Turbo options.............

[alexB]

I am waiting on my thunder turbo manifold to show up. I have noticed alot of oil buildup on the bottom of my turbo between the exhaust and intake compressor housings. I am trying to find a good turbo to replace my stock one with. I can go with an externally wastegated if needed. I have a good friend who says we can modify the thunder manifold for an external wastegate pretty easily. I am not wanting to hack it up alot though. I also would like to keep my charge piping the same. Any anybody have any ideas?

 

[gone_fishin]

I am waiting on my thunder turbo manifold to show up. I have noticed alot of oil buildup on the bottom of my turbo between the exhaust and intake compressor housings. I am trying to find a good turbo to replace my stock one with. I can go with an externally wastegated if needed. I have a good friend who says we can modify the thunder manifold for an external wastegate pretty easily. I am not wanting to hack it up alot though. I also would like to keep my charge piping the same. Any anybody have any ideas?

Sounds like your lower oil seal is going. I'd advise sticking with your existing turbo-- as it's a great fit for the MSP and low boost applications. I don't believe there is another garrett turbo you can switch to without creating flange incompatibilities and differences in the routing of the charge and down piping. That beautiful thunder manifold would be a conversation piece on your coffee table.

 

[gone_fishin]

Nearly forgot, modifying your thunder manifold to accommodate an external wastegate is certainly a possibility. But again, if this is a low boost application, why is it necessary? Seems like a lot of wasted expense that could have been invested elsewhere.

 

[alexB]

Sounds like your lower oil seal is going. I'd advise sticking with your existing turbo--

How hard would that be to fix? I have replaced the oil return line bfore because it had a slit in it. It was causing oil leakage all over the place. This seems different. Oil seems to be coming from somewhere else? Ill try to get a pic.

 

[gone_fishin]

You'd nearly have a third of the job done by removing the stock calloway manifold, which was already in the plans from what it sounds like.

 

[alexB]

You'd nearly have a third of the job done by removing the stock calloway manifold, which was already in the plans from what it sounds like.

Ok I like to consider myself pretty knowledgeable about cars but I am lost when you say lower oil seal. I have removed the manifold once before when I put my GHL turbo back on. Wasnt too bad. But what all is involved in replacing the lower oil seal? Parts,costs, and difficulty?

 

[gone_fishin]

Call the dealership, have the parts department fax you the parts diagram of the turbo assem for an 03/03.5 mazdaspeed protege to reference before you start wrenching. Tell them you need to see everything between the s pipe and the lower flange of the manifold. Also reference the shop manual if you have one or can get a hold of one. Check the troubleshooting section for oil leakage in the area of the turbo you're experiencing it. The manual should be able to definitively pinpoint the problem.

Gaskets/seals are generally inexpensive. Have mazda give you a quote by referencing the part numbers from the diagram. NAPA is often times much cheaper. Local parts distributors can often times be even cheaper than NAPA.

 

[sandspeed]

Since the thunder manifold comes with a T2 flange your turbo options are limited. Also, since the flange is at an angle, a big turbo won't fit. If I were you I would opt for the GT28R, I think atpturbo makes an external wastegate turbine for the it now but not 100% sure.
Go with external wastegate you will be happier.

 

[gone_fishin]

By the way, is your GHL turbo-back putting out abnormal ammounts of smoke?

 

[alexB]

By the way, is your GHL turbo-back putting out abnormal ammounts of smoke?

No smoke but my exhaust note has seemed a little more poppy or choppy. However you wanna explain it. Barely noticeable at all. I have noticed my car seems to be running shittier recently. Almost like a flat spot in power in mid range rpms. at about 3500 and above.

 

[alexB]

I have been wanting a shop manual actually. Where would I get one from?

 

[gone_fishin]

I have been wanting a shop manual actually. Where would I get one from?

Haynes manuals are decent for your run-of-the-mill wrenching and diagnostics-- they can be had at any pep boy's or autozone. However, I'm almost positive they never made one solely for the MSP. In fact, I believe their one manual covers all third gen proteges (mine is for 1995 and later). So quite obviously detail and specification will be lacking.

When you're getting down to the nitty-gritty details and you need accurate and definitive schematics/diagrams and specifications, you need the shop manual for your respective year. Mazda published shop manuals for the 99-00 proteges, 01-02, and a unique manual for the Mazdaspeed protege. It is possible for you to purchase them through the dealership, however, the price is OUTRAGEOUS (3-400 bucks) and there's a 4-6 week waiting period. Your best bet is to browse around ebay for the manuals themselves-- they crop up every now and then.

Or the cheap alternative-- physically going to the dealership and asking to see the MSP manual; make photocopies of what you need.

Additionally, an online version exists here, though I find it to be lacking detail in many areas.

protege5.ugly.net

 

[orng1]

If you want to make power saw of the T25 flange and put on a T3 and go for broke big boost. If you just want a turbo that doesn't leak fix the one you have, it's real comoin for it to leak on this car. I just tightened the fitting on my oil feed line a little and it stopped leaking but you may have a diferent leak.

 

[ViDeo^_^kiD]

I can get you a brand new Garrett GT25R for $500 if you need one...and want to go that route. Rebuilding one would cost that much...if the housing is even in good shape.

 

[magnumP5]

I can get you a brand new Garrett GT25R for $500 if you need one...and want to go that route. Rebuilding one would cost that much...if the housing is even in good shape.

Sorry to keep following you around but where and how can you do this? Is it indeed the GT2554R turbo used by the MSP? The only ones I can find are the ones with the bolt-on flange on the turbine inlet/outlet. I might need a new one in the near future and $500 for a new one is great...

 

[ForceFed]

Sorry to keep following you around but where and how can you do this? Is it indeed the GT2554R turbo used by the MSP? The only ones I can find are the ones with the bolt-on flange on the turbine inlet/outlet. I might need a new one in the near future and $500 for a new one is great...

I'm with you..All Ihave seen is the Nissan one.