Correct Turbo Size?
sometimes its hard to tell if things help or hurt without a baseline time to base the time off of. the small turbo might not make as much peak power but it might make as much average power not to mention if you have a faster spooling car it will get out of the hole good . and we all know if it wont come out of the hole it wont et . then you know if it likes the bigger turbo.
What most people fail to understand is when they call that a 75 exhaust wheel they are giving you the front side. John Bewley told me the other day that the 83mm exhaust wheel offered in the s400 line of turbos is the same as the 7675 exhaust wheel. So while you may at some point run into some back pressure it should still get your fairly far before doing so because it's not as small as people tend to believe
What most people fail to understand is when they call that a 75 exhaust wheel they are giving you the front side. John Bewley told me the other day that the 83mm exhaust wheel offered in the s400 line of turbos is the same as the 7675 exhaust wheel. So while you may at some point run into some back pressure it should still get your fairly far before doing so because it's not as small as people tend to believe
sometimes its hard to tell if things help or hurt without a baseline time to base the time off of. the small turbo might not make as much peak power but it might make as much average power not to mention if you have a faster spooling car it will get out of the hole good . and we all know if it wont come out of the hole it wont et . then you know if it likes the bigger turbo.
What most people fail to understand is when they call that a 75 exhaust wheel they are giving you the front side. John Bewley told me the other day that the 83mm exhaust wheel offered in the s400 line of turbos is the same as the 7675 exhaust wheel. So while you may at some point run into some back pressure it should still get your fairly far before doing so because it's not as small as people tend to believe
No it will not, keep in mind Borg Warner exhaust housing classifications are much different than most others. Also the 1.32 is a split housing, run 2.25" from each manifold up to the housing and that thing will light off no problems
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Verdad Gallardo I think mine is intially being built that size for the 7875.
For under 900hp, Id' go with 2" if you haven't built it yet. Fits each side of the scroll better and is easier/cheaper to fabricate. Guys are making great power very quickly on large frame turbos doing this.
I already bought the piping. I was thinking about that. But I figured that would be ok with my CR being where its at
After crunching numbers and talking to different people I am going to a S480 T6 with race cover and billet wheel with a 1.10a/r. I think that should secure any back pressure issues and still have good spool response with the smaller housing. I should make decent HP too. Im really glad and excited I got rid of the old turbo and ready to see what hp it will put down. Kinda pumped 