Will I be reaching 350whp?
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Lol, the 07 STI has the same motor ever other year had. Funny how people don't understand that, only difference is the factory tune that sucked. So if you trashed your car while on the factory tune then it could happen! EWG on a stock turbo does very little if anything. Ed will tell you the same.......
The piston manufacturer was different for 2007 STi pistons.
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Definitely ditch the pulley like everyone has said. You will come close to 350whp with your setup on E85 as long as you have a healthy engine to begin with. I would highly recommend doing a compression and leakdown test before doing any mods to the car.
EWG's do help a bit with the stock turbo when you're pushing the turbo hard. The main reason they help is they take some of the flow requirement off the turbine housing which is quite small in the VF turbos. That being said, its not going to be a 15-20whp difference. I would estimate 5-10whp at most. Good EL headers will make some nice gains, however.
As far as pistons go, the late half of the 2006 production year is when the switch happened. 04 through early 06 cars tend to hold up better and last longer. Once you get into the second half of the 06 productions year, you start seeing a significant increase in ringland failures and the same is true through current models. The stock tunes definitely exaggerate the issue and I always recommend getting off the stock map ASAP. Considering all of this, anytime a customer comes in with a 2006.5+ car they recently purchased, I highly recommend checking out the engine before doing anything else.
Thanks
-- Ed
EWG's do help a bit with the stock turbo when you're pushing the turbo hard. The main reason they help is they take some of the flow requirement off the turbine housing which is quite small in the VF turbos. That being said, its not going to be a 15-20whp difference. I would estimate 5-10whp at most. Good EL headers will make some nice gains, however.
As far as pistons go, the late half of the 2006 production year is when the switch happened. 04 through early 06 cars tend to hold up better and last longer. Once you get into the second half of the 06 productions year, you start seeing a significant increase in ringland failures and the same is true through current models. The stock tunes definitely exaggerate the issue and I always recommend getting off the stock map ASAP. Considering all of this, anytime a customer comes in with a 2006.5+ car they recently purchased, I highly recommend checking out the engine before doing anything else.
Thanks
-- Ed
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Definitely ditch the pulley like everyone has said. You will come close to 350whp with your setup on E85 as long as you have a healthy engine to begin with. I would highly recommend doing a compression and leakdown test before doing any mods to the car.
EWG's do help a bit with the stock turbo when you're pushing the turbo hard. The main reason they help is they take some of the flow requirement off the turbine housing which is quite small in the VF turbos. That being said, its not going to be a 15-20whp difference. I would estimate 5-10whp at most. Good EL headers will make some nice gains, however.
As far as pistons go, the late half of the 2006 production year is when the switch happened. 04 through early 06 cars tend to hold up better and last longer. Once you get into the second half of the 06 productions year, you start seeing a significant increase in ringland failures and the same is true through current models. The stock tunes definitely exaggerate the issue and I always recommend getting off the stock map ASAP. Considering all of this, anytime a customer comes in with a 2006.5+ car they recently purchased, I highly recommend checking out the engine before doing anything else.
Thanks
-- Ed
EWG's do help a bit with the stock turbo when you're pushing the turbo hard. The main reason they help is they take some of the flow requirement off the turbine housing which is quite small in the VF turbos. That being said, its not going to be a 15-20whp difference. I would estimate 5-10whp at most. Good EL headers will make some nice gains, however.
As far as pistons go, the late half of the 2006 production year is when the switch happened. 04 through early 06 cars tend to hold up better and last longer. Once you get into the second half of the 06 productions year, you start seeing a significant increase in ringland failures and the same is true through current models. The stock tunes definitely exaggerate the issue and I always recommend getting off the stock map ASAP. Considering all of this, anytime a customer comes in with a 2006.5+ car they recently purchased, I highly recommend checking out the engine before doing anything else.
Thanks
-- Ed
What pistons did they switch to exactly?
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Nobody likes the tuna here
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Thread Starter
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Thread Starter
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Car Info: Subaru STI
Definitely ditch the pulley like everyone has said. You will come close to 350whp with your setup on E85 as long as you have a healthy engine to begin with. I would highly recommend doing a compression and leakdown test before doing any mods to the car.
EWG's do help a bit with the stock turbo when you're pushing the turbo hard. The main reason they help is they take some of the flow requirement off the turbine housing which is quite small in the VF turbos. That being said, its not going to be a 15-20whp difference. I would estimate 5-10whp at most. Good EL headers will make some nice gains, however.
As far as pistons go, the late half of the 2006 production year is when the switch happened. 04 through early 06 cars tend to hold up better and last longer. Once you get into the second half of the 06 productions year, you start seeing a significant increase in ringland failures and the same is true through current models. The stock tunes definitely exaggerate the issue and I always recommend getting off the stock map ASAP. Considering all of this, anytime a customer comes in with a 2006.5+ car they recently purchased, I highly recommend checking out the engine before doing anything else.
Thanks
-- Ed
EWG's do help a bit with the stock turbo when you're pushing the turbo hard. The main reason they help is they take some of the flow requirement off the turbine housing which is quite small in the VF turbos. That being said, its not going to be a 15-20whp difference. I would estimate 5-10whp at most. Good EL headers will make some nice gains, however.
As far as pistons go, the late half of the 2006 production year is when the switch happened. 04 through early 06 cars tend to hold up better and last longer. Once you get into the second half of the 06 productions year, you start seeing a significant increase in ringland failures and the same is true through current models. The stock tunes definitely exaggerate the issue and I always recommend getting off the stock map ASAP. Considering all of this, anytime a customer comes in with a 2006.5+ car they recently purchased, I highly recommend checking out the engine before doing anything else.
Thanks
-- Ed
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Thanks
-- Ed
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-- Ed
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If you have access to E85 its definitely a better route than water/meth injection. There is no added complexity and potential points of failure and one less tank to think about filling. E85 will also make more power than water/meth injection as you have read.
Thanks
-- Ed
Thanks
-- Ed
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Nobody likes the tuna here
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So if it's been fixed what is the major problem of cracked rings and pistons that earlier models did not have much of an issue with. I know the WOT tune with late AFR change with the newer cars is what seems to be effecting them the most though.
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That company is different from the pre 08 models correct?
So if it's been fixed what is the major problem of cracked rings and pistons that earlier models did not have much of an issue with. I know the WOT tune with late AFR change with the newer cars is what seems to be effecting them the most though.
So if it's been fixed what is the major problem of cracked rings and pistons that earlier models did not have much of an issue with. I know the WOT tune with late AFR change with the newer cars is what seems to be effecting them the most though.
Thanks
-- Ed