted my 3rd gen, and is obviously one of the best ways to do it.
~Alex
~Alex
04-12-2006, 03:46 PM
#7
Originally Posted by Alex_V
Neal- Is it possible to set up a 4th gen with a turbo over the tranny and custom manifolds straight from the engine to turbo like a few 3rd gens on here? That was what I would do if I boosted my 3rd gen, and is obviously one of the best ways to do it.
~Alex
~Alex
Yep you could do that, there is no reason to do reverse ypipe other than it is what most people do, probably a little less complicated as far as fitment too, but I don't see any reason why you couldn't do it on a 4th gen.
04-13-2006, 04:43 PM
#8
so whats the word on the PFI turbo kit. is there anything i need to keep my head up for? i was reading the turbo-kit.com web page and they said its a direct bolt on. is this true? i find it hard to believe but maybe im wrong..
04-14-2006, 07:08 AM
#9
I believe Choray911 has that kit, from what I saw it is basically a direct bolt on. Not sure about the intercooler section though, I think you may have to cut at least to get piping from intercooler to throttle body.
04-14-2006, 10:39 AM
#11
Originally Posted by DJ Technischer
Hey look this guy asked what turbo are you guys using , Why hasent he been hit with the , DO research , Kinda unfair if you ask me.
04-14-2006, 11:00 AM
#12
Originally Posted by Blu←
So did you not see what he quoted in his first post? Thats called a form of research if you can't comprehend it. You however just pop on and say should I buy a t3/t4 turbo y0!!!111one
04-14-2006, 12:32 PM
#16
Originally Posted by DJ Technischer
And i get called a noob just because i dident speicfy what t3/t4 hybrid i was talking about.. T3/T04E .50 a/r , my bad....
04-14-2006, 09:51 PM
#18
Originally Posted by MaxInProgress
sean what kinda numbers are you looking at?
04-15-2006, 06:28 AM
#19
Has anyone looked at this kit? http://www.prostreetonline.com/buy/t...o_kits/nissan/
Im guessing that the T25BB turbo is to small for our car. Any opinons
Im guessing that the T25BB turbo is to small for our car. Any opinons
04-15-2006, 10:57 AM
#21
I believe on those TSI kits they build them to only run off 1 manifold, hence the smaller turbo.
Kinda like 300zx just one of their turbos won't do so they are twin turbos which does it decent. On that site the only difference is one has a bb turbo. And if you look at the pricing the PFI kit base model is still more cause of using both manifolds like it should. I've nenver actually heard of anyone buying the TSI kit and installing it, maybe the OTs can chime in. In the long run it maybe less expensive to build your own kit and comprise it of the parts and features you want.
Kinda like 300zx just one of their turbos won't do so they are twin turbos which does it decent. On that site the only difference is one has a bb turbo. And if you look at the pricing the PFI kit base model is still more cause of using both manifolds like it should. I've nenver actually heard of anyone buying the TSI kit and installing it, maybe the OTs can chime in. In the long run it maybe less expensive to build your own kit and comprise it of the parts and features you want.
04-15-2006, 04:45 PM
#22
Originally Posted by sean05
im trying to get a list down of stuff im going to start buying up for my turbo project. ive read through the stickies and got a pretty good run down of what im going to need. but the one thing i didnt find much on is turbo sizing.
after reading all that a good turbo with have a .58-.68 AR. wow i guess i kinda answered my own question Anyways i guess it would useful you could post what turbo your using.
...off to read the dyno thread..
after reading all that a good turbo with have a .58-.68 AR. wow i guess i kinda answered my own question
Anyways i guess it would useful you could post what turbo your using. ...off to read the dyno thread..
http://forums.maxima.org/showthread.php?t=466769
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