Gotcha, if I could get my hands on a 20G wheel I could model it pretty easy. That's what I do for a living...

 

I have a 2005 evo so i would have the 10.5 housing right??? I wodner if its worth it for me to trade it in or just to keep my stock turbo for when i sell the car. maybe I'll just sell the car with this turbo and say its stock???

 

Hey they are not charging you for the 1st 2 batches of wheels are they? You said the Price was getting redicilous, does that mean they raised the price? Do you have to machine the compressor housing to allow more flow? And if not will the 20G be a less efficient turbo as the housing is smaller?


How with this turbo compair to the BR Super 20G?


Thanx, take your time and answer them 1 at a time

 

No man, pay attention.

If you do any sort of search for information on the 10.5 you'll find out it DIDN'T come on the 2005 - its from the TME Evo 6.5. As for selling the stocker, stock turbos are going for about $250-$300. Probably a better idea to keep it. Especially since money is no object to you.

As for lying to any buyer about your car (or parts for that matter).

-M

 

Sounds like you are both confused...

-The 2005 model year has the 10.5 housing
-This 20g upgrade is an upgrade to your existing turbo, not a brand new one. However, you should be able to buy a whole new one when this comes out.

 

...yes they are.

 

To re-confirm, am i correct to say that this hybrid turbo will contain

TD05 Ti/aluminide turbine wheel with a 20G housing with a 20G non-ti/aluminide wheel with a 10.5t hotside?

Do we need to change the internal wastegate to a bigger flapper? If so what size..

Please advise...

 

Close...

Its a 16G compressor cover, I suppose depending on the core it could be an 03 or 05 cover modified for the 20G wheel to fit..

Here's the rundown of what this gets..

20G compressor wheel, 16G compressor cover modded to fit
TiAL (Titanium) Impeller wheel on the hot side
10.5t Hot side housing (Early or late style, Dunno)

From previous posts I am under the impression that some porting or at least cleanup will be done to help even things out.

What you basically end up getting is a

TD05HRA-16G6-10.5t turbo with a 20G wheel (and mods to fit it)

And I think the user has choices of what he wants upgraded if he sends a turbo for upgrade. Also I think price will likely vary based on what you send him to start with as a core. Sine an 03 turbo has a 9.8 housing it isn't of much value to him and the upgrade would obviously involve replacing it.

I just don't want you guys to get confused.. Basically I have an upgraded turbo which is the same basic setup, except without the 20G [edit: COMPRESSOR not Turbine LOL] wheel.. It has a 10.5 early style hot-side housing, Titanium impeller CHRA (centersection of the turbo from a EvoVII RS2), and a 2005 Evo MR compressor cover.. This entire assembly will be shipped to DAve for him to upgrade the compressor wheel to a 20G and the ancillary mods.. In my case the only new part should be the 20G wheel, install, and misc machining, and porting if available. I want my actual turbo to be upgraded and not used as a core exchange.

 

Malibu,
I believe, based on the pricing structure listed by Dave that you do not automatically get a 10.5 housing. It will depend on what you send him for the updgrade. If you have an 03 then you get an 03 turbo upgraded with the 20G wheel. Please correct me if I am wrong.

Pricing:
Send in your turbo off your car, to upgrade to the 20g wheel-$840
Do not send in any core-$1260
Do not send in any core and get the 10.5 housing and ti/al turbine wheel and 20g compressor wheel-$1540

 

What will the estimated HP/reliability differences be between the $840 upgrade versus the $1540 upgrade? Dave, have you considered a package deal w/an intake&exhaust manifold, O2 housing, and/or intercooler in addition to the 20G mod? Just a thought.

-J

 

Honestly I don't know for sure anymore.. When I was asking pricing, it was fairly specific to my combo.. However that looks to be correct.

But the good news is I'm sure we'll hear more details soon enough..

I'm getting itchy, I usually tear my car down in February-March to get it back together in April and tweaked for the summer.. I have alot of stuff coming together at the same time now so Its really exciting for me.

 

Yes, in a way. This set up, if sucessful, looks to be replacing the BR440 turbo kit.

Dont forget, Dave *Highly Recommends* following his upgrade path before approaching this hybrid.

Terry S

 

Correct me if I'm wrong but for the 20G upgrade the "minimum" required pre-existing modifications include:

1) tuning- ecu flash (and/or) safcII (or) stand alone ecu
2) 660cc injectors
3) walbro 255
4) boost controller

everything else is "bling" - altough w/o a doubt beneficial in making more power...

4-BNGR

 

Absolute minimum.. earlier in the thread it was pointed out that you should already be more or less at the buschur stage 4 setup (or equivalent) to make best use of this upgrade.. I can see that since the upgraded pipes and intercooler will not be the next restriction you find after upgrading the turbo.. I think the only exception is cams, I have found that cams are a good addition, but not crucial if you don't want to do them..

 

I GOT A PROTOTYPE 20G WHEEL!! This one looks good enough to atleast install into a turbo. I overnighted it out to the turbo shop tonight, they are going to put it together on Monday or Tuesday and overnight it back for testing!!

The wheel was close enough to what we are looking for that my eye can't pick up what needs changed, so it is worth a shot at trying it out.

Things are looking better right now, that's for sure.

We are testing some custom flashes with Al here this weekend and then next weekend the RS is going to start really getting thrashed. (as if the 178 dyno pulls I have already put on it aren't enough)

I am not going to be offering a package deal for the turbo with anything else except maybe the new ported/coated manifold, 02 housing and turbine housings.

Stay tuned...

David Buschur
www.buschurracing.com