Will a 1.4sr carb + inlet off a 1991 nova fit my 1.2 nova?

[Snowface]

I got a mk1 1.2 nova and was wondering if the inlet and carb off a 1.4sr will fit mine?
In the 1.2 8v tuning guide on NL it says that the 1.4sr and 1.3sr inlets are very different. is this true?

I'm looking at getting a 1.4sr carb off a 1991 nova with inlet manifold and fuel pump. I know that the 1.3sr inlet will fit mine. Also would i have to re-jet the carb (either a 1.3/1.4) to run better on my 1.2?

thanks.

[beghy]

The 1.4 SR head & inlet manifold are very poor, they produce little Bhp and alot more torque than the 1.3. They were purposely made like this to make the later SR more driveable and it certainly is but its also harder to race it.
If I was you I'll stick to the 1.3 inlet with 1.3 SR CAMS and a 1.4 carb and believe me your little 1.2 will fly and probably produce well over 75Bhp.

Alot people may think im talking s**t but i done this to my mates 1.2 and that little bicth went better than my standard 1.3 SR.

If u want 1.3SR cams let me know coz i got one lying about at home somewhere just make me a offer

[James B]

what about if you have a 1.4sr engine, would you get more power from it by gettin the 1.3 cams etc like u said? or not......

James

[Aragorn]

the 14SR cam has the most lift outta all the nova engines (barring the C14SE and C16SE but there aint no info on those)

[Snowface]

the 1.4sr cam lifts .2mm higher than the GSI/GTE i think.
guess i'll have to have a look round the scrappies for the 1.3inlet and carb.
The 1.4sr and 1.3sr have the same carb i thought? Its a Pierburg 2e3.

[Will]

beghy Posted: Sat Apr 19, 2003 8:00 pm Post subject:

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The 1.4 SR head & inlet manifold are very poor, they produce little Bhp and alot more torque than the 1.3. They were purposely made like this to make the later SR more driveable and it certainly is but its also harder to race it.
If I was you I'll stick to the 1.3 inlet with 1.3 SR CAMS and a 1.4 carb and believe me your little 1.2 will fly and probably produce well over 75Bhp.


PMSL @ 75bhp, not a chance mate, not a chance, LMFAO

[Stuart]

pah 75bhp isnt enough from a 1.2 lol ;)

[Snowface]

i'm also getting a kent cam ast2k sport 'R. that claims to give upto 12bhp increase. and also K&N bolt on fitted.

[beghy]

PMSL @ 75bhp, not a chance mate, not a chance, LMFAO[/quote]


That NovaNutter has NO faith!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!

I forgot to say my mates 1.2 had SR manifold with a performance backbox, K&N and the timing was advanced. Not many people know this but the latre 1.3 SR produced 75Bhp where as the early ones made 69Bhp and the all 1.2 produced 55Bhp.
If my mates 1.2 ate my SR im sure his car produced well over 75Bhp, it only make sence.
If u think about it is possible, if the Fiat Punto Sporting is 1.2 with 16v makes 86Bhp so why cant a little 1.2 vaux make 75Bhp with a few modz!!!!!!!!!!!!!!!!!!!!!!!

[Snowface]

yeah. i got a performance back box on it (Powerflow) and i plan to get the GTE/GSI 4-2-1 exhaust manifold at some point.
Eventually i'm gona stick a 1.4sr engine in i think. but not till i'm older and insurance goes down. i should be able to squeeze 20bhp more for it standard.

backbox - 1-3bhp
4-2-1 exhaust manifold - 2-4bhp?
sr 2e3 twin choke carb with K&N - 5-10bhp
kentcam sport 'R - 12bhp they claim

that is only a rough guess/guide but i would have thought those mods should see me into the 70 margin.

[snapper]

20bhp is nearly a 40% increase in power. bit of an over guesstimate, i think. i'd be suprised if it broke 65bhp. you'd have to do proper engine work to see 75.

[nova dosed]

I cant see that much increase in a 1.2 mate.

