converting to carb (want to put T40's on an sri)

[gez c16b]

im thinking of putting twin 40's on my nova sri.
the nova SR is single carb as standard. so would that mean i can just get the nova SR set up for carb and just buy the twin 40's and inlet? and a set up?

new to the whole carb thing so...help is needed http://corsasport.co.uk/board/images/smile/smile.gif

gez

[Stuart]

mech forum!!!

[gez c16b]

cheers for moving it

[Stuart]

basically its going to be the same as fitting T40's to a 1.6 engine.

[mowgli]

quite simply it is an expenditure of around £500 to go back thirty years in engine technology.....that 500 quid would make your injection motor go fairly rapidly if spent wisely.

[Paul]

yeh but the carbs sound so sweet!

[Stuart]

but a decent spec MPI'd lump sounds horny!

[gez c16b]

what would you do with £500 to an injection engine?
but.. i do like the sound of carbs, and performance increase

[Stuart]

what has the rest of the engine had done to it? as carbs on their own wont make "that" much of a difference to an std engine (by the way an exhaust isnt a mod in my book)

[Paul]

the SRI heads are really good as standard to be fair. With a decent cam the 40s would see 120bhp, which IMO is a good gain 50% of engine power

[Stuart]

cam + management would probably see the same with good mapping

[MK999]

Could you really get it cammed on standalone management and then mapped well for under £500 though?

[Paul]

no

[Paul]

but there and again you cant do 40s for £500

[MK999]

I've seen 40's on a manifold for 250 before now, setting them up can't cost that again surely?

[gez c16b]

the engine is standard at the moment. cam and carbs sound good to me, ive been offered a kent cam and pulley for a good price and ill keep an eye out of a bargain with carbs.

anyway back to the subject. how do i go about converting the engine to carb, what will i need all together, as i said im new to th whole carb thing so help is needed

[Stuart]

http://www.pngclub.com/forum/showthread.php?t=93431

from post#2

cheap carbs might not be best economy..... bent spindles etc can make them cheap and accrue the old wives tales of needing to be set up all the time etc.

[gez c16b]

ive been told you can use the 1.6 inlet to fit the carbs?

[Paul]

Right,

You need to bin the whole loom, inlet dizzy, coil and ECU etc (well not bin sell lol)

You need a manifold that suits the SRi/GTE/GSi cylinder head to take the carbs. Obviosuly you need the twin carbs them selves, a 1400SR dizzy and coil. The linkage for the throttle cable, and finally you need a lower alternator bracket for the alternator.

Then you need to have it setup, to do it right you are looking at £600-1000 depending on what bits you buy new, and what bits you buy second hand.

[gez c16b]

cheers buddy! been waiting for a reply that can help. lol
i was told that i will need to change the fuel pump aswel?

[pikey1986]

buy an adjustable fuel pressure regulator

[Stuart]

am I on ignore? lol

I did say it was 95% the same as fitting to a 1.6

you will need a pressure reg that can go form injection pressure down to 3psi for the carbs.

in all honesty though, Cam + management + good setup would be as good if not better than carbs, plus a feck load less cocking about