I would say 10 pounds max. You want to get rid of the stock injectors and at least go with JDM 440ccs or USDM 550ccs with that turbo.
MP t-70 1jz
- Thread starter 1wickedA70
- Start date
from what i hear you only get boost creep if you have only 1 runner going to the wastegate ex drewgo manifold.... i run a china man manifoold and it works great with no boost creep.......my car
1jz
gt4072
70a/r
hks wastegate
fmic and pipes
greddy emanage
tuned by chevyeater
=400whp @ 15-16psi
i get full boost by 4200rpm
1jz
gt4072
70a/r
hks wastegate
fmic and pipes
greddy emanage
tuned by chevyeater
=400whp @ 15-16psi
i get full boost by 4200rpm
OneJSupra;1379715 said:
yea, If you have a big turbo on there you will get some creep.
Exhaust from the front set of the runners doesn't really travel to the wastegate and will cause creep.
On the 2jz, sub 67mm turbos seem fine, above that they have creep.
i have gt4088r ,46mm wastegate with china 2 runner and i boost creep, i can't boost under 17-18 psi and my wastegate spring is 13psi
my ic piping is 2.5 inch but 3-3.25 would be better.If you know the flow of your turbo you can calculate it on garrett site
my ic piping is 2.5 inch but 3-3.25 would be better.If you know the flow of your turbo you can calculate it on garrett site
1wickedA70;1379745 said:
3inch
rwd;1379776 said:
funny because i have no problem running 15-16 psi and i have a 10psi spring? what wastegate are you using ???? im using a real hks wastegate....
OneJSupra;1379721 said:
the 6765 has a Big turbine wheel (similar to the GTS of the standard precision turbos iirc) and you might have a bit of a creep issue.
To combat the problem, simply put a smaller spring in the wastegate. If you have a .6 or so in there now (pretty standard unless you special order) you'll probably be all right and it wont creep over 18 psi.
One way to truly combat boost creep is adding a second wastegate. Even with a good high quality manifold you will most likely creep with a larger turbo.
I am running a 66mm turbo with a greddy manifold and greddy type r wastegate and it still creeps about 3 psi in the upper rpm.
I am running a 66mm turbo with a greddy manifold and greddy type r wastegate and it still creeps about 3 psi in the upper rpm.
what would the spool time differ from the .68Ar to .96 on the MP t-70....im still deciding on on what housing to use
i have a masterpower t70 with a .68 ar and i hit full spool around 4100 rpm. im also running the driftmotion 46mm wastegate and also manifold. not tuned so not sure what the power is. if u end up buying the driftmotion manifold, then make sure you check all the welds because there was a spot in my manifold that didnt have any welds so i had to take it off.
10secdream;1381870 said:
What ever you have your boost set at, For example, I had it at 25 psi by accident & it would hit 25 around4k-4.2k RPMs.. Too bad i wasn't tuned for that high boost & my car would hit fuel cut on the AEM ems ( safety feature we set up) I need bigger injectors so i can boost high :evil2:
.68 sounds good, think i might get that one and get the .81 housing later on...guess ill be running 10psi until i get injectors