1.3 SR ENGINE.13sb

[Edd]

I need a little help with some information on 1.3 engines.

Are all Vauxhall 1.3 carb engines all the same ?

is the difference between a 1.3L and a 1.3sr just the carb ?

as astra mk1 and 2 also have 1.3.

i need a 13sb engine so im just trying to find out if i have to get one from a SR or not.

thanks in advance.

Edd

[AlexW]

Certainly the later SR's (Not what i would call early ones) the carb is no different to the "L".

Early ones i know some 1.3's had a 1b carb? I expect mowgli will be able to help ya lol

[Edd]

i really need to know if the block, head and cam are the same on all 1.3 engines ?

as i wont be using the carb or inlet.

[Novasport]

Yes, they are all the same although the Mk1 Astra and earlier Nova engines are supposed to be stronger.

[Leeboo]

Yeah nova sr engine was the 13SB. The astra version of the 1300 was the 13S.

I had a 13S from a mk2 astra estate in my last nova, I think the 'book figure' for bhp was 75, whereas the 13SB is supposed to be 70bhp.

Maybe try to find out what the 'B' in 13SB stands for/represents.

[RickW]

my mate blew up his 13s engine. When looking for a replacement it looked liek the only difference was the inlet/carb.

[Leeboo]

My 13S got really tappety and the lifters seized in the head :wtf: .

I might have just got bad luck.

[garyc]

There a several different combos of inlets and carbs and I'm pretty sure thats why you see the variations in quoted HP figures. Apart from that they are more or less the same. Some of the MK1 astra heads have larger inlet ports and is often sought after in some forms of oval racing.

[Edd]

thanks for the info everyone.

Edd

[craig green]

What are you upto Edd?

[Edd]

What are you upto Edd?

all will be revealed shortly :d.

[marc69]

pre 87 sr have a single carb and later 1.3 and 1.4 use the double barreled carb(2nd barrel opens between 4-5thou revs) for an extra boost. Obviously these have a different manifold to the earlier ones. The difference between the normal 1.3 and sr1.3 is the cam, to be honest you wont notice that much difference as even in standard form the torque for everyday driving is till good in ratio to the cars wieght

[Jack]

Hmm, according to the engine code thread:


B = IBC (Inverted Brayton Cycle, in laymens terms, the recurculation of gasses)

[sport]

pre 87 sr have a single carb and later 1.3 and 1.4 use the double barreled carb(2nd barrel opens between 4-5thou revs) for an extra boost. Obviously these have a different manifold to the earlier ones. The difference between the normal 1.3 and sr1.3 is the cam, to be honest you wont notice that much difference as even in standard form the torque for everyday driving is till good in ratio to the cars wieght


Always thought the cams were the same????

[garyc]

1.3 cams are all the same.(well apart from the injection ones used in europe!)

[therealnovaboy]

i think. may not be right, that the early ones have peirburg carbs(manual choke) and the later ones have a weber(auto choke).

the early srs had an inherant fault with the cams, it was in the haynes if im right that you have to drill out an oil way to reduce cam wear. the early cams used to develop early follower wear. im sure its in the haynes somewhere but i dont have one at hand. this however was resolved at the early face lift ie snowplough to gte/sr style bumper im nott sure if it was a differant cam/part or just the original with better oilways

[belmonty_daryl]

early sr's 13sb engine have pierburg 1b1 carb. later 1.4sr have pierburg 2e3 tiwn choke carb which has auto choke. astra mk2 with the 13s engine has the pierburg 2e3 twin choke carb through out the range of years.
nova 1.3sr had 69hp
nova 1.4sr had 82hp
astra 1.3 had 75hp

[garyc]

That was problem with the cam carrier not the cam, the newer ones have extra drillings to lubricate the end bearing nest to the dizzy drive.

Also the 75Hp Mk1 astra has got a Varajet II carb on it. The opel Kadet has 35PDSI carb on with a different manifold too.

[Mk1'SR'Dan]

i could of sworn the SR engines code is 13N... thats what Total vauxhall say but my vauxhall parts desk call it a 13S, meh... theres instructions on how to drill that oilway in the green haynes manual, either way id imagine most inlets would fit most heads, ive had many combinations, i used to have a 1.4 squareport head with the 1.3 inlet and carb which seemed to work alright until i blew two conrods, and when ithought i was going to put my 40s on my 1300 i bought the 1300 DCOE manifold and its now bolted to my 1400 lump, it'll work alright but wont flow as well as id like it too, need to get my 1400 head worked and matched to the inlet methinks, pierburg 2E3s should be banished to hell, my 'auto' choke died and i had to put it on manually to get the car started which was rather annoying, good carb apart from that, i was going to convert it to a manual choke before i got my 40s...

[craig green]

Good info in here, though some about the carbs is wrong.
1.3 SR's had the auto choke 2E3 from 86/87??

[Balley]

1.4 sr is 75bhp, the sri is 82bhp

[sport]

i think. may not be right, that the early ones have peirburg carbs(manual choke) and the later ones have a weber(auto choke).

Both carbs were peirburgs diffrent codes.

[jimbob-mcgrew]

lol the back and forth info in this thread is hillarious. talking of that oil way in the dizzy drive, im gonna have to do that to mine i think, probably get loads of swarf into the cam carrier and she'll sieze on me knowing my luck lol.

[belmonty_daryl]

1.4 sr is 75bhp, the sri is 82bhp

my bad