T25->convert->T-28?????

[RED_AWD_BLUR]

Is it possible for the 2G dsm community to put a T28 compperssor wheel in our T25? what are the differences between the two? would it be cheapper for us to do this and where could we order it?

 

[Coldandafraid]

this is exactly what people do. Except you just buy the T28 from a vendor for $750, and send them your old T25 and they rebate you $200.

 

[RED_AWD_BLUR]

yeah but like most aftermarket vendors they are probably gouging. If you can cut the middle man you can save money.

 

[nine5raptor]

can you balance your unit at 200,000 rpm after you do the swap?

better let the pros. handle it.

 

[hostile]

Most non performance turbo places will balance the turbo. A lot of money comes from performance companys. I am sure somebody who works on turbos for the oil field industry wouldnt charge as much to change a wheel and balance it.

 

[nine5raptor]

you could even change the wheel yourself and just take it in to be balanced.

 

[RED_AWD_BLUR]

that's what I am talkn' about! now where can I order the wheel from?

 

[MaineDSM]

Originally posted by RED_AWD_BLUR
that's what I am talkn' about! now where can I order the wheel from?

Good luck. Last time I knew, the housings on the T25 needed to be bored out to fit the T28 wheels. Also, the inlet and outlet on my FP T28/28 is bigger than on my T25. They supposedly use a better thrust bearing too.

You get a lot more than just a wheel swapped in for your $750.

 

[LucidEclipse]

I found a t28 on the trader for 260 bucks. It didn't have any shaft play or anything. Then I sold my t25 for 180, but the speeding tickets made up the difference

 

[Ben K]

If it were only that easy.

 

[swordfish]

Ah.. come one Ben.. You just file a little off the compressor housing here, file a little off there, little dremel here little epoxy there. . . . take off the old wheel.... bolt the new one on and then put it back on the car. You guys dont need those fancy machines like the VSR balancer and stuff. Just take one wheel off your bench grinder and duck tape the tubine wheel to it so it can spin it up so that you know its balanced. :laugh: :laugh: :laugh: Oh yeah, and you can use a smoke bomb to make the wind tunnel effect around the compressor while you have it taped to the bench grinder

jeff

 

[Ben K]

Jeff,

Thanks for letting the secret out of the bag. Now we are going out of business.

 

[RED_AWD_BLUR]

The wheels don't come balanced? they should. I can get a flywheel that is balanced. Why can't I get a wheel that is balanced. So let me get this straight, Garrett makes unbalanced compressor wheels? that seems kinda dum. My Fidanza Flywheel was balance just fine. in fact balancing an entire system is less effective because you can still have moments and things that you can't get out. If everything was balanced around the axis it was spinning around to begin with you should be able to slap it together... Oh and don't you guys think just maybe you are getting a bias opinoin from the vendors?

 

[Ben K]

Originally posted by RED_AWD_BLUR
The wheels don't come balanced?

Sure, they do.

in fact balancing an entire system is less effective because you can still have moments and things that you can't get out.

What? I can't wait for this explanation.

If everything was balanced around the axis it was spinning around to begin with you should be able to slap it together... Oh and don't you guys think just maybe you are getting a bias opinoin from the vendors?

Yes, it just slaps together. No special tools needed. No lathe needed to machine the dish in the center housing, and end housings. It just slaps together.

We can do a little experiment here. I'll sell you a "balanced" T28 compressor wheel for let's say $100. Even a brand new one. Once you receive it you can do a VFAQ on how to just slap together a T28 for $100. Let's say you actually got the machining somewhat correct on the center housing and compressor housing bore. Now you would have a turbo that performed even worse than your T25.

 

[SoCaliEclipse]

Originally posted by RED_AWD_BLUR
The wheels don't come balanced? they should. I can get a flywheel that is balanced. Why can't I get a wheel that is balanced. So let me get this straight, Garrett makes unbalanced compressor wheels? that seems kinda dum. My Fidanza Flywheel was balance just fine. in fact balancing an entire system is less effective because you can still have moments and things that you can't get out. If everything was balanced around the axis it was spinning around to begin with you should be able to slap it together... Oh and don't you guys think just maybe you are getting a bias opinoin from the vendors?

