Ted B.'s HTA3582 Twinscroll Project
Dec 22, 2008, 09:21 PM
#77
The goals are quite simple. Accept whatever it will deliver around 35psi on E85 (fuel system permitting) while maximizing transient response and spool characteristics, and care for it such that it lasts a long time.
It's easy to make power
It's easy to have quick spool
It's easy to make it last
The real challenge lies in getting all three at the same time.
Dec 23, 2008, 02:35 PM
#79
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The goals are quite simple. Accept whatever it will deliver around 35psi on E85 (fuel system permitting) while maximizing transient response and spool characteristics, and care for it such that it lasts a long time.
It's easy to make power
It's easy to have quick spool
It's easy to make it last
The real challenge lies in getting all three at the same time.
It's easy to make power
It's easy to have quick spool
It's easy to make it last
The real challenge lies in getting all three at the same time.
Dec 23, 2008, 02:43 PM
#80
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The goals are quite simple. Accept whatever it will deliver around 35psi on E85 (fuel system permitting) while maximizing transient response and spool characteristics, and care for it such that it lasts a long time.
It's easy to make power
It's easy to have quick spool
It's easy to make it last
The real challenge lies in getting all three at the same time.
It's easy to make power
It's easy to have quick spool
It's easy to make it last
The real challenge lies in getting all three at the same time.
And not many people can do all 3.
Mark
Dec 23, 2008, 03:26 PM
#81
Exactly, which is why I reasoned that if I can get 600+whp from this twinscroll setup that already delivers 20psi (1.4 bar) by 4000rpm in a 2.0L, while having enough airflow capacity to get a broad powerband inside a moderate rpm range, I'll take that all day long.
Dec 24, 2008, 05:53 PM
#82
Ted. 
I hope it performs up to your expectations and doesn't flake or deteriorate. Any chance it the HPC coating? Merry Christmas.
Dec 25, 2008, 10:43 AM
#83
I am not convinced these paint-like coatings work nearly as well as advertised, but if it works half as well and does not flake, it is better than nothing. I prefer the Swaintech product, but I don't trust it being exposed to direct moisture.
Dec 25, 2008, 09:48 PM
#87
No manifold is built with exhaust wrapping in mind, the fact that all manifolds don't break from using wrap isn't from the fact that it isn't causing fatigue but that some manifolds can take the extra heat.
I guarantee you GOOD thermal coatings (swain is one of them)have much more than the tiny benefits you mention.
For thermal coatings to keep heat in, like manifolds, I wouldn't be surprised if the main gain comes from reduced water and intake air temps just from the drop in underhood tempreatures, the gains from keeping heat out like what they use for coating pistons and such can drop temps dramatically, which help lots of things...
Scorke
