Advice on my custom built ct26!!

[pete05]

I have a ct26 that is fitted with a to4 centre and has a to4 p trim turbine in the ct26 rear housing and in the front housing it has a T04B Super V Trim Comp wheel, does anyone have any idea what sort of performance I could expect from this turbo and how many rpm it going to take to bring it on boost?

 

[IndigoMKII]

can you measure the wheels? inducer/exducer?

 

[pete05]

The rear wheel is 2.881 and 2.515 as best I can tell I will try and get the front wheel in a few minutes, I got to pick the kids up from school.

ok front wheel is 2.755 and 2.17

If I have measured them correctly

 

[hvyman]

55mm front wheel and 63mm turbine. Should be fine.

 

[pete05]

What sort of rpm for full boost do you think? Will this do 300 kw at the wheels as that's my aim

 

[IndigoMKII]

What sort of rpm for full boost do you think? Will this do 300 kw at the wheels as that's my aim

More than likely.

 

[Poodles]

I remember this "upgrade" being kicked around years ago and some people used them. The main issue is the compressor housing is too small causing true compressor surge and causing issues (snapped shafts). As the wheels don't look THAT big on this particular one, it might be fine. Keep in mind the stock CT shaft is actually beefier than a normal garrett...

 

[pete05]

I thought it was the other way around the garrett shaft was bigger than the ct26

 

[hvyman]

No. The ct shaft is pretty big. Bigger than most bigger turbos.

 

[IndigoMKII]

I just noticed a small defect on the compressor wheel. Looks as if FOD has happened.

 

[Poodles]

I thought it was the other way around the garrett shaft was bigger than the ct26

Nope. It's why the garrett wheels have to be bored out to fit the CT's shaft.

 

[SeeUSmile]

I'd expect this turbo to be around the 'mid-range' category.

 

[NashMan]

 

[pete05]

Is that meant to be the same turbo?