Forge Actuator 25psi straight to Redline!!!
Originally Posted by GregGSC
When we first put it on we left the boost controller alone and the car went to 30psi. we didn't stay in it because of the stock head gasket so i don't know what she will do at 7500rpms but i would guess it would hold it.
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From: driving the 10 second beast in ohio or running lightmods.net
Originally Posted by GregGSC
When we first put it on we left the boost controller alone and the car went to 30psi. we didn't stay in it because of the stock head gasket so i don't know what she will do at 7500rpms but i would guess it would hold it.
I am not a "Flash" fan and you wont find any of our cars with a flash. we like to tinker with the car to much to have one set flash. will a flash stop boost taper to some degree yes but at high boost no way the gate will be forced open and nothing a boost controller and flash can stop. only an upgraded waste gate or actuator will work.
I am not a "Flash" fan and you wont find any of our cars with a flash. we like to tinker with the car to much to have one set flash. will a flash stop boost taper to some degree yes but at high boost no way the gate will be forced open and nothing a boost controller and flash can stop. only an upgraded waste gate or actuator will work.
don't worry the stock headgasket will hold 30psi. I run 28-30 psi on my gt35r on the stock original 20k headgasket with just headbolts we put in one at a time style.
Dave
Originally Posted by John@GSC
The run actually looked like this.
1.75
5.075 @ 67.06
7.892 @ 86.53
With the stiff spring in the boost controller the lowest the boost would go is 30 psi.
I put the soft spring back in the boost controller turned it almost all the way in.
(You can get 90 clicks on the Forge bc. I'm at about 80.) Now it makes 25-26 psi quick and holds Solid.
John
1.75
5.075 @ 67.06
7.892 @ 86.53
With the stiff spring in the boost controller the lowest the boost would go is 30 psi.
I put the soft spring back in the boost controller turned it almost all the way in.
(You can get 90 clicks on the Forge bc. I'm at about 80.) Now it makes 25-26 psi quick and holds Solid.
John
I already know this actuator is being used to go 12.0s and 115mph in 5th gear on an MR (TTP Engineering), so I believe it's a good unit, but I'm not sure holding 25psi to redline is a good thing for most...
The way I see it, it's really not for 90% of the people out there. Because most aren't going to have the proper setup to run more than 20-21psi all the time. And chances are with just bolt-ons, they aren't overly concerned with the loss of 1-2psi on the top end where the turbo really falls flat anyways.
see what i'm wondering is if there will be a dyno graph for this cuz i also wanna see how the torque and stuff falls off and if the hp is indeed a steady increase. (i don't care about the peak numbers, just wanna see if all these benefits are usable) cuz it certainly sounds real real real good.
There will never be a consistent coefficient of performance increase with this modification on any two people's vehicles.
The amount of power increase will vary under every single circumstance based on each of the following factors:
- Installed Actuator Spring (pressure rating)
- Adjustment of Actuator Turnbuckle
- Boost Control Settings (mechanical or electronic)
- Vehicle Load
As well as numerous other variations in the tuning and power output of each given vehicle.
The amount of power increase will vary under every single circumstance based on each of the following factors:
- Installed Actuator Spring (pressure rating)
- Adjustment of Actuator Turnbuckle
- Boost Control Settings (mechanical or electronic)
- Vehicle Load
As well as numerous other variations in the tuning and power output of each given vehicle.
Originally Posted by Soon2BEVO
Id like to see a dyno of before and after of this actuator. Im sure the mid range is affected drastically. I know when Buschur used the external wastegate to hold boost up top he gained some nice top end but lost tons of power in the low-midrange. Either way, Id like to see the losses and gains! Dyno PLEASE!
I'd like to hear more about this question
Originally Posted by GregGSC
Anytime Mike. What's next, intercooler and fuel tank? 
Greg
Greg
The intercooler project is still being worked on, but hopefully we will have a final working prototype soon.
Originally Posted by Mike@Forge
There will never be a consistent coefficient of performance increase with this modification on any two people's vehicles.
The amount of power increase will vary under every single circumstance based on each of the following factors:
- Installed Actuator Spring (pressure rating)
- Adjustment of Actuator Turnbuckle
- Boost Control Settings (mechanical or electronic)
- Vehicle Load
As well as numerous other variations in the tuning and power output of each given vehicle.
The amount of power increase will vary under every single circumstance based on each of the following factors:
- Installed Actuator Spring (pressure rating)
- Adjustment of Actuator Turnbuckle
- Boost Control Settings (mechanical or electronic)
- Vehicle Load
As well as numerous other variations in the tuning and power output of each given vehicle.
Well, as is mentioned in my post on the first page, the actuator is available with anyone's choice of 4 different springs to provide their desired "base" actuator setting.
Green - 5-10 PSI
Yellow - 9-15 PSI
Blue - 14-18 PSI
Red - 19-24 PSI
By selecting any of the above springs, you will be choosing a spring for the minimum amount of boost that you intend to make on your application.
By selecting the Blue spring, for instance, you will never be able to boost less than 14 PSI at all, however, you are not limited to 18 PSI overall.
You would only be limited to roughly 18 PSI without the assistance of a boost controller, but the use of ANY type of boost controller will allow for adjustment to any level within the perameters of the adjustment allowable with whatever boost controller being used.
Yes, the efficiency range of the turbo needs to be considered. As does the limitations of each individual's fuel system and tuning/engine management being used. All of these factors, along with the overall strength of the engine and it's mechanical components need to be considered when choosing a spring tension and boost controller settings while tuning the car.
These factors can potentially limit the amount of boost pressure allowable on anyone's application.
IE: You can't necessarily expect to run 30 PSI on a bone stock Evo with this actuator and a boost controller. You will hit fuel cut well before realizing the full potential that the actuator has.
Green - 5-10 PSI
Yellow - 9-15 PSI
Blue - 14-18 PSI
Red - 19-24 PSI
By selecting any of the above springs, you will be choosing a spring for the minimum amount of boost that you intend to make on your application.
By selecting the Blue spring, for instance, you will never be able to boost less than 14 PSI at all, however, you are not limited to 18 PSI overall.
You would only be limited to roughly 18 PSI without the assistance of a boost controller, but the use of ANY type of boost controller will allow for adjustment to any level within the perameters of the adjustment allowable with whatever boost controller being used.
Yes, the efficiency range of the turbo needs to be considered. As does the limitations of each individual's fuel system and tuning/engine management being used. All of these factors, along with the overall strength of the engine and it's mechanical components need to be considered when choosing a spring tension and boost controller settings while tuning the car.
These factors can potentially limit the amount of boost pressure allowable on anyone's application.
IE: You can't necessarily expect to run 30 PSI on a bone stock Evo with this actuator and a boost controller. You will hit fuel cut well before realizing the full potential that the actuator has.
Originally Posted by Mike@Forge
I actually have a fuel tank being made up right now for a customer in the Czech Republic. If you want one, it's production can be commisioned.
The intercooler project is still being worked on, but hopefully we will have a final working prototype soon.
The intercooler project is still being worked on, but hopefully we will have a final working prototype soon.
