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-   -   20b NA swap (https://www.rx8club.com/new-member-forum-197/20b-na-swap-268555/)

JoyBed 10-11-2018 11:32 AM
20b NA swap
 
Hi there! At work my soldering station blew up so I had time to do nothing and just think and come up with some unuseful ideas(like the wasted apark thread I posted :D ). Basically I was thinking what the car will be like if i swap a 20b in it in NA config and put some things from the 13b-msp like s-dias, rotors to have bigger compression and do some porting to enlarge the ports and tune it to this configuration. What do you guys think?

Loki 10-11-2018 12:05 PM
I think that would get you a Speedsource Grand-Am RX8 :)
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Workstation explode you say.... I'll have to remember that.

UnknownJinX 10-11-2018 12:08 PM
Unless you have a literal mountain pile of cash right beside you, I think it's the best for this to stay on paper...

JoyBed 10-11-2018 12:20 PM
Originally Posted by Loki (Post 4872186)
I think that would get you a Speedsource Grand-Am RX8 :)
​​​​​

Workstation explode you say.... I'll have to remember that.
It was from Pro’s kit, we already use Weller for like 3 years without a problem and the Proskits are problematic, something blew up in it and it caught on fire. At my work it runs every day so... And out there in the world are NA 4 rotors so why not 3 rotor NA :D

JoyBed 10-11-2018 12:23 PM
Originally Posted by UnknownJinX (Post 4872187)
Unless you have a literal mountain pile of cash right beside you, I think it's the best for this to stay on paper...
I said I dont want to build it, I don’t have that much money. But as a idea how much power can something like that have? 200kw 250Nm? :D

Loki 10-11-2018 12:38 PM
The Speedsource cars claim 450hp, but they're not exactly working with OEM parts or real world drivability constraints. Who needs S-DAIS when the car spends its entire useful life above 6,000 rpm.

JoyBed 10-11-2018 01:00 PM
Originally Posted by Loki (Post 4872191)
The Speedsource cars claim 450hp, but they're not exactly working with OEM parts or real world drivability constraints. Who needs S-DAIS when the car spends its entire useful life above 6,000 rpm.
So for the real world and with OEM parts and reliable and streetable, it can be somewhere around 350hp?

Loki 10-11-2018 01:08 PM
Your guess is as good as mine.

JoyBed 10-11-2018 01:27 PM
Originally Posted by Loki (Post 4872194)
Your guess is as good as mine.
If someone can give me the NA 20b them I can build some primitive ECU that can handle the ignition, fuel injection and some kind of small fuel maps, but thats just my creative mind. In real world only 1/10 of think I came up with will be realised :D

sonicsdaman 10-11-2018 01:31 PM
well a renny is
2 rotor na = 200whp; potato wtq

since I'm bad at math 1 rotor renny style is 100whp; half a spud wtq
so..

3 rotor = 300whp; curley fries wtq

UnknownJinX 10-11-2018 01:36 PM
Originally Posted by sonicsdaman (Post 4872196)
well a renny is
2 rotor na = 200whp; potato wtq

since I'm bad at math 1 rotor renny style is 100whp; half a spud wtq
so..

3 rotor = 300whp; curley fries wtq
200 whp is optimistic. I think stock is about 180 whp and 130 wtq.

And remember that this is also realized by the very good intake design of Renesis. The older NA FC makes much less power stock.

So I am going to say that 270 whp can be possible, but you have to engineer the intake properly and that's very difficult. Otherwise there will be less power.

sonicsdaman 10-11-2018 02:02 PM
it's not that optimistic new and/or healthy engine with all the bolt ons and a tune will get ~190-205hp :dunno:

also you would have to make custom header, intake and tune for a hybrid engine anyways so that right there would be the "restrictions"


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