Bullseye / SpeedFactor 50 trim, any feedback yet?

[Coup D E'Tat]

I am looking at the RS49T or a Bullseye so your posts interest me. Are my eyes fuzzy or is something strange in your pics.....I thought the 50 trims were so big that the coolant pipe needed to be dented but your turbo has at least 1" clearance. Am I missing something here? Is your exhaust manifold different?

Have you cranked the boost over 17psi yet?

Thanks

The reason for the clearance is because the T04B compressor cover is smaller than the T04E, thus allowing "easier" fitment.

 

[prostreetdsmx1]

keep in mind the term "50trim" applies to many different turbos but something like an SCM50 will have to have the water pipe dented and a fan removed. The bullseye housing alone offers better clearance but the b-cover helps even more by have a smaller compressor back plate and cover.

 

[Rob Rohr]

The reason for the clearance is because the T04B compressor cover is smaller than the T04E, thus allowing "easier" fitment.

A ha, I knew I was missing something What kind of performance difference are we looking at between the E and B compressors, assuming the same turbine from AGP? I guess the larger E will spool slower but make more power?

EDIT: I see that AGP lists both the RS49T and RS60T as having T04E compressors. When is the smaller B used?

 

[guitarXgeek]

CMiuc12s, I just got this same turbo running in my 95 just yesterday. It's running alright so far, I really can't comment on it quite yet because I have a few other issues to take care of first. I'm not sure if the 1st gens are the same, but the compressor outlet on this turbo shoots RIGHT down at the front motor mount and my LICP is slightly kinked because of this (stock side-mount IC). I'm curious if you had the same problem and what did you do to fix this?

 

[fwdturbobov1996]

How are you holding boost ? Any creep at all. What size gate?

 

[guitarXgeek]

How are you holding boost ? Any creep at all. What size gate?

38mm internal gate that comes with the turbo. No creep whatsoever. Holds boost to redline no problem (~16psi). Once I can get ahold of some fuel injectors, I'll be able to turn the boost up a little more and hopefully reap the full benefits of this turbo.

 

[sweet97]

38mm internal gate that comes with the turbo. No creep whatsoever. Holds boost to redline no problem (~16psi). Once I can get ahold of some fuel injectors, I'll be able to turn the boost up a little more and hopefully reap the full benefits of this turbo.

Still going with 880's and DSMlink? If you had an EPROM ECU you could get a dsmchip for $115. to compensate for those big injectors. I have 650's and will run them until maxed on my 60-1 and I a told Iwill be able to do 22 psi on pump with them by Nate at SBR.

 

[guitarXgeek]

Still going with 880's and DSMlink? If you had an EPROM ECU you could get a dsmchip for $115. to compensate for those big injectors. I have 650's and will run them until maxed on my 60-1 and I a told Iwill be able to do 22 psi on pump with them by Nate at SBR.

I've been running dsmlink for a couple months now But yes I'm looking for injectors of about that size. Smallest I'd be willing to buy are 720s.

 

[fwdturbobov1996]

38mm internal gate that comes with the turbo. No creep whatsoever. Holds boost to redline no problem (~16psi). Once I can get ahold of some fuel injectors, I'll be able to turn the boost up a little more and hopefully reap the full benefits of this turbo.

Nice. I think I found my turbo for my other dsm.

 

[Burnett03]

Still going with 880's and DSMlink? If you had an EPROM ECU you could get a dsmchip for $115. to compensate for those big injectors. I have 650's and will run them until maxed on my 60-1 and I a told Iwill be able to do 22 psi on pump with them by Nate at SBR.

True. Im running my 60-1 on my 660s right now at 21psi with a very rough tune and water injection.

 

[Ludachris]

If someone does have a review to post on this turbo, please post it in the Tech Articles section, not here please:
http://www.dsmtuners.com/forums/forumdisplay.php?s=&forumid=47

 

[Black95TSIawd]

EDIT: I see that AGP lists both the RS49T and RS60T as having T04E compressors. When is the smaller B used?

you answered your own question. The B uses the T04"B" housing.

 

[eclipsegsx97979]

i have the bullseye 50 trim in my 97 gsx and its amazing.... i am getting boost spike at like 24-25 psi and i have noticed some boost creep... going over 20 psi... i might trying turnng the boost down a bit ans see what that does... other then that its amazing...

 

[eclipsegsx97979]

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[TalonFiero]

keep in mind the term "50trim" applies to many different turbos but something like an SCM50 will have to have the water pipe dented and a fan removed. The bullseye housing alone offers better clearance but the b-cover helps even more by have a smaller compressor back plate and cover.

I use the PTE "E" cover on my PTE 56 trim with mitsu style turbine housing and I easily clear my water pipe and stock fan with out any modifications.

 

[Ludachris]

Again, please post feedback about this turbo here:
http://www.dsmtuners.com/forums/forumdisplay.php?s=&forumid=47

Not in this thread.

 

[CMiuc12s]

Well I have put like 1500 miles on this turbo and it is great. Now I seem to be having a problem turning up the boost. I still have it at 17 psi and I went to tuen it up and it just stayed at 17 psi. I did a leak test and I have no leaks on new vacum lines. I rest set my manual boost controller and same thing. If you look at my other posts on this thread you can see in the pics that the wastegate arm has a nut for adjustments. I think that I may need to adjust it a little so that it doesn't open so soon and I can run higher boost levels. Has anyone else with the Bullseye TO4B 50 Trim run across this problem?

 

[1029TSG]

You practically answered your own question. Yes, the actuator is fully adjustable and only needs to be tightened to raise the boost. Simply remove the clip on the lever and pull off the actuator rod, turn it clockwise or shorten it up a turn or two. Then reinstall it on the lever. This will be much harder to "stretch" back on so get yourself a pair of pliers or channel locks. This extra pre-load on the spring will help to raise your boost. Cantact me directly if you have any more questions.

 

[CMiuc12s]

Thanks 1029TSG, I figured that I would have to adjust it but was not 100% sure. I really don't have time to do it to night but I can get to it tomorrow and I will reply back with the results.

 

[CMiuc12s]

I said screw it and it only took me like 5 minutes to adjust the rod. Then I went out and did a nice 3 gear pull at 20 psi. Thank you 1029TSG for the info. Now I need to go and put together the data from the pull. Later!

 

[1029TSG]

No problem, keep us posted.

 

[CMiuc12s]

Well, this thing pulls like a sumbitach!!!!! It just screams from 4000 all the way to 7200 rpms. I think that if I were to run an external dump, I'd for sure get pulled over for being too loud! I am hitting full boost at 4000 rpm and I think that maybe if I port the turbine housing I may gain a few hundred rpms in spool up time. I'm getting good boost control, no creeping. Alittle laggie, but liveable. I would definitly recomend this over the PTE 50 Trim. Now to turn it up a little more, 24psi. I will retune the car for 24 psi and run it tonight around town and see what kinda trouble I can get into, . I will repost tomorrow on how it handles. Laters!

 

[1029TSG]

Yeah, that sounds more like it. Please don't port it that will only slow down your spool.

 

[CMiuc12s]

Well how would I go about trying to get it to spool quicker? A small shot of NOS? Water Injection?

 

[1029TSG]

I would first try some more tuning (timing) and/or dyno time, then try some more engine mods.