Hi Guys

I am planning to buy the following turbo.

Garrett GT47R Turbo ( aka GT4708R )

Description copied from the Himni Racing Website:

This turbo is capable of over 1200 HP. Real Garrett Dual Ball Bearing GT4708R (GT47R) Turbo assembly. A Monster Turbo for big power. Great for drag racing where fast spool is needed. Comes with a T6 undivided exhaust housing with 5.00" V-BAND exit. Huge anti-surge compressor housing with 6.00" inlet and 3.50" slip-on outlet. Compressor wheel diameter is 108mm exd. / 80.8mm ind. Your pick of exhaust housing A/R.

Note:: ALL of our Garrett GT turbochargers come Fully Balanced from the factory & have the Manufacturers Warranty.

The turbo part number change based on the turbine & compressor housing selected, CHRA numbers only, etc. The following Garrett P/N's applies to this turbo.
769112
769112-1
769112-2
769112-3
769112-4

Compressor:
-Wheel: 108.0mm exd./80.7mm ind w/ 56 trim
-Housing A/R: .69 A/R
-Housing Style: 6" inlet anti-surge, 3.5" outlet

Turbine / Exhaust:
-Wheel: 92.7mm w/ 82 trim
-Housing 1.23 / 1.39
-Housing Style: T6 w/ 5" v-band exit.

Center Section:
-Dual Stainless Steel Ball Bearings
-Oil & Water Cooled

What do you guys think of this turbo?

I am really loving it, but I would like to hear from my fellow rotorheads

Cheers
Mir

 

What are your goals and main use for the car?

-J

 

Hi Mate

I am hoping for a 1000hp. The car is a weekend car and I do drag and track her every now and then.

Cheers

 

sounds like it's pretty much same as a BW S480 on the compressor side, but a little smaller on the exhaust side than the BW. It's hard to see you making 1000 hp with that on a 20B, but you may want to look at the S480 as a cheaper option ($1K or so)

 

how would a bw s475 performe?
it has a 1.32 a/r
96mm exhaustwheel.
75mm compressorwheel
and a t06 flange

im looking for a turbo that's quick on boost. making around 700rwhp.
running a 20b with a large streetport rev up 8000/8500 rpm
is this overkill or will it choke the engine ?

 

The 4708R will max around 900whp. I would recommend the 4718R (88mm) with the largest turbine housing, which I believe is a 1.39.


That will max out just over 700whp. That turbine side will definitely be sufficient for your motor/power goal.