internal wastegate question
took apart my wastegate tonite after testing it a few days ago at 10-11psi opening pressure.
i decided i would open it up and replace the spring to achieve a lower boost level (5psi) so that there was more room for adjustability using a mbc and so that i could run the turbo before going to the dyno not worrying about blowing it. but anyway, i took it apart and found a spring roughly 1.5 inches in diameter and 3.5 inches long. logically, if you cut the spring in half it would reduce the pressure level that it opens at by 50%. and this is possible because the spring is already 50% tensioned when it is inside the wastegate, so it would still be tight inside the wastegate just less tension. either that or would you recommend getting a new spring with less tension yet still keeping the same dimentions? if cutting the the spring seems like a logical solution, how would you recommend cutting the spring. or how much would you recommend taking off? |
Re:internal wastegate question
I would take about 1/4 inch off, reseal it and test it..
Jeff |
Re:internal wastegate question
how do you cut it and how do you reseal it. thanks
|
Re:internal wastegate question
im gonna bend the lip back with a hammer the best i can and probably use some sort of gasket maker or liquid gasket to seal it so its air tight.
|
Re:internal wastegate question
the gasket maker crap doesn't work that great, so i think im gonna use some jb weld.
but i grinded off about a half inch to an inch of the spring and it went from 10-11psi down to 6-7psi. that seems to be reasonably safe to run until i get a fuel pump and some 450cc injectors. btw, exactly what years were second generation dsm's? and also, just to clarify, the injectors came in turbo'd eclipses? |
Re:internal wastegate question
second gen's were from 95 to 99, but im 99% sure that all turbo eclipsees and talons (from 91+) had the 450's you need
|
Re:internal wastegate question
actually i think they starte in 90, not 91
|
All times are GMT -5. The time now is 04:37 PM. |
© 2024 MH Sub I, LLC dba Internet Brands