what lbs/min are the 64mm and 67mm S300 rated for?
What size turbine wheels do each of the S300's use?

93AWDTalon1 said:

what lbs/min are the 64mm and 67mm S300 rated for?
What size turbine wheels do each of the S300's use?

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64mm is 72lb/min, and the 67mm is 80lb/min. We dont have any turbine wheel specs yet as they are still being worked out and mated w/ turbine housings. We are doing a lot of testing w/ this lineup trying a variety of different combo's.

bump bump!

Any new s200 dyno numbers? Its been a while. The exhaust side on my turbo just went ca-put and I'm shopping around now. This little guy looks interesting.

same here, looking at new options for my jdm vr4 and a friend has put me onto the bullseye power range, so far looking at the bolt on t04e 60 trim or the s200, would be interesting to see what your results say.

And any updates on the S300 testing?

I was lookin at the compressor map on the s200 and notice that their most efficiency is 74%, I've read that turbos below 74-75% efficiency for some reason are not very good due to the low efficiency? but looks like it can hold 26 psi while still being most efficient.

ITSME4G63 said:

I've read that turbos below 74-75% efficiency for some reason are not very good due to the low efficiency?

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The big 16g is only 71% and that has been a very good turbo for alot of people. And the evoIII is only 74%.

Hey if you guys are wondering where we went, click over here http://www.bullseyepower.com/forums/

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

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I went so far as to contact Holset. They said there were many HX-40's with different wheels and the BEST would be doing well to flow 60lbs/min when I was told as was everyone by the advertising that it flows 70 and I have had GRE even say up to 75lbs. I was running 27-30psi on a mix with mostly 112 octane race fuel. I can only imagine what a turbo flowing 15% more than what I have would do. My car is no slouch clicking off 120mph 1/4's on my Scanmaster which is very accurate. I think the Bullseye turbines are bullit proof but they should have had a larger option for the giant compressors they are trying to run. My Holset wheels spin VERY much freely, moreso than eany turbo I have owned, EVO3, RS49, RS60T. It will turn for many seconds with a good spin. I was actually considering one of these Borg-Warners until I saw this. It seems to get a 70-80lb/min turbo means an expensive choice from FP. I'm going to a SBR cast exhaust manifold in place of my DNPerformance tubular hoping for more flow and hope the Bullseye can handle the flow! Mark
PS: My car has gotten quicker with the Holset. I took the HKS 272's out for Crower stage 4's, big difference and cheaper. HKS 272's have 213* duration in and out with lifts of .406" & .386". The Crowers have 218*/216* and lifts of .425" and .416". I also added a JM SMIM. Car developed torque steer! It's an AWD '93 Talon. I like the Bullseye turbines for quallity but flow concerns me. I was looking at the S366 that is supposed to flow 80lbs/min. How can the Bullseye turbine handle that Compressor? I paid Josh $750. for the Holset HX-35/40 and only put about 3000 miles on it. It's in great shape. How about a Bullseye vendor takes my Holset in on trade againt a S366 or whatever compressor they think will make a significant difference and I will test it with my Scanmaster. I kinow it's not the track but I can directly compare it to the Holset that flows at best 60lbs/min according to HOLSET! Bullseye and friends still call the 40 compressor a 70lb/min. NOT!
Dave Hall did not return my last email and I thought we were friends. I have been one of Bullseye's biggest and loudest supporters. Do me and these guys a favor and take the Holset in trade for a Borg-Warner that can flow near a true 70+lbs/min. I will make up the difference in cash.
How can I lay out $1250. for something that is in doubt?? I have the motor to handle the turbo you choose. Just added a head with larger valves and O-ringed along with a nice P&P. I feel like I was taken advantage of. 70+ lbs/min when HOLSET says 60 with their best 40 series compressor which I do not have. I believe I have a58mm compressor. How about it Bullseye guys? Josh? Mark

sweet97 said:

I went so far as to contact Holset. They said there were many HX-40's with different wheels and the BEST would be doing well to flow 60lbs/min

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Straight from holsets website http://www.holset.co.uk/files/2_1_1_4-HX40.php

.53 kg/s converted to lb/min = 70.16028 lb/min

OK. And the HX-35 flows 60lbs/min so the Hybrid must have confused the holset rep. That's a relief then. How about the compressor wheel sizes, in line with a 70lb/min turbo or can't they be used to compare with say a 60-1? Inducer=2.362" and exducer=3.328". Thanks for the correct info, I happily stand corrected. Mark

My apologies to all that I upset/confused by saying the HX-40 flowed 60lbs/min as I got it from Holset. The Holset rep must have been confused by the hybrid HX35/40 and gave the flow for an HX-35 which is 60lbs/min. I would still appreciate some Bullseye vendor taking mu Holset which has only 3k miles on it and is in excellent condition in trade for an 80lb/min S366 or whatever model will do the 80lbs. I'll get a comparison to the Holset. Again shelling out $1250. for an unproven turbo is not prudent and I don't think sales of these new turbo's have been brisk. That price is FP Green and Red territory. Proven turbo's. Thanks, Mark

Why would you buy such a big turbo with a .48 a/r?? Why didnt you just shell out the $400 for the cast turbonetics manifold and run a .82 a/r hx-35/40. That might have flowed your requested 75-80lbs.

gSx_r1der said:

Why would you buy such a big turbo with a .48 a/r?? Why didnt you just shell out the $400 for the cast turbonetics manifold and run a .82 a/r hx-35/40. That might have flowed your requested 75-80lbs.

