BNR stage 3
 

Anyone know what kind of HP you can get from the stage 3's on a ported 20B

what kind of turbo?

I guess just the Upgraded stock twins running in sequential. I'm looking into the BNR's and the Pettit upgrades.

Do BNR have any info on what they do with the turbos?

I just sent them an e-mail so hopefully I will hear back from them in them tomorrow. But if anyone would like to share some info I would appreciate it. But from what I hear it's possible to get 500+ HP from the twins.

why would you put those small turbos on a 20b?

I've talked to Bryan about these and I'm considering them on my Cosmo.

I believe there are 2-3 BNR stage 3s in AUS/NZ.. I think he told me that they are making over 400.. But not sure about 500.. I'll ask him..

This is what Bryan fron BNR told me..

His primary is V trim and should make 350 by itself...

Secondary is GT28 and combine should get close to 500. He could set it up seq. or non-seq. And to correct my statement above, BNR said he sold 15-20 of these to people in AUS/NZ but no dyno info.

I'm definitely going to get one from BNR and run it sequential on my cosmo. I might even consider putting one on my 20B FD..

BNR can be reached at: http://www.bnrturbos.com/ or via phone (205) 640-1193

I'm waiting on an email from Pettit to see what they are talking about.

It's not really a matter of size so much as how they are set up. Don't get me wrong there are some turbos that just won't work on our cars; but they came with twins from the factory and at the time were very stout in some ways they still are. Personally I am thinking about twins from the standpoint that I want an OEM sleeper look to my engine bay. I don't drag race often, but the Honda boys are on to rotary power, and alot of the domestic market guys are as well. What better way to throw them off when they want to check for nitrous or whatever than opening the hood and having a set of twins sitting there instead of a huge single. Twins suggest 300HP AKA i can beat this guy. A single suggests to me 500+ and I should prep my tank of giggle gas. Just a personal opinion.

Also sticking with modified twins that can get you into the power area you want cuts back on the cost of your conversion by a few thousand bucks too.

I got that email back from Pettit and they said with stock twins you can expect roughly 200HP per rotor with good tuning and proper supporting modifications. That's not half bad. Now the powerband will be around 3-6K while a single conversion will get you maximum power around 5-8K for racing and high HP builds.