View Full Version : carb and inlet swap.
slammed saloon
18-07-05, 07:18 AM
ive just bought a donor 1.4sr which eventually im going to put the engine out of in mine but i was wondering if the inlet manifold from the sr will fit my 1.2? it says in the 1.2 tuning guide that its different to the 1.3sr but ive been told otherwise. how are they different? thanx
Won't fit.
1400 and 1200 Port shapes are different, so the inlet manifold won't match up to the head.
Can be done ive done it on mine, im runnin the pierburg 2e3 carb, inlet and exhaust manifold from me h reg mk2 1.4 SR on a h reg mk2 1.2 an she goes like a whippet, with a 3" exhaust too, they aint too happy with it tho cos u need to get it set up properly by a tuner but i aint got round to that yet lol, good luck tho its worth it!!!!
slammed saloon
18-07-05, 07:15 PM
wat so they bolt straight on? the inlet n carb is from a g reg 1.4sr n my 1.2 is f reg. hw u mean it aint to happy? rough idle?
it wont fit mate
if you look at the port shape on a 1.4 inlet you will see that there a square shape
if you look at the port shape on the 1.2 head they are are round ish shape - thats why you have to use the 1.3 inlet to fit as its round ish aswell
the other option would be to use a injection head as iirc the ports are square on them aswell - but the 1.2 head flows better so i have been told (except for the 1.4 mpi head)
Yeah mine misses a bit wen cold an down the bottom of the rev range but once she is movin its not slow for a 1.2, if i got it tuned i think it would be a lot better if i got her tuned by a pro but its not bad for a homedone job!!!!
Im well confused now cos thats 2 ppl sayin it wont fit but i know for a fact that it works cos ive already done it!!!!
^^^ what engine was yours originally
pics of your inlet and head combination aswell please if you have got them
and did you make sure that the ports matched or did you just fit a square inlet to a round head
The original engine was a basic 1.2 on carbs, got no pix as yet an yes its the square ports on the manifold and sort of oval on the block, the donor was a mk2 1.4sr on an H-plate, i got a feature on ere ill put pix of the engine on in bout 20 mins if ure still on!!
Im well confused now cos thats 2 ppl sayin it wont fit but i know for a fact that it works cos ive already done it!!!!
It won't work mate.
You can fit a 1300SR inlet as that matches the head, but the 1400 inlet won't fit :wink:
You can fit the 1300 inlet, and carb, thats a nice mod for a 1.2 carb engine.
The original engine was a basic 1.2 on carbs, got no pix as yet an yes its the square ports on the manifold and sort of oval on the block, the donor was a mk2 1.4sr on an H-plate, i got a feature on ere ill put pix of the engine on in bout 20 mins if ure still on!!
theres your probleam mate as they dont match correctly it will never run right and will prob do more damage
Honestly peeps it can be done cos ive done it to mine, gonna update mt feature on ere in a few mins with a couple of pix!!!!
slammed saloon
18-07-05, 07:51 PM
ok cheers lads any one now of a 1.3sr inlet n carb goin cheap?????
:roll: come on mate you have just admited that you have fitted a square port inlet to a round port head
yes it will bolt on but it will never run correctly
please just listen to peoples advice as were only trying to help you at the end of the day
Honestly peeps it can be done cos ive done it to mine, gonna update mt feature on ere in a few mins with a couple of pix!!!!
Yeah it CAN be done, but as riggy said, it will run shite.
ANd probably reduce your bhp to less than the 1.2 as standard.
As the diff port shapes will reduce flow, reducing fuel/air going in, so not running well.
Must admit it does run a bit poo, misses a bit if u rev it slowly and real bad wen its cold but it is well nippy wen its runnin at temp!!!!!
Must admit it does run a bit poo, misses a bit if u rev it slowly and real bad wen its cold but it is well nippy wen its runnin at temp!!!!!
Fit a 1300inlet and see how much better it runs.
GUARANTEED
Ahh ill jus leave it for now got the full SR engine to go in yet so ill wait for now, wasnt tryin to sound funny ere peeps hope ive not offended anyone or made em think im jus some dumb chav lol soz peeps
General Baxter
18-07-05, 08:10 PM
'snig*ger' 'giggle' sorry runs off :roll:
see it this way mate!
remember them kids games where you have to put a block though a round hole! you can make it fit with a large hammer, but it will never go though as smoothly as it would if you stuck it thought the square hole :lol:
Oh well thats me definately told then lol (spud hides in corner now feeling silly)
remember them kids games where you have to put shapes through holes :
Remember them, i still play them in the Dentists waiting room etc, lmao :lol:
Thats a suprisingly good way of putting it baxter, not what i would of expected off you :wink:
slammed saloon
18-07-05, 08:23 PM
was thinkin the same good comment lol!!!! any one got a 1.3sr inlet n carb or no of one i can buy!!!!!!!!!!!!!
baxter did have iirc as he rempved it for his turbo attempt
Hmmm thats left me thinkin of do i change the engine or stick with me 1.2 an find 1.3 carbs, r the 1.3`s auto-choke or manual????
Would it make a lot more difference over me 1.4 jobbies?????
slammed saloon
18-07-05, 08:30 PM
riggy wat u say bout baxter he got wat?
