how much to convert a std. 50t to a Cbb

[Drasticc]

how much is it to convert a standard 50t into a CBB? turbonetics turbo.

i know the turbonetics std. and CBB chra's are rebuildable (per, the t-netics website), and the CBB upgrade is cheaper than garretts to boot (200-250 to upgrade from std vs 500ish for the garrett).


can the ceramic BB just replace the std. bearing, or does a whole new chra need to be put in place (why if its rebuildable).

thanks for any input...might be working out a deal w/ a forum member, but prefer the 50trim to be CBB..


mike

[MonsterLemon]

Just the price of the chra and lines. (yes the chra needs to be swapped) I think they go for the 900 price range if i remember right. Thats how my turbo came to be. It started out life as a std 50t

[Ben@AGP]

New CHRA.

Garrett - $895
Turbonetics - $890

[Drasticc]

ouch. thought you'd be able to upgrade just the bearing in the turbonetics.

is there a + or - to the CBB over the DBB, or vice versa?

[Ben@AGP]

It all pretty much works the same. The largest advantage by both setups is the increased thrust load.

[MonsterLemon]

Turbo's with dbb's like the gt35r and the 3076r appear to have a much meaner sound while in boost. Not sure if it has to do with the ported shroud or not but I was told its the bearings.

[Ben@AGP]

Quote: Originally Posted by MonsterLemon

Turbo's with dbb's like the gt35r and the 3076r appear to have a much meaner sound while in boost. Not sure if it has to do with the ported shroud or not but I was told its the bearings.

Ported shroud compressors sound different since it's recirculating the backflow of air that would normally cause surge. The sound has nothing to do with the bearings.

[MonsterLemon]

Quote: Originally Posted by Ben@AGP

Ported shroud compressors sound different since it's recirculating the backflow of air that would normally cause surge. The sound has nothing to do with the bearings.

Thats what I said when it came up. I was like dude u sure it isnt the ported shroud? speaking of when are u guys gonna offer one for your 50trims?

[Ben@AGP]

Ported shroud on our 50 trims makes the response more flat, and we lost 15whp across the board. It was a very bad thing.

The common misconception is that you can port shroud anything, and it makes it work better.

[Drasticc]

what do you think about a 50t/.48ar?

would it still hold power at 6500?

considering i have a built head (5angle VJ, +1/+2 valves, full race port), crower s2 cams, 70mm boomba tb, and 70mm IM...so im flowing a ton of air.
sct tuned, and have full bolt ons..

i want to make like 430hp on pump/meth (2 m5nozzles), rev to 6500, and do 122-124mph traps.

am i just out of league on this one, or is it obtainable w/ the head/cams setup?

[MonsterLemon]

Quote: Originally Posted by Ben@AGP

Ported shroud on our 50 trims makes the response more flat, and we lost 15whp across the board. It was a very bad thing.

The common misconception is that you can port shroud anything, and it makes it work better.

I was thinking of mating it with a ported shroud and a .48 a/r exh housing. I dream about different setups all the time lol. I was just curious if that would help with it surging.

[Ben@AGP]

Quote: Originally Posted by MonsterLemon

I was thinking of mating it with a ported shroud and a .48 a/r exh housing. I dream about different setups all the time lol. I was just curious if that would help with it surging.

It helps with it surging, but it makes the turbo less efficient and less effective in making the power it should.

[MonsterLemon]

Quote: Originally Posted by Ben@AGP

It helps with it surging, but it makes the turbo less efficient and less effective in making the power it should.

Good to know and another question how can the 3076r benefit from the ported shroud and not the 50trim aren't they pretty identical?

[Drasticc]

Quote: Originally Posted by Drasticc

what do you think about a 50t/.48ar?

would it still hold power at 6500?

considering i have a built head (5angle VJ, +1/+2 valves, full race port), crower s2 cams, 70mm boomba tb, and 70mm IM...so im flowing a ton of air.
sct tuned, and have full bolt ons..

i want to make like 430hp on pump/meth (2 m5nozzles), rev to 6500, and do 122-124mph traps.

am i just out of league on this one, or is it obtainable w/ the head/cams setup?

i can haz a quick answer, then back to discussion of ported shrouds?

[Ben@AGP]

Quote: Originally Posted by MonsterLemon

Good to know and another question how can the 3076r benefit from the ported shroud and not the 50trim aren't they pretty identical?

Pretty identical meaning, the only thing they share is exducer diameter.

Different inducer size, different tip height, different radius, different sweep angle, different BCI...