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Downdraught intakes

Posted: Thu Mar 01, 2007 9:57 am
by ihatesissycars
Hello all,

Anyone know a cheap source of downdraught carb/throttle bodys intake manifolds for rv8's?

Posted: Thu Mar 01, 2007 10:09 am
by JSF55

Posted: Thu Mar 01, 2007 10:37 am
by Lewis
.......Actually working on a FloWorks model of a Rover plenum at the moment (and associated inlet manifold) to see how well the standard one flows and what's the maximum mass and volume flow rate.

Then I intend to rework it with single larger throttle body, dual throttle bodies, triple throttle bodies (al la ACT kit), then a front-facing throttle body, THEN finally (my insane idea) 3 throttle bodies placed on top of the plenum.......

Should generate some interesting results :lol:

Posted: Thu Mar 01, 2007 11:31 am
by ihatesissycars
I should've been more specific in saying i need the short cast types like in Ian Stewarts engine!

Posted: Thu Mar 01, 2007 1:14 pm
by pitsnow
John Eales does one, I think it is in the region of £280.
The good news is that his manifold has the carbs / throttle bodies facing each other (oposite banks) This will make the linkage better!

I don't think it is possible to do this shorter than the JE one.

Image

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Call him as the manifold is no longer shown on he's web site.

http://www.rover-v8.com/JEEngineering/w ... endocument

Posted: Thu Mar 01, 2007 8:48 pm
by ihatesissycars
Thanks Pits, that the sort of thing i'm after! I'll give him a bell!

Posted: Thu Mar 01, 2007 9:55 pm
by bill shurvinton
Ask Phil Ringwood if he wants to sell his setup

Posted: Thu Mar 01, 2007 9:59 pm
by Lewis
Maan that downdraught setup looks gorgeous.

Might have to see if I can fabricate something like that :lol: (not a hope in hell, still, I'll have a go :P)

Posted: Thu Mar 01, 2007 10:33 pm
by ihatesissycars
Errr nah Phil had problems with his. Someones asked me to make bike itb setup for them so this i thought would be the easiet route.

Posted: Sun Mar 04, 2007 12:21 am
by bill shurvinton
The initial problems with Phils was fixed (hole between runners). Talking to him he was just happier tuning a plenum system.

Starting with an IDA manifold isn't the best way to do a bike ITB setup. That Dave we were talking about on emails does have laser cut RV8 manifold parts that would be a better starting point, but you end up with exactly what Phil has (hence better to buy his if he is selling.

Posted: Sun Mar 04, 2007 1:48 pm
by kiwicar
Hi Bill
don't supose you know if anyone does a kit for a Chevy small block on throttle bodies? :D
Mike

Posted: Sun Mar 04, 2007 2:00 pm
by ian.stewart
kiwicar wrote:Hi Bill
don't supose you know if anyone does a kit for a Chevy small block on throttle bodies? :D
Mike
http://www.twminduction.com/

Ian :D

Posted: Sun Mar 04, 2007 6:40 pm
by kiwicar
thanks Ian, I shall bookmark it and read the PDF over the next week
Mike

Posted: Sun Mar 04, 2007 9:30 pm
by bill shurvinton
If you can get an inlet manifold gasket then we should be able to get one made. The guy I know builds them can need a bit of nudging to produce them, but if you are not in a tearing hurry the price is good.

Posted: Sun Mar 04, 2007 10:25 pm
by HairbearTE
Inglese induction do downdraught inlets and carbs for chevys and other v8's. The website currently has IDA and IDF versions but i'm sure back in the day they also did a DCNF inlet for the small block chevy that arranged the carbs inline like and old ferrari carb set up. Looked fantastic with the stubby siamesed trumpets.http://www.inglese.com