T28 a/r .80
02-13-2003, 01:21 AM
#1
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Thread Starter
Join Date: Feb 2003
Posts: 122
T28 a/r .80
I'm planning to get a t28 a/r.80 off a sr20det. I will be mounting it in a b16a. Does anyone know when this turbo will start to spool? What RPM? Is it the right size for 6-12 psi of boost? What is the max boost of this turbo?
Thanks in advance!!!
Thanks in advance!!!
02-13-2003, 11:56 PM
#7
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Join Date: Jan 2003
Posts: 42
Re:T28 a/r .80
Whoa, whoa, whoa. I usually just troll this site, but you guys are really misinformed here. First of all is that a/r for the turbine, or the compressor? IMO, either one is going to be too small for a B16. This turbo is smaller than a T3. I will be going with a .86 a/r t25 turbine on my B20, which flows alot LESS than a B16. For a B16, I would think you would need a T25 exhaust a/r of at least .86, and a T3/T04B compressor. The unit from a Pulsar GTi-R would be the only off the shelf unit available to you with these specs. It will in no way be too big. If anything it will be too small. If you are looking for quick spool/low boost go with a T28(t25 turbine/t3 compressor hybrid) If the unit has a .80 a/r on the compressor, it is a straight T25. Probably from a bluebird. Too small, IMO. DO more research.
02-14-2003, 01:47 AM
#8
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Join Date: Jan 2003
Posts: 42
Re:T28 a/r .80
Absolutely not. Please don't misinform people. You aren't even stating which a/r you think is too big. The a/r that matters most would be the turbine/exhaust housing. I think you may be confused by the usual T3 Exhaust housing a/r categories:
.49=low end/falls off .63=midrange/balance .80=top end/lag These are for T3 units. Completely unrelated to T25 units.
Consider a B16 is 1.6 liters and has a higher compression and much better VE than any SR20 engine, it also has about 1000 more rpm to work with. This turbo is nicely sized for an SR20, but would be on the verge of too small for a B16. To put it simply, a B16 produces much more exhaust energy than an SR20, and can easily spool this turbine. You would not want to go smaller than .86 a/r on the turbine side with a T25 turbine housing. As for compressor sizing. Usually, the bigger the better within reason, and taking your space/boost requirements into consideration. If you do not understand all of this, please go do more research. If you are done disagreeing with me, I will go back to lurking in the shadows. Just know I am always ready to jump out when people need T25 info. I know too much... Don't make me get ABAZ in here...
.49=low end/falls off .63=midrange/balance .80=top end/lag These are for T3 units. Completely unrelated to T25 units.
Consider a B16 is 1.6 liters and has a higher compression and much better VE than any SR20 engine, it also has about 1000 more rpm to work with. This turbo is nicely sized for an SR20, but would be on the verge of too small for a B16. To put it simply, a B16 produces much more exhaust energy than an SR20, and can easily spool this turbine. You would not want to go smaller than .86 a/r on the turbine side with a T25 turbine housing. As for compressor sizing. Usually, the bigger the better within reason, and taking your space/boost requirements into consideration. If you do not understand all of this, please go do more research. If you are done disagreeing with me, I will go back to lurking in the shadows. Just know I am always ready to jump out when people need T25 info. I know too much... Don't make me get ABAZ in here...
02-14-2003, 04:31 AM
#10
0.5 BAR
Thread Starter
Join Date: Feb 2003
Posts: 122
Re:T28 a/r .80
The guy told me its a t28 AR.80 from a nissan motor sr20det. Is it really or does it come with a t25 AR.80 compressor? either of the two, what RPM will it start to spool? will that be bigger than a tdo5 14b?
