Anyone know of any other twin turbo setups
 

Is there any other Twin Turbo setups besides the BNR's stage 3's.......

Thanks

99 spec twins. quicker spool.

And that's pretty much it.

Dave

I saw a while back a setup which used a twin turbo setup, one that would work sequential, I think the primary turbo is smaller than the secondary turbo for quicker spool up.... Which pretty much is a sequential twin turbo setup.

That would be a custom setup.

That's been done before, if you have the dough.

knightsport?

whats wrong with BNR stage 3's?

The setup I saw was a KIT and for the RX7...

$2300 for about 20rwhp just dosent seem worth it, and I like how the sequential setup works compared to a single with LAG....

haha 20hp? Well if you dont upgrade anything else on the car you can't run much more than 10lbs of boost anyway, so what do you expect? To get power out of the car safely you need to upgrade the cooling system, fuel system, turbos, and possibly rebuild and port the motor... People have made over 420hp on the BNR stage 3's with the correct supporting mods. Sounds to me like you need to do some basic system upgrades before you try and start upgrading turbos. This isn't a vr4 or 300z where you can slap on bigger turbos, turn up the boost and be done with it.

EDIT:

I'm not sure how familiar you are with the FD, but it sounds like you just want to upgrade the turbo kit and make big power. You must realize that every turbo kit for the FD, whether its BNR stage 3 twins, or a single turbo kit is going to cost around $2500-3500, and if thats your ONLY mod, you won't be making much power and you'll blow the motor. To support a turbo upgrade you need a $500-1000 fuel system, at least $1000-2000 cooling system upgrade, ignition, etc etc etc to really crank up the boost and make power and make it reliably.

You can run bnr's sequentially. If I understand, the only thing that changes is the CHRA's and machining of the housings to accept different cartridges.

Hopefully goodfella will drop in and debunk your 20 whp predispositions.

I'm not sure how familiar you are with the FD, but it sounds like you just want to upgrade the turbo kit and make big power. You must realize that every turbo kit for the FD, whether its BNR stage 3 twins, or a single turbo kit is going to cost around $2500-3500, and if thats your ONLY mod, you won't be making much power and you'll blow the motor. To support a turbo upgrade you need a $500-1000 fuel system, at least $1000-2000 cooling system upgrade, ignition, etc etc etc to really crank up the boost and make power and make it reliably.[/QUOTE][/COLOR]

I have done SEVERAL upgrades already:Full exhaust with HKS catback, hks RS intake,Greddy FMIC, koyo rad,hks twinpower,unorthadoz pulleys,fuel pump,eng. management, ported out manifolds and wastegate, i have all supporting gagues, wideband,ect. ect. and IM very much familiar with the RX7's, ive done alot of research on the cars before buying one, I just want more power and i cant make more than 350rwhp if that with the stock twins and i want something like 500+HP and BNR's cant do that...... Dont take me wrong i like the BNR's just cant support the hp that i want.

Well then you should be looking at a single turbo setup. There are several 500+hp cars on this forum, go check out the Single Turbo forum section. There are probably only a handful of people on this forum that have a working upgraded twin-turbo car, and they're not doing any better than the single turbo cars. I know who a few of them are, but I'll let them chime in if they want. Just go single, its easier and cheaper than twins.

Goodfella seemed to make 400HP with the bnr's and he wasnt complaining

No he didnt, BUT he wanst looking at making 500+hp like I am, and im not sure but i think he doesnt even have those anymore, I think i read somewhere that he wanted more HP and went a different route.(i think)

I understand what your saying, but the thing is that I know of others that have a single turbo and have great hp but with LAG, and i love the way that i can get boost at 3k other that 5k on a single.

Goodfella did make about 420 on his BNR's and is now running a 500r turbo I believe. I'm not sure if he switched because the BNR's couldn't handle 500+ or just because he wanted to go single, but maybe he can chime in... *Paging Rich*

Anyway, I'm sure most of the single turbo guys would love to have boost at 3k instead of 5k too, but with this car it's kind of a trade off you have to make. If you want to try and engineer and upgraded twin kit that will give you the best of both worlds, (I would love to see some more people try it) you'll be spending a ton of money on trial and error simply because there are probably only a handful of cars in the world (japan included) that are running something similar to what you want, and they're probably almost all one-off jobs.

I think if you're serious about building a twin kit, you could PM Howard Coleman on the forum here, he's running twin t04s turbos (i think) or you could check out Kiwi-RE in New Zealand and see if they have any experience with making a twin-turbo manifold and hardware. If anybody has done it before, they have.

Ill pm them, Thanks very much for the info.:icon_tup:

Bump.....

There's no pre-made sequential "kit" that will make 500rwhp.

Quoted for Truth.

Okay maybe not a sequential kit but a setup that uses a smaller primary turbo and larger secondary turbo......I guess these only come in custom setups is just I swear i saw one for the 3rd gen a WHILE back when i was researching on the RX7's that they were making as a "kit"

Well thanks everyone for your Input.....:icon_tup:

There was a non-seq kit that they were developing but I haven't seen any further progress recently. (https://www.rx7club.com/single-turbo-rx-7s-23/twin-gt28r-turbo-kit-pics-387757/) I don't know of any kits that are seq twins other than the two posted above. Good luck

Edit: They are the same size turbos but are a interesting read on how they allegedly spool faster than a comparative single turbo.

THATS THE KIT!!! I saw that about a year ago, I thought it was the RX7store but never saw it on thier site.....

Thanks man.....:icon_tup:

Yeah no problem. I saw it and was very interested in the beginning. I do not know what happened or if they even produced more than one.