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Main : Mechanical : Engine Twin side-drafts - angled manifolds

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Twin side-drafts - angled manifolds
Twin side-drafts - angled manifoldsPopular
SubmitterddgonzalMore Photos from ddgonzal   Last Update2002/7/14 4:17    Tell a friendTell a friend
Hits11780  Comments6    0.00 (0 votes)0.00 (0 votes)
See how these manifolds are angled, presumably to clear the LHD brake master cylinder

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The comments are owned by the poster. We aren't responsible for their content.

Poster Thread
matbighat
Posted: 2005/7/2 13:42  Updated: 2005/7/2 13:42
No life (a.k.a. DattoMaster)
Joined: 2001/1/30
From: California
Posts: 2972
 Re: Twin side-drafts - angled manifolds
Yeah, if you don't got one of these manifolds, you need these custom master cylinders:


Poster Thread
jaimecidpedro
Posted: 2002/7/26 2:52  Updated: 2002/7/26 2:52
No life (a.k.a. DattoMaster)
Joined: 2001/8/2
From:
Posts: 1354
 Re: Twin side-drafts - angled manifolds
This is kind off strange. Theoretically one port is larger than the other one,it has to have some effect on performance. Probably not too bad,but...
Jaime

Poster Thread
ddgonzal
Posted: 2002/7/26 3:58  Updated: 2002/7/26 3:58
Moderator
Joined: 2001/5/3
From: Hawaii, USA
Posts: 31107
 Re: Twin side-drafts - angled manifolds
Interesting observation ... I hadn't thought about that. I'm sure you are right, but I doubt you could tell without a stopwatch or dyno.

Consider equal-length headers (extractors) vs. un-equal length headers. Yes, the equal-length give slightly more horsepower (because the pulses are more evenly spaced?)

I suspect it's a somewhat more important in the intake runners. However, in many stock cast intake manifolds some runners are longer than others. Think of straight-six manifolds with single carbs.

For a competition race car any improvements are important to gain an edge on the other competitors ... but for a street car does it really matter?

Poster Thread
rally-a-coupe
Posted: 2002/7/26 5:41  Updated: 2002/7/26 5:41
Home away from home
Joined: 2002/4/1
From: Christchurch New Zealand
Posts: 417
 Re: Twin side-drafts - angled manifolds
for all you LHD dattos out there has any one ever put IDA's on a 1200 you could get a manifold cut it in half and elbows in it they might hit the bonnet though just a thought

Poster Thread
mikko1200
Posted: 2002/10/27 12:13  Updated: 2002/10/27 12:13
Just can't stay away
Joined: 2001/2/28
From: Finland
Posts: 78
 Re: Twin side-drafts - angled manifolds
That picture looks familiar...
It