Question about T25 vs. T28 turbo

[Blown_xa]

If your goal is 250 to 300whp, I would steer away from a small turbo. I have been through many turbo sizes.... The 250 to 300whp range becomes a fight on "usable" power. Throw some valve springs in the head if the bottom end is built, and run a turbo rated for around 400hp. Im currently running a t3/4 50 trim with rev limiter set to 8000rpm and my car is easy to drive fast without blowing the tires away. I used to run smaller turbos at the same power level, and it was nothing but a pedal dance to keep traction unless I was at the strip rocking drag slicks. Stock head with valvesprings, 8k rpm with a turbo rated for 350 to 425hp... That's the ticket

[why?]

Originally Posted by Blown_xa

If your goal is 250 to 300whp, I would steer away from a small turbo. I have been through many turbo sizes.... The 250 to 300whp range becomes a fight on "usable" power. Throw some valve springs in the head if the bottom end is built, and run a turbo rated for around 400hp. Im currently running a t3/4 50 trim with rev limiter set to 8000rpm and my car is easy to drive fast without blowing the tires away. I used to run smaller turbos at the same power level, and it was nothing but a pedal dance to keep traction unless I was at the strip rocking drag slicks. Stock head with valvesprings, 8k rpm with a turbo rated for 350 to 425hp... That's the ticket

how long do you think the engine will last revving to 8k?

[Blown_xa]

Originally Posted by why?

how long do you think the engine will last revving to 8k?

Not sure, but the rods are what would take the abuse mostly..'and even the less expensive rods are still rated for 700HP. Beyond that, the oil pump keeps up fine.