1600 8v on twin 40's?

[greg1.4]

hi, bought myself my next engine for my nova..

1600 8v gsi engine, i want to put my twin 40's from my sr onto it.

what size of chokes/jets do i need in the gsi to get it to run fairly decent?

also does anyone know where i can check to see what size of chokes is in my carbs?

i have took the trumpet off and looked in the barrol/choke and it has 30 stamped into it.

does this mean they are 30mm chokes?

if someone could tell me where to identify what chokes i have got already it would be great?

cheers

Greg

[Tommy_nova]

you sold me a set of webbers and a cam off a 1600 gsi engine so you said at the time dont mean to be funny but forgot have you..

[mills]

if you screw the gold caps of the top of the carbs you can take the chokes out an it should say what the chokes are

[comptoncj]

if they have 30 on them then the chokes are 30mm, im running 27mm in my 1300 i would have thought 30mm would be ok but be getting on the large side, as for jets i think theres some info in the articles about it

[greg1.4]

is that not the jets mills?

tommy-nova, i certainly did sell you a set for a 1600. i didnt strip them down and write all the jet size's etc down though.they ran fine at the time so there was no need to.

now i have a set of 40's on a sr engine but want to put a gsi engine in my car again.

[greg1.4]

comptoncj- thanks, where can i find out for sure they are 30mm chokes?

i have looked in from trumpet side and inside there is a 30 stamped on. i was just presuming that was the choke size?

how can i tell for sure though?

[comptoncj]

nah if you see 30 down behind the trumpet its 30mm chokes, and the main jets will be something like 110s but you will need bigger if your running a 1600 you will also need to run the sr dizzy :)

[greg1.4]

right cheers!

will keep you posted.

[comptoncj]

oki doki chap :) you gonna run a nice cam or anything or just standard internals with the 40s?

[greg1.4]

i will need to get myself a cam.

the sr engine i have in my nova atm has alot done to it, arp bolts, pistons, l+b, kent cam/vernier pulley bla bla.

i want to keep that engine complete though incase the 1600 conversion doesnt go to plan.lol

so i will be looking for a kent ast2 (or similar) and a 1600 inlet manifold for 40's..

[comptoncj]

hehe yeah sounds like a plan, my 1300 was running 40s and an ast2 n lightened flywheel, was quite quick but the engine had only done a thousand miles since rebuild ( lets just say i was miss informed about metric and imperial oil filters grr) so i reckon it had more to give, loved it though would kill vtrs and things like that ive got a 1600 and i was toying with the idea of building that up to the same spec but i dont really wanna spend the money on another inlet manifold, might try it with the 1300 one

[greg1.4]

nice! dont know how mine would get on against a vts or such like..i can beat 1400 mg's, quicksilvers etc..

i am thinking about just putting my 1300 inlet on to save time and money atm.

i know i may lose some power, but cant see it being a mega amount...

[Stanley]

Im sure John McKean would help you out if you took a 1300 manifold and a 1600 head in to him Greg.

[comptoncj]

my uncle still uses his irmscher inlet manifold on his 1600 race car running 50mm throttle bodies, i think the head was slightly adapted to make the manifold fit better, but it must work because that engine developed 190bhp :)

[Tommy_nova]

greg you can buy the cam you sold me back its not bein used now pm me