The Triumph Dolomite Club - Discussion Forum

The Number One Club for owners of Triumph's range of small saloons from the 1960s and 1970s.
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PostPosted:Mon Sep 05, 2016 1:51 pm 
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Future Club member hopefully!
Future Club member hopefully!

Joined:Fri Aug 13, 2010 7:50 pm
Posts:572
Location:newton abbot, south devon
I'm to build a 1500 exhaust manifold and was wondering What size primaries you'd suggest. The engine has a pretty high lift cam, flowed head and is very shiny and pretty. I've made rover v8 manifolds before and used 1 1/2" pipe and have enough left, is it too big and therefore will slow down the gasses too much? I have all I need to build the manifold so would rather not have to spend out again but will if absolutely necessary.
Input please.


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PostPosted:Tue Sep 06, 2016 6:37 am 
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TDC West Yorks Area Organiser
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Joined:Tue Oct 03, 2006 4:52 pm
Posts:7746
Location:Halifax, West Yorkshire
The Spitfire 1500 tubular manifold would be a good place to start. As some of us already know, it can't be used on the Dolomite because it fouls the subframe. It would be useful a a guide for the primaries and would cut out some of the guesswork.

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Toledo Man

West Yorkshire Area Organiser & forum moderator
Meetings take place on the first Wednesday of the month at 8.00pm at The Old Brickworks, Wakefield Road, Drighlington, Bradford, BD11 1EA
****Meetings are currently on hold due to the coronavirus pandemic****
1972 Dolomite 1850 auto (NYE 751L - Waiting for me to give it some love)
2008 Citro├źn C4 Grand Picasso 2.0 HDi Exclusive (MA08 WCL - the workhorse)
1995 BMW E36 318i (M265 PNC - Project Bimmer, the 2nd car)
1991 Toyota Celica GT (J481 ONB - the current project car)
Former stable of SAY 414M (1974 Toledo), GRH 244D (1966 1300fwd), CDB 324L (1973 1500fwd), GGN 573J (1971 1500fwd), DCP 625S (1977 Dolomite 1300) & LCG 367N (1975 Dolomite Sprint) plus 5 Acclaims and that's just the Triumphs!

Check my blog at http://triumphtoledo.blogspot.com
My YouTube Channel with a bit of Dolomite content.

"There is only one way to avoid criticsm: Do nothing, say nothing and BE nothing." Aristotle


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PostPosted:Tue Sep 06, 2016 9:27 am 
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Future Club member hopefully!
Future Club member hopefully!

Joined:Fri Aug 13, 2010 7:50 pm
Posts:572
Location:newton abbot, south devon
I've found out that with 1 1/2 primaries they'll need to be 11" long before a y connector.


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