Posts : 1433 Join date : 2010-03-22 Age : 50 Location : durham
Subject: ported headers? Thu 13 May - 15:39
hello all can someone give me somemore information on ported headers, fitted some of finns headers that i got of carlos and just want to know the gains , can say that the turbo lag feels less
CARLOS
Posts : 2600 Join date : 2010-03-12 Age : 48 Location : chilton co durham
Subject: Re: ported headers? Thu 13 May - 17:57
it should raise the torque a bit you been playing
stevejones
Posts : 1433 Join date : 2010-03-22 Age : 50 Location : durham
Subject: Re: ported headers? Thu 13 May - 18:04
just a little bit mate but not to much until its remapped and other bits are on
CARLOS
Posts : 2600 Join date : 2010-03-12 Age : 48 Location : chilton co durham
Subject: Re: ported headers? Thu 13 May - 18:08
should go well with a few extras on
FINN Admin
Posts : 4445 Join date : 2010-03-16 Age : 48 Location : houghton-le-spring (the garage)
Subject: Re: ported headers? Thu 13 May - 20:16
never had anyone complain about the gains ov ported headers. and carlos's car made a extra 34lbft after ported headers and map tweak
CARLOS
Posts : 2600 Join date : 2010-03-12 Age : 48 Location : chilton co durham
Subject: Re: ported headers? Thu 13 May - 20:29
first mod on me new sti great kit apart from coilovers
stevejones
Posts : 1433 Join date : 2010-03-22 Age : 50 Location : durham
Subject: Re: ported headers? Thu 13 May - 20:37
even without a remap the car is stronger also is it ok to give it some with them on without a map
Rooter
Posts : 1480 Join date : 2010-03-27 Age : 48 Location : Pulling it out of the bush
Subject: Re: ported headers? Thu 13 May - 21:54
Are finns ported headers the same as what harvey does?
Who's are the best for quicker spool etc?
Jonny Gav Admin
Posts : 6837 Join date : 2010-03-12 Age : 53 Location : Durham
Subject: Re: ported headers? Thu 13 May - 22:11
What ported headers do is allow the gasses to flow more freely just like a de cat exhaust, improving the gas flow before the turbo helps spool the turbo up quicker hence the gains, this also allows the gasses to exit the heads more efficiently, this allows the engine to drag or in a turbocharged cars case have more air forced in giving a better cylinder filling.
The principle that Finn and Harvey's suppliers (he doesn't do them himself) uses is the same, the disadvantage in my opinion of Harvey's headers is he removes the standard heat shields and replaces them with overpriced heat wrap that only lasts 6 months, this stuff is dangerous on a Subaru engine as it induces moisture/liquid including oil and power steering fluid, not good if you like your engine bay flame free as the headers can get up over 600 degs C!
stevejones
Posts : 1433 Join date : 2010-03-22 Age : 50 Location : durham
Subject: Re: ported headers? Fri 14 May - 6:10
thanks johnny gav
kgt Admin
Posts : 4785 Join date : 2010-03-22 Age : 105 Location : Bishop Aukward
Subject: Re: ported headers? Fri 14 May - 7:55
what about the 2nd question.
"is it ok to give it some with them on without a map ?"
CARLOS
Posts : 2600 Join date : 2010-03-12 Age : 48 Location : chilton co durham
Subject: Re: ported headers? Fri 14 May - 10:04
to reep benefits a remap is a must but i ran mine for 2 month without a map with finns headers no issues at all cant wait to fit some to me new scoob when i get it
Jonny Gav Admin
Posts : 6837 Join date : 2010-03-12 Age : 53 Location : Durham
Subject: Re: ported headers? Fri 14 May - 17:56
quote-.what about the 2nd question.
"is it ok to give it some with them on without a map ?"
I would check it with det cans to ensure is isn't detting and a wide band to be sure it is fueling ok.
Calendar
but not to much until its remapped and other bits are on 
