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-   -   Border Racing Twins (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/border-racing-twins-282923/)

Speedworks 03-15-04 03:10 AM

Twins
 
http://border-racing.com/border-web-...turbo-re13.htm

Somebody got this kit?

Pro's & con's if possible


thx

DaiOni 03-15-04 08:09 AM

the twin apexi AX turbos? It says "twin turbo response with big single turbo", I'd like to know if it works as well!

Personally, I think the knightsports twin kit (about the same size as the stockers but over 400ps) is a better idea for a street car - but I guess it depends on just how much power you want.

artguy 03-15-04 09:38 AM

i dont think the little rotary with normal ports will push enough exhaust to spool two large turbos fast enough.

no one has it here. youll get lag up the arse.


j

Sickass7 03-15-04 10:17 AM

DaiOni,
Tell me that is not your FD covered in snow!

EVLFD 03-15-04 10:18 AM

nice looking kit though:D

Sickass7 03-15-04 10:19 AM

Poor 7!

NewbernD 03-15-04 02:35 PM

The manifold in their single kit looks like what the OBX's and such were coppied from. Same proportions, huge primaries, turbo location...

DaiOni 03-15-04 05:58 PM

"Tell me that is not your FD covered in snow!"

sure is! hey, it's hard enough to get a free parking spot in japan - let alone have a garage. What's worse is apparently there is some problem at the moment with dust floating over from china - so everytime it rains (then dries) my car looks amazingly mouldy :( Poor FD indeed...

GoRacer 03-15-04 06:11 PM

The kit is beautiful and I doubt any one in the US has it because when I priced it a year ago it was over $7,500 simolians! Although, I do have their Burnout DP back race exhaust. :D

FCdemon 03-15-04 06:49 PM

damn. for 750000 yen that is not likely to be worth the price.

user 9348703 03-15-04 07:26 PM

Damn there was some interest in it a while back, but the price turned people away. You can get the kit without the turbos and put your own variation on it, but..........

It looks cool, thats about all I can say.

Rx7pimpin 03-15-04 08:07 PM

RX7 store sells one.
http://www.rx7store.net/product.asp?0=220&1=362&3=720

MakoRacing 03-15-04 08:45 PM

They are overpriced, just get a deal on 2 turbos and make ur own piping! :)

MakoRacing 03-15-04 08:45 PM

They are overpriced, just get a deal on 2 turbos and make ur own piping! :)

FDNewbie 05-04-04 07:25 PM


Originally posted by artguy
i dont think the little rotary with normal ports will push enough exhaust to spool two large turbos fast enough.

no one has it here. youll get lag up the arse.


j

Makes sense...but what about w/ a aggressive street port, or say a race port? I'd imagine it wouldn't be bad at all...what ya think?

Also, I'm wondering if you could ever see over 400hp w/ these twins due to manifold restrictions... I had a nice convo the other day w/ some guys, and I came to understand that the stock manifold is too restrictive, which is the major reason why you get turbulence and power loss at higher rpms (around 6500 rpm). Hence why you may have twins that are capable of 500+ hp, but you can't utilize all that power.

The 2 examples were the supra tt setup, in which I forget the specifics, but the manifold was designed specifically to create free airflow, and that's why you have lots of supra guys running 400+ hp on their stock twins. Also, I believe Demtrious' car that left a lot of us speechless, doesn't it have a completely custom manifold?

(Correct me if I'm wrong anywhere... I'm still learning =)

doncojones 05-04-04 10:39 PM

http://border-racing.com/border-web-...turbineKIT.jpg

It would appear the kit does away with the stock exhaust manifold.

widebody2 05-04-04 10:46 PM

Those are t25 turbos...I'm not sure about the top hp numbers but I actually don't think the lag would be that bad. I can make this kit for 3 grand

FDNewbie 05-04-04 11:26 PM


Originally posted by doncojones
It would appear the kit does away with the stock exhaust manifold.
If you say so...I can't tell from the pic lol

widebody2, aren't the twins on 300zx's garrett t25s? Cuz I don't think they're good for 500hp, are they?!

As for making the kit for 3 grand... is that an offer? lol. So what makes it so incredibly expensive, if Border is asking close to 8 grand for it?! That's a hella markup...

GoRacer 05-04-04 11:30 PM

They are Apexi as mentioned on their website if you translate the description.

FDNewbie 05-04-04 11:39 PM

So basically they're Apexi t-25s, plus lots of fabbed piping and what not to make them bolt on/plug n play w/ the FD?

If so, is anyone running these?? (whether from border, or from apexi and fabbing the rest themselves?)

MR_Rick 05-05-04 12:10 AM


Originally posted by Rx7pimpin
RX7 store sells one.
http://www.rx7store.net/product.asp?0=220&1=362&3=720

I'm thinking on making this kit. I would like to see something on this.

Flybye 05-05-04 06:44 AM


Originally posted by FDNewbie
If you say so...I can't tell from the pic lol....
That's why........you're the newbie :D

FDNewbie 05-05-04 09:49 AM


Originally posted by Flybye
That's why........you're the newbie :D
LOL...Thanks for pointing that out Flybye. It wasn't that obvious to being w/, was it? :p:

widebody2 05-05-04 07:35 PM

Its expensive because you need two of everything and no one else makes one. Also the piping is a lot more complicated than a single kit. 8K is rediculous. I am making 2 copies of the kit.

user 9348703 05-05-04 07:56 PM

:rolleyes:


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