Borg Warner Match Bot
 

I've been playing around with the Borg Warner match bot.

Would appreciate if those wiser than I could have a look at my calcs, and give any comment. My two concerns are possible compressor surge at 2500 - 3000; and whether I'm going to experience boost creep. From what I can tell I am safe with creep, the analysis shows 25mm IWG required, the EFR6758 has a 31mm IWG.

Thanks in advance!

http://www.turbodriven.com/performan...6_wrsin=92044&

Look at the 7163 in comparison to the 6758. May have to upgrade the wastegate actuator if using a borgwarner actuator.

The 7163 isn't released yet. There's also no details on their site.

1) What power output are you after?
2) What fuel?

Responsive high 300s whp . If 400whp bonus.

98 pump fuel

going by just the graph it does seem that the 7163 gives more clearance on that left side. With the 67 your flirting with that limit.

Ive used these types of calculators before but I feel like the FA20 isn't reacting all that conventionally to boost so its hard to say how accurate these are.

I'd go for the smallest EFR they do, preferably the twin-scroll one. More than enough, anything else is going to give you a crap spool threshold.

^Transient response on any of the large frame twins or medium frame single scrolls is going to suck.

Waiting for the twin scroll 7163 would be my pick, alot of the dynos from full race/perrin look amazing.

I know the next efr based FA20 kit I build will use the 7163. Now to find someone locally that wants that when they become available, lol.

I disagree.

If you actually looked at my match bot calcs, 9psi at 2500rpm and 20psi at 3000rpm is disco type response. It's certainly better response than a 71r, and I'd hardly call one of them laggy.

Calculator is a calculator, not the real world.

I agree, but point still stands that turbo won't be laggy. There's a few real world conparisons between these smaller efrs and gt28 type turbos.

After reading this, I went back and checked the matchbot and was surprised the efr7163 was in there, even though it's not released.

Had a play using that, and matchbot confirms what beta testers are seeing. It spools sooner than the 6758, which can be seen with my parameters that I've now got more room before compressor surge, and it's more efficient up top due to the larger a/r.

It might be worth waiting for this one to come out.

Here's my calcs on the efr7163. I'm still not 100% on some of the parameters. I'll have a straight exhaust so wonder if I should bump the exh bp down a bit.

http://www.turbodriven.com/performan...6_wrsin=92044&