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empi duel carbs
shaned - October 21st, 2011 at 06:38 PM

Hi Guys
I found these on the web $350 delivered sounds like a good price . Are they worth it and are they any good ?
Any advise much apressiated

IWL_86 - October 21st, 2011 at 07:26 PM

I've used the HPMX carbs!! I like em better that webers, but im weird!

Bizarre - October 22nd, 2011 at 09:11 AM

depends what model

I am not a fan of them

vw54 - October 22nd, 2011 at 10:04 AM

J u N k

u will waste more money trying to get them going than there worth

matberry - October 22nd, 2011 at 10:10 AM

Quote:
Originally posted by IWL_86
I've used the HPMX carbs!! I like em better that webers, but im weird!
Yep we know your very wierd Isaac.......I've had major problems with 2 sets, 40 HPMX and 32 PDSIT's. I wouldn't bother no matter how cheap.

IWL_86 - October 22nd, 2011 at 05:33 PM

Matt is right, they generally suck! Don't waste your time and money with the EPC/ICT's. They don't work!
I had a set of 44 hpmxs that I got cracking with some effort and a truck load of dodgyness!
Only reason I gave them a go because they were a freebee!

I think that Jake Raby fellow believes in them tho??

matberry - October 22nd, 2011 at 06:36 PM

As with anything, when they're good they're good (maybe, we'll give Jake the benifit of the doubt). Same with any setup. The problem I see is, do you want to take that chance. The HPMX's I had trouble with were owner fitted and had also been to another pro VW shop. They were the first set to come to me so I was happy to check them out and fix his problem. How hard can it be? Ends up they had been difficult to tune from new and it was due to a manufacturing fault where there were many cracks from the fuel bowl to the chokes in one carb, it was due to poor quality alloy that fatigued during machining and seemed very porus ....ended up as JUNK, unrepairable!

I prefer Webers

IWL_86 - October 22nd, 2011 at 06:52 PM

Amen brother! The casting is rubbish! It's like a cadbury aero bar! Lol!
Good for a laugh!

Yogie - October 23rd, 2011 at 01:48 PM

I have seen Jake posting about the HPMX and he has said that he modifies them a fair bit and then they work OK. Don't know what he does though but I probably wouldn't want to go through the trial and error phase of them.

Yogie

Bizarre - October 23rd, 2011 at 02:14 PM

Quote:
Originally posted by Yogie
Don't know what he does


and it wont be in the public arena either

They are just too hard work

matberry - October 23rd, 2011 at 02:45 PM

There's people here too that have used them, and like them. There's also the argument that the trouble was only with the early ones, but the set I saw were since the 'rigorous inspection and testing by vw guru whom I can't remember' had started. Aparently they make more power and are generally set up richer than a Weber.

IWL_86 - October 23rd, 2011 at 03:16 PM

Mine were way out. 44 hpmx. 36mm vents, f7 e tubes, 155 mains, 65 idles, 55 pumps and 220 airs! But what's even funnier is those numbers have no correlation to the actual sizing. Crazy buggers!
How many people here have thrown time/money at these things with no result?

I ended up putting one on my 4age motor on a custom manifold, it worked well. Ive got a video somewhere of anyone is interested.

matberry - October 23rd, 2011 at 03:20 PM

Maybe that's where the issues come from, the jets aren't consistant, may explain alot of issues.

Put up your vid, an HPMX working well has to be seen, gotta at least be good for a laugh that it's cool on a waterpumper :lol:

IWL_86 - November 2nd, 2011 at 07:30 PM

Finally found a video of the HPMX on the bus. hope it works
http://s1115.photobucket.com/albums/k550/IWL_86/?action=view&current=VIDE...