prostreetdsmx1
20+ Year Contributor
- 2,505
- 15
- Sep 29, 2002
-
Altamonte,
Florida
i am waiting for mine. i am going to be replacing my 60trim on my 2.0 awd. i'll share more info once i get it.
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Seat-of-the-pants reviews while nice to hear does not really tell consumers much in the way it performs or compares to other turbos.prostreetdsmx1 said:i currently run the bullseye housing on my and i can tell you that i love it

DSM90AWD said:Seat-of-the-pants reviews while nice to hear does not really tell consumers much in the way it performs or compares to other turbos.
Have you had a chance to run the SC4431 w/B-E housing on the Dyno or at the track? Since you now carry both, why did you choose to utilize the B-E housing over the PTE on your application ?

DSM90AWD said:Thanks for posting. Very nice numbers but note that the testing was done with a .76 AR divided T3 turbine housing, not the Bullseye. I expect some sacrifices for a turbo to "bolt-on" to the DSM manifold/O2 housing, just want to get some idea how much sacrifice that that will be
IPT said:Here is a link that Nick over at SLS did on his Integra with the S200 vs a T67.
http://www.dynotuneusa.com/turbocomparo
This is not on a DSM but you might be able to get an idea on the S200 turbo.
DSM90AWD said:Now that Bulleye is a wholesaler, relying on their retailers to provide ALL info pertanant to their somewhat "unique" combinations, I do hope that Mike/Marti follow thru on their offers to test these![]()
Can you also provide information on the B-E exhaust housing themselves? I've researched this housing on several different boards and found that it is just not sized well for the larger turbos (>49lb/min). Can you test backpressure at the manifold relative to boost?
Mark (Sweet97 in this forum) has had some tuning issues with the Holset 35/40 (Bullseye's last "new" turbo) which supposedly flows upwards of 70lb/min with the B-E housing but was unable to track down basic information from the Vendor (GRE) that sold to him. Consensus is that backpressure is too high at the boost level he's running (20-25psi) but there is no option for a larger bolt-on turbine housing.
Maybe you could offer him a hand
IPT said:Here is a link that Nick over at SLS did on his Integra with the S200 vs a T67.
http://www.dynotuneusa.com/turbocomparo
This is not on a DSM but you might be able to get an idea on the S200 turbo.
nanokpsi said:Neat comparison, but they should have used pulls at the same psi. The s200 spools about 5-700rpm faster, but is downon powerand torque compared to the t67 at 25psi. All that extra torque in the midrange is cause by the 5 more psi, not the turbo lag.
What are the flow capabilities on the s300?
PSI2HI said:That overlay was not meant to compare each turbo to each oher as the T67 flows 20lb/min more then the S200, just the difference @ a 550whp setup.
We will be testing the 62mm S300 w/ a .60AR undivided turbine housing here hopefully w/in the next few weeks.
nanokpsi said:The difference in flow would have been irrelevant if you comapred the two turbos at 25 psi. People who compare turbos almost always do it at the same psi, not at the same power level. What foot prints does BW offer for the hotsides and which ones are you using?
PSI2HI said:What no one in understanding is this was NOT a test to compare the S200 to the T67. We were testing the S200 for BW and BEP to see what it would do. We happened to have the graph of the T67 on file still as that is the current turbo the car runs so we overlayed it just for shits and everyone jumps the gun saying its not a legit test its not a fair comparison. Your right, its not supposed to be a test head to head we just overlayed them for shits and giggle.
We currently ran the S200 w/ a .76AR divided housing. The S200 is only a 56mm and flows a measly 55lb/min, but it does that very well making an amazing 550+whp @ only 30 psi which IMO is pretty impressive for such a small framed turbo.
The S300 comes in 3 different opitons, a 62mm, a 64mm, and a 67mm. For turbine housing they have .76 divided, and a .50 and .60 undivided if i recall. We are going to be testing the 62mm w/ a .60AR undivided housing which flows roughly 67lb/min. Im expecting this to hands down blow away the 75lb/min T67.
nanokpsi said:I am looking forward to the test, but I was just wondering if the hotsides that are offered are a t3 or t4 foot print.
Thanks
PSI2HI said:What no one in understanding is this was NOT a test to compare the S200 to the T67......Your right, its not supposed to be a test head to head we just overlayed them for shits and giggle.
.
nanokpsi said:http://www.bullseyepower.com/?products_id=138
Scroll down a little.....they sure made it look like a comparison, as did the other link. I was just searching with yahoo and came across that. At 25 psi the t67 makes almost 50 more whp and 18 lb ft of torque. Even the shape of the graph is the same. Granted a majority of the power difference could be attributed to hot side differences, but it just irks me that a company would group the information like that to try and sell turbos.
I'll still keep an eye out for more tests, epspecially if you test the 80 lb/min wheel with a t4 back side.
PSI2HI said:We did the testing, nothing more and nothing less.
In all reality i would hope a turbo that flows 75lb/min compared to one that flows 55lb/min would make 40-50 more whp. It's like comparing a 16G to a SC61. In the real world though the S200 on the track would definatly outperform the T67. .
nanokpsi said:1. Compressor flow is not going to dictate the power at that level.
2. In the real worl, on the track, you woudn't be limiting the power of the t67 by handicapping 5-7psi now would you. If its out muscling the s200 25psi vs. 25psi, the difference is going to be more apparent 30psi vs. 30psi where the t67 should be making around 600whp.
PSI2HI said:Lets just put it this way, we'll test the 62mm S300 vs the T67 head to head and im willing to bet the S300 is gonna put down better #'s w/ a smaller compressor and smaller turbine housing. @ 30 psi im expecting around 650 whp out of the S300.
We have now setup the car to max out both turbo's, the fuel system has been upgraded to 1000cc injectors, Aeromotive A100 pump, -8 feed line, and AEM. We intended to fully max out both the T67 and the S300. The T67 is still going to have a higher peak power level then the S300 being its airflow capabilities are still a good chunk higher then even the S300, but i'll guess the S300 is gonna make better power @ the same boost levels just based off what the S200 has already done.

nanokpsi said:I am all for comparison tests as they really benefit the community. However, reading through what Bullseye put on there page is just rediculous to anyone with turbo knowledge. I like how they justify keeping the t67 at 25 psi by saying that is where it is at its peak efficiency, especially since they are comparing it to another turbo that is obviously maxed out airflow wise.
I'm not trying to take anything away from SLS, or the s200, as I think it put out some very nice numbers for a "small" turbo. I really am looking forward to the other test(s). The 62lb/min wheel is going to have a tough time making much more than 620-630whp though. If it does make more power at the same psi, I think it will be a strong statement to how well the hot side flows. Keep us posted