New goodie: Forge wastegate actuator.

Q&A regarding engines, turbos, and intercoolers and power upgrades

Postby etantshi » Mon Feb 19, 2007 5:27 am

Conan wrote:
Simba wrote:I went with the "low" 10 psi spring versus the 15 psi spring

Is it able to hold 10 psi all through the redline in, say, 3rd gear?


I'm sure it will hold it as long and the turbo can supply it.
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Postby Conan » Mon Feb 19, 2007 5:54 am

etantshi wrote:I'm sure it will hold it as long and the turbo can supply it.

I'm not saying it will be less than 10 psi, I'm concerned about boost creep.
When in doubt - increase boost.
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Postby gearhead313 » Mon Feb 19, 2007 12:34 pm

wow... pimping a ct FTL!
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Postby Simba » Mon Feb 19, 2007 2:25 pm

Conan wrote:Is it able to hold 10 psi all through the redline in, say, 3rd gear?


Yup. It also builds boost faster than the stock actuator (boost controller turned off) as it doesn't start to open until ~6-7 psi, versus ~3 with the stock unit.

I've never had this kind of wastegate regulatrity on an internally gated turbo.

Lots of fast, loud things.
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Postby Conan » Mon Feb 19, 2007 7:21 pm

Simba wrote:I've never had this kind of wastegate regulatrity on an internally gated turbo.

Are you sure you didn't get involved in any marketing deal with Forge? :twisted:
When in doubt - increase boost.
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Postby etantshi » Mon Feb 19, 2007 7:50 pm

Conan wrote:
Simba wrote:I've never had this kind of wastegate regulatrity on an internally gated turbo.

Are you sure you didn't get involved in any marketing deal with Forge? :twisted:


ha ha

Simba has sold out to da man. lol
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Postby Simba » Mon Feb 19, 2007 10:25 pm

Conan wrote:Are you sure you didn't get involved in any marketing deal with Forge? :twisted:


Nope. My endorsements are considerably more expensive than that. :P

More to the point, one could say Toyota's wastegate actuators are complete pieces of crap by comparison.

Lots of fast, loud things.
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Postby 88st165 » Tue Feb 20, 2007 2:15 am

wow that looks like a nice piece... i prob will consider one of those for my ct27 as well in the future...

on a side note, i thought you were running the ct27 for some time now b/c that thing looks brand spanking new...
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Postby Simba » Tue Feb 20, 2007 2:33 am

88st165 wrote:on a side note, i thought you were running the ct27 for some time now b/c that thing looks brand spanking new...


That's because it is new. One of the oil seals went in the first one, so ATS replaced it.

Great customer support on their part.

edit: Until the second one blew up as well, anyway, and they tried to blame me for both failures. :roll:
Last edited by Simba on Wed Dec 26, 2007 6:51 pm, edited 1 time in total.

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Postby 88st165 » Tue Feb 20, 2007 2:50 pm

^ yes i believe i had that same situation and they promptly sent me a brand new one which i have yet to put on since my cars been down.

-they have got to be at the top as far as customer service for companies that cater to our community.
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didnt

Postby Greg_Peddle » Mon Oct 13, 2008 11:50 pm

didnt simba say that he has a ct27 and he is still getting boost creep and thats why he upgraded the actuator?

im having serious boost creep issues since i changed my exaust to all 3 inch i cant even floor it the turbo gets up to 18psi easy

im looking for a solution to the problem as well cause its really annoying when some ricer passes you and you hit fuel cut and have to turn ure car of and on to get the turbo to spool again
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Postby toayoztan » Tue Oct 14, 2008 12:45 am

Boost creep issues are usually WG related issues such as it being too small, the door not opening fully, etc of that nature.

The actuator may cause boost spike issues if it's old...if maybe that is what you are referring to?

I have simba's CT27 now with a stock WG and full 3" exhaust. What I notice is the WG door does not open up fully due to the XS Power downpipe. Even then, without a boost controller, I don't have any boost creep or spike issues...maybe I creep a psi or so but nothing towards 18psi.

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yeah

Postby Greg_Peddle » Tue Oct 14, 2008 12:50 am

mine only did it since the exhaust

mines also a st185 rc has a higher fuel cut if that has anything to do with it

but it sucks ass maybe i should get a better downpipe but i dont think its gonna solve it
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Re: didnt

Postby Simba » Tue Oct 14, 2008 6:08 pm

Greg_Peddle wrote:didnt simba say that he has a ct27 and he is still getting boost creep and thats why he upgraded the actuator?


The Forge actuator was more a benefit to consistency and initial boost holding (stiffer spring) than a cure for boost creep. It helped somewhat, though that's largely as the WG capsule that came on the CT27 I got originally was in questionable shape.

The build quality of the Forge actuator is superb-- these days I'd rather chew glass than use an internally gated turbo, but if I had to I'd use their capsule in a heartbeat.

Lots of fast, loud things.
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Postby darthripley » Tue Oct 14, 2008 8:44 pm

you can always try porting the wastegate to help keep it from spiking so bad.
it's cheaper than a DP or an external wastegate if you don't have the cash to spare.
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