1.3 SR Manifold info?

[krobinson]

Is this a Standard 1.3SR manifold, or is it a Twin Choke Upgrade manifold?

Its on ebay and say's its for when you add a webber carb, but it just looks standard?

http://i12.ebayimg.com/02/i/01/01/b1/80_1.JPG

Keith

[Cheese]

Its a standard manifold for a 1300 SR with a Pierburg 2e (or whatever its called) twin choke carb. You'll need an adapter plate to bolt to the manifold, before you can bolt the carb on.. :)

[Ste_Nova]

it's had the standard studs removed so i expect it had a weber fitted at sometime

?5 max

[nova_rally]

If that's a standard 1.3SR manifold, then what shape are the ports on the head (for a 1.3)? I've just been offered a "1.2" Head that has square Ports, not round ones and as the 1.3 manifold's supposed to match... I'm sure I read somewhere that it's 1.4SRi heads that have Square Ports?

I'm confused! :?

Alan

[rgv_stu]

thats a 1.2 spi head then - leave alone

[Ste_Nova]

If that's a standard 1.3SR manifold, then what shape are the ports on the head (for a 1.3)? I've just been offered a "1.2" Head that has square Ports, not round ones and as the 1.3 manifold's supposed to match... I'm sure I read somewhere that it's 1.4SRi heads that have Square Ports?


1.4sr/spi - square
mpi - round
1.2/1.3 - arched

[nova_rally]

Thanks - just thought I'd check!

Alan

[Ste_Nova]

Thanks - just thought I'd check!

Alan

:lol: anyway if you need a 1.2 head get onme from the scrappy... you don't have to wait to be offered one!

[nova_rally]

I've now got an Astra 1.3 Engine and gearbox thats replacing the 1.4SR - if possible I want to keep the 1.4 Bottom end and just use the Astra head and gearbox. Either way I don't need the 1.2 head. (wold be nice though!)

Alan

[Ste_Nova]

whats wrong with the 1.4 head and gearbox?

fit the 1.3 head on the 1.4 and you may lower the compresson

[nova_rally]

(According to the guy thats supposed to be fixing the car) Theres a crack either in the head or the block. Swapping the heads first so we can find out if it's there coz I don't think my budget will stretch to swapping the engines ouright. Of course if it still fails after swapping the heads I guess I'll have to.

According to MC's article and pretty much everyone else it seems the 1.3 SR head is better than the 1.4SR - so I'm hoping I can do that and not have to do a full engine swap.

1.4 gearbox is in good (in fact excellent) condition but isn't quick enough - fitting the 1.3 will give it quicker acceleration. :P

I'll definitely be avoiding the 1.2SPI head, thanks for identifying it! :)

Alan

[Ste_Nova]

(According to the guy thats supposed to be fixing the car)

why u not fixing yourself?????????????????????????????????????

[nova_rally]

Coz It needs the inner wings welding, new front wing, rear arches need de-rusting and then it'll want a respray - can't do that lot myself. (well maybe the new wing I could if I bought a secondhand 1 in red!) :lol:

Then it would need to go to the garage for work for the MOT...

Made sense to take it straight there (at the time!) :lol:

Alan

[Cheese]

Get the head crack tested before you fit it to make sure its ok :)

[nova_rally]

The new (astra) engine's in perfect condition - its the old (nova)1 thats the problem.

If I could do crack testing I would have done it already to find out if there actually is a problem, as I reckon theres nothing wrong with the head or block.

Alan

[Ste_Nova]

just take it to an engine builder and get them to pressure check it

[nova_rally]

Any of them in North Wales?

Alan

[beghy]

hey did someone say on page 1 that a 1.3 head on a 1.4 lowers the C/R, well mate your wrong, i personally think thats the best mod i ever done to my 1.4. got 101bhp out of it in june and on the way to PVS i hit 125mph.

try it u wont regret it!

[Ste_Nova]

well peeps fit the 1.2 head to raise the compression on 1.3/4... so i expect fitting the 1.3 head will lower it... but it will improve flow

101bhp with a hea swap??? :lol:

[Ste_Nova]

Any of them in North Wales?

Alan

yeh shit loads just grab your yellow pages

[nova_rally]

kool, I'll try and find 1. Thanks!

Alan

[novaexplod]

so wot would happen if u put a nova 1.3sr head on a 1.2 nova block? :lol:

[Ste_Nova]

low compression... so slow