I am narrowing down my turbo choices and i have com to a few questions when selecting a Turbine housing. The turbo will either be a T-66 or a 62-1. The housings that i see are "on center" and Tangential. The on center housing already has a bolt patern for the down pipe, but the tangential flows 5% better. Problem is the "v-band" exaust connection.

I see how it slides into the grove, it is just clamped to the downpipe or is it welded or what? (how is this connection best made) what have others done?

I have the racing beat turbo back exhaust with the three inch down pipe, what sort or " massaging" will be nessary.

Manifold is the HKS cast. Anyone remember if it is divided or not? (it is in route to my house and i dont remember)



Dave
87 TII (series V conversion)

 

hmmmm`gimme 2 minutes

 

ok it was a little longer

Here is the turbine housing with Vband flange welded on


Here is the Vband adapter (you weld your downpipe on this piece )


Here is the Clamp


Here is the Vband adapter placed on the vband flange


And Here is the vband adapter and the clamp together


And Here is the total package

 

Greg you don't play do you .... I wonder how many people will ask this question now that you given excellent pictures.

Dave: You have an interesting decision. You mention the 62-1 or the T66 ... I think there are different options in front of you that you are leaving out.

 

well, i have done a lot of looking around and i have a friend that has a 62-1 that is a ball bearing turbo with a 1.15 turbine housing. this should make plenty of power for me to make 400rwhp. If i cannot wrangle a good deal with him i wanted to get a t04r.

After reading the lengthy thread about the t04r i did some looking at the actual compressor maps and compressor wheels. the consensus was that you should not spend a lot of money on the t04r when you can get somthing close in the "T" family for much less. (ie the t66 (slightly smaller, but spins up faster), and the t70). i think someone said that the t04r is ~ T-68.

The T-66 will be a better option than the 62-1 for a later engine upgrade, and if i can afford it i want to go ball bearing.

well that is my .02.

anyone else care to place their pennys in the jar?

dave
87 TII (Series V Conversion)

 

thanx very much greg.. great pics

dave

 

Hey Dave, The good thing about the garrett style turbos is that you can play with almost every part of the turbo. A T66 is a good turbo but you are going to suffer with lag (if that matters) I would still stay in the T series breed of turbos. If you get a T62 as opposed to a 62-1 then you still have the option to upgrade to any of the larger 61-72 mm compressors. If you get a 62-1 (60 series) then you will be limited to the size of the compressor. For example. Say you get a T62, you make 430rwhp and you feel that the turbo with that compressor cannot go further and you want to make 550 hp. You can simply replace the compressor wheel with a 70 or something and machine the compressor housing to match and viola. you have a T70 now. If you get the 60 series turbo, then you are limited to how big of a compressor you can run in the 60 "frame". Thats why I am partial towards the Tseries turbos with smaller comp wheels, because the room for upgrading is virtually limitless. There have been 80mm compressos shoved in that frame!!!

 

Several people make it. What size are you looking for?

 

Greg is right there is different company that make them.
But one company I've seen sell a 3" v-band complete for $80.00. I am not sure if you CAN FIND it cheaper but that's what i've seen

Manny

 

To shrink the exhaust piping you have to get an exhaust adapter, you cant do it with the vband. Also, what size AR are you running? You might not be able to use a 4"

 

I saw just the V-band adapter for like$28.00 for a 3".

Manny

 

The whole vband setup (Flange, Clamp and Adapter (downpipe part) is around $120.

http://64.225.76.178/catalog/inst_accessories.html