Spool Difference Between 3540 And To4Z?

[Adrian_F6]

g'day guys, dug around a bit but couldn't find anything difinitive.

with a 6boost manifold and t04z does any1 know what rpm roughly the boost would be coming in... oh and 4inch exhaust.

and the std manifold and a 3540 with flapper mod and actuator mod, when would the boost be coming in on that with a 4inch exhaust also.

cheers.

[Boosted1]

I rekon it would be very simular mate. but it depends on what exhaust housing you are putting on the to4z. .84,.100 t4 or the gt35 1.06 t3 with the gt35 turbine wheel, which is what alot of people are doing these days.

the 6 boost manifold will give better spool being tuned length wich will make up for the slower spool time on the to4z

Edited 13/12/10 12:17 PM by Boosted1

[01txr]

Mine has by memory a .96 rear and with running 4" dump into cat with 3.5 out also running taz manifold, plazmaman plenum, HDI GT series ic and nizpro valve springs.

T56 with 345 diff I'm was making boost from approx 1100rpm with 12psi before 2300 governed by progate 50 with 8psi spring using 6th gear to evaluate boost.

So much more responsive than factory set up and efficiency so much better.

Highway cruise I was getting 8.8L to 100k's. Compared with 11.7L oem.

Disadvantage is in wet conditions car is useless in trying to get power down.

Struggles in dry first 2-3 gears pending road surface and throttle percentage.

That's with 265x30x19 Toyo Proxy 4's.

Pitty my number 6 rod didn't agree with the extra power.

Suggest solid bottom end for TO4z set up.