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How do you know that the Bullseye turbine is a .48a/r? I was told it was an .55 a/r and we can't compare a/r's between different turbine families. Who makes this .82 a/r you are speaking of? Holset? Like a 12^cm2 or an 18^cm2. Rather large don't you think? Oh, Holset doesn't make a hybrid like the HX-35/40. You must know something you're not sharing. I'll do OK. 122 in the 1/4 tuning with a MAFT isn't too bad. Something like DSMlink might get me an 11.25 at 125+mph.
Maybe next time I will get the T3 manifold and a true GT35R or GT40R. mark

sweet97 said:

How do you know that the Bullseye turbine is a .48a/r? I was told it was an .55 a/r and we can't compare a/r's between different turbine families. Who makes this .82 a/r you are speaking of? Holset? Like a 12^cm2 or an 18^cm2. Rather large don't you think? Oh, Holset doesn't make a hybrid like the HX-35/40. You must know something you're not sharing. I'll do OK. 122 in the 1/4 tuning with a MAFT isn't too bad. Something like DSMlink might get me an 11.25 at 125+mph.
Maybe next time I will get the T3 manifold and a true GT35R or GT40R. mark

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you have the option when purchasing the hx 3540 to get it in a t3 turbine housing, and if thats the case I'm willing to bet you can choose which t3 housing you want it in. which means .82 a/r is what you should have went with. on a t3 manifold in my opinion.

ps i just got my dsmlink today, after this weekends go again at the 1/8th im getting the ecu socketed and getting rid of the safc.

I checked out the site that Mark bought his 35/40 from, and I believe the T3 housings listed as options are cast from Bullseye. As such, I wouldn't expect the AR to be any larger. If they were, I'm sure more people would have bought them.

gSx_r1der said:

you have the option when purchasing the hx 3540 to get it in a t3 turbine housing, and if thats the case I'm willing to bet you can choose which t3 housing you want it in. which means .82 a/r is what you should have went with. on a t3 manifold in my opinion.

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He went with a DSM housing, so no choice on what a/r to use. I personaly don't believe that the housing is too small, may not be absolutely optimal size, but not too small.

Doesn't matter which bullseye turbine you get it's a .55a/r, same size for a Mitsu or T3 housing. I realize a Mitsu flange turbine is a compromise just as a PTE would be a compromize. It may be fine for their V trims and other 50lb/min type turbo's but when they get into the bigger flowing compressors the Bullseye turbine is a bit small. GREAT turbine, weighs 13#. SOLID construction, I like them. All I would have liked was an option for turbine sizes. I also realize that the owners of Biullseye did not have unlimited funds to work with and that perhaps even the foundry that was casting the housings had to kick in to get the turbines manufactured as it is. They offer the same turbine for 100lb/min compressors also, I don't think so, TOO small!. I will get the Holset to low 11's with DSMlink when I learn how to use s cell phone and then step up to a laptop. Right now I am typing this on webTV!!
I will say the Holset keeps up with cams that dwarf the HKS 272's I had, the Crower stage 4's and 8500rpm's through the gears at 30psi without dropping 1 psi.
I have learned that a T3 exhaust manifold and a GT35-Gt40 would be the way to go if I could do it all again. I even am intrigued by the Borg Warners and would try an 80lb/min model, the S366, if a vendor would take my Holset in trade against that $1250. turbo. Given $1250. most guys here would choose something other than a BG turbo. I would be the guy who would test a BG S366 and see what it would do with the Bullseye turbine. Thjat's all, compromise and all! Thanks, mark

sweet97 said:

Doesn't matter which bullseye turbine you get it's a .55a/r, same size for a Mitsu or T3 housing. I realize a Mitsu flange turbine is a compromise just as a PTE would be a compromize. It may be fine for their V trims and other 50lb/min type turbo's but when they get into the bigger flowing compressors the Bullseye turbine is a bit small. GREAT turbine, weighs 13#. SOLID construction, I like them. All I would have liked was an option for turbine sizes. I also realize that the owners of Biullseye did not have unlimited funds to work with and that perhaps even the foundry that was casting the housings had to kick in to get the turbines manufactured as it is. They offer the same turbine for 100lb/min compressors also, I don't think so, TOO small!. I will get the Holset to low 11's with DSMlink when I learn how to use s cell phone and then step up to a laptop. Right now I am typing this on webTV!!
I will say the Holset keeps up with cams that dwarf the HKS 272's I had, the Crower stage 4's and 8500rpm's through the gears at 30psi without dropping 1 psi.
I have learned that a T3 exhaust manifold and a GT35-Gt40 would be the way to go if I could do it all again. I even am intrigued by the Borg Warners and would try an 80lb/min model, the S366, if a vendor would take my Holset in trade against that $1250. turbo. Given $1250. most guys here would choose something other than a BG turbo. I would be the guy who would test a BG S366 and see what it would do with the Bullseye turbine. Thjat's all, compromise and all! Thanks, mark

