ups and downs of a ihi thunderbird turbo???
07-30-2005, 07:16 PM
#51
1.0 BAR
Join Date: May 2005
Posts: 209
Re: ups and downs of a ihi thunderbird turbo???
the stock wastegate for the rhb5 is set at 6psi for the probe...i kno cuz i have that turbo...and if ur not talking about a rhb5 then ignore me cuz this thread is all over the place and im confused lol
07-31-2005, 04:01 AM
#52
1.0 BAR
Thread Starter
Join Date: Dec 2004
Posts: 525
Re: ups and downs of a ihi thunderbird turbo???
how can i lower the boost (never thot id say that being an dsm guy) i dont want to buy a new gate if i dont have to any ideas or anyone that has one on there ls or even a d that can tell me what its at let me know thanks.!
07-31-2005, 01:49 PM
#53
3.0 BAR
Join Date: May 2005
Posts: 1,811
Re: ups and downs of a ihi thunderbird turbo???
See if you can swap a different actuator from another turbo. Thunderbird wastegates are 14psi like I said.
14
14
14
14
14
14
14
14
14
14
Give or take a psi depending where you tap your gauge, and how worn out the turbo is.
Anyone claiming less than at least 11psi on a thunderbird is:
1) is illinformed
2) BOUGHT THE WRONG TURBO
3) has a faulty boost gauge.
4) has an engine so -----, it can't build any more boost
LoL!
It's not a lot of flow at 1 bar. If you look around, you find a few places quoting 320cfm @ 14psi. That's about right from my personal experiance with a few of them.
Puts it in range number wise with a t3 45 trim. It's not as much power, because it's a good bit less effecient, but it spools faster so... Make your own descisions about low power vs better driveability.
14
14
14
14
14
14
14
14
14
14
Give or take a psi depending where you tap your gauge, and how worn out the turbo is.
Anyone claiming less than at least 11psi on a thunderbird is:
1) is illinformed
2) BOUGHT THE WRONG TURBO
3) has a faulty boost gauge.
4) has an engine so -----, it can't build any more boost
LoL!
It's not a lot of flow at 1 bar. If you look around, you find a few places quoting 320cfm @ 14psi. That's about right from my personal experiance with a few of them.
Puts it in range number wise with a t3 45 trim. It's not as much power, because it's a good bit less effecient, but it spools faster so... Make your own descisions about low power vs better driveability.
08-01-2005, 12:07 AM
#57
3.0 BAR
Join Date: Apr 2005
Posts: 4,890
Re: ups and downs of a ihi thunderbird turbo???
Originally Posted by Toysrme
See if you can swap a different actuator from another turbo. Thunderbird wastegates are 14psi like I said.
14
14
14
14
14
14
14
14
14
14
Give or take a psi depending where you tap your gauge, and how worn out the turbo is.
Anyone claiming less than at least 11psi on a thunderbird is:
1) is illinformed
2) BOUGHT THE WRONG TURBO
3) has a faulty boost gauge.
4) has an engine so -----, it can't build any more boost
LoL!
It's not a lot of flow at 1 bar. If you look around, you find a few places quoting 320cfm @ 14psi. That's about right from my personal experiance with a few of them.
Puts it in range number wise with a t3 45 trim. It's not as much power, because it's a good bit less effecient, but it spools faster so... Make your own descisions about low power vs better driveability.
14
14
14
14
14
14
14
14
14
14
Give or take a psi depending where you tap your gauge, and how worn out the turbo is.
Anyone claiming less than at least 11psi on a thunderbird is:
1) is illinformed
2) BOUGHT THE WRONG TURBO
3) has a faulty boost gauge.
4) has an engine so -----, it can't build any more boost
LoL!
It's not a lot of flow at 1 bar. If you look around, you find a few places quoting 320cfm @ 14psi. That's about right from my personal experiance with a few of them.
Puts it in range number wise with a t3 45 trim. It's not as much power, because it's a good bit less effecient, but it spools faster so... Make your own descisions about low power vs better driveability.
08-02-2005, 09:55 PM
#58
0.5 BAR
Join Date: May 2003
Posts: 152
Re: ups and downs of a ihi thunderbird turbo???
Originally Posted by bitchasscracker
Originally Posted by sixsick6
The reason the Probe manifold wouldn't fit is because the T Bird uses a small T3 exhaust side. The turbine is the same between the MX6, Probe and T Bird but the exhaust side is different on the T Bird. MX6 and Probe use the same exhaust side as each other. The wastegate is 8.7 psi, not 14. And the turbo itself starts to lose efficiency after 16 psi. FYI- there isn't much of a difference between 14 psi and 16 psi on this turbo.
Like I said, check my posts on here and you'll find all the info that you need including a "how to" for rebuilding WITH pictures.
Like I said, check my posts on here and you'll find all the info that you need including a "how to" for rebuilding WITH pictures.
the exhaust side ar is not the same on both
the turbine is not the same
and the boost is set at almost a bar not 8.7 you need to do research instead of just guessing becouse people know there ---- here your not on d-series.org and more toto
I switched from a Probe/mx6 turbine housing to an Isuzu and to a compressor that is slightly smaller than a t-bird, my boost onset is a good 500 rpm later, but it feels noticeably more powerful than my old stock probe unit.
As far as the actuator is concerned, you could probably adapt a different actuator to work, like from a T3?
Neil
08-03-2005, 12:41 AM
#59
3.0 BAR
Join Date: May 2005
Posts: 1,811
Re: ups and downs of a ihi thunderbird turbo???
With enough will, you can make something work I'm sure.
I can't help you with the A/R. In rescent years, IHI/ Warner-ishi is very ---- retentive about publishig data. Try to find out anything about an RHC6 (The GM-8 Turbo), or anything else they have now. No A/R data, no trims, no wheel sizes to be easily found.
Even tho rhb3's and rhb5's are common (in a relative world), it wouldn't surprize me if you couldn't find the A/R on them.
AFAIK, all the turbine & center cartridges are the same for the rhb 5's.
I've always taken a guess that the exhaust housings themselves are the same, they're just custom built / flanged to meet the application. But that is a 100% un-substantiated guess. I've played with three tbird rhb52's, but I've never seen any of the others in person.
Only differance between any of them should be compressor side, and packaging changes. Like I said, I've never held any of the others so... Take it with a grain of salt, or jump in and correct if anyone cares to.
I can't help you with the A/R. In rescent years, IHI/ Warner-ishi is very ---- retentive about publishig data. Try to find out anything about an RHC6 (The GM-8 Turbo), or anything else they have now. No A/R data, no trims, no wheel sizes to be easily found.
Even tho rhb3's and rhb5's are common (in a relative world), it wouldn't surprize me if you couldn't find the A/R on them.
AFAIK, all the turbine & center cartridges are the same for the rhb 5's.
I've always taken a guess that the exhaust housings themselves are the same, they're just custom built / flanged to meet the application. But that is a 100% un-substantiated guess. I've played with three tbird rhb52's, but I've never seen any of the others in person.
Only differance between any of them should be compressor side, and packaging changes. Like I said, I've never held any of the others so... Take it with a grain of salt, or jump in and correct if anyone cares to.
