RS Motorsport :: Classic Speed Restored

MK1_Oz · Posted: Wed May 26, 2010 2:02 pm Post subject: Inlet Manifold Suggestions

I know I asked this before but blowed if I can find where.....

What is the best inlet manifold for 48 DCOE on a Pinto? I have been told before that some cannot be ground out to port match.

Roger Miller · Posted: Wed May 26, 2010 6:32 pm Post subject:

Make your own.

Warren Heath · Posted: Wed May 26, 2010 7:48 pm Post subject:

MK1_Oz · Posted: Wed May 26, 2010 7:58 pm Post subject:

Is there a tech write up on how to? I would assume that it would be a case of getting the correct (48mm) mild steel (??) tube, welding on some flat plate (5mm?) each end with ports cut out and drilling bolt holes? Is it really that easy??????

I know there must be a science to working out the length of the inlet tubes......

I will search here and google......

Warren Heath · Posted: Wed May 26, 2010 9:05 pm Post subject:

MK1_Oz · Posted: Wed May 26, 2010 9:11 pm Post subject:

Cheers Woz Anxious

Danny M · Posted: Thu May 27, 2010 8:15 am Post subject:

Glenn if you send me a tube type manifold it wont be getting used as they flow badly and require far to much welding

Danny

Roger Miller · Posted: Sun Jun 13, 2010 8:43 am Post subject:

Spotted this on Turbospud 4 300 quid.

MK1_Oz · Posted: Sun Jun 13, 2010 10:24 am Post subject:

Well that is a sexy looking bit of kit Roger!!!!!! Anybody know if they flow any good though????????? (Is this the tube type manifold that Danny referred to as not being so good?)

Danny M · Posted: Sun Jun 13, 2010 4:19 pm Post subject:

That one looks a lot better than most but I'd want to see how it fits and flows as most tubular manifolds have tubes which are too thin and don't allow for much in the way of changing shape to make them flow as we do a fair bit to cast manifolds to change the shape and flow characteristics as I am yet to find a tubular manifold that flow correctly. The other thing is that most tube manifolds are too long as this one may be but I might buy one and have a look as I have thought of getting a friend with a cnc to turn some bespoke inlet runners as length is quite important as too long has it's own dramas as well as the problem of carby clearence to the inner guard. The other thing to think about is the fact that cylinder no.1 is quite straight and will restrict the space for a distributor which is always a drama with a pinto but you can fiddle with the runners to make them flow the same even with the different angles

Danny

MK1_Oz · Posted: Sun Jun 13, 2010 5:13 pm Post subject:

Thanks for that Danny. So even a "simple" inlet manifold is not as simple as a tube turned down from 48mm one end and to whatever the inlet on the head is at the other end?

....I have so much to learn........... Embarassed

Roger Miller · Posted: Sun Jun 13, 2010 8:55 pm Post subject:

Dan,

whats a good length ?

Most are 76 mm. Is this too long ?

Roger Miller · Posted: Sun Jun 13, 2010 9:02 pm Post subject:

http://cgi.ebay.com.au/DCOE-CARB-THROTTLE-BODY-ALLOY-FLANGE-MANIFOLD-/110537922876?cmd=ViewItem&pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item19bc92d93citem19bc92d93c

Warren Heath · Posted: Wed Jun 16, 2010 7:15 pm Post subject:

stuart · Posted: Fri Jul 09, 2010 10:39 pm Post subject:

So people/Danny what is the best off the shelf brand of inlet manifold?? Mangoletsi? Redline? are ther other brands i know burtons sell some but not sure what brand they are?

Danny M · Posted: Sat Jul 10, 2010 3:24 am Post subject:

Generally find the Redline which is a copy of the old Warneford manifold and the castings seem reasonable for the amount of material we have to take out of them as most of the others fall to bits

Danny

gen mk 1rs2000 · Posted: Sat Jul 10, 2010 10:17 am Post subject:

was that add or remove material from the manifold dan ? Wink

Danny M · Posted: Sun Jul 11, 2010 1:53 am Post subject:

Shut up Steve!!!!

Noono · Posted: Sun Jul 11, 2010 11:14 pm Post subject: