Log vs vx mani?
 

I'm, planning on putting a 42/48 garret turbo with internal wastegate on a D16Z6. I have a vx manifold just using space in the garage, so I was thinking about using it. I do, however, have access to a TIG welder at school, so I've been thinking about making my own log mani, its just that I haven't tried a TIG welder before, so I'm a little concerned about the result :p

Whats the difference in performance and innstallation? I've read that with a hf mani, the turbo will hang a little low, so the oil drain will be difficult? How about PS (I have no AC)?

Any thoughts?
Thanks

Re: Log vs vx mani?
 

PS is compatible with the HF mani.

Re: Log vs vx mani?
 

id go with the hf mani, i am going with it on my z6, just gasket match and port thr runners, by the way, anyone no where i can pick up some polish for porting and polishing? and i think the hf mani flows better then a log anyways

Re: Log vs vx mani?
 

it does.

Re: Log vs vx mani?
 

Does anyone actually have proof of an hf style manifold out flowing a log manifold

Re: Log vs vx mani?
 

ive never seen solid proof

Re: Log vs vx mani?
 

interesting, i switched from a PORTED hf manifold to a log manifold and made 43whp differance. same exact psi. no other changes.

Re: Log vs vx mani?
 

thats pretty crazy. maybe the hf was leaking.. either way, thats cool that you made 43 free ponies just like that.

Re: Log vs vx mani?
 

I can't imagine him being serious. I've seen a log make 270 and a ramhorn then do 300. And I think a log would flow better than an HF, but no proof.


JP

Re: Log vs vx mani?
 

I would also think a log would flow better than an hf, have you seen the ports?

Not to high jack or anything but is it true that the top mount generates more power than a ramhorn?