AEB Unitronic STAGE 3 BT 440CC
#1
11-12-2012, 09:02 AM
AEB Unitronic STAGE 3 BT 440CC
Am thinking of going with unitronic bt 440cc for the AEB engine when i get back from vacation my question is do i have to run a Gt28r turbo? or can i run another turbo on that file if so which one?
reason for asking is because i think the gt28r turbo is a little over price for what it really is, i don't mind gt30 gt35 etc etc but am sure it involves more work and i wish to start with this 440cc file if possible.
any input to orientate me.
reason for asking is because i think the gt28r turbo is a little over price for what it really is, i don't mind gt30 gt35 etc etc but am sure it involves more work and i wish to start with this 440cc file if possible.
any input to orientate me.
#4
11-12-2012, 10:51 AM
ok cool so when you say any similar does that mean it can be close to specs or doe sit have to be identical . and ill do some research as well but thanks for answering the main question.
#6
11-12-2012, 03:04 PM
The GT2560R is very similiar to the GT28RS but has a smaller faster spooling turbine and is a lot cheaper if you know where to look. You can pick them up for around $700-$800.
The compressor is 46.5mm inducer and 60mm exducer where the GT28RS is 47.2mm inducer and 60mm exducer. The GT2560R is the turbo used on the S15 Silvia and comes with ball bearings. They have been proven at 350whp in the Silvia which should equate to 300awhp in an A4 without any major sacrifice of spool.
Outside this turbo I would look at T3T4 50 trim from precision or Comp or whatever manufacture you choose and go with a stage 2 turbine which will give you the best spool and not a major loss of top end flow. The Stage 3 turbine will have more hp potential (slightly) but will spool slower in comparison to the stage 2.
The compressor is 46.5mm inducer and 60mm exducer where the GT28RS is 47.2mm inducer and 60mm exducer. The GT2560R is the turbo used on the S15 Silvia and comes with ball bearings. They have been proven at 350whp in the Silvia which should equate to 300awhp in an A4 without any major sacrifice of spool.
Outside this turbo I would look at T3T4 50 trim from precision or Comp or whatever manufacture you choose and go with a stage 2 turbine which will give you the best spool and not a major loss of top end flow. The Stage 3 turbine will have more hp potential (slightly) but will spool slower in comparison to the stage 2.
#7
11-12-2012, 08:16 PM
The GT2560R is very similiar to the GT28RS but has a smaller faster spooling turbine and is a lot cheaper if you know where to look. You can pick them up for around $700-$800.
The compressor is 46.5mm inducer and 60mm exducer where the GT28RS is 47.2mm inducer and 60mm exducer. The GT2560R is the turbo used on the S15 Silvia and comes with ball bearings. They have been proven at 350whp in the Silvia which should equate to 300awhp in an A4 without any major sacrifice of spool.
Outside this turbo I would look at T3T4 50 trim from precision or Comp or whatever manufacture you choose and go with a stage 2 turbine which will give you the best spool and not a major loss of top end flow. The Stage 3 turbine will have more hp potential (slightly) but will spool slower in comparison to the stage 2.
The compressor is 46.5mm inducer and 60mm exducer where the GT28RS is 47.2mm inducer and 60mm exducer. The GT2560R is the turbo used on the S15 Silvia and comes with ball bearings. They have been proven at 350whp in the Silvia which should equate to 300awhp in an A4 without any major sacrifice of spool.
Outside this turbo I would look at T3T4 50 trim from precision or Comp or whatever manufacture you choose and go with a stage 2 turbine which will give you the best spool and not a major loss of top end flow. The Stage 3 turbine will have more hp potential (slightly) but will spool slower in comparison to the stage 2.
#8
11-12-2012, 09:09 PM
I was referring to running it on E85 which "should" net you 300awhp. For whatever reason I ommitted that but it was in my head when I posted it. You should still be able to get 275-280awhp from it but then again I am expecting the 280awhp with supporting mods from my K04 setup I am working on.
Just a FYI- the GT28RS would be one of my last choices in the world in regards to performance and cost. There are so many other options that will yield similiar or better hp and cost as much as $800 less. Even some options that will make 150awhp more and still cost $700 less and yes these are NAME brand options. Think of what you can do with $700.....
Actually you might be able to get the 300awhp with the GT2560R by using the much larger turbine housing that is availible which .84AR. With t you would lose about 500 RPM's of sppol but gain that 500 RPMs on the top end. Too make more hp you need to sustain torque and keep the revs going. Too give you an idea if you are making 250awlb ft at 7000 RPM 333 awhp. If you only made 250awlb ft at 6000RPM you would be making 285 awhp. That is why F1 cars make so much hp from such small motors; from revving the absolute $h!t out of them....
Just a FYI- the GT28RS would be one of my last choices in the world in regards to performance and cost. There are so many other options that will yield similiar or better hp and cost as much as $800 less. Even some options that will make 150awhp more and still cost $700 less and yes these are NAME brand options. Think of what you can do with $700.....
Actually you might be able to get the 300awhp with the GT2560R by using the much larger turbine housing that is availible which .84AR. With t you would lose about 500 RPM's of sppol but gain that 500 RPMs on the top end. Too make more hp you need to sustain torque and keep the revs going. Too give you an idea if you are making 250awlb ft at 7000 RPM 333 awhp. If you only made 250awlb ft at 6000RPM you would be making 285 awhp. That is why F1 cars make so much hp from such small motors; from revving the absolute $h!t out of them....
Last edited by zandrew; 11-12-2012 at 09:14 PM.
#9
11-13-2012, 05:37 AM
well i been looking into the GT2860,GT2870 the Gt30 Gt35 all those look really good specially the gt30 and 35 those i think are good.
I did some research and defiantly i don't want a oil cooled only turbo i want water/oil cooled, i am going with some rod's H beam unless something else comes up and i also seen some good turbos with that V adapter thing or what ever its called that looks like a good idea and easy to work with.
ill keep looking but i like what you guys mention gotta write all this crap down so i wont forget lol when i get back
save it on Microsoft word pad lol
I did some research and defiantly i don't want a oil cooled only turbo i want water/oil cooled, i am going with some rod's H beam unless something else comes up and i also seen some good turbos with that V adapter thing or what ever its called that looks like a good idea and easy to work with.
ill keep looking but i like what you guys mention gotta write all this crap down so i wont forget lol when i get back
save it on Microsoft word pad lol
#10
11-14-2012, 07:48 AM
First thing you need is a goal. Without one your flying blind. It would be silly to buy a turbo that you don't really need and end up with a costly setup that may not suit your needs. Example buying a large turbo that makes big hp but has poor drivability and it being a daily driver. Its more then just buying parts, its buying the right parts.