ARP rod bolts

[greg1.4]

hi there, i have just bought myself a fairly good spec engine for my road going nova..

it is a 1200 block, lightened and balanced flywheel, arp rod bolts, 1300 big valve head ect.. the head is a very good spec but i want to put it onto a 1400 block..

will the arp rod bolts and flywheel from the 1200 fit onto a 1400 block?

cheers

Greg

[Paul]

Yeh, they should do.

[mowgli]

I was always led to believe the 1.4 had a larger flywheel & clutch assy and fitment to the f13 box, this also meant the starter motor position is further out...........

if you manage to find a 1.3 & do the now legendary 1.2(pistons)+1.3(crank&rods)=1.4 conversion then you can use all of the old bits with no bother.

[Paul]

1400 came with f10's, apart from a few sri's

[greg1.4]

mowgli..i have a standard 1300 sr engine that came out the car..

what is the script with this 1200 pistons, 1300 crank and rtods ect ect.. what does it do/advantages do i get?

as i know a 1300 head on a 1400 block goes very well due to the raised compression..

[mowgli]

what is the script with this 1200 pistons, 1300 crank and rods ect ect.. what does it do/advantages do i get?

basically as above...
if you fit 1200 pistons to 1300 rods & either rebore a 1.3 or fit the 1.3 crank to a 1.2. you get a high compression 1400. it also doesn't have a 1400 engine number & you get good power using std parts....my old one did 115mph on a 1.2 carb & a std 1.3 exhaust

[greg1.4]

so is that combo better than fitting a 1400 block with 1300 head??

i since have found out that the engine i have bought (1200 block) has had new pistons in it about 100miles ago?wonder if they are 1300 items? it has been fully lightened and balanced with arp bolts..seems pointless to do this to a standard 1200 block??

i hope it has the combo you are on about..

if so the spec is-

1200 block
1200pistons
1300 lightened and balanced crank
lightened and balancd flywheel
arp bolt kit
Blydenstein Worked Big Valve head
Kent AST1 camshaft (may be changed for a slightly meatier cam though)
Kent alloy vernier Pulley
4 Branch manifold
Ashley exhaust system
Weber 40's

should go fairly well..what kind of power you think that will kick out? 110-120bhp?

[novaxe235]

i would say alittle less maybe between 95 -105

[Adam]

Stuart was going for 90-100hp from his mad spec 1.2 engine.

110hp is about the normal for a tuned 1400 8v, on twin carbs......

[greg1.4]

mmm..it will be more than 100bhp surely..

if it is just the same as a 1400 block anyway??

i know of 1400 blocks with similar spec to mine making around 110-120bhp mark, if it has fancy pistons they can make around 130-140 i believe..

[Adam]

Your spec says 1200 block and pistons...=1200 engine.......?

[greg1.4]

have i picked this up wrong..

the combo that mowgli was going on about (what i understood it to be anyway)

was 1200 block, 1300 crank and rods on 1200 pistons? this makes a high ompression 1400??? am i correct?

[Adam]

A 1400 block with a decent head should see about 110 on twin carbs aye

[greg1.4]

was hoping for slightly more than 110bhp..

what else could i do to make it crazy power for a 8v?

i have seen them near 150bhp before..proper rally engines though!

[novaxe235]

yes you are right adam is wrong i just cant see it being much more than 105 hp tbh

[mowgli]

have i picked this up wrong..

the combo that mowgli was going on about (what i understood it to be anyway)

was 1200 block, 1300 crank and rods on 1200 pistons? this makes a high ompression 1400??? am i correct?

correct... or a bored out 1300 block..

the 1.2 was a larger bore than the 1300.
the 1300 was a longer stroke than the 1.2, thus the need for the 1300 rods.
the piston heights were identical.

[Adam]

Most 1.6 8v's only see about 130ish brake....... with a spec like that.

[greg1.4]

so mowgli...is this better or the same as using a standard 1400 block with 1300 head??

[mowgli]

so mowgli...is this better or the same as using a standard 1400 block with 1300 head??

it is probably the same, but I have no experience of the 1400 factory engine.

[greg1.4]

i have...was quite impressive when i put 1300 head, cam, 40's on..

[novaxe235]

greg what dizzy do u run and what make manifold is it

[greg1.4]

1300 sr dizzy..

what manifold you on about matey?

the inlet is irmscher, 4 branch is unknown..dont have engine yet. should be here tomorrow hopefully..

[novaxe235]

i take it the dizzy is standard as in springs and weights if u want more power i would go for a performance dizzy for a better power curve as your one will not be advancing up right to match your cam and carbs and i would also check your exhaust manifold buy a decent quality one with a decent bore size not rubbish like ashley or janspeed i noticed a massive improvement going from ashley to sbd on my xe also do u run filters on ur carbs if so what ones

[greg1.4]

i thought ashley/janspeed were good?

it is a eurorallye competition 4 branch manifold..

http://www.eurorallye.co.uk/product_info.php?cPath=8_9&products_id=194

it has pipercross filters (socks)

what dizzy should i run? do you know a decent setup?

cheers

[novaxe235]

they are good depending on what you want but you say you want big power you wouldnt see a comp/rally car with a ashley system on it if it were me i would try simpson or sbd the filter socks are rubbish i also had them on my 48's again you lose power through them try h+h 01384261500 they also have a website google it for a proper dizzy to match your engine these little things all add up to give more power