Thread: Waste gate options? on a 6262

Hey guys im about to purchase my EQL manifold from Pro-tec but wanted input on what Waste gate flange togo with..What are your experiences with the tial 38mm. or 44mm on a 6262, this will mostly be a track/drag car streeted on occasion..my power goals are
500ish HP...thanks

im not very turbo savy but i would probably go for something bigger than a 38mm since you plan on going for 500ish i would think the 44mm to 50mm should be good for what you want

My general rule is that the more power you want to make, the smaller the wastegate you need. That doesn't mean you won't need a large gate on a large turbo though, as the large compressor will move some serious air regardless.

If you're not concerned with low boost, you could be okay with the 38mm gate. If you want to have low boost settings or have ultimate control of any creep up top you will want to go larger than 38mm.

For what it's worth, we put two 44mm wastegates on the 475WHP, GT3582R-sized turbo BMW... =P

I think if I were you I'd do the 44mm gate all things considered if that doesn't cause any issues. It should be the sweet spot between the 38mm and 60mm options. =]

have the manifold flanged for the 44mm gate.

interesting so now im concerned because i only want to run my car on 10lbs maybe one in a blue moon up it but from the most part that's what ill be dailying it on i just bought a tial 38mm and im running a gt30 so would that set up cause any kind problems like boost creeps. also running hallman mbc

It is tough to say. Every setup is a bit different. 10 psi on a GT30 is pretty low. You may have some issues getting down that low with a 38mm gate. I would do some more research on that combo and boost level and see what you find others experiences to be with similar engine/turbo/wastegate combos.

I am using a 40mm jgs tools gate with my gt30. I have the 10psi spring in the waste gate right now. I have some creep due to the waste gate placement but that only happens at high rpm. If I were to change the waste gate location I would not have any creep at all. with a mbc you are going to have a tough time with spiking.

well i haven't gotten to test out the car with the new set up yet so i guess well have to see but its sounds like i may need to increase my boost higher to be safe thanks guys sorry for the thread jack

Your right until you run the setup you will not know. I did not see the creep until I was on the dyno. that being said you can get around boost creep by dropping in a lower pressure spring and using a boost controller to raise the pressure.

if thats the case it should be ok i believe im only running a .4 bar spring so i wont even bother changing the spring ill just increase boost a bit and go from there