Bullseye turbine: What power have you made?

[sweet97]

There are hundreds of pages of posts on this turbine but I am looking for guys who have used it and dynoed and their set-ups if they would be so kind! I need to hear some things to help me deceide if that is a big restriction or OK to work with. Thanks, Mark
PS: My mods are up to date.

 

[94awdcoupe]

57trim stage 3 bullseye. 2.0 engine with 7.8 compression, 414 cams and cyclone. And preety sure was running evo8 intercooler with crappy piping. Still laid down 380whp/380tq at 21psi. I was very impressed with how this turbo was performing. Gave up on the turbo as we just couldn't get a 57 trim to stay together. Went through three in less than a month. Test was on 93 octane. Made less hp as boost was turned up. The high torque shows how fast it was spooling. Tried the pte housing and it worked no where near as nice.

 

[sweet97]

Thanks. it's a start! I am worried that the bullseye turbine is a restriction as I am finding it dos no better at high oost levels either. I have had a 50 trim, 60-1 and now the Holset all with the BUlleye turbine. Hopefully there will be more who have testd it! Mark

 

[IPT]

Here you go:

http://www.dsmtuners.com/forums/showthread.php?t=208481

All sorts of dyno info on the Bullseye turbos and many other ones too.

 

[94awdcoupe]

The dyno numbers I gave were on 93 octane. it didn't make more power on the dyno because that was the limit of 93 octane for the setup. Later it was tuned at 29psi and was absolutely flying, 450whp easy but no dyno numbers.

The samller wheels are restricted inside this housing. the larger wheels like tdo6h, and p-trim are likely to work quite well. I know of local here that had a 60-1/p-trim inside of a .36a/r ford housing. Car went 10.0 at 140. Big wheels can work in small housings. Not every turbo builder will push such a combo but those who have dared have found good results.

 

[joeracer321]

There are hundreds of pages of posts on this turbine but I am looking for guys who have used it and dynoed and their set-ups if they would be so kind! I need to hear some things to help me deceide if that is a big restriction or OK to work with. Thanks, Mark
PS: My mods are up to date.

Mark,
I have told you time and time again that the issues you are experiencing were not due to the turbine housing. And I have been correct so far, you found many problems that have contributed to the issues you experienced. So I can't believe you are still pointing fingers at the housing. You haven't done any tuning on the car since you fixed all of the other problems you had with your car last year. I have been patient and given you all the things you needed to fix and you have fixed most of them except engine management. Give the turbo the proper set up and it will give you great results, so please don't bad mouth the product when your car is the problem.

For example in another thread you blamed the turbo for overboosting and surge but you didn't even have a line going to the waste gate actuator. I think you are a nice guy but you don't know your way around a turbo car. And you push people away with your unneccessary and untrue observations and comments.

 

[biglady112]

Hea slow down there Josh. I have spoken with Mark. After he gets a few more bugs worked out and gets the ball rolling with the MAF-T, this spring he will take the leap to dsmlink. He knows his limitations now. I have had a few long conversations with him about the importance of tuning. He is just starting to question the quality of the turbo and if it is going to be a restriction for his goals. That is ok if he does this. He has spent a lot of time and money and would like to yeild the results. I told him when he goes to dsmlink It will be night and day from the translator. Be patient with him as I have. He is 53 years old so this whole turbo and technology thing to him is new. He doesn't know how to use a laptop, just learned how to use a cell phone. So he is old school and his car background is old school.


We will get it Mark. As soon as we make the step up, you won't be able to stop smiling for a week. If I have to come to New York and put that car at 500whp, then I will do that.

Steven

 

[joeracer321]

Hea slow down there Josh. I have spoken with Mark. After he gets a few more bugs worked out and gets the ball rolling with the MAF-T, this spring he will take the leap to dsmlink. He knows his limitations now. I have had a few long conversations with him about the importance of tuning. He is just starting to question the quality of the turbo and if it is going to be a restriction for his goals. That is ok if he does this. He has spent a lot of time and money and would like to yeild the results. I told him when he goes to dsmlink It will be night and day from the translator. Be patient with him as I have. He is 53 years old so this whole turbo and technology thing to him is new. He doesn't know how to use a laptop, just learned how to use a cell phone. So he is old school and his car background is old school.


