Went to the Dyno (Follow-up Thread)
- Thread starter boostadikt
- Start date
i dunno.... i might be selling everything shortly, i want to go big with something like a GT40 or 42.... i want to make some real power.
the WG is being held shut by the spring.... in my case only 4lbs. when you start to build a lot of boost and at high RPM the back-pressure in the exhaust manifold increases and if it is enough it will over power the WG spring and force the valve open and not allow you to build any more boost.
so like i said 4lbs is pretty weak so i ordered a 1 bar spring to make sure
so like i said 4lbs is pretty weak so i ordered a 1 bar spring to make sure
but they rev higher so have more of a powerband then 1500 rpms..boostadikt said:
time for a different exhaust housing.. or newturbo
Yeah.. i want a new turbo, but like i said its really not as bad as you would think, i can stay at full boost from shift to shift, and it pulls crazy hard in 3rd. on the street i have full boost at around 4500 so i have 2200 rpm of power
There's your problem, .96 A/R and an On-center housing .
Edit:: this is in regards to post #20, I hate it when I post and then realize there was another page :3d_frown:.
. Edit:: this is in regards to post #20, I hate it when I post and then realize there was another page :3d_frown:.
Why does Everyone hate my turbo!?:nono:..... its not that bad, the lag doesn't bother me as much as i guess it would bother most of you, but i do want something larger..... im thinking about a T4/T67 anyone used one or have other recomendations for a good 700hp turbo?
a pt67 w/ a .68 a/r is what you are looking for!
congrats on the numbers btw. it does look a little laggy for what it is, but like was said thats because of the housing. .96 is rather big to begin with, and on center housings dont flow as good as a tang housing as well.
still, how it spools on the dyno is not nec indicative of how it behaves on the street. im not familiar w/ that type of dyno at all, so its hard to comment. but from what you describe, it would def be better w/ a smaller tang housing. would spool faster without any sacrifice of power.
congrats on the numbers btw. it does look a little laggy for what it is, but like was said thats because of the housing. .96 is rather big to begin with, and on center housings dont flow as good as a tang housing as well.
still, how it spools on the dyno is not nec indicative of how it behaves on the street. im not familiar w/ that type of dyno at all, so its hard to comment. but from what you describe, it would def be better w/ a smaller tang housing. would spool faster without any sacrifice of power.
I had a t67 .70a/r on my cammed 1jz, got full boost ~ 4500 on the street and pulled hard.. only ran like 17 psi on the setup, it was strong.. never dynoed though.. then I sold the engine for a slower stock twined 2jz, hahaboostadikt said:
I still have 67, but I think im going to step it up to a 71+ on my 2jz..
Just get a GT4067R and get it over with... You'll love the turbo... Wicked spool, high flow, definately good for 700... Even with a large AR, like a 96, the spool on it is dramatically better than other turbos... Even the non BB version is bad ass...boostadikt said:
Well then, start the run at lower RPM so we can get a better idea of the power curve... hehehehehehee :love:Tun_x said: