turbo questions:size and application

[02TurboBusa]

Ok So I just had a seal go bad in my turbo, it was a Mr. Turbo street kit, and I have a few questions regarding replacing/repairing it. I have 2 brand new T3/T4 turbos, not too sure of the specifics on the turbos, but I was wondering if I would be able to just swap the turbos and retune the bike... or if there are specific turbos that I have to get to fit the Hayabusa. Also I was wondering if it is possible/expensive to repair seals in the turbos. Also anyone know where I can get a replacement turbo if i need to at a reasonable price? thanks for your help.

 

[Hit Man]

If its a Garrett style t3/t4 turbo its $200-280 to rebuild. A Garrett turbo new is $500-700 , a new center section is also an option. The exhaust bolt pattern is what you need to compare also to reuse your pipe.

 

[Gixer]

Hi

I have a T3/T4, exhaust housing A / R .48.
It seems to me very little because the boost starts of 5500 RPM?
Would the A / R .63 be ok?
Thanks

 

[Junior Bomtempo]

Hello, I have a turbo kit hayabusa 99/07 stage 2, and I want to transport this kit for a hayabusa 2012, (1340), which part I need to replace the kit?

Turbo Kit velocity racing

 

[Junior Bomtempo]

Hello, I have a turbo kit hayabusa 99/07 stage 2, and I want to transport this kit for a hayabusa 2012, (1340), which part I need to replace the kit?

Turbo Kit velocity racing

 

[lzbrown]

I think a gt28r would be perfect for a 300hp quick spooling turbo. But that turbo would be costly and you would need a costly header. You could get a t3/t04e 57 trim which isn't ball bearing but would have the same spool characteristics as the 28r but would costs hundreds less as would the header. Basically, the stage 1 rcc turbo would be right up your alley. Then you could build the motor,keep the turbo and make over 400hp and keep cost down.

Or you could do like I did and get the super ultra and make 640hp and drive it on the street daily. Only maintainance really is a frequent oil change. I mean you'll always be smelling things at stop lights or listening for weird noises but that's all coming natural when you ride.

 

[OZBooster]

Junior, you will need to make some small changes to up pipe and general fit but the whole kit can be made fit,
not perfect , the throttlebodies have a different spacing, you can just stretch the silicone boots and use the gen 1 plenum on the gen 2 , or sell it and buy the correct one
gen 1 are 80mm centres 80-80-80 , gen 2 are 75 -90- 75
gen 2 also lets you use editor for fuel etc , so you can fit a 1:1 regulator and have much better fuel control than the common gen 1 fmu/powercommander combo

 

[ianjoub]

Ace is correct in what he says above, but I prefer a smaller turbo for the street. If I'm running 60mph in 6th gear when I roll into my gt2871R I'm boosting by 3500rpms and at full boost by 5000rpms. No need to downshift here...lol. Also I can shortshift{8000rpms} going through the gears and rip anyones head off with a normal bike. My wife has a z1000 kawasaki and I used to do roll ons with her with my old 01 stage 3 Velocity bike from 60mph in 6th gear and she would jump me 20 bike lengths before the big 35r would finally spool up. Now she jumps me 3 feet and then it's over. Think about what you really want to do with your set up.

Ok, pulling thiss thread up from the grave....

I had my 99 busa making 338 at the rear wheel(s). It is in a car. My Garrett turbo died, bearing went/ate up housing. I don't know what the old one was as I bought the turbo bike used. I bought a new GT2871r and installed it. My Tial 38mm wastegate does not seem capable of doing its job now. I was trying to regulate to 13 psi of boost. When it hits 7,000 rpm, the boost gauge spikes to 28psi+, the limit of gauge. I disassembled the wastegate, everything seems to be working fine.

Is this wastegate simply insufficient for the job I am asking it to do? Will going to a 50mm wastegate be my solution?

Any help will be greatly appreciated.

 

[oldgixxer]

Something is wrong there;I have a GT28 and a Tial 38mm WG and zero issues. Is it a legit Tial or fake?

 

[ianjoub]

Something is wrong there;I have a GT28 and a Tial 38mm WG and zero issues. Is it a legit Tial or fake?

Legit. It worked with the old turbo, but not with the new. I think my piping to the wastegate is too restrictive with this new turbo that is far more efficient. I decided to refabricate that before I go any farther.