GReddy Internal Wastegate Actuator
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GReddy Internal Wastegate Actuator
So I decided to run my old GReddy TD05-18g on my LSVTEC. I want to run more boost. I have a Hondata S300 with the Hondata Boost Control Solenoid.
I have read that the TD05-18G INTERNAL wastegate actuator does not respond well at pressures over 14 psi. They used to make a wastegate actuator rated for 14psi, but it has been discontinued (greddy part number 11501610).
Question is is there a suitable replacement actuator I could use from a different setup, or will the Hondata Boost Control Solenoid handle the pressures over 14psi?
People has stated when using a manual boost controller on the greddy turbo, boost hits set pressure, but boost will continue to drop or flutter as the spring inside the actuator is soft and will open regardless of any kind of boost controller.
Or, would I be able to weld the wastegate door shut and rely only on the Hondata Boost Control Solenoid to regulate boost?
Please dont tell me to upgrade the turbo or get a new setup. Thats not what im looking to do.
I have read that the TD05-18G INTERNAL wastegate actuator does not respond well at pressures over 14 psi. They used to make a wastegate actuator rated for 14psi, but it has been discontinued (greddy part number 11501610).
Question is is there a suitable replacement actuator I could use from a different setup, or will the Hondata Boost Control Solenoid handle the pressures over 14psi?
People has stated when using a manual boost controller on the greddy turbo, boost hits set pressure, but boost will continue to drop or flutter as the spring inside the actuator is soft and will open regardless of any kind of boost controller.
Or, would I be able to weld the wastegate door shut and rely only on the Hondata Boost Control Solenoid to regulate boost?
Please dont tell me to upgrade the turbo or get a new setup. Thats not what im looking to do.
#2
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Re: GReddy Internal Wastegate Actuator
So I decided to run my old GReddy TD05-18g on my LSVTEC. I want to run more boost. I have a Hondata S300 with the Hondata Boost Control Solenoid.
I have read that the TD05-18G INTERNAL wastegate actuator does not respond well at pressures over 14 psi. They used to make a wastegate actuator rated for 14psi, but it has been discontinued (greddy part number 11501610).
I have read that the TD05-18G INTERNAL wastegate actuator does not respond well at pressures over 14 psi. They used to make a wastegate actuator rated for 14psi, but it has been discontinued (greddy part number 11501610).
There is a nice replacement from the Garrett camp, since the 18G is a Garrett/Mitsu hybrid turbocharger.
http://www.atpturbo.com/mm5/merchant...egory_Code=WGT
I believe you can integrate this with your current bracket for the actuator that you have. If not, check ATP turbo under wastegates, and see if the GT28R replacement would work. (I can't remember off-hand, I haven't upgraded those in a while on the 18Gs I've had).
worse case is that you call them for that application
Hope this was of some assistance.
Please dont tell me to upgrade the turbo or get a new setup. Thats not what im looking to do.[/QUOTE]
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Re: GReddy Internal Wastegate Actuator
Yea there is a Guy who has the same kit as you but he has the internal wastegate welded shut running external one with a ramhorn manifold with a t3 to t25 adapter to use it with the ramhorn. I believe he made 350 whp with 252 tq at 15-16 psi. Get with shodan he will square you away or you can find that thread on here and use some of his ideas. Hope everything goes well
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Re: GReddy Internal Wastegate Actuator
Ok, change of plans.....
So a buddy of mine gave me a great deal on his barely used original Kiwi Turbo manifold. I tried doing research on this manifold, but there is little info still out there. I appears that I can retain power steering and air condition with this manifold, but hopefully someone can chime in to verify. It has a T4 flange with an external wastegate flange.
My questions are....
Are the 2 bolt wastgate flanges universal? Or are they wastegate specific? The diameter of the wastegate flange opening is 30mm, but the gasket it came with is 35mm. Are the differences between wastegate sizes based on the piping or opening?
