PTE vs Bullseye bolt on housings?

[jdmspilner]

Im looking to go with a bolt on internal gate garret hybrid pos, What turbine housing is better as far as flow and internal gate?

Im looking for somthing around a sc61 in size.

 

[311GSX]

I would go with the pte. The division is cut to let the wastegate gas flow instead of being blocked by the flapper. Its also lighter

 

[joeracer321]

The Bullseye Power housing is cast from stainless steel, and doesn't require that the pocket be cut out of the housing for proper wastegate flow. The PTE housing is cut as a band-aid fix for creep issues they have with the housing. But if you are set on it, we can cut the pocket out if you think it is neccessary.

 

[92awddsm]

I would go with the pte. The division is cut to let the wastegate gas flow instead of being blocked by the flapper. Its also lighter

The bypassed exhaust still has to go past the wg flapper. The reason the housing is cut is to eliminate the possibility of the wg passage in the o2 housing from creating creep. The cut divider in the pte housing also creates turbulence in the o2 housing which in turn hurts exhaust flow out of the turbo. I cant tell you which one flows better because to the best of my knowledge, noone has ever done a comparison on the flow bench. All in all, the pte has a slightly larger a/r than the bullseye but with the divider being cut, flow is probably equivilent between the 2.

 

[311GSX]

The Bullseye Power housing is cast from stainless steel, and doesn't require that the pocket be cut out of the housing for proper wastegate flow. The PTE housing is cut as a band-aid fix for creep issues they have with the housing. But if you are set on it, we can cut the pocket out if you think it is neccessary.

I had creep issues with my old bullseye cast housing, unless the design changed I wouldn't see why stainless would make any difference. Also the flapper was rather large and when fully opened against the dumped victory 02 housing I don't think enough exhaust was by-passed giving creep. Who knows maybe a different 02 housing and it would not have been and issue. Another thing is that the outlet is slighty larger than 2.5, so if you have a 2.5 02 housing it would be a little smaller than the outlet of the turbo. unless the new housing is different

 

[92awddsm]

I had creep issues with my old bullseye cast housing, unless the design changed I wouldn't see why stainless would make any difference.

Unfortunately, the only difference the cast stainless makes is that rust doesnt exist and the manifold to turbo bolts tend to gall if the ever need to be removed. The pte housing I currently have has yet to rust and I havent had the "stripped" or galled bolts that the bullseye useres have suffered from since day 1. The verdict i have found is a 50/50 split. Yes, the pte has a low end flow problem due to the cut divider in the turbine housing but top end flow is pretty good. The bullseye housing is cast stainless which is good for 1 tightening of the the turbo to manifold bolts before you have problems and the a/r is smaller which promotes spool but hinders topend slightly.I have had both and am more satisfied with the pte over the bullseye. It is still left up to you as far as what you prefer. I am not going to suggest anything but I am only giving my first hand experience and what I have found.

 

[4g63awdtalon]

Unfortunately, the only difference the cast stainless makes is that rust doesnt exist and the manifold to turbo bolts tend to gall if the ever need to be removed. The pte housing I currently have has yet to rust and I havent had the "stripped" or galled bolts that the bullseye useres have suffered from since day 1. The verdict i have found is a 50/50 split. Yes, the pte has a low end flow problem due to the cut divider in the turbine housing but top end flow is pretty good. The bullseye housing is cast stainless which is good for 1 tightening of the the turbo to manifold bolts before you have problems and the a/r is smaller which promotes spool but hinders topend slightly.I have had both and am more satisfied with the pte over the bullseye. It is still left up to you as far as what you prefer. I am not going to suggest anything but I am only giving my first hand experience and what I have found.

Yes, I also pulled of my friends bullseye housing and all the bolts striped out. It was a huge inconvience at the time. I was excepting better quality out of the housing but i guess not.

 

[PSI2HI]

Bullseye switched materials for there steel casted turbine housings not to long ago and since we haven't had any problems w/ any bolts seizing or breaking off in the housings like we had in the past. They are also scheduled to release a SS housing sometime in the future but still no exat date.

As far as internal gates go most, there really is not one that works better than the other. We've had issue w/ both the PTE and the Bullseye wastegates, i myself dont like internal period for larger turbo's, go external and be done w/ it for good!!

As far as turbo quality in general, we quit selling PTE SCM's due to there large failure rate. Idk if they've improved on this or not in the past 6 months as i haven't ordered any, but hopefully they have.

 

[joeracer321]

Well personally I don't think they have simply because of the volume of people calling us and reporting issues they have had with PTE. One of the complaints I get about PTE are that there turbo combinations are "subject to change without notice" Individual customers may not notice, but shops do; you order multiple turbos that are supposed the same but they are different even within the same order.

 

[92awddsm]

Well personally I don't think they have simply because of the volume of people calling us and reporting issues they have had with PTE. One of the complaints I get about PTE are that there turbo combinations are "subject to change without notice" Individual customers may not notice, but shops do; you order multiple turbos that are supposed the same but they are different even within the same order.

Not trying to revive the dead but as a consumer, I found this out first hand. I ordered a 6152 and recieved a 5252 instead. The reason was that thats all they had at the moment. I would have to wait an additional 6 weeks to get the 61. well, after the original 4 week wait, I had to accept it. On the bright side, 1 year later an it is still working well. But then again, I have driven my car less than 1k miles since January, 05 so we will see if it will make the 1k mark sometime next year(07)