Dcom Or Dcoe?

[trialster 0]

hey guys, might be buying some DCOM 40mm weber carbs which will eventually be used on my mi16 engine.

 

just wondering if you guy's know the difference between DCOM and DCOE carbs?

 

ta!

 

Will

[cybernck 403 1 Cars]

don't know much about carbs, but i'd say 40's are too small anyway.

 

DCOM40 were used on a 1.3 8v 205 Rallye!

 

 

a quick search would have answered your question though:

 

http://forum.205gtidrivers.com/index.php?showtopic=64301

[iamjackiechan 0]

40's will definately be to small, go for some 45's or 50's

[Rom 0]

Yes 40s is too small. Even with max jetting etc i think there going to be very close to there limit.

 

I ran 40s on my old 1.3 Nova !

[trialster 0]

cheers for the replies!

 

were there two used on the 1.3 rallye, or just one?

[trialster 0]

2 me thinks!

 

ignore me

[unariciflocos 49 1 Cars]

Go with bike carbs, cheaper and easier to set up.

[trialster 0]

spose, but then they only go up to about 40mm dont they?

[chris-gti 14]

Yeah but there's 4 of them not 2 so instead of having 2 x 40mm =80 you have 4 x 38mm = 152

[cyman 1 1 Cars]

45 DCOE Webber or Dellorto will do the job just fine.

You may have to change jetting and choke sizes to suit the engine.

most good rolling road/tuners will be able to guide you on this.

[trialster 0]

Yeah but there's 4 of them not 2 so instead of having 2 x 40mm =80 you have 4 x 38mm = 152

 

but there are 4 on a set of webers? or am i blind :S

[chris-gti 14]

but it's only 2 carbs really. i dunno, i know they work well though.

[Saveit 0]

You can do with 40mm webers. Youll be very close to, if not at their limit when pushing your engine fully, but it will work. Youll maybe only be going at 80% of the engines maximum power above 7000 rpm. But then again, how often do you actually need the last rpm above 7000?

[drmo 5]

45 is a better option, becouse with 40's you will end up with maximum size of venturis 34mm, which is too small on a Mi16 engine. Tehnicaly you could use 36mm venturis but it is not advised because of the air speed beeing slower.

Edited January 27, 2009 by drmo

[Saveit 0]

36mm venturis is okay for the 40's. Its not as good as 45's, but you can use it.

[welshpug 1,675]

just use throttle bodies

 

You need to sort the spec of the rest of the engine before choosing them, no use bolting on a set of touring car sized quad 52's on a standard set of cams and pistons...