PWL

Anybody have any thoughts about the DH-Racing ported & polished manifold?

Is it any good for a NA engine?

I think that it is the manifold that gzob uses on his F24 stroker engine, it seems to do very well on this engine.

Its on ebay, search for S2000 manifold (I can not get the link to work)

PWL

ComposiMo

... hard to tell from the pics

i'm assuming you are talking about THIS ONE

But it looks like in the pic at the bottom (THIS ONE) going into the manifold that the inside of the plenum is 'worked' only about halfway... you can see the line where he stopped...

Also, the only other pics show that the runners have been worked a little bit. And other than that, it seems like its just been bored out for a bigger TB. And of course it flows more if it has a bigger TB on it... doubt the porting on the inside does anything for it... the biggest place to port the manifold would be the "velocity stack" areas, and i don't see a parting line where he cut the manifold open to get to the top of each stack to work on the higher velocity areas.... Not to mention, that if he worked the runners to any great degree, then you'll absolutely have to get your head portmatched as well...

But that manifold is $589 by itself (normally $620 yikes!).... but you already have a stock manifold... you could send it out and have it port matched by another shop, and probably buy a throttle body from somewhere for less than that total price for just the manifold. Check out www.maxbore.com ... he'll overbore your TB for $100, and he'll also do port matching iirc.

Personally, i'd spend the money elsewhere unless you really just have a hankering to do something to the intake manifold, or really want an overbore throttle body.

Urge

DH simply ports, which is bad. It slows flow. You need to reshape the plenum and runners.

Try this. you will wait, but gains rival ITBs..

http://www.theoldone.com/components/cylind...S2000/s2000.htm

Scroll to the bottom.

PWL

Thanks for your advice, it makes a lot of sense, I will stay away from the DH-Racing manifold!

The Endyn manifold look VERY nice, does anybody have an idea of what the price is and what delivery time would be expected?

I am debating with myself if I should get some Jenvey ITB

NaCoupe

Stay far away from anything produced by Dave Hickman.

He is bad news.

This is not just hearsay.

His work is horrible and his customer service is worse

HKSdrift3r

If you got the $$ for itbs + management, then what are you waiting for?? lol.


The endyn manifold would be your best bet currently, not only does he know what he is doing, but reputable as well.

ABCVTEC

Has anyone even ran the Endyn manifold yet?

maluch

i have always been skeptical of performance parts highlighted in neon green...maybe it's just me. lol

ComposiMo

Heres what i did with mine... cost a LOT less, and the dyno certainly has not disagreed with it being there


Heres the inside after porting/polishing and a lot of smoothing and port matching for the TB...




And here it is with the sheetmetal plenum addition on it...






And installed with the 'real' throttle body

maluch

did you do that yourself?