General Baxter
18-07-05, 08:30 PM
T40's
T40's
Hmmm, in an ideal world id love em but theyre a touch outta my price range at the mo!!!!
lol baxter did have a 1.3 inlet didnt you :lol:
srspud if you are goin to fit the 1.4 then just fit the whole lot - although the 1.2 hybrid can be made to have more power then the 1.4 just by useing std vaux parts from 1.2/1.3 and 1.4 engines :lol:
slammed saloon
18-07-05, 08:34 PM
baxter u no anyone hu has a 1.3sr inlet n carb for sale?
General Baxter
18-07-05, 08:35 PM
yeah sam (mad driver) i GAVE him mine, i even gave him yes gave him a free ram air filter and a ported and worked inlet manifold :wink:
lol baxter did have a 1.3 inlet didnt you :lol:
srspud if you are goin to fit the 1.4 then just fit the whole lot - although the 1.2 hybrid can be made to have more power then the 1.4 just by useing std vaux parts from 1.2/1.3 and 1.4 engines :lol:
Oooohh tellme more hows this managed then mate????
slammed saloon
18-07-05, 08:37 PM
you gave it him!!!!!!!!!!!!!!!!!!!! no any one hus got one? i desperate for more power!!!!!!!!!
General Baxter
18-07-05, 08:38 PM
i did not give IT him, i gave them to him :lol:
slammed saloon
18-07-05, 08:41 PM
choked!!!!!!!!! is he using THEM? n do u no of any others
General Baxter
18-07-05, 08:43 PM
Lol, it sould like your begging me :lol:
shall we start small, would you like a grape?
slammed saloon
18-07-05, 08:44 PM
i am!!!!!!!!!!!! do you?
slammed saloon
18-07-05, 08:54 PM
do you no any one with a carb and inlet i mean?????????????
Hmmm sounds like some flirtin goin on ih ere lol,so would i be better tryin to tune me 1.2 an changin to 1.3 carbs or puttin me 1.4 in not sure how good the 1.4 is gonna be tho cos its been stood for a yr with no manifolds on it!!!!
slammed saloon
18-07-05, 08:57 PM
so strip n rebuild the 1.4 its well easy i doin it to mine before i put it in. when u gt it apart get the crank reground n balanced flywheel balancedn uprate cam etc itll go like a misile then.
'this thing doesnt turn heads, it snaps necks!'
do you no any one with a carb and inlet i mean?????????????
Look on ebay, in scrappys, and in the parts for sale section on here.
sounds like a plan to me but im not sure as i wanna faff with pullin me cam n stuff to bits ie cam timin n stuff on re-build!!!!
slammed saloon
18-07-05, 09:01 PM
i have mate but they must be like rocking horse poop cuz i cant find one anywhere!!!!!!!!!!!!!
slammed saloon
18-07-05, 09:02 PM
timing is easy on a single cam engine!!!!!!!!!!! thats hw ull get serious power from a 1.4 then add some t40s n u gt one hell of a quick 1.4
Right how much work is involved in a re-build i aint ya typical dumbass but im not very confident on stuff like that
I did do a basic mechanics course tho lol
slammed saloon
18-07-05, 09:10 PM
strip the engine get the head off first take out the valves n send the head to be ported and polished. when it comes back lap the valves back in n refit them. this would make a difference alone with a fast road cam n uprated lifters but if u wanna go the whole hog get ur crank reground n the fly wheel lightened n balanced. nt hard wen u gt stuck in
Dont sound too bad lol, how u mean lap the valves is that where u grind em back in cos ive done that before at college!!!!
lol baxter did have a 1.3 inlet didnt you :lol:
srspud if you are goin to fit the 1.4 then just fit the whole lot - although the 1.2 hybrid can be made to have more power then the 1.4 just by useing std vaux parts from 1.2/1.3 and 1.4 engines :lol:
Oooohh tellme more hows this managed then mate????
right 1.2 engine
1.3 inlet and carb
1.4 cam
1.3 crank and rods (increses tge cc to 1400)
Hmmmm not sure wot to do now, btw wots tge mean????
slammed saloon
18-07-05, 09:25 PM
yea thats it mate to get them seated properly
lol meant to be the :oops:
lol meant to be the :oops:
slammed saloon
18-07-05, 09:30 PM
do u need to uprate the followers if u go from a 1.2 cam to a 1.4sr one? and would just the cam n the carb make a good difference?
do u need to uprate the followers if u go from a 1.2 cam to a 1.4sr one? and would just the cam n the carb make a good difference?
Get the followers that were fitted to the cam, as they will be worn perfectly to the cam lobes
And fit them in the order they were removed.
Ahhh that well had me wonderin lol cheers for the info peeps much appreciated
slammed saloon
18-07-05, 09:32 PM
will it be a good power increase though?
Snowface
18-07-05, 09:50 PM
a 1.4sr inlet manifold will fit a 1.2i head as they also have square ports.
You say yours is a mk2 H-reg. is it an injection or Carb SrSpudly?
If its carb head and your using a 1.4sr inlet it will be like trying to crap through a sieve.
don't forget to use the 1.4sr dizzy with the 1.4 cam.
Its a carb head, so i take it that im doin more damage than good on this one then???
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