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This may not be the rite place for this but I'm wondering how the spray angle affects power i have 155deg angle now and would like to go to 145-140deg. With the bowl designs i have to choose from i spray out side of the bowl not good. I saw somewhere that the steeper the spray angle the less...

Was there ever a comp wheel that was designed specifecly for low pressure charger??? Most chargers 4-1+ to get the most lbm. but did they ever have a disign that moved more at say 1.5-1 pr??

Getting some descent times now that its hooking up!! http://youtu.be/uuI8XlvPASU

Does anybody know what the difference in a 11 blade to a 13blade would be in a g trim shaft? does the 13 blade drive better but increase back pressure does the 11blade drive less but have less back pressure? where would they use these apps?

A friend of mine has a 05 cummins with a blown engine he used a 03 engine long block and injectors but smokes bad he said the ecm in the 05 fires the injectors differently who would the best people be to call to get the ecm flashed to run the 03 engine? if he uses the 03 ecm it only idles and...

If you have a 1.32 housing and a 94mm od turbine and you cut the housing to fit a 96mm turbine how much does it change the a/r if at all?

i'm running a s475 for a high pres with 1/32ar and have back press trouble wonder if i could step up to a 500 with tighter ar to get same boost with less back pressure?

Looks like i found the rite place to be!! Lots of great info hope i can be as much help as i have found here. kenworth s60 12.7 twin compound charged 15.9s 189mph at 23000lbs