In order to run my current TD05-18g turbo, I found a T4 to T25 adapter on ebay. Thus , needing to weld the internal wastegate flapper shut. If my goals are less than 400HP with a 2.5 in downpipe and 3 inch exhaust, will this turbo get me where I want to be?
The obvious other alternative is to get a t4 frame turbo and have a new downpipe fabricated. My criteria is to retain PS and AC. Wondering if a Precision 6262 will allow this clearance with this manifold.
Anyone with Kiwi knowledge please chime in...
thanks...
So a buddy of mine gave me a great deal on his barely used original Kiwi Turbo manifold. I tried doing research on this manifold, but there is little info still out there. I appears that I can retain power steering and air condition with this manifold, but hopefully someone can chime in to verify. It has a T4 flange with an external wastegate flange.
My questions are....
Are the 2 bolt wastgate flanges universal? Or are they wastegate specific? The diameter of the wastegate flange opening is 30mm, but the gasket it came with is 35mm. Are the differences between wastegate sizes based on the piping or opening?
In order to run my current TD05-18g turbo, I found a T4 to T25 adapter on ebay. Thus , needing to weld the internal wastegate flapper shut. If my goals are less than 400HP with a 2.5 in downpipe and 3 inch exhaust, will this turbo get me where I want to be?
The obvious other alternative is to get a t4 frame turbo and have a new downpipe fabricated. My criteria is to retain PS and AC. Wondering if a Precision 6262 will allow this clearance with this manifold.
Anyone with Kiwi knowledge please chime in...
thanks...
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#8
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Re: GReddy Internal Wastegate Actuator
This is a T4 divided kiwi "style" manifold that looks of very shoddy material. Unless your friend can give some assurances that this came from a reliable source and not e-bay, you're wasting your time and money. You were better off sticking with your original GReddy manifold and internal gate than to go this route. This is going BACKWARDS.
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Re: GReddy Internal Wastegate Actuator
This is a T4 divided kiwi "style" manifold that looks of very shoddy material. Unless your friend can give some assurances that this came from a reliable source and not e-bay, you're wasting your time and money. You were better off sticking with your original GReddy manifold and internal gate than to go this route. This is going BACKWARDS.
Any input on the wastegate opening? Is it a universal sized bolt pattern?
#10
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Re: GReddy Internal Wastegate Actuator
2) Grade quality from the metal looks VERY suspect.
3)T4s were rare if ever made by the original group.
That is an older style 2 bolt Tial/Turbonetics/Deltagate Mark II flange.
Again. you're going backwards here. Use the money to upgrade acuator, alter the downpipe and retune for higher boost pressure.
#11
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Re: GReddy Internal Wastegate Actuator
If you need a quick solution go to Ace Hardware and grab a spring. I was able to really help out my boost spike problem when I ran a T25.
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#15
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Re: GReddy Internal Wastegate Actuator
What do you think is in the higher pressure dashpots? Magic? It is a stiffer spring. The spring is a band aid and will degrade over time due to not being designed for the intended use. However, they will last for a decent amount of time. Just understand what is happening and why when/if you start to have issues. Although less precise and potential to ruin the actuator, others have crushed them with success.
#16
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Re: GReddy Internal Wastegate Actuator
Thanks. ...I'm no turbo guru so sorry if my simple question seemed laughably to you! I get the simple idea of how the turbo works & from what I've been looking up in regards to what's the most HP I can get out of a 18g TDO5. Im aware the spring is not a permanent solution but will it help a lot to get the flap(psi) from spiking if I run higher boost? Im a noob to turbo so im trying to understand the correct info. Im not looking to modify my kit by boring the turbo or welding the flap shut. I don't plan to run anymore than 10-11psi since my bottom end is stock. But any easy upgrades other than the turbine modification im willing to do. My kit already has an upgraded down pipe which is 2.5" to 3" straight pipe to 3" muffler. I appreciate your help & I can give you a list break down of what my setup will be & maybe you can tell me if I can reach 300hp?
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