do you guys think that i can mount a set of 40mm dellorto side draughts on my 1108 when I fully mod my head with a cam etc, as i've got a set laying at home. or if not will it work on a 1242cc fully modded? sweet.
Technical Sidedraughts on 1108
- Thread starter M@nticore
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Technical Sidedraughts on 1108
Yeah, I'd think the 40s would be a little large for an 1108cc... your 1242 option sounds better to me! "There's no substitute for cubic inches" as the Americans said.
You'll have to make a manifold somehow - should be a challenge!
-Alex
You'll have to make a manifold somehow - should be a challenge!
-Alex
OP
OP
Thanx, would have prefered to go to injection but don't have the cash now, as they want to as me an aarm and a leg to convert.
Twin 40s are still well over the top for the 1242. Even 36 is a bit on the big side unless you want to go outright racing with it revving the engine to a five figure.
Yes, I agree, Oldschool...
Thinking about it, I used to have 40s on my 1498cc, but I knew someone else with 36s on 1498cc and they were fine too. You have to be careful with the (replaceable) venturi size (mine were 32) and the jets, otherwise the idling will be a disaster and off-idle it'll be lumpy too. But get it right and it drives like a dream...
-Alex
Thinking about it, I used to have 40s on my 1498cc, but I knew someone else with 36s on 1498cc and they were fine too. You have to be careful with the (replaceable) venturi size (mine were 32) and the jets, otherwise the idling will be a disaster and off-idle it'll be lumpy too. But get it right and it drives like a dream...
-Alex
Hey there, yeah all the above points a good. You must ask yourself what are you going to use the car for, street or race. Do you want lumpy cam and a screamer, or a easy drive street car. My race 1295 was on 40mm DCOE, with the largest chokes possible and it could of used larger carbs as I was told but numerous perple who dynoed the car. 42mm DCOEs ( a very rare carb) would of been better. My current 1580 is on 45mm and handles them with ease. I have viewed pictures and read about a Dallara 1100cc fiat 128 race car that ran on 48mm DCOEs and according to the italian dallara race enginers, they keep putting bigger and bigger chokes on that and it was no problem, but as you can imagine that engine was full race 10000 + rpm. Back to your car I drove my 128 with the 1298cc engine and 40mm carbs on the road and it was very easy, so I would say you could do the 1100cc but it may be a little lumpy, but if set up correctly it could be done,
Have fun,
Slapp
Have fun,
Slapp
OP
OP
emailed a dellorto agent in the uk yesterday, and he replied that it would work on a 1242 modded engine with no problems.
OP
OP
so what should be my best option, fully modded 1242 with sidies. or finish my turbo project on my 1108?
personally I love that noise that the carbs make , obviously you can make more HP with the turbo, but there is something about making a N/A engine produce big HP that is realy rewarding.
And NO turbo lag.
Be different go the carbs.
Just remember to get your engine dyno tuned and you will have trouble free driving.
Slapp
And NO turbo lag.
Be different go the carbs.
Just remember to get your engine dyno tuned and you will have trouble free driving.
Slapp
I agree with slapper, though the turbo would ultimately make more of a beast. There's something about that explosive power... of course, this may result in explosive engine parts, so you're safer with the carbs.
I always remember when I started up my browser a few years ago - the home page is a news site - and there was the headline "Are Carbs Really Bad?" Why yes, I thought, fuel injection is generally more reliable and precise. Then I realised the article was about the Atkin's Diet.
-Alex
I always remember when I started up my browser a few years ago - the home page is a news site - and there was the headline "Are Carbs Really Bad?" Why yes, I thought, fuel injection is generally more reliable and precise. Then I realised the article was about the Atkin's Diet.
-Alex
OP
OP
was thinking of installing a 1242 16v engine into the uno, and do a full N/A conversion. how does this engine operate with a turbo??, what is the compression ratio?.
