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irsbuggy · Guest

im building a beachbuggy with an alfa 33 16valve engine.im using dellortos from 1.7 8 valve motor on homemade manifolds.will the 16 valve dizzy be ok with this setup?will i need to tap manifolds for vacum advance?if 16 v dizzy no good ,can i use dizzy from 8 valve motor?what bhp should this produce??more than injection?will carbs need rejetting?any advice gratefully accepted....

lesthegringo · Alfasud Joined: 23 Jul 2003 Posts: 97

The 16v dizzy will work fine, but you will need to put the vaccuum advance on as per the factory engines.

As for the carbs, yes, you will need to rejet them, the mains and airs will almost certainly need changing and possibly the emulsion tubes too (expensive!). Don't bother asking someone exactly which jets to put in, because even if they have a 16v with carbs, what their engine wants may not be what you engine wants. It may help as a guideline to get it running but that is all, unless you are very very lucky.

Go to a rolling road to set them up, trust me it will be cheaper and the car will be better all round - I gained 36 hp at the rolling road, and it cost me £118 - that is by far the cheapest power I ever found

Les

Admin · Posted: Tue Aug 19, 2003 9:07 pm Post subject:

Hi

Don't think the 16V dizzy will work. It is just a dizzy with no effect on the timing so will not work with an old style vacuum advance ignition system.

All the best

Keith

Serpent33 · Posted: Sun Sep 07, 2003 10:17 pm Post subject:

The IE dizzy will not work well. You will need to get the carby dizzy with mechanical advance!
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Guest · Posted: Sun Sep 21, 2003 9:01 am Post subject:

Strictly speaking, I'm not sure you need vacuum advance. Mechanical advance is needed and the tuning shop that does your jets on a rolling road, might also be able to recurve the advance of the distributor to suit you car.

My understanding about vacuum advance is that it doesn't have much effect at full throttle (very low vacuum), but is used to give more advance and therefore better fuel economy at part throttle. Many cars setup for racing don't have vacuum advance, so if it's extra work to install and you are mainly using the car for track days, hillclimbs etc, then don't worry about it.

Regards, Lex
Auckland/New Zealand

Admin · Posted: Thu Sep 25, 2003 5:38 pm Post subject:

Hi

The main problem is that the 16V dizzy does not have any pickups for the ignition timing at all (that is done through the crankshaft position sensor) so if you tried using it with the old style ignition system you would have nothing to trigger a spark.

All the best

Keith

irsbuggy · Guest

may just stick with the injection....what bhp is it with injection?what estimates with 40mm delortos?anybody know where i can get a wiring diagram,so i can fathom out the vultures nest of wiring?....bloke i bought it off said he would carefully label everything.....did he hell......

Sergio · Posted: Tue Sep 30, 2003 7:38 pm Post subject:

A noraml non-CAT 33 16v pumps out 137Hp, and the CAT version 132hp... but I've heard you can easily take them over 150hp with a Air filter, sports exhaust and chip Very Happy

All the Best

Sérgio

alferr · Posted: Tue Sep 30, 2003 11:59 pm Post subject:

i have an the 33 workshop manual on my computer,

email me if you want it, its too big to post

its 18.6mb
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irsbuggy · Guest

obrigado......

Sergio