GT28RS BB Single.
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GT28RS BB Single.
Would this be a good turbo for a custom single setup? I can get it with or without the internal wastegate. I am just curious because I know on Honda's B16A2 it makes full boost at about 2500 to 3000 rpms, depending on the amount of boost you are trying to make. Says it is good for up to 350HP. I am looking for something ball bearing to keep down the lag. Thanks.
-Chris
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Compressor Map
-Chris
GT28RS
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Compressor Map
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Ok wow, good to know. I am looking definetely for a BB turbo to keep down on lag. I won't be running more than 12 PSI, I want quick response and good power for the 12 PSI, what turbo would you guys recommend?
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I guess it's more important to know what type of horsepower you're shooting for... It's easy to say all you want is 12 psi but 12 psi on one turbo could be equivalent to 15 on another.
-Nic
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Hmm, what motor/car? With an FD (13brew), using the stock twins gives greatest response and is still able to achieve 300rwhp... With an FC(13bt), and upgraded compressor-side and stock hotside should give the best trade off between response and your power goal.
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This would be for an FD, I know the stock twins also have a fairly restrictive exhaust manifold, and can create a lot of heat. I don't really want any adverse affects from that.
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True, but having such a small turbine housing (as the GT28RS does) would also create that heat and would also choke the top-end.
I've heard from several FD owners that the Apexi single kit offers spoolup almost as great as stock. Also, the GT35/40 supposedly spools about as quickly. Both have capability for almost 400rwhp.
I've heard from several FD owners that the Apexi single kit offers spoolup almost as great as stock. Also, the GT35/40 supposedly spools about as quickly. Both have capability for almost 400rwhp.
#12
I've heard from several FD owners that the Apexi single kit offers spoolup almost as great as stock. Also, the GT35/40 supposedly spools about as quickly. Both have capability for almost 400rwhp.
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Hell if all you want is 300rwhp you can EASILY do that with stock twins! I dyno'd 298rwhp with the following mods:
Apex'i twin intakes
Decent sized streetport
HKS DP
Racing Beat dual tip CB
Those were the only mods I had done. Stock injectors, IC, fuel pump, ECU! It's very very easy to pull 300rwhp out of an FD. That's something you might wanna look at. And with the stock twins being sequential you spool really fast as you already know.
Now if your heart is set on going single, I'd suggest the Apex'i RX6. That seems to be what you're shooting for. The GT35R would also be a great choice seeing as it has a little more potential for later on when you get rwhp hungry like the rest of us.
Just my .02 though. Best of luck to you bro.
Zach
Apex'i twin intakes
Decent sized streetport
HKS DP
Racing Beat dual tip CB
Those were the only mods I had done. Stock injectors, IC, fuel pump, ECU! It's very very easy to pull 300rwhp out of an FD. That's something you might wanna look at. And with the stock twins being sequential you spool really fast as you already know.
Now if your heart is set on going single, I'd suggest the Apex'i RX6. That seems to be what you're shooting for. The GT35R would also be a great choice seeing as it has a little more potential for later on when you get rwhp hungry like the rest of us.
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Mine didn't have a problem with creating heat. Like I said, I was on stock boost with a stock radiator and had 0 heating problems. Granted everybody wants to be able to say that they have a single turbo FD, but with those whp goals, I just don't see the point in it. If nothing else send the twins off to BNR for a stage 2 rebuild. That will help with some of the heat concerns and give you fast spool up times. Or go with the stage 3 twins in non-sequential mode. Then you get more power with the same spool up as stock sequentials. ![Big Grin](https://www.rx7club.com/images/smilies/biggrin.gif)
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Sounds pretty good, I'll stick with the stockers for now. Just I have seen the affects of the heat on the stock manifold, including cracking etc. How long will a set of twins last at 300rwhp? Especially during road racing? Which is what I will be doing, HPDEs, etc.
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That's what I thought as well. I just personally don't see the point in dropping $5K minimum for what you can do with stockers. I am in agreement with you though Broken09.
Zach
Zach
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Well if I can do it with stockers than so be it, I will. Just wanted to make sure there will be no adverse effects during racing. Thanks.
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That's why I suggested sending them off to BNR Supercars. That way they will be more reliable. Plus it's not very expensive for a stage 2 rebuild. That and a nice SMIC will net you all the power that you are wanting plus some if you so desire. Where in Nor Cal are you? I'll be moving to the Sacramento area this fall. We can hook up and discuss things when my fiancee(will be wife by then) get there if you'd like.
Zach
Zach
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