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chris_gilly

Member

Registered: 13th Nov 08
Location: Birkenhead, Merseyside
User status: Offline

8th Dec 08 at 20:29

hi i know theres another thread about this but its got out of hand so here i go.....
i just want to put maybe a bigger inlet or exhaust manifolds and maybe a bigger SPI unit! my car is a 1.2 8v and i dont want to have an engine swap

lol so i just want a little bit of extra poke! so what bigger manifolds would fit and what would i get from fitting it?? also if i fit a bigger SPI unit what would it involve?? and what would i expect??

thanks!!

DAZ1985

Member

Registered: 3rd Sep 06
Location: Scholar Green, Cheshire
User status: Offline

8th Dec 08 at 20:32

Chances are this thread will end up the same

chris_gilly

Member

Registered: 13th Nov 08
Location: Birkenhead, Merseyside
User status: Offline

8th Dec 08 at 20:33

before it starts 20valver please stay away!!!

20valver

Banned

Registered: 14th Sep 08
User status: Offline

8th Dec 08 at 22:33

quote:
Originally posted by chris_gilly
hi i know theres another thread about this but its got out of hand so here i go.....
i just want to put maybe a bigger inlet or exhaust manifolds and maybe a bigger SPI unit! my car is a 1.2 8v and i dont want to have an engine swap lol so i just want a little bit of extra poke! so what bigger manifolds would fit and what would i get from fitting it?? also if i fit a bigger SPI unit what would it involve?? and what would i expect??

thanks!!

you could if you wanted to try a 1.6 spi throttle body or even a 1.8 spi throttle body then the inlet manifold will need lining up with the size of throttle body you are using,
you could also line up the intake runners to the size of the inlet manifold gasket and the same with the inlet ports but remember to finish these in 80 grit hone marks , on a small engined car ie 1000 cc to a 1600cc then a 4>2>1 exhaust manifold and down pipes my 4>2>1 exhaust manifold and down pipes came from a c16se,
you could if you wanted to line up exhaust manifold to the exhaust gasket

shaun 16v

Member

Registered: 29th Apr 08
Location: Newcastle-under-Lyme, Staffordshire
User status: Offline

8th Dec 08 at 22:36

quote:
Originally posted by chris_gilly
before it starts 20valver please stay away!!!

lol unlucky

James_H

Member

Registered: 16th Sep 07
Location: Slough, Berkshire
User status: Offline

8th Dec 08 at 22:36

20valver

Banned

Registered: 14th Sep 08
User status: Offline

8th Dec 08 at 22:37

you could if you wanted to put a 1.6 spi inlet manifold on, if the inside diameter of the intake runners gets to big then you could loose pressure/velocity on intake cycle ie does not work at low speed engine revs or not work at all or just work high up the rev range

20valver

Banned

Registered: 14th Sep 08
User status: Offline

8th Dec 08 at 22:37

quote:
Originally posted by shaun 16v

quote:
Originally posted by chris_gilly
before it starts 20valver please stay away!!!

lol unlucky

this is what can be done if you wanted to

DAZ1985

Member

Registered: 3rd Sep 06
Location: Scholar Green, Cheshire
User status: Offline

9th Dec 08 at 07:42

chris_gilly

Member

Registered: 13th Nov 08
Location: Birkenhead, Merseyside
User status: Offline

9th Dec 08 at 10:42

seriously what would be my best bet just a simple swap onto my 1.2 8v spi?? even for the slightest improvement??

evans_corsab

Member

Registered: 23rd Sep 08
Location: Cheshire.
User status: Offline

9th Dec 08 at 13:01

Lmaooo ! daz warned you !!!

evans_corsab

Member

Registered: 23rd Sep 08
Location: Cheshire.
User status: Offline

9th Dec 08 at 13:02

bang on a 1.6 astra inlet and a 1.8 cav throttle body kurt did it and i remember reading somewhere it was keeping with a 1.4 8 valve .

mad_mike252

Member

Registered: 15th Nov 07
Location: Nottinghamshire
User status: Offline

9th Dec 08 at 13:32

1.6 cam too

sand-eel

Member

Registered: 15th Mar 07
Location: carluke/braidwood--IRNBRULAND
User status: Offline

9th Dec 08 at 15:24

there is no escape, but the mods are possible.

20valver

Banned

Registered: 14th Sep 08
User status: Offline

9th Dec 08 at 15:39

quote:
Originally posted by sand-eel
there is no escape, but the mods are possible.

this what should be done

chris_gilly

Member

Registered: 13th Nov 08
Location: Birkenhead, Merseyside
User status: Offline

9th Dec 08 at 15:57

so list of parts to put on 1.6 8v cam, (will this work?? i had a previous thread about bigger cams and got told not really i think??) 1.6 astra inlet and 1.8 SPI unit or just the body and keep the 1.2 injector?

thanks for the serious help guys!

chris_gilly

Member

Registered: 13th Nov 08
Location: Birkenhead, Merseyside
User status: Offline

9th Dec 08 at 18:58

any one know???

mad_mike252

Member

Registered: 15th Nov 07
Location: Nottinghamshire
User status: Offline

9th Dec 08 at 23:21

yes 1.6 cam , inlet 1.6 or 1.8 throttle body

chris_gilly

Member

Registered: 13th Nov 08
Location: Birkenhead, Merseyside
User status: Offline

10th Dec 08 at 00:15

ok me thinks im off to go shopping tomorrow morning!

thanks for the help guys!