My nova is a 1.4sr its had following dun to it

Kent Cam AST2
4 Branch
Full s/s exhaust
webber 32/34 dtml carb (and a stnd manifold though)
K and N

My BHP is 81bhp at mo but apparantly will increase to about 90 if i get the right vernieer pully and a new distibuter (as mine is fcuked)

So if the 1.4 SR head is crap then if i was to put a 1.3 sr head on it will make a difference is that what ur saying? Wud that not let less fuel and air through? What u think?

[beghy]

If my mate still had his little bitch I put it on the rollers just to prove you its possible.

Yo SNOWFACE believe me just do what i said and u wont be let down. if you dont gain 20Bhp you definately get 10-15, if i was you i stay away from ast2k sport 'R camshaft.
I dont mean to be rude but u need to do some homework on engines and how to get more power out of it.

[snapper]

So if the 1.4 SR head is crap then if i was to put a 1.3 sr head on it will make a difference is that what ur saying? Wud that not let less fuel and air through? What u think?


yeh it would make a difference. can't say how much because i've never tried it. i think it raises the compression ratio a tad and the 1.3 head flows much better than the 1.4. in other words it'll probably let more fuel and air through, or at least let it through faster! you'll need the 1.3 manifold as well.

[beghy]

I cant see that much increase in a 1.2 mate.

My nova is a 1.4sr its had following dun to it

Kent Cam AST2
4 Branch
Full s/s exhaust
webber 32/34 dtml carb (and a stnd manifold though)
K and N

My BHP is 81bhp at mo but apparantly will increase to about 90 if i get the right vernieer pully and a new distibuter (as mine is fcuked)

So if the 1.4 SR head is crap then if i was to put a 1.3 sr head on it will make a difference is that what ur saying? Wud that not let less fuel and air through? What u think?


Believe it or not the standard 1.4 cam is pretty good it has power from 1000-6000 rpm. u shouldnt have wasted your money on AST2 Cam its full of shit and it will only start pulling after u gone past 3000 rpm, i'd personally would have kept to the stardard cam its more driveable.
Get your self a 1.3 head & inlet and take it to rollers and get the carb jetted and you see 100Bhp or more.

[nova dosed]

why get the 1.3 inlet and carb when i have a webber 32/34 carb?

[beghy]

Yo nova dosed

Get your self a 1.3 HEAD & INLET MANIFOLD and take it to rollers and get the carb re-jetted and you'll see 100Bhp or more.

[Aragorn]

mate you'd be lucky to see 100bhp from a 1200 with fully worked head, big valves, twin 40's and a moster exhaust system and a stupidly wacky cam profile

the 1300 head will only make things worse as it will lower the compression

u wanna keep the 1200 head and get a 1300 inlet manifold - add to that either a pierburn 2E3 or a weber 32/34 then get it jetted for the engine
with a SR camshaft and decent exhasut system and manifold (GTE/SR or aftermarket) u might just see 70 bhp

[nova dosed]

so what do u lot recon toputting a 1.3 head on a 1.4 bottom block then

[Aragorn]

13 head on 1400 will rasie the compression and give better flow characteristics

you'll see a few bhp from the head alone

couple that with a 1300 inlet manifold for the carb, a weber 32/34 and some mods to the carb mounting face you should see 80-85bhp maybe more

[Snowface]

the 1.4sr cam has the highest lift out of all the nova's.

i'm currently sorting out getting a 1.3sr inlet and Pierburg 2e3.

then gonna get a better cam. prob kentcam. i will keep my 1200 head. and if i get a 1400 engine eventually i'll swap over the heads to raise compression. can raising compression do harm?
i know that really high compression creates knocking, where the gasses explode under pressure not sparks. but would a 1200 head on a 1400 do bad?
also the kentcam claims to give 12bhp extra. is that a lie then?

[Nova-Boy]

If you are going to raise compression through skimming the head then you will have to make sure that when using a higher lift cam the valves dont hit the piston!! That will make a mess! the timing will also have to be spot on or the same will happen.

As for 12BHP increase i have no idea but it sounds like quiet a lot.

Perhaps they mean a Kent cam can produce up to 12 BHP more on like a scooby or something.