I see that we have another do-it-yourself guy that wants to save some money

You also have your balance shafts removed too! I see that balance isnt a big concern of yours. Maybe an unbalanced T28 is right for you . I know that removing balance shafts adds hp to the wheels and all, but i like to keep everything BALANCED which is why Mitsu put them there. I would really just say don't be cheap and pay someone to do it for you. Even assuming that you have a 10k+tool kit in your garage to get all this stuff done properly, the liabilty is a risk you might be the first to make.

Let's assume your "custom t28" has some problems....who are you going to call for tech support? NO ONE And you cant return it either if you do something like that cause they can just say you did it wrong and its your fault the center cartrige fell apart

When you pay the $550 (after $200 core charge from most places) you end up saving yourself money in the long run. If this were as easy as you presume, there would be TONS of how-to threads about this. I see that you only have like 36 posts since you've been here, and its all good to ask around, but when vendors and other guys that have been here longer give you advice, best bet is to listen to them or they wont help anymore.


VENDORS: GET ON THIS BANDWAGON!!!!! (selling center sections) You will make TWICE the profit! You can sell them the center sections for like 175 (or whatever percentage markup you charge over your cost....don't worry i know you guys have markup, and its alright with me, i'll make you your money so you can keep me happy , then you can charge them $80/hr for phone tech support. Then when they have more problems and they come back to you with a broken turbo you can A) Repeat the process again (they'd be morons if they tried again) B) Sell them a brand new turbo that YOU built or C) Open an engine rebuild shop as well so that then they throw a compressor blade into their intake manifold, you can rebuild their motor for them as well

Sorry about the long@$$ post, this was just my way of saying dont be cheap and have the pros do it

Regards,
Brian

 

[Ed98GST]

Man, that sucks! I guess this means that I can't slap together a 60-1 and .43 with the Home Depot epoxy I bought last night? I was even going to use some silver RTV to help seal it, being the good little tuner I am. You know, I had planned on the process of writing a vfaq on how to attach the turbo to the front axle while the car's on jack stands to balance it. Only the best for me!

Please don't take this as a flame -- just trying to have a little fun at work and provide some entertainment to anyone who reads this.

 

[SoCaliEclipse]

Originally posted by Ed98GST
Man, that sucks! I guess this means that I can't slap together a 60-1 and .43 with the Home Depot epoxy I bought last night? I was even going to use some silver RTV to help seal it, being the good little tuner I am. You know, I had planned on the process of writing a vfaq on how to attach the turbo to the front axle while the car's on jack stands to balance it. Only the best for me!

Please don't take this as a flame -- just trying to have a little fun at work and provide some entertainment to anyone who reads this.

, hahahaha, you DID provide me with some good laughs man! Dont forget the JB weld, it wouldnt be complete without that

Brian

 

[DCJ98GST]

Ben,

So at what rpm do you guys balance your turbos to. And do think that most vendors meet the same standards or are there differences.

 

[RED_AWD_BLUR]

Well if you can find me a vendor that sells them for $550 I can swing that but $750 after $125 core rebate I can't. Doesn't any one try any more I mean you must admit it dosen't hurt to ask. besides if every one had invented everything already 100 yrs ago we wouldn't have fuel injection or turbos etc...

 

[SoCaliEclipse]

I think that commomlpace price on the T28 is 750 plus core charge. Which means that you pay them 750 and when they receive your old turbo, the will either credit your visa card or mail you a check back for the difference. I have seen it range from $50-$200 core charge. I talked a lot with Wade at TC.com b'c they have really agressive pricing. But you honestly cant go wrong with any major seller out there (AGP, FP, TC, SBR, etc)

Good luck man!

Brian