Volvo RWD 1800 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 9/2002 1800 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Manifold/header recommendations 1800 1971

posted by  B20Paul. on  Sat Apr 29 12:06 CST 2017
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Mon Oct 20 10:54 CST 2014
[RELATED]

I'm still looking.

There was one company that had FOUR different sizes, the smallest being 38-44mm OD primary-secondary,this is what you need for stock to mild 1.8 to 2.1L donks. 2nd best is 44-44 which is the same as stock except the middle pair get two primaries as well. This would be marginal better than stock, but only marginally. The stock exhaust manifold dampens the high frequency sound alot, but in reality is a 3-2-1 manifold. Still, if you have a cam with 220° @0.050" with 110°-111° LCA°(or less, I.e. K, D or VV-61) you have no effective overlap triangle, so you just need free flowing headers. If you can't find 38-44, then 44-44 will be adequate.

The ipd headers are JUNK. The vpd header are jack of all trades, master of none, and the new collector is rubbish. KG Trimning are too big for mild street engines.

--
An alternative falsehood is an alternative fact in a post truth world. - TG.






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New Manifold/header recommendations [1800][1971]
posted by  someone claiming to be Jb  on Sat Apr 8 05:47 CST 2017 >


<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.