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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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Poster Thread
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
Posted: 2002/7/26 2:52  Updated: 2002/7/26 2:52
No life (a.k.a. DattoMaster)
Joined: 2001/8/2
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...

Poster Thread
Posted: 2002/7/26 3:58  Updated: 2002/7/26 3:58
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
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
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...