We did some testing for bullseye this weekend on my Integra utilizing a Borg Warner S200 turbo. These are the results. Forced-Induction didn't seem to care since we didn't put GT42 in the title so maybe you guys will appreciate them.

The turbo tested flows a measly 55lbs/minute, and we will be testing larger turbos as they send them out to us.

http://www.bullseyepower.com/s200_acura.htm

Low boost results here as well:

http://www.dynotuneusa.com/turbocomparo

 

Any specs on The 2 turbos?

 

The T3/T67 is what I currently run on my car.

Full-Race T3/T67
67mm compressor, .82 A/R exhaust housing, stg 5 wheel

Borg Warner S200
56mm compressor, .76 A/R exhaust housing
comp wheel od is 3.14, inducer is 2.19
exh wheel OD is 2.92, exducer is 2.54

 

holy crap...now that's some gains to be proud of!

are these an OE option...or purley aftermarket?

 

Do you have datalogs of the boost curve by chance?

 

I wish. ;(
Just an autometer boost gauge to monitor boost pressure. Old Hondata 4b died, running on Crome, waiting for AEM to arrive. ;/

 

NIce gains in midrange! However, i bet that the t3/67 can do more damage if cranked up to 30psi! I know that the "report" states that 25psi is in the t3/67's maxximum effcient range, but i've seen that turbo make much more power then that at higher boost levels. Seems like that turbo (s200) is maxxed out on 30psi. I don't really see a comparison, a smaller turbo to a larger one? Nice write-up anyhow. Paul

 

It wasn't intended to be a heads up comparison, we just laid the graph over the previous turbo to see how they lined up to each other. It's just interesting to see the midrage difference and the fact that the S200 had a longer power band and hung right w/ the T67 on the top end as well. Obviously power levels are not gonna be similar on T67 w/ 75lb/min flow to a 55lb/min flow S200. We have a S300 67lb/min setup in the works which should hands down outdue the T67 in all aspects.

If it's a 500-550whp setup your looking @ the S200 hands down is a better choice.

 

I gotcha, i just didn't understand what was being compared here. You are correct, the s200 laid the smack down on the t3/67 at those power levels. Definately good turbo for 500-550whp range. Paul

 

I am definately pumped to test the s300 setup as well as max out the t67.
Finally have enough fuel system to go beyond 550 hp as well so we will have a good comparison of the t67 vs the s300 both on high boost.

 

Yeah, sorry for the confusion.

On the other hand the T67 vs. S300 will be a head to head comparison. This i am excited for. The T67 has a 8lb/min advantage but i see the underdog S300 laying the smack down again! We're gonna be lookin for somewhere between 650-700whp @ 30 psi.

 

test the S400 too

 

I think that's a little out of our league for this application.

 

haha....i know

and...the turbo's going for over $1000...that's more than most journal turbo's this size...but, it's a little cheaper than the bb's of the size... anyway to compare it to a more similarly sized turbo with both chra's?

 

Wait a minute, are you comparing one turbo at 30psi to another at 25psi?

 

The overlay between the two was at similar power levels, not boost levels.
The s200 made approx. 493 whp on 25 psi.

 

Turbo's were NEVER meant to be compared we just so happened to have the old graph so we overlayed it onto the new graph for similar power levels.

 

Ok, but you keep talking about the huge increase in the midrange power from the turbo, when in reality it's just because there was more boost. The difference in power at the same boost level is what should be compared. The gains from the smaller turbo would be in a very narrow rpm window if it was done that way. You can't compare two graphs because the peak numbers are the same, when boost levels were different. In my opinion, all this shows is how bad *** the 67mm turbo is.

 

oh...i thought they were both on 25psi.....

 

Well i'd hope the 67 would make more power it flows 20lb/min more. Based off the responce of the S200, im predicting S300 is gonna put the "bad *** T67" to shame but only time and tests will tell.

 

So what exactly was the point in pointing out the difference in midrange power between these two turbos at different boost levels?

 

well get the S300 test out...so we can compare

can you do it on the same boost level though...and get a boost trace?

 

Im not pointing out anything. We did the testing and supplied the graphs, that is all.

If we were to setup a 500-550whp setup, the S200 suits the bill way better by providing much more midrange torque and longer powerband then the T67.

 

We will do the S300 @ the same boost levels as the S200 was tested @. We'll overlay all (3) 25 psi graphs and go from there.

Not starting arguments or pissing matches about this is better, thats better. Just supplying graphs to show power output, powerband, etc..

 

Maybe i misunderstood the link you guys posted. Looked like you were talking about how much better this turbo is than the 67. I agree, the 67 is a bit big for 500-550hp, but you have to admit, the graphs you guys printed are very decieving. If you're going to run 30lbs of boost, then the difference would be very minimal, but a huge gain in top end power. The difference in spool between the two turbos is VERY small. With the boost the same, the small difference in spool is all the other turbo has on the 67. I'd take the 50hp over a few hundred rpm spool any day of the week.