reducing spool
#1
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reducing spool
with more of us starting to run bigger turbos, this subject needs to be addressed. on my setup, it doesn't start *** hauling mod untill about 4500rpm. what are somethings we can do to reduce spool?
everyone knows the better flowing exhaust the better. i plan on porting my turbo exhuast houseing, that "should" help a tad, i hope. but is there anything else to do?
does charge pipe diameter affect spool? intake going into the turbo? port out the exhaust ports/mani inlet? anything worth doing?
everyone knows the better flowing exhaust the better. i plan on porting my turbo exhuast houseing, that "should" help a tad, i hope. but is there anything else to do?
does charge pipe diameter affect spool? intake going into the turbo? port out the exhaust ports/mani inlet? anything worth doing?
#9
Are you saying that the boost doesn't start a steep rise until 4500? OR it doesn't hit target until 4500? If it's the latter- that's pretty good spool for a decent sized t3/t4 on a 1.6 IMO.
You need to find out what exact specs are of your t3/t4. Smaller ARs are a relatively simple way to change spool- and smaller is cheaper in the world of t3/t4... especially on t3. You could even go as far as putting a big t3 compressor on.
You need to find out what exact specs are of your t3/t4. Smaller ARs are a relatively simple way to change spool- and smaller is cheaper in the world of t3/t4... especially on t3. You could even go as far as putting a big t3 compressor on.
#11
Head work is the biggest thing you could do. (reducing spool doesn't sound right, don't you want to increase it?) Porting makes a huge difference when done right and will add power everywhere and help spool and increase the usable rev range by increasing VE at the higher RPMs. But you'll need a book or two on porting to know what to do.
#14
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with more of us starting to run bigger turbos, this subject needs to be addressed. on my setup, it doesn't start *** hauling mod untill about 4500rpm. what are somethings we can do to reduce spool?
everyone knows the better flowing exhaust the better. i plan on porting my turbo exhuast houseing, that "should" help a tad, i hope. but is there anything else to do?
does charge pipe diameter affect spool? intake going into the turbo? port out the exhaust ports/mani inlet? anything worth doing?
everyone knows the better flowing exhaust the better. i plan on porting my turbo exhuast houseing, that "should" help a tad, i hope. but is there anything else to do?
does charge pipe diameter affect spool? intake going into the turbo? port out the exhaust ports/mani inlet? anything worth doing?
#20
Gain 10-25% more power and drop spool 500-1000 RPMs.
http://books.google.com/books?id=283...um=1&ct=result
http://books.google.com/books?id=283...um=1&ct=result