sequential VS non sequential
sequential VS non sequential
01-21-09, 04:16 PM
#3
Holy ****. non seq is if you're too lazy to fix your sequentials.
non seq benefits
only get higher peak power if you do the rich mans version
otherwise, none
non seq draw backs
less low end since now you are spooling both turbos at the same time. more lag.
seq benefits
more low end response
seq drawbacks
complicated
Next time, do a ******* search.
non seq benefits
only get higher peak power if you do the rich mans version
otherwise, none
non seq draw backs
less low end since now you are spooling both turbos at the same time. more lag.
seq benefits
more low end response
seq drawbacks
complicated
Next time, do a ******* search.
01-21-09, 04:17 PM
#4
Sequential allows boost through out the RPM band. The problems lie in a complicated vacuum system that causes problems for many. There is also a transition between the first and second turbo coming on line that can cause a boost spike. This can all be addressed by proper reliablity modifications like changing out the vacuum lines to silicone or viton and using a boost controller to reduce the spike problem. I personally like the sequential system.
Others on the forum will tell you to go non-sequential. The advantages are less vacuum lines to go wrong and no boost spike. The disadvantage is turbo lag. So less power on the lower rpms but maybe more reliability.
Finally, there others who want to make bigger power and run higher boost will tell you to go single turbo. These are larger in size and thereby provide higher flow rates and pressure. This requires extesive modifications such as programmable ECU, larger fuel system (rail, injectors, fuel pump), not to mention your basic modifications that I would recommend regardless of what you choose such as intake, DP, catback, AST, vacuum hoses, etc..
Read the reliability modifications under the search function.
Good luck!
Others on the forum will tell you to go non-sequential. The advantages are less vacuum lines to go wrong and no boost spike. The disadvantage is turbo lag. So less power on the lower rpms but maybe more reliability.
Finally, there others who want to make bigger power and run higher boost will tell you to go single turbo. These are larger in size and thereby provide higher flow rates and pressure. This requires extesive modifications such as programmable ECU, larger fuel system (rail, injectors, fuel pump), not to mention your basic modifications that I would recommend regardless of what you choose such as intake, DP, catback, AST, vacuum hoses, etc..
Read the reliability modifications under the search function.
Good luck!
01-21-09, 06:46 PM
#12
Racecar - Formula 2000
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