Difference in Flanges....? T3, T4, Divided T4
09-27-05, 12:32 AM
#1
Difference in Flanges....? T3, T4, Divided T4
Ok I have a Divided T4 flange on my manifold... (FD) - now I understand there is a regular non-divided T4 flange. I was curious on the difference...aside from the divide... if I bolted up a NON-Divided T4 turbo to a Divided T4 flange....??
Also, difference between the T3 and T4 flanges... and if i wanted to swap them out, how hard would a T3 manifold be to find?
Pics are useful too..
Thanks
-darren-
Also, difference between the T3 and T4 flanges... and if i wanted to swap them out, how hard would a T3 manifold be to find?
Pics are useful too..
Thanks
-darren-
09-27-05, 12:40 AM
#2
holley guy
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Sorry no pics on me. The only difference between divided and undivided is the division. T4 is larger than T3. I haven't seen any production t3 manifolds, but you could hack off the t4 flange and weld on a T3.
-Marques
-Marques
09-27-05, 02:52 AM
#5
MP T-70 = Fun
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yes you can now get a 35r with a t4.
the t3 is a choak point IMO... i run a t4 flange divided hot side on a divided manifold.
the divided hot sides will spool a little faster.. but you have to make sure you choose the right a/r hot side for your app.
the t3 is a choak point IMO... i run a t4 flange divided hot side on a divided manifold.
the divided hot sides will spool a little faster.. but you have to make sure you choose the right a/r hot side for your app.
09-27-05, 03:03 AM
#6
is it possible to use a divided manifold with a non-divided turbo? Will this make a huge difference?
Also, choosin the right A/R is all depending on user preference correct?
if I want a 1.15 A/R obviously I'd get a lot of top end, but little mid range, and no low end. Opposed to a .96 A/R which would give me a bit of mid and more high, or a .70 A/R which is more mid than high. Correct?
Also, choosin the right A/R is all depending on user preference correct?
if I want a 1.15 A/R obviously I'd get a lot of top end, but little mid range, and no low end. Opposed to a .96 A/R which would give me a bit of mid and more high, or a .70 A/R which is more mid than high. Correct?
09-27-05, 03:08 AM
#7
MP T-70 = Fun
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any t4 flange will mate up to a t4 flange manifold.
its a good idea to match divided manifolds with a divided turbo... but finding proof in the numbers is gonna be hard to find.
if your manifold is divided.... get a divided hot side... why not? unless you already bought a turbo with a undivided hot side... then as long as the flange is the same... it will work.
make sure you run the proper a/r for your setup. too small and it will choak up top... to big and you will never spool it.
its a good idea to match divided manifolds with a divided turbo... but finding proof in the numbers is gonna be hard to find.
if your manifold is divided.... get a divided hot side... why not? unless you already bought a turbo with a undivided hot side... then as long as the flange is the same... it will work.
make sure you run the proper a/r for your setup. too small and it will choak up top... to big and you will never spool it.
