Boosting Stock Twins

JASONA70

nomnomnom
Oct 27, 2006
743
0
0
socal
boost cut is at 14, ive seen some people take these things into the 20's. but 20 isnt a safe number for those tiny things.
 

AF1JZ

Almost civilian status...
Jun 26, 2006
3,109
0
0
Fredericksburg, VA
14psi is considered "safe" on a daily basis. But, I know that some people have taken it higher on a daily basis. (like 17psi or so).
 

OneJSupra

I'm a sleeper ...
Feb 9, 2007
900
0
0
Supraland
driftking786;917314 said:
im runing wastegate which on dyno was 14psi. that is what i was told but now at a light when i stop after boosting, white smoke passes by and it pisses me off:3d_frown:


Twins are ready to quit...I know it sucks, doesn't it?
 

Dylan JZ

一番 King
Oct 18, 2007
2,220
0
0
湾岸せん
The Reaper;917883 said:
the amount a boost you can run on stock twins is JUST on the otherside of the Search Button :)

rofl.. as much as I agree, the honest figure is anything _<18. stock twins dont smoke from boost, they smoke from blow by, coking and other such gayness. that's unfortunately the sad fact of CT12a's.. funny thing is even with those things absent, they still eventually blow the seals.

thats why as soon as you get your car, start saving for a nice single. I mean if I had to I'd throw my CT26 on there and its not upgraded, but at least its somewhat of a back up until I get my upgraded hx35.
 
Dylan JZ;917942 said:
rofl.. as much as I agree, the honest figure is anything _<18. stock twins dont smoke from boost, they smoke from blow by, coking and other such gayness. that's unfortunately the sad fact of CT12a's.. funny thing is even with those things absent, they still eventually blow the seals.

thats why as soon as you get your car, start saving for a nice single. I mean if I had to I'd throw my CT26 on there and its not upgraded, but at least its somewhat of a back up until I get my upgraded hx35.

What do people think of the hx35's and hx40's. My buddy just got a hx40 for his 7m and he is extremely excited. It seems that they are very reliable and very powerful. I dont remember hearing about them used on Supras until recently though.
 
Last edited:

Dylan JZ

一番 King
Oct 18, 2007
2,220
0
0
湾岸せん
viperkillertt;918114 said:
What do people think of the hx35's and hx40's. My buddy just got a hx40 for his 7m and he is extremely excited. It seems that they are very reliable and very powerful. I dont remember hearing about them until recently though.

what do you think powers the 5.9L cummins diesel in the dodge trucks :D

hx35 mwahaha, great turbo.. about the same as a gt35 though i hear the exhaust housing maybe a bit big. theyre made by holset..
 

speed

Gone. Email me.
May 27, 2006
1,045
0
0
not here
www.timduganphotography.com
there was a thread on here a while ago from a guy who was using a hy35 i think on his 1jz. good thread... lots of bullshit "omg if its not a garret or precision its shit"


But there is actually good info in there. When my twins blow, i'm going with a holset.
 
speed;918150 said:
there was a thread on here a while ago from a guy who was using a hy35 i think on his 1jz. good thread... lots of bullshit "omg if its not a garret or precision its shit"


But there is actually good info in there. When my twins blow, i'm going with a holset.
sweet, i think i will too. thanks for the info. I will look for that thread.
Truthfully Garret's are pretty inefficient when compared to other manufacturers. There are better ones out there. Mitsubishi does make great turbos, Garret just kinda dominates because they only do turbos.
 

spipedong

Level 2 Rythym Rogue
Apr 2, 2005
404
0
0
41
Eugene, OR
Well, if my truck is any indication of how long and how well the Holset turbos work I'm sold.

Almost temped to crank my twins up just to have an excuse to swap them for a Holset :)
 

foreverpsycotic

Back in the game!
Jul 16, 2006
3,171
12
38
38
ATL
viperkillertt;918114 said:
What do people think of the hx35's and hx40's. My buddy just got a hx40 for his 7m and he is extremely excited. It seems that they are very reliable and very powerful. I dont remember hearing about them used on Supras until recently though.

I am contemplating this idea. I have a holset hx-35, t3 manifold and a v-band DP. I might just stay with stock twins, but my turbos may be shot (or my valve stem seals, not sure, but it does blow some smoke by me when I sit a little after running it around).