We will get it Mark. As soon as we make the step up, you won't be able to stop smiling for a week. If I have to come to New York and put that car at 500whp, then I will do that.

Steven

I am getting a bit frustrated that is all, I mean I get comments from Mark like this:

Good News! Joeracer321 solved my boost creep issue. It was my own stupidity! My MBC failed and so I just removed the vac/boost signal line from the actuator altogether. Spool waas super quick but the pressure required to open the wastegate was so much that I got boost levels higher than I could accept. Joeracer321(Joshua) took at least a half hour on the phone with me going over my set-up and he truly wants to help me get my car running well. He's been on the receiving end of some of my frustration also and has acted professionally and caring bearing with me.
4" intake next week. Glad Josh and I stuck with this Holset as I am impressed with it's characteristics, especially it's free spinning wheels. More to come! thanks, Mark

To this:

4. I have been one of Bullseye's biggest fans and personally like Dave Hall but patience is wearing thin now. A larger turbine would be more appropriate for my Holset in my uneducated opinion. Mark
PS: The specs for the Holset wheels used cannot br found yet but I am told they are garret wheels.

These comments are uneducated and there are a few more unapropriate comments around that I can't find at the moment. You must understand that people on the internet rely heavily on opinions of other users. And if the users are badmouthing and blaming issues on certain things that aren't the problem, then that person needs to be educated then the comments be cleared up so that the misinformation can stop there. Unfotunately Mark seems to continue to make these comments without full understanding of what's going on. So I hope that you understand my frustration and that it is not to bash Mark as a person but to get the point accross that folks should think twice, or ask advice before making such comments.

 

[sweet97]

Yeah Josh I said uneducated because it was second hand info. I still have a $200. paperweight here that did not have to happen. "Just dremmel this area away". Well I have a spare now! I'm just a bit discouraged not angry at ANYONE or even a PRODUCT, things happen. If guys are NOT making 500+WHP with the Holset I would like to know why.
Joshua you never gave me anything. I can't even get a replacement filter from your pre filer set-up. You helped me work with Forge who took back a product that did not work on my set-up but I still think they have a good part that just did not work on my car.
So I do some searching and personally would not reprint the things I read about one of the owners of BUllsey as I have more respect for the man. However geting the wheel sizes has proved difficult/impossible. I'm not giving it up yet. I am going to learn TMO logging soon. Peace! Mark
ps: I am not pointing finger at a person or prduct either. You said the holset w/bullseye housing was a great set-up, what have you done on the dyno? Track? All I am trying to do is find out if the turbine is a restriction. I have read it was. I just would like some numbers.

 

[joeracer321]

Yeah Josh I said uneducated because it was second hand info. I still have a $200. paperweight here that did not have to happen. "Just dremmel this area away". Well I have a spare now! I'm just a bit discouraged not angry at ANYONE or even a PRODUCT, things happen. If guys are NOT making 500+WHP with the Holset I would like to know why.
Joshua you never gave me anything. I can't even get a replacement filter from your pre filer set-up. You helped me work with Forge who took back a product that did not work on my set-up but I still think they have a good part that just did not work on my car.
So I do some searching and personally would not reprint the things I read about one of the owners of BUllsey as I have more respect for the man. However geting the wheel sizes has proved difficult/impossible. I'm not giving it up yet. I am going to learn TMO logging soon. Peace! Mark
ps: I am not pointing finger at a person or prduct either. You said the holset w/bullseye housing was a great set-up, what have you done on the dyno? Track? All I am trying to do is find out if the turbine is a restriction. I have read it was. I just would like some numbers.

I'm working on it right now, I am going to be installing a HX-40 on my Evo so everyone can have some data to look at. I will also be testing the new Borg Warner line as well. There will be plenty of dyno charts, A/F and boost charts to look at, as well as logs from my ECU+.

 

[1SloColt]

I run an sc61 with a bullseye housing and p-trim turbine wheel. Its setup for external gate off the O2 housing which I fabbed up myself. The car ran well on 21psi on pump gas but when I turned it up to 27psi it was a totally different creature. The turbo absolutely loved that higher boost, and I attribute it to the bullseye with the larger wheel mostly. I was flowing around 2600hz at 6.2k rpm in 3rd at the time on a completely stock longblock, though I could not get a full pull in 3rd cause I had to keep letting off due to the fact that I could not keep the car anywhere close to straight. I would guess that if I could wrap out 3rd gear completely to 7300rpm I would have been flowing between 2900-3000hz, so anywhere from 400-430whp would be my guess.

