1.4 bottom end on 1.3 head?

[Rich]

Has anyone done this?
Would it be just as good as putting a 1.6 bottom end on?

[Gina_G]

answered on r/r but I have done it and a few others on ssc have.

rallyesax made 119bhp with what was basically a complete S1 1.3 top end on his 1.4 alloy block furio, usual breathing mods 4branch exhaust etc helped that along.

I made 109bhp on my old setup but using a pre-cat xsi loom, ecu and inlet.

But using a 1.6 bottom end would be manic from what I remember of my mates old one, need to uprate the FPR in any chance to a 3.5bar one tho. It all depends what engine you can get hold of cheaper, its a worth while thing doing if you want a cheap power upgrade

[Rich]

Did you use a quiksilver bottom end on yours Gav?:)

[Gina_G]

yeah I did mate would have made more power with S1 inlet and ecu but the xsi stuff was easier to sort out at the time.

Need to think which engine you can get cheaper and is going to be easier to get hold of, but if just changing bottom ends on the S1 1.3 go for the 1.4 alloy block cheap and plentiful, keeps you in the cheap tax band and gives you 16v power with the usual stuff ontop.

So basically 1.4 alloy block bottom end, 3.5bar fpr from a silvertop quiksilver or VTR job done happy days

[RallyeDan]

Gina, msn now!

[Rich]

I know of a cheap quiksilver bottom end so i think ill go for that.:D

[106_Andy]

Just think of how big your anus is going to be when you come to insure this!

[Rich]

Just think of how big your anus is going to be when you come to insure this!

:D

[106nick]

wait til you can drive the chuffing thing.

Its going to be plenty quick enough @ 17. you dont want to be wrapped around a tree!

[Rich]

Could any one tell me weather a 205 xs bottom end would work.:)

[Gina_G]

yes it would make sure its alloy block tho, 205 xs looking at a rebuild if its done mega miles

[Steffrallye]

told you what to do rich lad, dont tell everyone lol ;)

[Rich]

Yeah thanks to steffen its now sorted and ill be picking up a...........

Of him soon.;)

Should be a bit diffrent., if nothing else.:)

[ATFoxy 106]

think what u wanna do is put the 1.4 pistons and rods onto the 1.3 crank and head and u will have a screamer

[RallyeDan]

Thats assuming the rods and pistons are the exact same length, i'll be finding out at the end of the week Rich;) I'll let you know how i get on:)

[liaminllan]

1.6xsi block + 1.3 rallye top end = beast