Quote:
Originally Posted by Coheed
So if the water pump cavitates around 7k, run a larger pulley and push the engine to 8k. Perhaps Suby was wise here and developed a more efficient pump.
If not, there is a pretty easy way to modify the factory pump to suit higher rpm use while still maintaining good flow at lower rpm. But the good low-end approach is nice and will provide a very fun, responsive, and hopefully reliable setup. 300whp from a t25 size turbo is a riot. Now, I'm not sure if this kit will nail that on pump gas, but having a 300whp powerband makes this car really quick. Deceivingly quick when the powerband starts under 3k rpm and pulls to 7500-8000.
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I think Don @ AP has been running his turbo kit to 9000RPM regularly... I haven't heard of him modifying the stock pump at all....