NEW!!!!! GT Spec Evolution Header!!!! Dyno Proven!!!!!
Aug 17, 2005, 10:00 PM
#16
hurts the eye just looking at the pic 
Where would we mount the EGT gauge? Why can't they offer one with a bung/hole already drilled in so people don't mess up the manifold runner by drilling...just food for thought.
Where would we mount the EGT gauge? Why can't they offer one with a bung/hole already drilled in so people don't mess up the manifold runner by drilling...just food for thought.
Aug 17, 2005, 11:40 PM
#17
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I got to see this manifold today in person. The quality of the welds are impeccable. Compared to other manifolds out there that are prone to cracking due to shoddy welds this one is top notch. The flange is extremely beefy and the finish on it is pure mirror. It's an ultra nice touch that they made two versions of this as well for both USDM and the Euro/Japanese market. GT Spec left no bases un-covered on this one. Great product.
Aug 18, 2005, 01:51 AM
#18
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Can you post a pic of how the headers look on your car? Want to see how the coating holds up.
I know its not that important but Ive seen other headers where its very shiny at first then after a day its gets dull.
Does look better quality then other headers.
I know its not that important but Ive seen other headers where its very shiny at first then after a day its gets dull.
Does look better quality then other headers.
Aug 18, 2005, 09:59 AM
#19
badhabit90 - I beleive the design is to use the twin scroll desgin of the stock turbo better. Designs like this have been used in japan before. This is the first one of its kind to be used in the US.
KZEVO - I welded ours right where the GT Spec label is because my header did not have that. It does not come with any prewelded EGT bung. You will need to drill and tap or weld a bung on. Sorry
kmxxbadboy - It almost makes you not want to install it on the car huh?
Yes this batch we are getting has the EGR ports on the front but will come with plugs. The next batch will not have the ports on it and is expected to arrive in late October.
Here is a pic of the header about 2 weeks ago. Don't pay atten to the collant hose. I did have to weld the EGR ports closed on my header because I did not have any plugs. So I am pretty sure that effected the coating.
Ben
KZEVO - I welded ours right where the GT Spec label is because my header did not have that. It does not come with any prewelded EGT bung. You will need to drill and tap or weld a bung on. Sorry
kmxxbadboy - It almost makes you not want to install it on the car huh?
Yes this batch we are getting has the EGR ports on the front but will come with plugs. The next batch will not have the ports on it and is expected to arrive in late October.
Here is a pic of the header about 2 weeks ago. Don't pay atten to the collant hose. I did have to weld the EGR ports closed on my header because I did not have any plugs. So I am pretty sure that effected the coating.
Ben
Aug 19, 2005, 07:55 PM
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this is for Ty1234
just so you can see other options and compare apple to apples. here is the link on this forum for comparison.
https://www.evolutionm.net/forums/sh...d.php?t=154155
Maxford exhaust.
just so you can see other options and compare apple to apples. here is the link on this forum for comparison.
https://www.evolutionm.net/forums/sh...d.php?t=154155
Maxford exhaust.
Aug 19, 2005, 08:46 PM
#22
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Originally Posted by mksevo
most V8 headers are lot more material and cost 500.00. just my 2 cents.
you can charge what the market will bare.
you can charge what the market will bare.
Aug 20, 2005, 03:02 PM
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Originally Posted by lemacfar
Dyno was at Champion Porsche's 4wd dyno
thank you lemacfar i have that one as well , and its very nice . i have seen the results not to mention on my own car.
Aug 26, 2005, 11:11 AM
#26
Sorry I have not been able to update this thread more. It is not that far away so lets start getting a list together.
Here is a quick pic of the dyno sheet
As you can see you lose a little bit down low because you are going to a tubular header. The thermal efficiency of a tubular header is going to be worse then a cast piece. But with a coating or wrapping you could get it back to stock or even better. But the gain up at the higher RPMs are worth it.
Ben
Here is a quick pic of the dyno sheet
As you can see you lose a little bit down low because you are going to a tubular header. The thermal efficiency of a tubular header is going to be worse then a cast piece. But with a coating or wrapping you could get it back to stock or even better. But the gain up at the higher RPMs are worth it.
Ben
Aug 29, 2005, 09:33 AM
#30
That would be nice(if it is not to much trouble). I am always interested to see other products. And really numbers can lie but if you see the curve of both it is alot easier to gauge the performance of the part.
You can email it to me ben@ralllysportdirect.com
Ben
You can email it to me ben@ralllysportdirect.com
Ben