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You claim to have loudly supported Bullseye, but yet in the next breath you constantly bash them based on your unsubstantiated opinions. Even if your turbo did flow 60 lb/min, as you feared, you're not making anywhere near enough power to reach that limit yet. We've gone 126.8 mph on a 20g, which is rated at 44 lb/min. You can easily crack 130 on your setup. Stop blaming the parts, buy engine management, and learn how to tune. Slapping yet another even larger turbo on your car isn't going to help you one bit.

Steve93Talon said:

We've gone 126.8 mph on a 20g, which is rated at 44 lb/min. You can easily crack 130 on your setup.

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You shoot numbers at everyone, and there is a problem - the results are not typical. How many others are running fast on Holsets with the BEP housing? Or have gone 126.8MPH on a 20G?

Sure, the times are possible here and there, but to say that every car with X setup will go X ET/MPH is ridiculous.

STEVE, I apologized. What more on a personal level can I do? I apologize directly to you Steve as I was and still am dissapointed in the lack of response that Bullseye has given me, especially Dave Hall, however I have upset you and again I apologize. I considered Dave a friend. Then I question some data and I don't even get a response.
I never bashed Bullseye but did say I felt their turbine was too small for larger compressors. Yes I would try one of the BG turbo's, the S366. I have no choice right now financially to change course.
Sure I need better tuning. Does "I can't use a cell phone" give you a clue to my technical abilities?
Biglady112 has offered to fly from colorado to NY to help me with tuning DSMlink if I buy him the ticket and he can fit the time in. Great guy. He also feels I have done well with the Holset with high 11's and 120mph traps. Tuned with a MAFT. Oh, also an EPROM ECU and dsmchips.
I called Turbotrix because I think I could drive that far. He told me DSMlink was antiquated and I needed AEM AES and for just $2,000. he would set me up.
If someone locally wants to tune DSMlink for me and teach me what I need to do it myself please step forward. I have the operating instructions and they might as well be a foreign language.
It sems that most vendors are simply in this for the bottom line. Where are the dyno numbers Josh-joeracer321 said were coming in a week about 5 weeks ago? At least I offered to use my scanmaster and get a comparison with the Holset if a Bullseye vendor would work with me but no responses except one NO. I hope my apologies were accepted by someone. Best of luck, Mark

Topic

DSM90AWD said:

Topic

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Just to refresh everybodies memory on the subject
http://www.bullseye-power.com/product_info.php?cPath=37&products_id=148

Coup D E'Tat said:

You shoot numbers at everyone, and there is a problem - the results are not typical. How many others are running fast on Holsets with the BEP housing? Or have gone 126.8MPH on a 20G?

Sure, the times are possible here and there, but to say that every car with X setup will go X ET/MPH is ridiculous.

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How are the results not typical? You could put the same setup together and run the same times - if you know how to tune and drive well. Others have trapped higher on a 20g, but I was speaking from a personal point of reference. As for running fast on the Holsets, a friend has gone 127 mph with a clutch engagement problem and an engine with 110-110-90-90 compression. That doesn't even scratch the surface of what this turbo can do - in a hybrid housing. People have gone 9s on FP Reds, which are measly 61lb/min turbos in pathetically tiny 7 or 8cm turbine housings. The point I'm making is that if he's only trapping 120mph on a 70+ lb/min turbo, the LAST thing he needs to worry about is stepping up even bigger. He needs to learn to tune so he can maximize what he's got. He's far from the only one. DSMs used to be about bang for the buck, now it seems like it's just another car that people piss money into on bigger turbos and crap to solve their problems.

sweet97 said:

If someone locally wants to tune DSMlink for me and teach me what I need to do it myself please step forward. I have the operating instructions and they might as well be a foreign language.

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dsmlink.com/forums is your local freind. Once you pick up the link and get on the forums and look at other peoples log, setup and compare and contrast with yours it'll make the "learning the link" process a lot quicker. I have yet to get my ecu socketed but I have just been reading everyones log and comparing with my setup. I hope that the link is as easy as the safc which it seems to be pretty much strait forward. I'm telling you now if you got the link you'd be much more happier than tuning with a ####ing maft and scanmaster. Shit if you dont want that holset give it up, I'll find someone to put my t3 .82 a/r housing on that bi*** and get you some real numbers.