 

[sweet97]

Must be my driving because I am hitting 3600Hz in 3rd near 8000rpm's. Are you running a stock ECU? What about tuning devies? Timing advance? Your mod list is not current. Thanks Mark

 

[1SloColt]

Thats a lot of airflow, but it also has to do with the compensation. Buddy of mine flows 3250hz at 7200 and makes 500 to the wheels, we run the same setup basically except he has cams and SMIM. I run a stock 90 ECU.
My mods:
GM MAF w/ translator
2g manifold
Stock 90 longblock
FMIC
3.5" exhaust
Custom SC61
Tial 44mm off O2 housing
660s
SAFC
walboro 255
Cold Air Intake

That night at 27psi I ran a NT fuel pressure regulator so my duty cycles wouldn't be over %100 with the 660s. I actually ended up pulling out a lot of fuel at the 43psi base pressure.
The car was unsafe for the stockish suspension.

 

[gSx_r1der]

So I take it that holset 35/40 combo isnt working out for you sweet?

 

[sweet97]

Not yet but I will not give up as I have had a few turo's and I LIKE THE HOLSET. Just not sure about the turbine but I will be trying a few different chips and am getting TMO logging capability. Last year I went 11.80/117. Added Crower stage 4's in place of the 272's and got a JM SMIM. best this year is an 11.85 for et and on a slower run hit 122mph. Expected an 11.20 @ 125+. Lots of time yet. Going to try more timing. Mark

 

[1SloColt]

Well I do see a lot of DSM guys switching from gt35r type turbos that flow 65lbs/min to pt67 type turbos thats flow 75lbs/min, the hx40 would fit in this category. Everybody that runs a t4 housing with the larger 75lbs/min flowing compressor wheel has no problems making 600-650whp with the right combination of parts. But it seems that the guys running t3 housings or something even smaller, i.e. bullseye or precision housing, can't make shit worth power until they run huge boost levels. I see all these guys running the FP3575 and they make 550 all day long but have to really crank it up to get to the 600 mark, where a gt35r can do 600 no problem at pretty much the same boost level as a 3575. My point is that I think when you get to a wheel that starts flowing 75lbs/min, you have to have a very good flowing hotside to accomodate that compressor wheel. It seems that the smaller housings just aren't doing anything for that 75lbs/min wheel. Running t4 gt35r = great power because of the flow and really good spool up on a 2.0, around 4800rpm spoolup.

 

[gSx_r1der]

Well I do see a lot of DSM guys switching from gt35r type turbos that flow 65lbs/min to pt67 type turbos thats flow 75lbs/min, the hx40 would fit in this category. Everybody that runs a t4 housing with the larger 75lbs/min flowing compressor wheel has no problems making 600-650whp with the right combination of parts. But it seems that the guys running t3 housings or something even smaller, i.e. bullseye or precision housing, can't make shit worth power until they run huge boost levels. I see all these guys running the FP3575 and they make 550 all day long but have to really crank it up to get to the 600 mark, where a gt35r can do 600 no problem at pretty much the same boost level as a 3575. My point is that I think when you get to a wheel that starts flowing 75lbs/min, you have to have a very good flowing hotside to accomodate that compressor wheel. It seems that the smaller housings just aren't doing anything for that 75lbs/min wheel. Running t4 gt35r = great power because of the flow and really good spool up on a 2.0, around 4800rpm spoolup.

With this in mind how are the guys doing it over at forced performance running their own housing and producing such good numbers??? I know that their housing is different that the typical bolt on housing but what makes there housing so great??

 

[uncle ben]

I did 374 on a customers car with the bullseye housing on nothing but bolt ons. Stock cams and intake manifold. The turbo was an agp rs52. The car has cams and a jm smim now, but i have not been able to get him back on the dyno. Im thinking from the way the car feels now on 20lbs, 450 whp should not be a problem on high boost. As soon as we can get back together, i will post the newer numbers. I personally dont feel its the turbo housing. I know its rather small, but still do not feel this is your problem.